10-Q Filing

Interactive Brokers Group, Inc. CIK: 1381197 Q1 2025

Filing Information

Form Type	10-Q
Accession Number	`0001381197-25-000052`
Period End Date	20250331
Filing Date	20250508
Fiscal Year	2025
Fiscal Period	Q1
XBRL Instance	ibkr-20250331x10q_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 144 Income Statement 128 Cash Flow Statement 174 Stockholders Equity 42

Balance Sheet 144 line items

Line Item	Tag	Value	Unit	Period
Allowance for credit losses	`AllowanceForDoubtfulAccountsReceivable`	$26.00M	USD	Point-in-time
Allowance for credit losses	`AllowanceForDoubtfulAccountsReceivable`	$26.00M	USD	Point-in-time
Allowance for credit losses	`AllowanceForDoubtfulAccountsReceivable`	$25.00M	USD	Point-in-time
Allowance for credit losses	`AllowanceForDoubtfulAccountsReceivable`	$25.00M	USD	Point-in-time
Accumulated other comprehensive income tax	`AccumulatedOtherComprehensiveIncomeLossTax`	-	USD	Point-in-time
Accumulated other comprehensive income tax	`AccumulatedOtherComprehensiveIncomeLossTax`	-	USD	Point-in-time
Accumulated other comprehensive income tax	`AccumulatedOtherComprehensiveIncomeLossTax`	-	USD	Point-in-time
Accumulated other comprehensive income tax	`AccumulatedOtherComprehensiveIncomeLossTax`	-	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.06B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.06B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.63B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.63B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.50B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.50B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$36.60B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$36.60B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$29.96B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$29.96B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$39.17B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$39.17B	USD	Point-in-time
Treasury stock shares	`TreasuryStockCommonShares`	156,446.00	shares	Point-in-time
Treasury stock shares	`TreasuryStockCommonShares`	156,446.00	shares	Point-in-time
Treasury stock shares	`TreasuryStockCommonShares`	168,735.00	shares	Point-in-time
Treasury stock shares	`TreasuryStockCommonShares`	168,735.00	shares	Point-in-time
Securities - segregated for regulatory purposes	`SecuritiesReserveDepositRequiredAndMade`	$29.39B	USD	Point-in-time
Securities - segregated for regulatory purposes	`SecuritiesReserveDepositRequiredAndMade`	$29.39B	USD	Point-in-time
Securities - segregated for regulatory purposes	`SecuritiesReserveDepositRequiredAndMade`	$27.85B	USD	Point-in-time
Securities - segregated for regulatory purposes	`SecuritiesReserveDepositRequiredAndMade`	$27.85B	USD	Point-in-time
Securities borrowed	`SecuritiesBorrowed`	$5.37B	USD	Point-in-time
Securities borrowed	`SecuritiesBorrowed`	$5.37B	USD	Point-in-time
Securities borrowed	`SecuritiesBorrowed`	$5.84B	USD	Point-in-time
Securities borrowed	`SecuritiesBorrowed`	$5.84B	USD	Point-in-time
Securities purchased under agreements to resell	`SecuritiesPurchasedUnderAgreementsToResell`	$8.38B	USD	Point-in-time
Securities purchased under agreements to resell	`SecuritiesPurchasedUnderAgreementsToResell`	$8.38B	USD	Point-in-time
Securities purchased under agreements to resell	`SecuritiesPurchasedUnderAgreementsToResell`	$6.58B	USD	Point-in-time
Securities purchased under agreements to resell	`SecuritiesPurchasedUnderAgreementsToResell`	$6.58B	USD	Point-in-time
Financial instruments owned, at fair value	`FinancialInstrumentsOwnedAtFairValue`	$1.92B	USD	Point-in-time
Financial instruments owned, at fair value	`FinancialInstrumentsOwnedAtFairValue`	$1.92B	USD	Point-in-time
Financial instruments owned, at fair value	`FinancialInstrumentsOwnedAtFairValue`	$3.41B	USD	Point-in-time
Financial instruments owned, at fair value	`FinancialInstrumentsOwnedAtFairValue`	$3.41B	USD	Point-in-time
Customers, less allowance for credit losses of $26 and $25 as of March 31, 2025 and December 31, 2024	`ReceivablesFromCustomerNet`	$64.43B	USD	Point-in-time
Customers, less allowance for credit losses of $26 and $25 as of March 31, 2025 and December 31, 2024	`ReceivablesFromCustomerNet`	$64.43B	USD	Point-in-time
Customers, less allowance for credit losses of $26 and $25 as of March 31, 2025 and December 31, 2024	`ReceivablesFromCustomerNet`	$63.86B	USD	Point-in-time
Customers, less allowance for credit losses of $26 and $25 as of March 31, 2025 and December 31, 2024	`ReceivablesFromCustomerNet`	$63.86B	USD	Point-in-time
Brokers, dealers and clearing organizations	`ReceivablesFromBrokersDealersAndClearingOrganizations`	$2.50B	USD	Point-in-time
Brokers, dealers and clearing organizations	`ReceivablesFromBrokersDealersAndClearingOrganizations`	$2.50B	USD	Point-in-time
Brokers, dealers and clearing organizations	`ReceivablesFromBrokersDealersAndClearingOrganizations`	$2.20B	USD	Point-in-time
Brokers, dealers and clearing organizations	`ReceivablesFromBrokersDealersAndClearingOrganizations`	$2.20B	USD	Point-in-time
Interest	`InterestReceivable`	$446.00M	USD	Point-in-time
Interest	`InterestReceivable`	$446.00M	USD	Point-in-time
Interest	`InterestReceivable`	$443.00M	USD	Point-in-time
Interest	`InterestReceivable`	$443.00M	USD	Point-in-time
Total receivables	`ReceivablesNet`	$67.07B	USD	Point-in-time
Total receivables	`ReceivablesNet`	$67.07B	USD	Point-in-time
Total receivables	`ReceivablesNet`	$66.80B	USD	Point-in-time
Total receivables	`ReceivablesNet`	$66.80B	USD	Point-in-time
Other assets	`OtherAssets`	$1.12B	USD	Point-in-time
Other assets	`OtherAssets`	$1.12B	USD	Point-in-time
Other assets	`OtherAssets`	$1.18B	USD	Point-in-time
Other assets	`OtherAssets`	$1.18B	USD	Point-in-time
Total assets	`Assets`	$150.14B	USD	Point-in-time
Total assets	`Assets`	$150.14B	USD	Point-in-time
Total assets	`Assets`	$157.67B	USD	Point-in-time
Total assets	`Assets`	$157.67B	USD	Point-in-time
Short-term borrowings	`OtherShortTermBorrowings`	$14.00M	USD	Point-in-time
Short-term borrowings	`OtherShortTermBorrowings`	$14.00M	USD	Point-in-time
Short-term borrowings	`OtherShortTermBorrowings`	$12.00M	USD	Point-in-time
Short-term borrowings	`OtherShortTermBorrowings`	$12.00M	USD	Point-in-time
Securities loaned	`SecuritiesLoaned`	$16.89B	USD	Point-in-time
Securities loaned	`SecuritiesLoaned`	$16.89B	USD	Point-in-time
Securities loaned	`SecuritiesLoaned`	$16.25B	USD	Point-in-time
Securities loaned	`SecuritiesLoaned`	$16.25B	USD	Point-in-time
Financial instruments sold, not yet purchased, at fair value	`FinancialInstrumentsSoldNotYetPurchasedAtFairValue`	$252.00M	USD	Point-in-time
Financial instruments sold, not yet purchased, at fair value	`FinancialInstrumentsSoldNotYetPurchasedAtFairValue`	$252.00M	USD	Point-in-time
Financial instruments sold, not yet purchased, at fair value	`FinancialInstrumentsSoldNotYetPurchasedAtFairValue`	$293.00M	USD	Point-in-time
Financial instruments sold, not yet purchased, at fair value	`FinancialInstrumentsSoldNotYetPurchasedAtFairValue`	$293.00M	USD	Point-in-time
Customers	`PayablesToCustomers`	$115.34B	USD	Point-in-time
Customers	`PayablesToCustomers`	$115.34B	USD	Point-in-time
Customers	`PayablesToCustomers`	$120.65B	USD	Point-in-time
Customers	`PayablesToCustomers`	$120.65B	USD	Point-in-time
Brokers, dealers and clearing organizations	`PayablesToBrokerDealersAndClearingOrganizations`	$1.23B	USD	Point-in-time
Brokers, dealers and clearing organizations	`PayablesToBrokerDealersAndClearingOrganizations`	$1.23B	USD	Point-in-time
Brokers, dealers and clearing organizations	`PayablesToBrokerDealersAndClearingOrganizations`	$476.00M	USD	Point-in-time
Brokers, dealers and clearing organizations	`PayablesToBrokerDealersAndClearingOrganizations`	$476.00M	USD	Point-in-time
Affiliate	`OtherLiabilities`	$195.00M	USD	Point-in-time
Affiliate	`OtherLiabilities`	$195.00M	USD	Point-in-time
Affiliate	`OtherLiabilities`	$195.00M	USD	Point-in-time
Affiliate	`OtherLiabilities`	$195.00M	USD	Point-in-time
Accounts payable, accrued expenses and other liabilities	`AccruedLiabilitiesCurrentAndNoncurrent`	$665.00M	USD	Point-in-time
Accounts payable, accrued expenses and other liabilities	`AccruedLiabilitiesCurrentAndNoncurrent`	$665.00M	USD	Point-in-time
Accounts payable, accrued expenses and other liabilities	`AccruedLiabilitiesCurrentAndNoncurrent`	$657.00M	USD	Point-in-time
Accounts payable, accrued expenses and other liabilities	`AccruedLiabilitiesCurrentAndNoncurrent`	$657.00M	USD	Point-in-time
Interest	`InterestPayableCurrentAndNoncurrent`	$311.00M	USD	Point-in-time
Interest	`InterestPayableCurrentAndNoncurrent`	$311.00M	USD	Point-in-time
Interest	`InterestPayableCurrentAndNoncurrent`	$297.00M	USD	Point-in-time
Interest	`InterestPayableCurrentAndNoncurrent`	$297.00M	USD	Point-in-time
Total payables	`OtherPayables`	$116.99B	USD	Point-in-time
Total payables	`OtherPayables`	$116.99B	USD	Point-in-time
Total payables	`OtherPayables`	$123.03B	USD	Point-in-time
Total payables	`OtherPayables`	$123.03B	USD	Point-in-time
Total liabilities	`Liabilities`	$133.54B	USD	Point-in-time
Total liabilities	`Liabilities`	$133.54B	USD	Point-in-time
Total liabilities	`Liabilities`	$140.19B	USD	Point-in-time
Total liabilities	`Liabilities`	$140.19B	USD	Point-in-time
Commitments, contingencies and guarantees (see Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments, contingencies and guarantees (see Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments, contingencies and guarantees (see Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments, contingencies and guarantees (see Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$1.82B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$1.82B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$1.83B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$1.83B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.52B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.52B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.70B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.70B	USD	Point-in-time
Accumulated other comprehensive income, net of income taxes of $0 as of both March 31, 2025 and December 31, 2024	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-17.00M	USD	Point-in-time
Accumulated other comprehensive income, net of income taxes of $0 as of both March 31, 2025 and December 31, 2024	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-17.00M	USD	Point-in-time
Accumulated other comprehensive income, net of income taxes of $0 as of both March 31, 2025 and December 31, 2024	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-45.00M	USD	Point-in-time
Accumulated other comprehensive income, net of income taxes of $0 as of both March 31, 2025 and December 31, 2024	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-45.00M	USD	Point-in-time
Treasury stock, at cost, 168,735 and 156,446 shares as of March 31, 2025 and December 31, 2024	`TreasuryStockValue`	$11.00M	USD	Point-in-time
Treasury stock, at cost, 168,735 and 156,446 shares as of March 31, 2025 and December 31, 2024	`TreasuryStockValue`	$11.00M	USD	Point-in-time
Treasury stock, at cost, 168,735 and 156,446 shares as of March 31, 2025 and December 31, 2024	`TreasuryStockValue`	$7.00M	USD	Point-in-time
Treasury stock, at cost, 168,735 and 156,446 shares as of March 31, 2025 and December 31, 2024	`TreasuryStockValue`	$7.00M	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$4.28B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$4.28B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$4.50B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$4.50B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$12.98B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$12.98B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$12.32B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$12.32B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.07B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.07B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.66B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.66B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.60B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.60B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.48B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.48B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$157.67B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$157.67B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$150.14B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$150.14B	USD	Point-in-time

Income Statement 128 line items

Line Item	Tag	Value	Unit	Period
Commissions	`BrokerageCommissionsRevenue`	$379.00M	USD	1 Quarter
Commissions	`BrokerageCommissionsRevenue`	$379.00M	USD	1 Quarter
Commissions	`BrokerageCommissionsRevenue`	$514.00M	USD	1 Quarter
Commissions	`BrokerageCommissionsRevenue`	$514.00M	USD	1 Quarter
Other fees and services	`OtherFeesAndServices`	$59.00M	USD	1 Quarter
Other fees and services	`OtherFeesAndServices`	$59.00M	USD	1 Quarter
Other fees and services	`OtherFeesAndServices`	$78.00M	USD	1 Quarter
Other fees and services	`OtherFeesAndServices`	$78.00M	USD	1 Quarter
Other income	`OtherIncomeLoss`	$18.00M	USD	1 Quarter
Other income	`OtherIncomeLoss`	$18.00M	USD	1 Quarter
Other income	`OtherIncomeLoss`	$65.00M	USD	1 Quarter
Other income	`OtherIncomeLoss`	$65.00M	USD	1 Quarter
Total non-interest income	`NoninterestIncome`	$657.00M	USD	1 Quarter
Total non-interest income	`NoninterestIncome`	$657.00M	USD	1 Quarter
Total non-interest income	`NoninterestIncome`	$456.00M	USD	1 Quarter
Total non-interest income	`NoninterestIncome`	$456.00M	USD	1 Quarter
Interest income	`InterestIncomeOperating`	$1.76B	USD	1 Quarter
Interest income	`InterestIncomeOperating`	$1.76B	USD	1 Quarter
Interest income	`InterestIncomeOperating`	$1.72B	USD	1 Quarter
Interest income	`InterestIncomeOperating`	$1.72B	USD	1 Quarter
Interest expense	`InterestExpenseOperating`	$1.01B	USD	1 Quarter
Interest expense	`InterestExpenseOperating`	$1.01B	USD	1 Quarter
Interest expense	`InterestExpenseOperating`	$948.00M	USD	1 Quarter
Interest expense	`InterestExpenseOperating`	$948.00M	USD	1 Quarter
Total net interest income	`InterestIncomeExpenseNet`	$747.00M	USD	1 Quarter
Total net interest income	`InterestIncomeExpenseNet`	$747.00M	USD	1 Quarter
Total net interest income	`InterestIncomeExpenseNet`	$770.00M	USD	1 Quarter
Total net interest income	`InterestIncomeExpenseNet`	$770.00M	USD	1 Quarter
Total net revenues	`RevenuesNetOfInterestExpense`	$1.43B	USD	1 Quarter
Total net revenues	`RevenuesNetOfInterestExpense`	$1.43B	USD	1 Quarter
Total net revenues	`RevenuesNetOfInterestExpense`	$1.20B	USD	1 Quarter
Total net revenues	`RevenuesNetOfInterestExpense`	$1.20B	USD	1 Quarter
Execution, clearing and distribution fees	`ExecutionAndClearing`	$121.00M	USD	1 Quarter
Execution, clearing and distribution fees	`ExecutionAndClearing`	$121.00M	USD	1 Quarter
Execution, clearing and distribution fees	`ExecutionAndClearing`	$101.00M	USD	1 Quarter
Execution, clearing and distribution fees	`ExecutionAndClearing`	$101.00M	USD	1 Quarter
Employee compensation and benefits	`LaborAndRelatedExpense`	$145.00M	USD	1 Quarter
Employee compensation and benefits	`LaborAndRelatedExpense`	$145.00M	USD	1 Quarter
Employee compensation and benefits	`LaborAndRelatedExpense`	$154.00M	USD	1 Quarter
Employee compensation and benefits	`LaborAndRelatedExpense`	$154.00M	USD	1 Quarter
Occupancy, depreciation and amortization	`OccupancyDepreiationAndAmortization`	$26.00M	USD	1 Quarter
Occupancy, depreciation and amortization	`OccupancyDepreiationAndAmortization`	$26.00M	USD	1 Quarter
Occupancy, depreciation and amortization	`OccupancyDepreiationAndAmortization`	$24.00M	USD	1 Quarter
Occupancy, depreciation and amortization	`OccupancyDepreiationAndAmortization`	$24.00M	USD	1 Quarter
Communications	`Communication`	$10.00M	USD	1 Quarter
Communications	`Communication`	$10.00M	USD	1 Quarter
Communications	`Communication`	$10.00M	USD	1 Quarter
Communications	`Communication`	$10.00M	USD	1 Quarter
General and administrative	`SellingGeneralAndAdministrativeExpense`	$50.00M	USD	1 Quarter
General and administrative	`SellingGeneralAndAdministrativeExpense`	$50.00M	USD	1 Quarter
General and administrative	`SellingGeneralAndAdministrativeExpense`	$62.00M	USD	1 Quarter
General and administrative	`SellingGeneralAndAdministrativeExpense`	$62.00M	USD	1 Quarter
Customer bad debt	`CustomerBadDebt`	$5.00M	USD	1 Quarter
Customer bad debt	`CustomerBadDebt`	$5.00M	USD	1 Quarter
Customer bad debt	`CustomerBadDebt`	$1.00M	USD	1 Quarter
Customer bad debt	`CustomerBadDebt`	$1.00M	USD	1 Quarter
Total non-interest expenses	`NoninterestExpense`	$337.00M	USD	1 Quarter
Total non-interest expenses	`NoninterestExpense`	$337.00M	USD	1 Quarter
Total non-interest expenses	`NoninterestExpense`	$372.00M	USD	1 Quarter
Total non-interest expenses	`NoninterestExpense`	$372.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$866.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$866.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.05B	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.05B	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$91.00M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$91.00M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$71.00M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$71.00M	USD	1 Quarter
Net income	`ProfitLoss`	$964.00M	USD	1 Quarter
Net income	`ProfitLoss`	$964.00M	USD	1 Quarter
Net income	`ProfitLoss`	$795.00M	USD	1 Quarter
Net income	`ProfitLoss`	$795.00M	USD	1 Quarter
Less net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$620.00M	USD	1 Quarter
Less net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$620.00M	USD	1 Quarter
Less net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$751.00M	USD	1 Quarter
Less net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$751.00M	USD	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$175.00M	USD	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$175.00M	USD	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$213.00M	USD	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$213.00M	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.95	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.95	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.63	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.63	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.94	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.94	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.61	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.61	USD	1 Quarter
Weighted Average Number of Shares Outstanding, Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	107.07M	shares	1 Quarter
Weighted Average Number of Shares Outstanding, Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	107.07M	shares	1 Quarter
Weighted Average Number of Shares Outstanding, Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	108.92M	shares	1 Quarter
Weighted Average Number of Shares Outstanding, Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	108.92M	shares	1 Quarter
Weighted Average Number of Shares Outstanding, Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	108.15M	shares	1 Quarter
Weighted Average Number of Shares Outstanding, Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	108.15M	shares	1 Quarter
Weighted Average Number of Shares Outstanding, Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	109.87M	shares	1 Quarter
Weighted Average Number of Shares Outstanding, Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	109.87M	shares	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$175.00M	USD	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$175.00M	USD	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$213.00M	USD	1 Quarter
Net income available for common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$213.00M	USD	1 Quarter
Cumulative translation adjustment, before income taxes	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$-26.00M	USD	1 Quarter
Cumulative translation adjustment, before income taxes	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$-26.00M	USD	1 Quarter
Cumulative translation adjustment, before income taxes	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$28.00M	USD	1 Quarter
Cumulative translation adjustment, before income taxes	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$28.00M	USD	1 Quarter
Income taxes related to items of other comprehensive income	`OtherComprehensiveIncomeLossTaxPortionAttributableToParent1`	-	USD	1 Quarter
Income taxes related to items of other comprehensive income	`OtherComprehensiveIncomeLossTaxPortionAttributableToParent1`	-	USD	1 Quarter
Income taxes related to items of other comprehensive income	`OtherComprehensiveIncomeLossTaxPortionAttributableToParent1`	-	USD	1 Quarter
Income taxes related to items of other comprehensive income	`OtherComprehensiveIncomeLossTaxPortionAttributableToParent1`	-	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$28.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$28.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-26.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-26.00M	USD	1 Quarter
Comprehensive income available for common stockholders	`ComprehensiveIncomeNetOfTax`	$149.00M	USD	1 Quarter
Comprehensive income available for common stockholders	`ComprehensiveIncomeNetOfTax`	$149.00M	USD	1 Quarter
Comprehensive income available for common stockholders	`ComprehensiveIncomeNetOfTax`	$241.00M	USD	1 Quarter
Comprehensive income available for common stockholders	`ComprehensiveIncomeNetOfTax`	$241.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$620.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$620.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$751.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$751.00M	USD	1 Quarter
Other comprehensive income - cumulative translation adjustment	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$-76.00M	USD	1 Quarter
Other comprehensive income - cumulative translation adjustment	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$-76.00M	USD	1 Quarter
Other comprehensive income - cumulative translation adjustment	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$79.00M	USD	1 Quarter
Other comprehensive income - cumulative translation adjustment	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$79.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$544.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$544.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$830.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$830.00M	USD	1 Quarter

Cash Flow Statement 174 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$964.00M	USD	1 Quarter
Net income	`ProfitLoss`	$964.00M	USD	1 Quarter
Net income	`ProfitLoss`	$795.00M	USD	1 Quarter
Net income	`ProfitLoss`	$795.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-1.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-1.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-1.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-1.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$15.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$15.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$17.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$17.00M	USD	1 Quarter
Amortization of right-of-use assets	`OperatingLeaseRightOfUseAssetAmortizationExpense`	$7.00M	USD	1 Quarter
Amortization of right-of-use assets	`OperatingLeaseRightOfUseAssetAmortizationExpense`	$7.00M	USD	1 Quarter
Amortization of right-of-use assets	`OperatingLeaseRightOfUseAssetAmortizationExpense`	$7.00M	USD	1 Quarter
Amortization of right-of-use assets	`OperatingLeaseRightOfUseAssetAmortizationExpense`	$7.00M	USD	1 Quarter
Employee stock plan compensation	`ShareBasedCompensation`	$28.00M	USD	1 Quarter
Employee stock plan compensation	`ShareBasedCompensation`	$28.00M	USD	1 Quarter
Employee stock plan compensation	`ShareBasedCompensation`	$31.00M	USD	1 Quarter
Employee stock plan compensation	`ShareBasedCompensation`	$31.00M	USD	1 Quarter
Unrealized (gains) losses on other investments, net	`UnrealizedChangesOnOtherInvestmentsNet`	$17.00M	USD	1 Quarter
Unrealized (gains) losses on other investments, net	`UnrealizedChangesOnOtherInvestmentsNet`	$17.00M	USD	1 Quarter
Unrealized (gains) losses on other investments, net	`UnrealizedChangesOnOtherInvestmentsNet`	$-8.00M	USD	1 Quarter
Unrealized (gains) losses on other investments, net	`UnrealizedChangesOnOtherInvestmentsNet`	$-8.00M	USD	1 Quarter
Customer bad debt expense	`OtherNoncashIncomeExpense`	$-1.00M	USD	1 Quarter
Customer bad debt expense	`OtherNoncashIncomeExpense`	$-1.00M	USD	1 Quarter
Customer bad debt expense	`OtherNoncashIncomeExpense`	$-5.00M	USD	1 Quarter
Customer bad debt expense	`OtherNoncashIncomeExpense`	$-5.00M	USD	1 Quarter
Shares distributed to customers under IBKR Promotions	`SharesDistributedToCustomersUnderPromotions`	$5.00M	USD	1 Quarter
Shares distributed to customers under IBKR Promotions	`SharesDistributedToCustomersUnderPromotions`	$5.00M	USD	1 Quarter
Shares distributed to customers under IBKR Promotions	`SharesDistributedToCustomersUnderPromotions`	$9.00M	USD	1 Quarter
Shares distributed to customers under IBKR Promotions	`SharesDistributedToCustomersUnderPromotions`	$9.00M	USD	1 Quarter
Securities - segregated for regulatory purposes	`IncreaseDecreaseInMarketableSecuritiesRestricted`	$1.55B	USD	1 Quarter
Securities - segregated for regulatory purposes	`IncreaseDecreaseInMarketableSecuritiesRestricted`	$1.55B	USD	1 Quarter
Securities - segregated for regulatory purposes	`IncreaseDecreaseInMarketableSecuritiesRestricted`	$-6.09B	USD	1 Quarter
Securities - segregated for regulatory purposes	`IncreaseDecreaseInMarketableSecuritiesRestricted`	$-6.09B	USD	1 Quarter
Securities borrowed	`IncreaseDecreaseInSecuritiesBorrowed`	$527.00M	USD	1 Quarter
Securities borrowed	`IncreaseDecreaseInSecuritiesBorrowed`	$527.00M	USD	1 Quarter
Securities borrowed	`IncreaseDecreaseInSecuritiesBorrowed`	$476.00M	USD	1 Quarter
Securities borrowed	`IncreaseDecreaseInSecuritiesBorrowed`	$476.00M	USD	1 Quarter
Securities purchased under agreements to resell	`IncreaseDecreaseInSecuritiesPurchasedUnderAgreementsToResell`	$1.80B	USD	1 Quarter
Securities purchased under agreements to resell	`IncreaseDecreaseInSecuritiesPurchasedUnderAgreementsToResell`	$1.80B	USD	1 Quarter
Securities purchased under agreements to resell	`IncreaseDecreaseInSecuritiesPurchasedUnderAgreementsToResell`	$1.17B	USD	1 Quarter
Securities purchased under agreements to resell	`IncreaseDecreaseInSecuritiesPurchasedUnderAgreementsToResell`	$1.17B	USD	1 Quarter
Financial instruments owned, at fair value	`IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities`	$-376.00M	USD	1 Quarter
Financial instruments owned, at fair value	`IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities`	$-376.00M	USD	1 Quarter
Financial instruments owned, at fair value	`IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities`	$1.48B	USD	1 Quarter
Financial instruments owned, at fair value	`IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities`	$1.48B	USD	1 Quarter
Receivables from customers	`IncreaseDecreaseInReceivablesFromCustomersNet`	$574.00M	USD	1 Quarter
Receivables from customers	`IncreaseDecreaseInReceivablesFromCustomersNet`	$574.00M	USD	1 Quarter
Receivables from customers	`IncreaseDecreaseInReceivablesFromCustomersNet`	$-6.93B	USD	1 Quarter
Receivables from customers	`IncreaseDecreaseInReceivablesFromCustomersNet`	$-6.93B	USD	1 Quarter
Other receivables	`IncreaseDecreaseInOtherReceivables`	$296.00M	USD	1 Quarter
Other receivables	`IncreaseDecreaseInOtherReceivables`	$296.00M	USD	1 Quarter
Other receivables	`IncreaseDecreaseInOtherReceivables`	$103.00M	USD	1 Quarter
Other receivables	`IncreaseDecreaseInOtherReceivables`	$103.00M	USD	1 Quarter
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$35.00M	USD	1 Quarter
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$35.00M	USD	1 Quarter
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$42.00M	USD	1 Quarter
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$42.00M	USD	1 Quarter
Securities loaned	`IncreaseDecreaseInSecuritiesLoanedTransactions`	$2.87B	USD	1 Quarter
Securities loaned	`IncreaseDecreaseInSecuritiesLoanedTransactions`	$2.87B	USD	1 Quarter
Securities loaned	`IncreaseDecreaseInSecuritiesLoanedTransactions`	$646.00M	USD	1 Quarter
Securities loaned	`IncreaseDecreaseInSecuritiesLoanedTransactions`	$646.00M	USD	1 Quarter
Financial instruments sold but not yet purchased, at fair value	`IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased`	$-41.00M	USD	1 Quarter
Financial instruments sold but not yet purchased, at fair value	`IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased`	$-41.00M	USD	1 Quarter
Financial instruments sold but not yet purchased, at fair value	`IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased`	$43.00M	USD	1 Quarter
Financial instruments sold but not yet purchased, at fair value	`IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased`	$43.00M	USD	1 Quarter
Payable to customers	`IncreaseDecreaseInPayablesToCustomers`	$185.00M	USD	1 Quarter
Payable to customers	`IncreaseDecreaseInPayablesToCustomers`	$185.00M	USD	1 Quarter
Payable to customers	`IncreaseDecreaseInPayablesToCustomers`	$5.31B	USD	1 Quarter
Payable to customers	`IncreaseDecreaseInPayablesToCustomers`	$5.31B	USD	1 Quarter
Other payables	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$728.00M	USD	1 Quarter
Other payables	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$728.00M	USD	1 Quarter
Other payables	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$15.00M	USD	1 Quarter
Other payables	`IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities`	$15.00M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.68B	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.68B	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$2.58B	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$2.58B	USD	1 Quarter
Purchases of other investments	`PaymentsToAcquireOtherInvestments`	$1.00M	USD	1 Quarter
Purchases of other investments	`PaymentsToAcquireOtherInvestments`	$1.00M	USD	1 Quarter
Purchases of other investments	`PaymentsToAcquireOtherInvestments`	$10.00M	USD	1 Quarter
Purchases of other investments	`PaymentsToAcquireOtherInvestments`	$10.00M	USD	1 Quarter
Purchase of property, equipment and intangible assets	`PaymentsForProceedsFromProductiveAssets`	$16.00M	USD	1 Quarter
Purchase of property, equipment and intangible assets	`PaymentsForProceedsFromProductiveAssets`	$16.00M	USD	1 Quarter
Purchase of property, equipment and intangible assets	`PaymentsForProceedsFromProductiveAssets`	$12.00M	USD	1 Quarter
Purchase of property, equipment and intangible assets	`PaymentsForProceedsFromProductiveAssets`	$12.00M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-26.00M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-26.00M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-13.00M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-13.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$-2.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$-2.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$-3.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$-3.00M	USD	1 Quarter
Dividends paid to stockholders	`PaymentsOfDividendsCommonStock`	$27.00M	USD	Point-in-time
Dividends paid to stockholders	`PaymentsOfDividendsCommonStock`	$27.00M	USD	Point-in-time
Dividends paid to stockholders	`PaymentsOfDividendsCommonStock`	$27.00M	USD	1 Quarter
Dividends paid to stockholders	`PaymentsOfDividendsCommonStock`	$27.00M	USD	1 Quarter
Dividends paid to stockholders	`PaymentsOfDividendsCommonStock`	$11.00M	USD	1 Quarter
Dividends paid to stockholders	`PaymentsOfDividendsCommonStock`	$11.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$196.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$196.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$123.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$123.00M	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-225.00M	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-225.00M	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-137.00M	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-137.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$107.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$107.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-102.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-102.00M	USD	1 Quarter
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.43B	USD	1 Quarter
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.43B	USD	1 Quarter
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$2.44B	USD	1 Quarter
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$2.44B	USD	1 Quarter
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$42.67B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$42.67B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.59B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.59B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.23B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.23B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.02B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.02B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$42.67B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$42.67B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.59B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.59B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.23B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.23B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.02B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.02B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.06B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.06B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.63B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.63B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.50B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.50B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$36.60B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$36.60B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$29.96B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$29.96B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$39.17B	USD	Point-in-time
Cash segregated for regulatory purposes	`CashReserveDepositRequiredAndMade`	$39.17B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$42.67B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$42.67B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.59B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.59B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.23B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$40.23B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.02B	USD	Point-in-time
Cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$34.02B	USD	Point-in-time
Cash paid for interest	`InterestPaidNet`	$1.01B	USD	1 Quarter
Cash paid for interest	`InterestPaidNet`	$1.01B	USD	1 Quarter
Cash paid for interest	`InterestPaidNet`	$963.00M	USD	1 Quarter
Cash paid for interest	`InterestPaidNet`	$963.00M	USD	1 Quarter
Cash paid for taxes, net	`IncomeTaxesPaidNet`	$40.00M	USD	1 Quarter
Cash paid for taxes, net	`IncomeTaxesPaidNet`	$40.00M	USD	1 Quarter
Cash paid for taxes, net	`IncomeTaxesPaidNet`	$32.00M	USD	1 Quarter
Cash paid for taxes, net	`IncomeTaxesPaidNet`	$32.00M	USD	1 Quarter
Cash paid for amounts included in lease liabilities	`CashPaidForAmountsIncludedInLeaseLiabilities`	$10.00M	USD	1 Quarter
Cash paid for amounts included in lease liabilities	`CashPaidForAmountsIncludedInLeaseLiabilities`	$10.00M	USD	1 Quarter
Cash paid for amounts included in lease liabilities	`CashPaidForAmountsIncludedInLeaseLiabilities`	$12.00M	USD	1 Quarter
Cash paid for amounts included in lease liabilities	`CashPaidForAmountsIncludedInLeaseLiabilities`	$12.00M	USD	1 Quarter
Adjustments to additional paid-in capital for changes in proportionate ownership in IBG LLC	`ConsolidationControllingOwnershipInterestChangesNet`	$1.00M	USD	1 Quarter
Adjustments to additional paid-in capital for changes in proportionate ownership in IBG LLC	`ConsolidationControllingOwnershipInterestChangesNet`	$1.00M	USD	1 Quarter
Adjustments to additional paid-in capital for changes in proportionate ownership in IBG LLC	`ConsolidationControllingOwnershipInterestChangesNet`	$1.00M	USD	1 Quarter
Adjustments to additional paid-in capital for changes in proportionate ownership in IBG LLC	`ConsolidationControllingOwnershipInterestChangesNet`	$1.00M	USD	1 Quarter
Adjustments to noncontrolling interests for changes in proportionate ownership in IBG LLC	`ConsolidationNonControllingOwnershipInterestChangesNet`	$-1.00M	USD	1 Quarter
Adjustments to noncontrolling interests for changes in proportionate ownership in IBG LLC	`ConsolidationNonControllingOwnershipInterestChangesNet`	$-1.00M	USD	1 Quarter
Adjustments to noncontrolling interests for changes in proportionate ownership in IBG LLC	`ConsolidationNonControllingOwnershipInterestChangesNet`	$-1.00M	USD	1 Quarter
Adjustments to noncontrolling interests for changes in proportionate ownership in IBG LLC	`ConsolidationNonControllingOwnershipInterestChangesNet`	$-1.00M	USD	1 Quarter

Stockholders Equity 42 line items

Line Item	Tag	Value	Unit	Period
Dividend per share	`CommonStockDividendsPerShareCashPaid`	$0.10	USD	1 Quarter
Dividend per share	`CommonStockDividendsPerShareCashPaid`	$0.10	USD	1 Quarter
Dividend per share	`CommonStockDividendsPerShareCashPaid`	$0.25	USD	1 Quarter
Dividend per share	`CommonStockDividendsPerShareCashPaid`	$0.25	USD	1 Quarter
Dividend per share	`CommonStockDividendsPerShareCashPaid`	$0.25	USD	Point-in-time
Dividend per share	`CommonStockDividendsPerShareCashPaid`	$0.25	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.07B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.07B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.66B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.66B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.60B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.60B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.48B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.48B	USD	Point-in-time
Net distribution of common stocks - IBKR Promotion	`NetDistributionOfCommonStockPromotion`	$5.00M	USD	1 Quarter
Net distribution of common stocks - IBKR Promotion	`NetDistributionOfCommonStockPromotion`	$5.00M	USD	1 Quarter
Net distribution of common stocks - IBKR Promotion	`NetDistributionOfCommonStockPromotion`	$7.00M	USD	1 Quarter
Net distribution of common stocks - IBKR Promotion	`NetDistributionOfCommonStockPromotion`	$7.00M	USD	1 Quarter
Compensation for stock grants vesting in the future	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition`	$28.00M	USD	1 Quarter
Compensation for stock grants vesting in the future	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition`	$28.00M	USD	1 Quarter
Compensation for stock grants vesting in the future	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition`	$31.00M	USD	1 Quarter
Compensation for stock grants vesting in the future	`AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition`	$31.00M	USD	1 Quarter
Dividends paid to stockholders	`DividendsCommonStock`	$11.00M	USD	1 Quarter
Dividends paid to stockholders	`DividendsCommonStock`	$11.00M	USD	1 Quarter
Dividends paid to stockholders	`DividendsCommonStock`	$27.00M	USD	1 Quarter
Dividends paid to stockholders	`DividendsCommonStock`	$27.00M	USD	1 Quarter
Distributions from IBG LLC to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$196.00M	USD	1 Quarter
Distributions from IBG LLC to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$196.00M	USD	1 Quarter
Distributions from IBG LLC to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$123.00M	USD	1 Quarter
Distributions from IBG LLC to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$123.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$1.07B	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$1.07B	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$693.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$693.00M	USD	1 Quarter
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.07B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.07B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.66B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.66B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.60B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.60B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.48B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.48B	USD	Point-in-time

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.