10-Q Filing

INTERDIGITAL, INC. CIK: 1405495 Q3 2021

Filing Information

Form Type	10-Q
Accession Number	`0001405495-21-000047`
Period End Date	20210930
Filing Date	20211104
Fiscal Year	2021
Fiscal Period	Q3
XBRL Instance	idcc-20210930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 94 Income Statement 80 Cash Flow Statement 67 Stockholders Equity 133 Comprehensive Income 24

Balance Sheet 94 line items

Line Item	Tag	Value	Unit	Period
Accounts receivable, less allowances of $322 and $0	`AllowanceForDoubtfulAccountsReceivable`	-	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$746.56M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$467.61M	USD	Point-in-time
Accounts receivable, less allowances of $322 and $0	`AllowanceForDoubtfulAccountsReceivable`	$322.00K	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$473.47M	USD	Point-in-time
Short-term investments	`ShortTermInvestments`	$453.17M	USD	Point-in-time
Short-term investments	`ShortTermInvestments`	$433.20M	USD	Point-in-time
Accounts receivable, less allowances of $322 and $0	`AccountsReceivableNet`	$16.01M	USD	Point-in-time
Preferred stock, par value (in USD per share)	`PreferredStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Preferred stock, par value (in USD per share)	`PreferredStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Accounts receivable, less allowances of $322 and $0	`AccountsReceivableNet`	$141.66M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$80.30M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$59.89M	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	14.40M	shares	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	14.40M	shares	Point-in-time
Total current assets	`AssetsCurrent`	$1.00B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.12B	USD	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$14.18M	USD	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$16.63M	USD	Point-in-time
Preferred stock, shares outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred stock, shares outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
PATENTS, NET	`FiniteLivedPatentsNet`	$371.86M	USD	Point-in-time
Common stock, par value (in USD per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
PATENTS, NET	`FiniteLivedPatentsNet`	$418.34M	USD	Point-in-time
Common stock, par value (in USD per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
DEFERRED TAX ASSETS	`DeferredIncomeTaxAssetsNet`	$94.85M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
DEFERRED TAX ASSETS	`DeferredIncomeTaxAssetsNet`	$80.38M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	71.39M	shares	Point-in-time
OTHER NON-CURRENT ASSETS, NET	`OtherAssetsNoncurrent`	$96.96M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	71.62M	shares	Point-in-time
OTHER NON-CURRENT ASSETS, NET	`OtherAssetsNoncurrent`	$98.37M	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$577.85M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	30.69M	shares	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$613.73M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	30.82M	shares	Point-in-time
Treasury stock, shares of common held at cost (in shares)	`TreasuryStockCommonShares`	40.93M	shares	Point-in-time
TOTAL ASSETS	`Assets`	$1.70B	USD	Point-in-time
Treasury stock, shares of common held at cost (in shares)	`TreasuryStockCommonShares`	40.57M	shares	Point-in-time
TOTAL ASSETS	`Assets`	$1.62B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrentAndNoncurrent`	$10.98M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrentAndNoncurrent`	$9.55M	USD	Point-in-time
Accrued compensation and related expenses	`EmployeeRelatedLiabilitiesCurrent`	$33.84M	USD	Point-in-time
Accrued compensation and related expenses	`EmployeeRelatedLiabilitiesCurrent`	$32.41M	USD	Point-in-time
Deferred revenue	`ContractWithCustomerLiabilityCurrent`	$219.94M	USD	Point-in-time
Deferred revenue	`ContractWithCustomerLiabilityCurrent`	$325.38M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$10.74M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$10.79M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$10.78M	USD	Point-in-time
Other accrued expenses	`OtherAccruedLiabilitiesCurrent`	$21.65M	USD	Point-in-time
Other accrued expenses	`OtherAccruedLiabilitiesCurrent`	$38.52M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$418.03M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$295.76M	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$367.99M	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$421.42M	USD	Point-in-time
LONG-TERM DEFERRED REVENUE	`ContractWithCustomerLiabilityNoncurrent`	$108.07M	USD	Point-in-time
LONG-TERM DEFERRED REVENUE	`ContractWithCustomerLiabilityNoncurrent`	$66.67M	USD	Point-in-time
OTHER LONG-TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$47.89M	USD	Point-in-time
OTHER LONG-TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$59.17M	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$819.71M	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$965.29M	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred Stock, $0.10 par value, 14,399 shares authorized, 0 shares issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Preferred Stock, $0.10 par value, 14,399 shares authorized, 0 shares issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Common Stock, $0.01 par value, 100,000 shares authorized, 71,616 and 71,389 shares issued and 30,689 and 30,816 shares outstanding	`CommonStockValue`	$716.00K	USD	Point-in-time
Common Stock, $0.01 par value, 100,000 shares authorized, 71,616 and 71,389 shares issued and 30,689 and 30,816 shares outstanding	`CommonStockValue`	$714.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$762.18M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$738.48M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.36B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.41B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-390.00K	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-184.00K	USD	Point-in-time
TOTAL SHAREHOLDERS EQUITY	`StockholdersEquityBeforeTreasuryStock`	$2.13B	USD	Point-in-time
TOTAL SHAREHOLDERS EQUITY	`StockholdersEquityBeforeTreasuryStock`	$2.15B	USD	Point-in-time
Treasury stock, 40,927 and 40,573 shares of common held at cost	`TreasuryStockValue`	$1.40B	USD	Point-in-time
Treasury stock, 40,927 and 40,573 shares of common held at cost	`TreasuryStockValue`	$1.38B	USD	Point-in-time
Total InterDigital, Inc. shareholders equity	`StockholdersEquity`	$724.27M	USD	Point-in-time
Total InterDigital, Inc. shareholders equity	`StockholdersEquity`	$773.37M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$11.05M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$23.20M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$735.32M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$802.68M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$786.28M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$790.71M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$732.57M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$716.25M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$796.57M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$775.60M	USD	Point-in-time
TOTAL LIABILITIES AND SHAREHOLDERS EQUITY	`LiabilitiesAndStockholdersEquity`	$1.70B	USD	Point-in-time
TOTAL LIABILITIES AND SHAREHOLDERS EQUITY	`LiabilitiesAndStockholdersEquity`	$1.62B	USD	Point-in-time

Income Statement 80 line items

Line Item	Tag	Value	Unit	Period
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$143.50M	USD	1 Quarter
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$87.49M	USD	1 Quarter
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$268.20M	USD	3 Qtrs
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$313.59M	USD	3 Qtrs
Patent administration and licensing	`PatentAdministrationAndLicensing`	$119.17M	USD	3 Qtrs
Patent administration and licensing	`PatentAdministrationAndLicensing`	$56.15M	USD	1 Quarter
Patent administration and licensing	`PatentAdministrationAndLicensing`	$133.69M	USD	3 Qtrs
Patent administration and licensing	`PatentAdministrationAndLicensing`	$40.36M	USD	1 Quarter
Development	`ResearchAndDevelopmentExpense`	$22.55M	USD	1 Quarter
Development	`ResearchAndDevelopmentExpense`	$61.76M	USD	3 Qtrs
Development	`ResearchAndDevelopmentExpense`	$20.84M	USD	1 Quarter
Development	`ResearchAndDevelopmentExpense`	$67.00M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$10.85M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$20.98M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$46.99M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$35.25M	USD	3 Qtrs
Restructuring activities	`RestructuringCostsAndAssetImpairmentCharges`	$7.04M	USD	1 Quarter
Restructuring activities	`RestructuringCostsAndAssetImpairmentCharges`	-	USD	3 Qtrs
Restructuring activities	`RestructuringCostsAndAssetImpairmentCharges`	$20.29M	USD	3 Qtrs
Restructuring activities	`RestructuringCostsAndAssetImpairmentCharges`	-	USD	1 Quarter
Total Operating expenses	`CostsAndExpenses`	$106.72M	USD	1 Quarter
Total Operating expenses	`CostsAndExpenses`	$216.17M	USD	3 Qtrs
Total Operating expenses	`CostsAndExpenses`	$267.98M	USD	3 Qtrs
Total Operating expenses	`CostsAndExpenses`	$72.06M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$36.78M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$15.43M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$45.62M	USD	3 Qtrs
Income from operations	`OperatingIncomeLoss`	$52.03M	USD	3 Qtrs
INTEREST EXPENSE	`InterestExpense`	$10.37M	USD	1 Quarter
INTEREST EXPENSE	`InterestExpense`	$30.88M	USD	3 Qtrs
INTEREST EXPENSE	`InterestExpense`	$5.77M	USD	1 Quarter
INTEREST EXPENSE	`InterestExpense`	$19.43M	USD	3 Qtrs
OTHER (EXPENSE) INCOME, NET	`OtherOperatingIncomeExpenseNet`	$2.23M	USD	3 Qtrs
OTHER (EXPENSE) INCOME, NET	`OtherOperatingIncomeExpenseNet`	$13.81M	USD	3 Qtrs
OTHER (EXPENSE) INCOME, NET	`OtherOperatingIncomeExpenseNet`	$3.99M	USD	1 Quarter
OTHER (EXPENSE) INCOME, NET	`OtherOperatingIncomeExpenseNet`	$-1.54M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$34.95M	USD	3 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$28.41M	USD	3 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$9.06M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$29.47M	USD	1 Quarter
INCOME TAX (PROVISION) BENEFIT	`IncomeTaxExpenseBenefit`	$-12.84M	USD	1 Quarter
INCOME TAX (PROVISION) BENEFIT	`IncomeTaxExpenseBenefit`	$-5.88M	USD	3 Qtrs
INCOME TAX (PROVISION) BENEFIT	`IncomeTaxExpenseBenefit`	$4.25M	USD	1 Quarter
INCOME TAX (PROVISION) BENEFIT	`IncomeTaxExpenseBenefit`	$6.04M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$22.38M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$25.21M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$21.90M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$40.83M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-8.41M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-11.04M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.78M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-5.32M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.88M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.61M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.01M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.66M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$46.15M	USD	3 Qtrs
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$1.62M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$33.42M	USD	3 Qtrs
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$22.25M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$116.00K	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$26.23M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$23.78M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$5.57M	USD	1 Quarter
NET INCOME PER COMMON SHARE BASIC (in USD per share)	`EarningsPerShareBasic`	$0.85	USD	1 Quarter
NET INCOME PER COMMON SHARE BASIC (in USD per share)	`EarningsPerShareBasic`	$0.77	USD	1 Quarter
NET INCOME PER COMMON SHARE BASIC (in USD per share)	`EarningsPerShareBasic`	$1.09	USD	3 Qtrs
NET INCOME PER COMMON SHARE BASIC (in USD per share)	`EarningsPerShareBasic`	$1.50	USD	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	30.74M	shares	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	30.76M	shares	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	30.80M	shares	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	30.79M	shares	3 Qtrs
NET INCOME PER COMMON SHARE DILUTED (in USD per share)	`EarningsPerShareDiluted`	$1.07	USD	3 Qtrs
NET INCOME PER COMMON SHARE DILUTED (in USD per share)	`EarningsPerShareDiluted`	$0.76	USD	1 Quarter
NET INCOME PER COMMON SHARE DILUTED (in USD per share)	`EarningsPerShareDiluted`	$1.49	USD	3 Qtrs
NET INCOME PER COMMON SHARE DILUTED (in USD per share)	`EarningsPerShareDiluted`	$0.83	USD	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	31.12M	shares	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	31.43M	shares	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	31.03M	shares	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	31.27M	shares	3 Qtrs

Cash Flow Statement 67 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$22.38M	USD	3 Qtrs
Net income	`ProfitLoss`	$25.21M	USD	1 Quarter
Net income	`ProfitLoss`	$21.90M	USD	1 Quarter
Net income	`ProfitLoss`	$40.83M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$61.03M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$58.97M	USD	3 Qtrs
Non-cash interest expense, net	`AmortizationOfFinancingCostsAndDiscounts`	$13.20M	USD	3 Qtrs
Non-cash interest expense, net	`AmortizationOfFinancingCostsAndDiscounts`	$5.24M	USD	3 Qtrs
Non-cash change in fair-value	`NonCashChangeinFairValue`	$-949.00K	USD	3 Qtrs
Non-cash change in fair-value	`NonCashChangeinFairValue`	$-5.50M	USD	3 Qtrs
Change in deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$64.04M	USD	3 Qtrs
Change in deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$53.07M	USD	3 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$14.42M	USD	3 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$5.52M	USD	3 Qtrs
Share-based compensation	`ShareBasedCompensation`	$21.01M	USD	3 Qtrs
Share-based compensation	`ShareBasedCompensation`	$7.90M	USD	3 Qtrs
Patent impairment	`ImpairmentOfIntangibleAssetsExcludingGoodwill`	$11.00M	USD	3 Qtrs
Patent impairment	`ImpairmentOfIntangibleAssetsExcludingGoodwill`	-	USD	3 Qtrs
Patent impairment	`ImpairmentOfIntangibleAssetsExcludingGoodwill`	-	USD	1 Quarter
Other	`OtherOperatingActivitiesCashFlowStatement`	-	USD	3 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$-63.00K	USD	3 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$10.00K	USD	3 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$125.65M	USD	3 Qtrs
Deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$26.75M	USD	3 Qtrs
Deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$13.46M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-1.68M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$2.27M	USD	3 Qtrs
Accrued compensation and other expenses	`IncreaseDecreaseInOtherAccruedLiabilities`	$7.70M	USD	3 Qtrs
Accrued compensation and other expenses	`IncreaseDecreaseInOtherAccruedLiabilities`	$28.73M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$59.16M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$144.21M	USD	3 Qtrs
Purchases of short-term investments	`PaymentsToAcquireShortTermInvestments`	$187.71M	USD	3 Qtrs
Purchases of short-term investments	`PaymentsToAcquireShortTermInvestments`	$498.15M	USD	3 Qtrs
Sales of short-term investments	`ProceedsFromSaleOfShortTermInvestments`	$195.07M	USD	3 Qtrs
Sales of short-term investments	`ProceedsFromSaleOfShortTermInvestments`	$516.72M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.88M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$9.88M	USD	3 Qtrs
Capitalized patent costs	`CapitalizedPatentCosts`	$23.73M	USD	3 Qtrs
Capitalized patent costs	`CapitalizedPatentCosts`	$28.14M	USD	3 Qtrs
Long-term investments	`PaymentsForProceedsFromLongtermInvestments`	$-4.26M	USD	3 Qtrs
Long-term investments	`PaymentsForProceedsFromLongtermInvestments`	$1.09M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-12.55M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-21.98M	USD	3 Qtrs
Net proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$1.79M	USD	3 Qtrs
Net proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$5.88M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	-	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$94.91M	USD	3 Qtrs
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$349.00K	USD	3 Qtrs
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$23.00M	USD	3 Qtrs
Non-controlling interest distribution	`PaymentsToMinorityShareholders`	-	USD	3 Qtrs
Non-controlling interest distribution	`PaymentsToMinorityShareholders`	$1.11M	USD	3 Qtrs
Taxes withheld upon restricted stock unit vestings	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$3.75M	USD	3 Qtrs
Taxes withheld upon restricted stock unit vestings	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$1.53M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$32.32M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$32.29M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-54.29M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-127.29M	USD	3 Qtrs
NET DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-5.05M	USD	3 Qtrs
NET DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-7.68M	USD	3 Qtrs
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$469.99M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$477.66M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$757.10M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$752.04M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$469.99M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$477.66M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$757.10M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$752.04M	USD	Point-in-time

Stockholders Equity 133 line items

Line Item	Tag	Value	Unit	Period
Dividends declared (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in USD per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-70.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-67.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$32.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$82.00K	USD	3 Qtrs
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-362.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$412.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-206.00K	USD	3 Qtrs
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-69.00K	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$349.00K	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$5.75M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$5.39M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$11.86M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.27M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$15.08M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.77M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.15M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.00M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$4.63M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.52M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$778.00K	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$3.63M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.01M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$737.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-725.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-711.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-2.96M	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-55.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-755.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-74.00K	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.76M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.78M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.77M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.77M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.74M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.78M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$46.15M	USD	3 Qtrs
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$1.62M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$33.42M	USD	3 Qtrs
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$22.25M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$116.00K	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$26.23M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$23.78M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$5.57M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-8.41M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-11.04M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.78M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-5.32M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.88M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.61M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.01M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.66M	USD	1 Quarter
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$735.32M	USD	Point-in-time
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$802.68M	USD	Point-in-time
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$786.28M	USD	Point-in-time
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$790.71M	USD	Point-in-time
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$732.57M	USD	Point-in-time
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$716.25M	USD	Point-in-time
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$796.57M	USD	Point-in-time
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$775.60M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$735.32M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$802.68M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$786.28M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$790.71M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$732.57M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$716.25M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$796.57M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$775.60M	USD	Point-in-time
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$46.15M	USD	3 Qtrs
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$1.62M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$33.42M	USD	3 Qtrs
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$22.25M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$116.00K	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$26.23M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$23.78M	USD	1 Quarter
Net income attributable to InterDigital, Inc.	`NetIncomeLoss`	$5.57M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-8.41M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-11.04M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.78M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-5.32M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.88M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.61M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.01M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.66M	USD	1 Quarter
Noncontrolling interest distribution	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$1.11M	USD	1 Quarter
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-70.00K	USD	1 Quarter
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-67.00K	USD	1 Quarter
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$32.00K	USD	1 Quarter
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$82.00K	USD	3 Qtrs
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-362.00K	USD	1 Quarter
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$412.00K	USD	1 Quarter
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-206.00K	USD	3 Qtrs
Net change in unrealized loss on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-69.00K	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.76M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.78M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.77M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.77M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.74M	USD	1 Quarter
Dividends declared ($0.35 per share)	`Dividends`	$10.78M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.52M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$778.00K	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$3.63M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.01M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$737.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-725.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-711.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-2.96M	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-55.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-755.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-74.00K	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.27M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$15.08M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.77M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.15M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.00M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$4.63M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$349.00K	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$5.75M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$5.39M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$11.86M	USD	1 Quarter
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$735.32M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$802.68M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$786.28M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$790.71M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$732.57M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$716.25M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$796.57M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$775.60M	USD	Point-in-time

Comprehensive Income 24 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$22.38M	USD	3 Qtrs
Net income	`ProfitLoss`	$25.21M	USD	1 Quarter
Net income	`ProfitLoss`	$21.90M	USD	1 Quarter
Net income	`ProfitLoss`	$40.83M	USD	3 Qtrs
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-70.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-67.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$32.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$82.00K	USD	3 Qtrs
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-362.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$412.00K	USD	1 Quarter
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-206.00K	USD	3 Qtrs
Unrealized (loss) gain on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-69.00K	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$25.15M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$40.91M	USD	3 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$21.54M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$22.17M	USD	3 Qtrs
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-1.01M	USD	1 Quarter
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-1.88M	USD	1 Quarter
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-5.32M	USD	3 Qtrs
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-11.04M	USD	3 Qtrs
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$46.23M	USD	3 Qtrs
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$33.21M	USD	3 Qtrs
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$26.16M	USD	1 Quarter
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$23.42M	USD	1 Quarter

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