10-K Filing

SEI INVESTMENTS CO CIK: 350894 FY 2014

Filing Information

Form Type	10-K
Accession Number	`0000350894-15-000009`
Period End Date	20141231
Filing Date	20150223
Fiscal Year	2014
Fiscal Period	FY
XBRL Instance	seic-20141231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 87 Income Statement 138 Cash Flow Statement 131 Stockholders Equity 39 Comprehensive Income 30

Balance Sheet 87 line items

Line Item	Tag	Value	Unit	Period
Receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$784.00K	USD	Point-in-time
Receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$651.00K	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$420.99M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$578.27M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$667.45M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$452.25M	USD	Point-in-time
Property and Equipment, accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$241.29M	USD	Point-in-time
Property and Equipment, accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$220.06M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$5.50M	USD	Point-in-time
Capitalized Software, accumulated amortization	`CapitalizedComputerSoftwareAccumulatedAmortization`	$180.06M	USD	Point-in-time
Capitalized Software, accumulated amortization	`CapitalizedComputerSoftwareAccumulatedAmortization`	$218.51M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$5.80M	USD	Point-in-time
Receivables from regulated investment companies	`DueFromOtherRelatedPartiesCurrent`	$39.36M	USD	Point-in-time
Receivables from regulated investment companies	`DueFromOtherRelatedPartiesCurrent`	$48.39M	USD	Point-in-time
Series Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$0.05	USD	Point-in-time
Series Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$0.05	USD	Point-in-time
Receivables, net of allowance for doubtful accounts of $784 and $651	`ReceivablesNetCurrent`	$186.66M	USD	Point-in-time
Receivables, net of allowance for doubtful accounts of $784 and $651	`ReceivablesNetCurrent`	$194.42M	USD	Point-in-time
Series Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	50,000.00	shares	Point-in-time
Securities owned	`FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue`	$21.13M	USD	Point-in-time
Securities owned	`FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue`	$21.18M	USD	Point-in-time
Series Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	50,000.00	shares	Point-in-time
Other current assets	`OtherAssetsCurrent`	$18.19M	USD	Point-in-time
Series Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Other current assets	`OtherAssetsCurrent`	$16.17M	USD	Point-in-time
Series Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Series Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Series Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Total Current Assets	`AssetsCurrent`	$955.43M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$847.10M	USD	Point-in-time
Property and Equipment, net of accumulated depreciation of $241,295 and $220,064	`PropertyPlantAndEquipmentNet`	$119.00M	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Property and Equipment, net of accumulated depreciation of $241,295 and $220,064	`PropertyPlantAndEquipmentNet`	$125.53M	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	750.00M	shares	Point-in-time
Capitalized Software, net of accumulated amortization of $218,514 and $180,062	`CapitalizedComputerSoftwareNet`	$312.62M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	750.00M	shares	Point-in-time
Capitalized Software, net of accumulated amortization of $218,514 and $180,062	`CapitalizedComputerSoftwareNet`	$309.04M	USD	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	169.24M	shares	Point-in-time
Investments Available for Sale	`AvailableForSaleSecuritiesNoncurrent`	$83.32M	USD	Point-in-time
Investments Available for Sale	`AvailableForSaleSecuritiesNoncurrent`	$77.61M	USD	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	166.69M	shares	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	166.67M	shares	Point-in-time
Investments in Affiliated Funds, at fair value	`OtherMarketableSecuritiesNoncurrent`	$4.85M	USD	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	169.24M	shares	Point-in-time
Investments in Affiliated Funds, at fair value	`OtherMarketableSecuritiesNoncurrent`	$4.52M	USD	Point-in-time
Investment in Unconsolidated Affiliates	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$61.37M	USD	Point-in-time
Investment in Unconsolidated Affiliates	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$54.29M	USD	Point-in-time
Other Assets, net	`OtherAssetsNoncurrent`	$10.92M	USD	Point-in-time
Other Assets, net	`OtherAssetsNoncurrent`	$16.45M	USD	Point-in-time
Total Assets	`Assets`	$1.54B	USD	Point-in-time
Total Assets	`Assets`	$1.44B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$16.23M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$10.59M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$188.12M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$207.43M	USD	Point-in-time
Deferred income taxes, net	`DeferredTaxLiabilitiesCurrent`	$1.41M	USD	Point-in-time
Deferred income taxes, net	`DeferredTaxLiabilitiesCurrent`	$1.65M	USD	Point-in-time
Deferred revenue	`DeferredRevenueCurrent`	$1.75M	USD	Point-in-time
Deferred revenue	`DeferredRevenueCurrent`	$1.98M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$221.18M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$207.99M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$66.57M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$63.76M	USD	Point-in-time
Other Long-term Liabilities	`LiabilityForUncertainTaxPositionsNoncurrent`	$10.33M	USD	Point-in-time
Other Long-term Liabilities	`LiabilityForUncertainTaxPositionsNoncurrent`	$8.61M	USD	Point-in-time
Total Liabilities	`Liabilities`	$295.26M	USD	Point-in-time
Total Liabilities	`Liabilities`	$283.17M	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Series Preferred stock, $.05 par value, 50 shares authorized; no shares issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Series Preferred stock, $.05 par value, 50 shares authorized; no shares issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $.01 par value, 750,000 shares authorized; 166,688 and 169,242 shares issued and outstanding	`CommonStockValue`	$1.67M	USD	Point-in-time
Common stock, $.01 par value, 750,000 shares authorized; 166,688 and 169,242 shares issued and outstanding	`CommonStockValue`	$1.69M	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$721.22M	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$834.62M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$431.60M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$420.23M	USD	Point-in-time
Accumulated other comprehensive (loss) income, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-8.89M	USD	Point-in-time
Accumulated other comprehensive (loss) income, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.49M	USD	Point-in-time
Accumulated other comprehensive (loss) income, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$6.24M	USD	Point-in-time
Accumulated other comprehensive (loss) income, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.90M	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.25B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.06B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.16B	USD	Point-in-time
Total Liabilities and Equity	`LiabilitiesAndStockholdersEquity`	$1.54B	USD	Point-in-time
Total Liabilities and Equity	`LiabilitiesAndStockholdersEquity`	$1.44B	USD	Point-in-time

Income Statement 138 line items

Line Item	Tag	Value	Unit	Period
Asset management, administration and distribution fees	`InvestmentAdvisoryManagementAndAdministrativeFees`	$948.93M	USD	Annual
Asset management, administration and distribution fees	`InvestmentAdvisoryManagementAndAdministrativeFees`	$831.72M	USD	Annual
Asset management, administration and distribution fees	`InvestmentAdvisoryManagementAndAdministrativeFees`	$723.63M	USD	Annual
Information processing and software servicing fees	`InformationProcessingAndSoftwareServiceFees`	$261.69M	USD	Annual
Information processing and software servicing fees	`InformationProcessingAndSoftwareServiceFees`	$285.46M	USD	Annual
Information processing and software servicing fees	`InformationProcessingAndSoftwareServiceFees`	$236.19M	USD	Annual
Transaction-based and trade execution fees	`TransactionBasedAndTradeExecutionFees`	$31.61M	USD	Annual
Transaction-based and trade execution fees	`TransactionBasedAndTradeExecutionFees`	$32.70M	USD	Annual
Transaction-based and trade execution fees	`TransactionBasedAndTradeExecutionFees`	$32.72M	USD	Annual
Total revenues	`Revenues`	$322.76M	USD	1 Quarter
Total revenues	`Revenues`	$299.02M	USD	1 Quarter
Total revenues	`Revenues`	$280.65M	USD	1 Quarter
Total revenues	`Revenues`	$271.88M	USD	1 Quarter
Total revenues	`Revenues`	$322.05M	USD	1 Quarter
Total revenues	`Revenues`	$1.13B	USD	Annual
Total revenues	`Revenues`	$274.57M	USD	1 Quarter
Total revenues	`Revenues`	$302.39M	USD	1 Quarter
Total revenues	`Revenues`	$992.52M	USD	Annual
Total revenues	`Revenues`	$1.27B	USD	Annual
Total revenues	`Revenues`	$318.81M	USD	1 Quarter
Subadvisory, distribution and other asset management costs	`SubadvisoryDistributionandOtherAssetManagementCosts`	$121.99M	USD	Annual
Subadvisory, distribution and other asset management costs	`SubadvisoryDistributionandOtherAssetManagementCosts`	$106.05M	USD	Annual
Subadvisory, distribution and other asset management costs	`SubadvisoryDistributionandOtherAssetManagementCosts`	$149.79M	USD	Annual
Software royalties and other information processing costs	`SoftwareRoyaltiesandOtherInformationProcessingCosts`	$26.72M	USD	Annual
Software royalties and other information processing costs	`SoftwareRoyaltiesandOtherInformationProcessingCosts`	$33.52M	USD	Annual
Software royalties and other information processing costs	`SoftwareRoyaltiesandOtherInformationProcessingCosts`	$31.25M	USD	Annual
Brokerage commissions	`BrokerageCommissions`	$23.89M	USD	Annual
Brokerage commissions	`BrokerageCommissions`	$23.00M	USD	Annual
Brokerage commissions	`BrokerageCommissions`	$24.65M	USD	Annual
Compensation, benefits and other personnel	`CompensationBenefitsandOtherPersonnel`	$376.87M	USD	Annual
Compensation, benefits and other personnel	`CompensationBenefitsandOtherPersonnel`	$335.30M	USD	Annual
Compensation, benefits and other personnel	`CompensationBenefitsandOtherPersonnel`	$357.45M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$13.46M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$15.74M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$37.87M	USD	Annual
Consulting, outsourcing and professional fees	`ProfessionalFees`	$131.40M	USD	Annual
Consulting, outsourcing and professional fees	`ProfessionalFees`	$109.83M	USD	Annual
Consulting, outsourcing and professional fees	`ProfessionalFees`	$136.82M	USD	Annual
Data processing and computer related	`InformationTechnologyAndDataProcessing`	$46.62M	USD	Annual
Data processing and computer related	`InformationTechnologyAndDataProcessing`	$52.51M	USD	Annual
Data processing and computer related	`InformationTechnologyAndDataProcessing`	$51.40M	USD	Annual
Facilities, supplies and other costs	`OccupancyNet`	$66.11M	USD	Annual
Facilities, supplies and other costs	`OccupancyNet`	$64.61M	USD	Annual
Facilities, supplies and other costs	`OccupancyNet`	$60.98M	USD	Annual
Amortization	`AmortizationOfIntangibleAssets`	$33.26M	USD	Annual
Amortization	`AmortizationOfIntangibleAssets`	$38.68M	USD	Annual
Amortization	`AmortizationOfIntangibleAssets`	$34.60M	USD	Annual
Depreciation	`DepreciationNonproduction`	$22.50M	USD	Annual
Depreciation	`DepreciationNonproduction`	$22.45M	USD	Annual
Depreciation	`DepreciationNonproduction`	$22.59M	USD	Annual
Total expenses	`CostsAndExpenses`	$913.22M	USD	Annual
Total expenses	`CostsAndExpenses`	$780.96M	USD	Annual
Total expenses	`CostsAndExpenses`	$877.72M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$248.41M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$211.57M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$352.78M	USD	Annual
Net gain from investments	`GainLossOnInvestments`	$14.07M	USD	Annual
Net gain from investments	`GainLossOnInvestments`	$659.00K	USD	Annual
Net gain from investments	`GainLossOnInvestments`	$614.00K	USD	Annual
Interest and dividend income	`InvestmentIncomeInterestAndDividend`	$3.25M	USD	Annual
Interest and dividend income	`InvestmentIncomeInterestAndDividend`	$5.70M	USD	Annual
Interest and dividend income	`InvestmentIncomeInterestAndDividend`	$3.35M	USD	Annual
Interest expense	`InterestExpense`	$535.00K	USD	Annual
Interest expense	`InterestExpense`	$458.00K	USD	Annual
Interest expense	`InterestExpense`	$504.00K	USD	Annual
Equity in earnings of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$98.67M	USD	Annual
Equity in earnings of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$118.08M	USD	Annual
Equity in earnings of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$127.79M	USD	Annual
Gain on sale of subsidiary	`GainOrLossOnSaleOfStockInSubsidiary`	$5.58M	USD	Annual
Gain on sale of subsidiary	`GainOrLossOnSaleOfStockInSubsidiary`	$22.11M	USD	Annual
Gain on sale of subsidiary	`GainOrLossOnSaleOfStockInSubsidiary`	-	USD	Annual
Other income	`OtherNonoperatingIncomeExpense`	-	USD	Annual
Other income	`OtherNonoperatingIncomeExpense`	$43.43M	USD	Annual
Other income	`OtherNonoperatingIncomeExpense`	-	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$101.06M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$115.53M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$116.67M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$93.99M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$128.62M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$129.39M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$489.66M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$329.50M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$110.96M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$128.85M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$435.40M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$146.92M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$170.95M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$121.46M	USD	Annual
Net income	`ProfitLoss`	$208.03M	USD	Annual
Net income	`ProfitLoss`	$288.47M	USD	Annual
Net income	`ProfitLoss`	$318.71M	USD	Annual
Less: Net income attributable to the noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Less: Net income attributable to the noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$350.00K	USD	Annual
Less: Net income attributable to the noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.19M	USD	Annual
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$83.49M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$82.81M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$77.10M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$318.71M	USD	Annual
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$65.52M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$74.82M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$71.92M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$67.19M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$288.12M	USD	Annual
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$83.98M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$206.85M	USD	Annual
Basic earnings per common share	`EarningsPerShareBasic`	$0.49	USD	1 Quarter
Basic earnings per common share	`EarningsPerShareBasic`	$0.48	USD	1 Quarter
Basic earnings per common share	`EarningsPerShareBasic`	$0.44	USD	1 Quarter
Basic earnings per common share	`EarningsPerShareBasic`	$1.19	USD	Annual
Basic earnings per common share	`EarningsPerShareBasic`	$0.46	USD	1 Quarter
Basic earnings per common share	`EarningsPerShareBasic`	$1.89	USD	Annual
Basic earnings per common share	`EarningsPerShareBasic`	$0.50	USD	1 Quarter
Basic earnings per common share	`EarningsPerShareBasic`	$0.39	USD	1 Quarter
Basic earnings per common share	`EarningsPerShareBasic`	$0.39	USD	1 Quarter
Basic earnings per common share	`EarningsPerShareBasic`	$1.68	USD	Annual
Basic earnings per common share	`EarningsPerShareBasic`	$0.42	USD	1 Quarter
Shares used to compute basic earnings per share	`WeightedAverageNumberOfSharesIssuedBasic`	174.29M	shares	Annual
Shares used to compute basic earnings per share	`WeightedAverageNumberOfSharesIssuedBasic`	168.25M	shares	Annual
Shares used to compute basic earnings per share	`WeightedAverageNumberOfSharesIssuedBasic`	171.56M	shares	Annual
Diluted earnings per common share	`EarningsPerShareDiluted`	$1.64	USD	Annual
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.41	USD	1 Quarter
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.43	USD	1 Quarter
Diluted earnings per common share	`EarningsPerShareDiluted`	$1.18	USD	Annual
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.45	USD	1 Quarter
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.48	USD	1 Quarter
Diluted earnings per common share	`EarningsPerShareDiluted`	$1.85	USD	Annual
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.37	USD	1 Quarter
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.38	USD	1 Quarter
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.49	USD	1 Quarter
Diluted earnings per common share	`EarningsPerShareDiluted`	$0.47	USD	1 Quarter
Shares used to compute diluted earnings per share	`WeightedAverageNumberOfDilutedSharesOutstanding`	175.72M	shares	Annual
Shares used to compute diluted earnings per share	`WeightedAverageNumberOfDilutedSharesOutstanding`	172.56M	shares	Annual
Shares used to compute diluted earnings per share	`WeightedAverageNumberOfDilutedSharesOutstanding`	175.87M	shares	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.22	USD	Point-in-time
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.42	USD	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.46	USD	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.24	USD	Point-in-time
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.63	USD	Annual

Cash Flow Statement 131 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$208.03M	USD	Annual
Net income	`ProfitLoss`	$288.47M	USD	Annual
Net income	`ProfitLoss`	$318.71M	USD	Annual
Depreciation	`DepreciationNonproduction`	$22.50M	USD	Annual
Depreciation	`DepreciationNonproduction`	$22.45M	USD	Annual
Depreciation	`DepreciationNonproduction`	$22.59M	USD	Annual
Amortization	`AmortizationOfIntangibleAssets`	$33.26M	USD	Annual
Amortization	`AmortizationOfIntangibleAssets`	$38.68M	USD	Annual
Amortization	`AmortizationOfIntangibleAssets`	$34.60M	USD	Annual
Equity in earnings of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$98.67M	USD	Annual
Equity in earnings of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$118.08M	USD	Annual
Equity in earnings of unconsolidated affiliates	`IncomeLossFromEquityMethodInvestments`	$127.79M	USD	Annual
Distributions received from unconsolidated affiliate	`EquityMethodInvestmentDividendsOrDistributions`	$92.23M	USD	Annual
Distributions received from unconsolidated affiliate	`EquityMethodInvestmentDividendsOrDistributions`	$137.87M	USD	Annual
Distributions received from unconsolidated affiliate	`EquityMethodInvestmentDividendsOrDistributions`	$137.10M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$13.46M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$15.74M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$37.87M	USD	Annual
Provision for losses on receivables	`ProvisionForDoubtfulAccounts`	$-119.00K	USD	Annual
Provision for losses on receivables	`ProvisionForDoubtfulAccounts`	$133.00K	USD	Annual
Provision for losses on receivables	`ProvisionForDoubtfulAccounts`	$-154.00K	USD	Annual
Deferred income tax expense	`IncreaseDecreaseInDeferredIncomeTaxes`	$3.33M	USD	Annual
Deferred income tax expense	`IncreaseDecreaseInDeferredIncomeTaxes`	$1.19M	USD	Annual
Deferred income tax expense	`IncreaseDecreaseInDeferredIncomeTaxes`	$22.82M	USD	Annual
Gain from sale of SEI AK	`GainOrLossOnSaleOfStockInSubsidiary`	$5.58M	USD	Annual
Gain from sale of SEI AK	`GainOrLossOnSaleOfStockInSubsidiary`	$22.11M	USD	Annual
Gain from sale of SEI AK	`GainOrLossOnSaleOfStockInSubsidiary`	-	USD	Annual
Net realized gains from investments	`GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments`	$614.00K	USD	Annual
Net realized gains from investments	`GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments`	$14.07M	USD	Annual
Net realized gains from investments	`GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments`	$659.00K	USD	Annual
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$1.57M	USD	Annual
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-1.24M	USD	Annual
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$1.72M	USD	Annual
Change in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$5.89M	USD	Annual
Change in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-600.00K	USD	Annual
Change in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$619.00K	USD	Annual
Other	`OtherNoncashIncomeExpense`	$2.44M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-6.68M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$3.97M	USD	Annual
Decrease (increase) in Restricted cash for broker-dealer operations	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	-	USD	Annual
Decrease (increase) in Restricted cash for broker-dealer operations	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	-	USD	Annual
Decrease (increase) in Restricted cash for broker-dealer operations	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	$-500.00K	USD	Annual
Decrease (increase) in Receivables from regulated investment companies	`IncreaseDecreaseInOtherReceivables`	$9.03M	USD	Annual
Decrease (increase) in Receivables from regulated investment companies	`IncreaseDecreaseInOtherReceivables`	$5.28M	USD	Annual
Decrease (increase) in Receivables from regulated investment companies	`IncreaseDecreaseInOtherReceivables`	$8.28M	USD	Annual
Decrease (increase) in Receivables	`IncreaseDecreaseInReceivables`	$30.85M	USD	Annual
Decrease (increase) in Receivables	`IncreaseDecreaseInReceivables`	$17.51M	USD	Annual
Decrease (increase) in Receivables	`IncreaseDecreaseInReceivables`	$7.89M	USD	Annual
Decrease (increase) in Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$282.00K	USD	Annual
Decrease (increase) in Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$2.03M	USD	Annual
Decrease (increase) in Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-1.97M	USD	Annual
Increase (decrease) in Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-6.28M	USD	Annual
Increase (decrease) in Accounts payable	`IncreaseDecreaseInAccountsPayable`	$9.25M	USD	Annual
Increase (decrease) in Accounts payable	`IncreaseDecreaseInAccountsPayable`	$5.00M	USD	Annual
Increase (decrease) in Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$21.63M	USD	Annual
Increase (decrease) in Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$15.10M	USD	Annual
Increase (decrease) in Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$12.87M	USD	Annual
Increase (decrease) in Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$-475.00K	USD	Annual
Increase (decrease) in Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$422.00K	USD	Annual
Increase (decrease) in Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$-228.00K	USD	Annual
Total adjustments	`AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities`	$56.09M	USD	Annual
Total adjustments	`AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities`	$49.46M	USD	Annual
Total adjustments	`AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities`	$62.75M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$257.49M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$374.80M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$351.22M	USD	Annual
Additions to restricted cash	`IncreaseDecreaseInRestrictedCashAndInvestments`	-	USD	Annual
Additions to restricted cash	`IncreaseDecreaseInRestrictedCashAndInvestments`	-	USD	Annual
Additions to restricted cash	`IncreaseDecreaseInRestrictedCashAndInvestments`	$301.00K	USD	Annual
Additions to property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$28.47M	USD	Annual
Additions to property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$23.07M	USD	Annual
Additions to property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$16.35M	USD	Annual
Additions to capitalized software	`PaymentsForSoftware`	$34.88M	USD	Annual
Additions to capitalized software	`PaymentsForSoftware`	$39.50M	USD	Annual
Additions to capitalized software	`PaymentsForSoftware`	$31.00M	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireMarketableSecurities`	$33.66M	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireMarketableSecurities`	$56.75M	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireMarketableSecurities`	$57.56M	USD	Annual
Prepayments and maturities of marketable securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$38.97M	USD	Annual
Prepayments and maturities of marketable securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$53.35M	USD	Annual
Prepayments and maturities of marketable securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$40.26M	USD	Annual
Sales of marketable securities	`SaleOfMarketableSecurities`	$54.83M	USD	Annual
Sales of marketable securities	`SaleOfMarketableSecurities`	$24.46M	USD	Annual
Sales of marketable securities	`SaleOfMarketableSecurities`	$7.32M	USD	Annual
Purchases of other investments	`PaymentsForProceedsFromOtherInvestingActivities`	$2.00M	USD	Annual
Purchases of other investments	`PaymentsForProceedsFromOtherInvestingActivities`	$3.82M	USD	Annual
Purchases of other investments	`PaymentsForProceedsFromOtherInvestingActivities`	$2.60M	USD	Annual
Sale of subsidiary, net of cash transferred	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	$5.58M	USD	Annual
Sale of subsidiary, net of cash transferred	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	-	USD	Annual
Sale of subsidiary, net of cash transferred	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	$6.03M	USD	Annual
Net cash (used in) provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-53.38M	USD	Annual
Net cash (used in) provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$16.63M	USD	Annual
Net cash (used in) provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-62.41M	USD	Annual
Purchase and retirement of common stock	`PaymentsForRepurchaseOfCommonStock`	$157.54M	USD	Annual
Purchase and retirement of common stock	`PaymentsForRepurchaseOfCommonStock`	$206.58M	USD	Annual
Purchase and retirement of common stock	`PaymentsForRepurchaseOfCommonStock`	$275.79M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$104.90M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$49.44M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$66.37M	USD	Annual
Tax benefit on stock options exercised	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$583.00K	USD	Annual
Tax benefit on stock options exercised	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$20.43M	USD	Annual
Tax benefit on stock options exercised	`ExcessTaxBenefitFromShareBasedCompensationFinancingActivities`	$11.82M	USD	Annual
Payment of dividends	`PaymentsOfDividends`	$74.29M	USD	Annual
Payment of dividends	`PaymentsOfDividends`	$34.40M	USD	Annual
Payment of dividends	`PaymentsOfDividends`	$135.34M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-242.86M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-224.75M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-162.78M	USD	Annual
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashAndCashEquivalents`	$-7.50M	USD	Annual
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashAndCashEquivalents`	-	USD	Annual
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashAndCashEquivalents`	-	USD	Annual
Net increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$31.26M	USD	Annual
Net increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$89.17M	USD	Annual
Net increase in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$126.03M	USD	Annual
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$420.99M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$578.27M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$667.45M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$452.25M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$420.99M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$578.27M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$667.45M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashAndCashEquivalentsAtCarryingValue`	$452.25M	USD	Point-in-time
Interest paid	`InterestPaid`	$458.00K	USD	Annual
Interest paid	`InterestPaid`	$458.00K	USD	Annual
Interest paid	`InterestPaid`	$367.00K	USD	Annual
Income taxes paid	`IncomeTaxesPaid`	$163.83M	USD	Annual
Income taxes paid	`IncomeTaxesPaid`	$151.25M	USD	Annual
Income taxes paid	`IncomeTaxesPaid`	$113.16M	USD	Annual
Dividends declared but not paid	`DividendsPayableCurrentAndNoncurrent`	$37.31M	USD	Point-in-time
Dividends declared but not paid	`DividendsPayableCurrentAndNoncurrent`	-	USD	Point-in-time
Dividends declared but not paid	`DividendsPayableCurrentAndNoncurrent`	$40.18M	USD	Point-in-time

Stockholders Equity 39 line items

Line Item	Tag	Value	Unit	Period
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.22	USD	Point-in-time
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.42	USD	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.46	USD	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.24	USD	Point-in-time
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.63	USD	Annual
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.25B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.06B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.16B	USD	Point-in-time
Beginning balance, shares	`CommonStockSharesIssued`	169.24M	shares	Point-in-time
Beginning balance, shares	`CommonStockSharesIssued`	166.69M	shares	Point-in-time
Issuance of common stock upon exercise of stock options, shares	`StockIssuedDuringPeriodSharesStockOptionsExercised`	5.26M	shares	Annual
Issuance of common stock upon exercise of stock options, shares	`StockIssuedDuringPeriodSharesStockOptionsExercised`	3.14M	shares	Annual
Issuance of common stock upon exercise of stock options, shares	`StockIssuedDuringPeriodSharesStockOptionsExercised`	3.73M	shares	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$13.46M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$15.74M	USD	Annual
Stock-based compensation	`AllocatedShareBasedCompensationExpense`	$37.87M	USD	Annual
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$83.49M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$82.81M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$77.10M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$318.71M	USD	Annual
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$65.52M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$74.82M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$71.92M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$67.19M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$288.12M	USD	Annual
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$83.98M	USD	1 Quarter
Net income attributable to SEI Investments Company	`NetIncomeLoss`	$206.85M	USD	Annual
Dividends declared ($0.46, $0.42 and $0.63 per share)	`DividendsCommonStock`	$71.67M	USD	Annual
Dividends declared ($0.46, $0.42 and $0.63 per share)	`DividendsCommonStock`	$108.82M	USD	Annual
Dividends declared ($0.46, $0.42 and $0.63 per share)	`DividendsCommonStock`	$55.15M	USD	Point-in-time
Dividends declared ($0.46, $0.42 and $0.63 per share)	`DividendsCommonStock`	$77.16M	USD	Annual
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$-5.20M	USD	Annual
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$6.16M	USD	Annual
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$-10.38M	USD	Annual
Total Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.25B	USD	Point-in-time
Total Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.06B	USD	Point-in-time
Total Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.16B	USD	Point-in-time
Ending balance, shares	`CommonStockSharesIssued`	169.24M	shares	Point-in-time
Ending balance, shares	`CommonStockSharesIssued`	166.69M	shares	Point-in-time

Comprehensive Income 30 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$208.03M	USD	Annual
Unrealized holding gains (losses) during the period, income tax (benefit) expense	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$86.00K	USD	Annual
Net income	`ProfitLoss`	$288.47M	USD	Annual
Unrealized holding gains (losses) during the period, income tax (benefit) expense	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-592.00K	USD	Annual
Unrealized holding gains (losses) during the period, income tax (benefit) expense	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-954.00K	USD	Annual
Net income	`ProfitLoss`	$318.71M	USD	Annual
Reclassification adjustment for gains realized in net income, income tax expense	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$319.00K	USD	Annual
Reclassification adjustment for gains realized in net income, income tax expense	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$50.00K	USD	Annual
Reclassification adjustment for gains realized in net income, income tax expense	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$170.00K	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-10.19M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$5.90M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-3.76M	USD	Annual
Unrealized holding gains (losses) during the period, net of income taxes of $(592), $(954) and $86	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$441.00K	USD	Annual
Unrealized holding gains (losses) during the period, net of income taxes of $(592), $(954) and $86	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$341.00K	USD	Annual
Unrealized holding gains (losses) during the period, net of income taxes of $(592), $(954) and $86	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-1.15M	USD	Annual
Less: reclassification adjustment for gains realized in net income, net of income taxes of $319, $170 and $50	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$294.00K	USD	Annual
Less: reclassification adjustment for gains realized in net income, net of income taxes of $319, $170 and $50	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$86.00K	USD	Annual
Less: reclassification adjustment for gains realized in net income, net of income taxes of $319, $170 and $50	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$634.00K	USD	Annual
Total other comprehensive (loss) gain, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-5.20M	USD	Annual
Total other comprehensive (loss) gain, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$6.16M	USD	Annual
Total other comprehensive (loss) gain, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-10.38M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$214.19M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$308.33M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$283.27M	USD	Annual
Less: Comprehensive loss (income) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	Annual
Less: Comprehensive loss (income) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-101.00K	USD	Annual
Less: Comprehensive loss (income) attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$3.01M	USD	Annual
Comprehensive income attributable to SEI Investments	`ComprehensiveIncomeNetOfTax`	$308.33M	USD	Annual
Comprehensive income attributable to SEI Investments	`ComprehensiveIncomeNetOfTax`	$283.37M	USD	Annual
Comprehensive income attributable to SEI Investments	`ComprehensiveIncomeNetOfTax`	$211.19M	USD	Annual

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