10-Q Filing

INTERDIGITAL, INC. CIK: 1405495 Q3 2019

Filing Information

Form Type	10-Q
Accession Number	`0001405495-19-000049`
Period End Date	20190930
Filing Date	20191031
Fiscal Year	2019
Fiscal Period	Q3
XBRL Instance	idcc-q393019_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 98 Income Statement 75 Cash Flow Statement 105 Stockholders Equity 78 Comprehensive Income 24

Balance Sheet 98 line items

Line Item	Tag	Value	Unit	Period
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivable`	$693.00K	USD	Point-in-time
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivable`	$537.00K	USD	Point-in-time
Common stock, par value (in usd per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in usd per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$475.06M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$508.83M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$735.89M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	100.00M	shares	Point-in-time
Short-term investments	`ShortTermInvestments`	$211.74M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	71.27M	shares	Point-in-time
Short-term investments	`ShortTermInvestments`	$470.72M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	71.13M	shares	Point-in-time
Accounts receivable, less allowances of $537 and $693	`AccountsReceivableNet`	$35.03M	USD	Point-in-time
Accounts receivable, less allowances of $537 and $693	`AccountsReceivableNet`	$23.36M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	31.13M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	33.53M	shares	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$43.44M	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
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$51.55M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.02B	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	14.40M	shares	Point-in-time
Total current assets	`AssetsCurrent`	$1.02B	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	14.40M	shares	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$10.02M	USD	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$10.05M	USD	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
PATENTS, NET	`FiniteLivedPatentsNet`	$454.57M	USD	Point-in-time
PATENTS, NET	`FiniteLivedPatentsNet`	$448.96M	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
Treasury stock, shares of common held at cost (in shares)	`TreasuryStockCommonShares`	37.60M	shares	Point-in-time
Treasury stock, shares of common held at cost (in shares)	`TreasuryStockCommonShares`	40.13M	shares	Point-in-time
DEFERRED TAX ASSETS	`DeferredIncomeTaxAssetsNet`	$85.44M	USD	Point-in-time
DEFERRED TAX ASSETS	`DeferredIncomeTaxAssetsNet`	$77.22M	USD	Point-in-time
OTHER NON-CURRENT ASSETS	`OtherAssetsNoncurrent`	$61.37M	USD	Point-in-time
OTHER NON-CURRENT ASSETS	`OtherAssetsNoncurrent`	$60.47M	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$605.78M	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$602.31M	USD	Point-in-time
TOTAL ASSETS	`Assets`	$1.63B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$1.63B	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	-	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$93.13M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrentAndNoncurrent`	$12.71M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrentAndNoncurrent`	$19.37M	USD	Point-in-time
Accrued compensation and related expenses	`EmployeeRelatedLiabilitiesCurrent`	$26.44M	USD	Point-in-time
Accrued compensation and related expenses	`EmployeeRelatedLiabilitiesCurrent`	$26.84M	USD	Point-in-time
Deferred revenue	`ContractWithCustomerLiabilityCurrent`	$111.67M	USD	Point-in-time
Deferred revenue	`ContractWithCustomerLiabilityCurrent`	$171.43M	USD	Point-in-time
Taxes payable	`TaxesPayableCurrentAndNoncurrent`	$193.00K	USD	Point-in-time
Taxes payable	`TaxesPayableCurrentAndNoncurrent`	$1.51M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$11.63M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$12.00M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$10.90M	USD	Point-in-time
Other accrued expenses	`OtherAccruedLiabilitiesCurrentAndNoncurrent`	$19.49M	USD	Point-in-time
Other accrued expenses	`OtherAccruedLiabilitiesCurrentAndNoncurrent`	$8.38M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$179.40M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$334.30M	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$317.38M	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$346.40M	USD	Point-in-time
LONG-TERM DEFERRED REVENUE	`ContractWithCustomerLiabilityNoncurrent`	$157.63M	USD	Point-in-time
LONG-TERM DEFERRED REVENUE	`ContractWithCustomerLiabilityNoncurrent`	$107.50M	USD	Point-in-time
OTHER LONG-TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$36.81M	USD	Point-in-time
OTHER LONG-TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$34.14M	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$825.00M	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$688.54M	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, 71,267 and 71,134 shares issued and 31,133 and 33,529 shares outstanding	`CommonStockValue`	$712.00K	USD	Point-in-time
Common Stock, $0.01 par value, 100,000 shares authorized, 71,267 and 71,134 shares issued and 31,133 and 33,529 shares outstanding	`CommonStockValue`	$711.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$685.51M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$725.89M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.41B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.44B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-2.47M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-105.00K	USD	Point-in-time
TOTAL SHAREHOLDERS EQUITY	`StockholdersEquityBeforeTreasuryStock`	$2.14B	USD	Point-in-time
TOTAL SHAREHOLDERS EQUITY	`StockholdersEquityBeforeTreasuryStock`	$2.12B	USD	Point-in-time
Treasury stock, 40,134 and 37,605 shares of common held at cost	`TreasuryStockValue`	$1.18B	USD	Point-in-time
Treasury stock, 40,134 and 37,605 shares of common held at cost	`TreasuryStockValue`	$1.35B	USD	Point-in-time
Total InterDigital, Inc. shareholders equity	`StockholdersEquity`	$782.11M	USD	Point-in-time
Total InterDigital, Inc. shareholders equity	`StockholdersEquity`	$936.73M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$1.28M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$21.19M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$873.15M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$803.30M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.02B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$825.51M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$938.01M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.04B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.04B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$800.24M	USD	Point-in-time
TOTAL LIABILITIES AND SHAREHOLDERS EQUITY	`LiabilitiesAndStockholdersEquity`	$1.63B	USD	Point-in-time
TOTAL LIABILITIES AND SHAREHOLDERS EQUITY	`LiabilitiesAndStockholdersEquity`	$1.63B	USD	Point-in-time

Income Statement 75 line items

Line Item	Tag	Value	Unit	Period
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$72.52M	USD	1 Quarter
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$75.08M	USD	1 Quarter
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$216.76M	USD	3 Qtrs
REVENUES	`RevenueFromContractWithCustomerExcludingAssessedTax`	$232.08M	USD	3 Qtrs
Patent administration and licensing	`PatentAdministrationAndLicensing`	$85.48M	USD	3 Qtrs
Patent administration and licensing	`PatentAdministrationAndLicensing`	$32.08M	USD	1 Quarter
Patent administration and licensing	`PatentAdministrationAndLicensing`	$108.20M	USD	3 Qtrs
Patent administration and licensing	`PatentAdministrationAndLicensing`	$34.77M	USD	1 Quarter
Development	`ResearchAndDevelopmentExpense`	$20.51M	USD	1 Quarter
Development	`ResearchAndDevelopmentExpense`	$17.28M	USD	1 Quarter
Development	`ResearchAndDevelopmentExpense`	$49.28M	USD	3 Qtrs
Development	`ResearchAndDevelopmentExpense`	$56.03M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$13.47M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$38.57M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$12.81M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$40.00M	USD	3 Qtrs
TOTAL OPERATING EXPENSES	`CostsAndExpenses`	$68.75M	USD	1 Quarter
TOTAL OPERATING EXPENSES	`CostsAndExpenses`	$173.33M	USD	3 Qtrs
TOTAL OPERATING EXPENSES	`CostsAndExpenses`	$62.16M	USD	1 Quarter
TOTAL OPERATING EXPENSES	`CostsAndExpenses`	$204.22M	USD	3 Qtrs
Income from operations	`OperatingIncomeLoss`	$12.92M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$12.54M	USD	3 Qtrs
Income from operations	`OperatingIncomeLoss`	$3.77M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$58.75M	USD	3 Qtrs
INTEREST EXPENSE	`InterestExpense`	$9.04M	USD	1 Quarter
INTEREST EXPENSE	`InterestExpense`	$30.30M	USD	3 Qtrs
INTEREST EXPENSE	`InterestExpense`	$10.92M	USD	1 Quarter
INTEREST EXPENSE	`InterestExpense`	$27.24M	USD	3 Qtrs
OTHER INCOME (EXPENSE), NET	`OtherOperatingIncomeExpenseNet`	$2.11M	USD	3 Qtrs
OTHER INCOME (EXPENSE), NET	`OtherOperatingIncomeExpenseNet`	$23.77M	USD	3 Qtrs
OTHER INCOME (EXPENSE), NET	`OtherOperatingIncomeExpenseNet`	$7.80M	USD	1 Quarter
OTHER INCOME (EXPENSE), NET	`OtherOperatingIncomeExpenseNet`	$-4.91M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$33.61M	USD	3 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$6.01M	USD	3 Qtrs
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-1.03M	USD	1 Quarter
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$657.00K	USD	1 Quarter
INCOME TAX BENEFIT (PROVISION)	`IncomeTaxExpenseBenefit`	$-25.00M	USD	3 Qtrs
INCOME TAX BENEFIT (PROVISION)	`IncomeTaxExpenseBenefit`	$-178.00K	USD	1 Quarter
INCOME TAX BENEFIT (PROVISION)	`IncomeTaxExpenseBenefit`	$-21.14M	USD	1 Quarter
INCOME TAX BENEFIT (PROVISION)	`IncomeTaxExpenseBenefit`	$3.01M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$58.62M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$835.00K	USD	1 Quarter
NET INCOME	`ProfitLoss`	$3.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$20.11M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.40M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.17M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.64M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.33M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.19M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.50M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.41M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$62.95M	USD	3 Qtrs
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$2.23M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$10.97M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$21.75M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$7.17M	USD	3 Qtrs
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$7.74M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$30.23M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO INTERDIGITAL, INC.	`NetIncomeLoss`	$-2.80M	USD	1 Quarter
NET INCOME PER COMMON SHARE BASIC (in usd per share)	`EarningsPerShareBasic`	$1.81	USD	3 Qtrs
NET INCOME PER COMMON SHARE BASIC (in usd per share)	`EarningsPerShareBasic`	$0.63	USD	1 Quarter
NET INCOME PER COMMON SHARE BASIC (in usd per share)	`EarningsPerShareBasic`	$0.23	USD	3 Qtrs
NET INCOME PER COMMON SHARE BASIC (in usd per share)	`EarningsPerShareBasic`	$0.07	USD	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	34.69M	shares	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	31.13M	shares	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	31.76M	shares	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	34.65M	shares	1 Quarter
NET INCOME PER COMMON SHARE DILUTED (in usd per share)	`EarningsPerShareDiluted`	$0.07	USD	1 Quarter
NET INCOME PER COMMON SHARE DILUTED (in usd per share)	`EarningsPerShareDiluted`	$1.77	USD	3 Qtrs
NET INCOME PER COMMON SHARE DILUTED (in usd per share)	`EarningsPerShareDiluted`	$0.61	USD	1 Quarter
NET INCOME PER COMMON SHARE DILUTED (in usd per share)	`EarningsPerShareDiluted`	$0.22	USD	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	32.01M	shares	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	35.61M	shares	3 Qtrs
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	35.61M	shares	1 Quarter
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	31.31M	shares	1 Quarter

Cash Flow Statement 105 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$58.62M	USD	3 Qtrs
Net income	`ProfitLoss`	$835.00K	USD	1 Quarter
Net income	`ProfitLoss`	$3.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$20.11M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$56.91M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$47.02M	USD	3 Qtrs
Non-cash interest expense, net	`AmortizationOfFinancingCostsAndDiscounts`	$13.59M	USD	3 Qtrs
Non-cash interest expense, net	`AmortizationOfFinancingCostsAndDiscounts`	$10.68M	USD	3 Qtrs
Non-cash change in fair-value	`NonCashChangeinFairValue`	-	USD	3 Qtrs
Non-cash change in fair-value	`NonCashChangeinFairValue`	$710.00K	USD	3 Qtrs
Gain on asset acquisition and sale of business	`GainLossOnAssetAcquisitionAndDispositionOfBusiness`	-	USD	1 Quarter
Gain on asset acquisition and sale of business	`GainLossOnAssetAcquisitionAndDispositionOfBusiness`	$22.69M	USD	3 Qtrs
Gain on asset acquisition and sale of business	`GainLossOnAssetAcquisitionAndDispositionOfBusiness`	$8.52M	USD	1 Quarter
Gain on asset acquisition and sale of business	`GainLossOnAssetAcquisitionAndDispositionOfBusiness`	-	USD	3 Qtrs
Change in deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$9.82M	USD	3 Qtrs
Change in deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$875.00K	USD	3 Qtrs
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-5.49M	USD	3 Qtrs
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-8.01M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-27.67M	USD	3 Qtrs
Share-based compensation	`ShareBasedCompensation`	$4.88M	USD	3 Qtrs
Share-based compensation	`ShareBasedCompensation`	$6.02M	USD	3 Qtrs
Impairment of long-term investment	`EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount`	$3.31M	USD	3 Qtrs
Impairment of long-term investment	`EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount`	$3.30M	USD	1 Quarter
Impairment of long-term investment	`EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount`	$200.00K	USD	3 Qtrs
Loss on disposal of assets	`GainLossOnDispositionOfAssets1`	$-119.00K	USD	3 Qtrs
Loss on disposal of assets	`GainLossOnDispositionOfAssets1`	$-8.18M	USD	3 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$623.00K	USD	3 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$-2.00K	USD	3 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$-36.86M	USD	3 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$-11.66M	USD	3 Qtrs
Deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$63.78M	USD	3 Qtrs
Deferred charges and other assets	`IncreaseDecreaseInOtherOperatingAssets`	$2.18M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$5.64M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-2.55M	USD	3 Qtrs
Accrued compensation and other expenses	`IncreaseDecreaseInOtherAccruedLiabilities`	$6.43M	USD	3 Qtrs
Accrued compensation and other expenses	`IncreaseDecreaseInOtherAccruedLiabilities`	$-5.62M	USD	3 Qtrs
Accrued taxes payable and other tax contingencies	`IncreaseDecreaseInAccruedTaxesPayable`	$91.80M	USD	3 Qtrs
Accrued taxes payable and other tax contingencies	`IncreaseDecreaseInAccruedTaxesPayable`	$-1.31M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$176.62M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$71.98M	USD	3 Qtrs
Purchases of short-term investments	`PaymentsToAcquireShortTermInvestments`	$92.27M	USD	3 Qtrs
Purchases of short-term investments	`PaymentsToAcquireShortTermInvestments`	$142.56M	USD	3 Qtrs
Sales of short-term investments	`ProceedsFromSaleOfShortTermInvestments`	$355.65M	USD	3 Qtrs
Sales of short-term investments	`ProceedsFromSaleOfShortTermInvestments`	$317.45M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.88M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$3.06M	USD	3 Qtrs
Proceeds from sale of business	`ProceedsFromDivestitureOfBusinesses`	$10.00M	USD	Point-in-time
Proceeds from sale of business	`ProceedsFromDivestitureOfBusinesses`	$10.00M	USD	3 Qtrs
Proceeds from sale of business	`ProceedsFromDivestitureOfBusinesses`	-	USD	3 Qtrs
Capitalized patent costs	`CapitalizedPatentCosts`	$23.84M	USD	3 Qtrs
Capitalized patent costs	`CapitalizedPatentCosts`	$26.12M	USD	3 Qtrs
Acquisition of patents	`PaymentsToAcquireIntangibleAssets`	-	USD	3 Qtrs
Acquisition of patents	`PaymentsToAcquireIntangibleAssets`	$2.25M	USD	3 Qtrs
Acquisition of business, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$142.99M	USD	3 Qtrs
Acquisition of business, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	3 Qtrs
Long-term investments	`PaymentsToAcquireLongtermInvestments`	-	USD	3 Qtrs
Long-term investments	`PaymentsToAcquireLongtermInvestments`	$6.69M	USD	3 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$244.19M	USD	3 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.76M	USD	3 Qtrs
Net proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$6.36M	USD	3 Qtrs
Net proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$2.00K	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	-	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$221.10M	USD	Point-in-time
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$221.09M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$221.10M	USD	1 Quarter
Proceeds from issuance of convertible senior notes	`ProceedsFromConvertibleDebt`	-	USD	3 Qtrs
Proceeds from issuance of convertible senior notes	`ProceedsFromConvertibleDebt`	$400.00M	USD	3 Qtrs
Purchase of convertible bond hedge	`PurchaseofConvertibleBondHedge`	$72.00M	USD	3 Qtrs
Purchase of convertible bond hedge	`PurchaseofConvertibleBondHedge`	-	USD	3 Qtrs
Payment for warrant unwind	`PaymentForWarrantUnwind`	-	USD	3 Qtrs
Payment for warrant unwind	`PaymentForWarrantUnwind`	$4.20M	USD	1 Quarter
Payment for warrant unwind	`PaymentForWarrantUnwind`	$4.18M	USD	3 Qtrs
Prepayment penalty on long-term debt	`PaymentsOfDebtExtinguishmentCosts`	-	USD	3 Qtrs
Prepayment penalty on long-term debt	`PaymentsOfDebtExtinguishmentCosts`	$10.76M	USD	3 Qtrs
Proceeds from hedge unwind	`ProceedsFromHedgeUnwind`	$9.00M	USD	1 Quarter
Proceeds from hedge unwind	`ProceedsFromHedgeUnwind`	-	USD	3 Qtrs
Proceeds from hedge unwind	`ProceedsFromHedgeUnwind`	$9.04M	USD	3 Qtrs
Proceeds from issuance of warrants	`ProceedsFromIssuanceOfWarrants`	$47.60M	USD	Point-in-time
Proceeds from issuance of warrants	`ProceedsFromIssuanceOfWarrants`	$47.60M	USD	3 Qtrs
Proceeds from issuance of warrants	`ProceedsFromIssuanceOfWarrants`	-	USD	3 Qtrs
Payments of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$8.38M	USD	3 Qtrs
Payments of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	3 Qtrs
Proceeds from non-controlling interests	`ProceedsFromMinorityShareholders`	$10.33M	USD	3 Qtrs
Proceeds from non-controlling interests	`ProceedsFromMinorityShareholders`	-	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$33.68M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$36.47M	USD	3 Qtrs
Taxes withheld upon restricted stock unit vestings	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$4.32M	USD	3 Qtrs
Taxes withheld upon restricted stock unit vestings	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$8.48M	USD	3 Qtrs
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$171.27M	USD	3 Qtrs
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$43.51M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-82.10M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-58.71M	USD	3 Qtrs
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$91.76M	USD	3 Qtrs
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$257.46M	USD	3 Qtrs
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$524.77M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$746.20M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$433.01M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$488.73M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$524.77M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$746.20M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$433.01M	USD	Point-in-time
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$488.73M	USD	Point-in-time

Stockholders Equity 78 line items

Line Item	Tag	Value	Unit	Period
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$873.15M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$803.30M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.02B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$825.51M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$938.01M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.04B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.04B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$800.24M	USD	Point-in-time
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$62.95M	USD	3 Qtrs
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$2.23M	USD	1 Quarter
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$10.97M	USD	1 Quarter
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$21.75M	USD	1 Quarter
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$7.17M	USD	3 Qtrs
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$7.74M	USD	1 Quarter
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$30.23M	USD	1 Quarter
Net loss (income) attributable to InterDigital, Inc.	`NetIncomeLoss`	$-2.80M	USD	1 Quarter
Proceeds from and increases in noncontrolling interests	`NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest`	$12.83M	USD	1 Quarter
Proceeds from and increases in noncontrolling interests	`NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest`	$11.25M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.40M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.17M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.64M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.33M	USD	3 Qtrs
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.19M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.50M	USD	1 Quarter
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.41M	USD	1 Quarter
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-1.75M	USD	1 Quarter
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$467.00K	USD	1 Quarter
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$245.00K	USD	1 Quarter
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$1.04M	USD	1 Quarter
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-904.00K	USD	3 Qtrs
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$2.37M	USD	3 Qtrs
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$376.00K	USD	1 Quarter
Net change in unrealized gain (loss) on short-term investments	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$1.08M	USD	1 Quarter
Dividends declared	`Dividends`	$12.00M	USD	1 Quarter
Dividends declared	`Dividends`	$12.16M	USD	1 Quarter
Dividends declared	`Dividends`	$10.89M	USD	1 Quarter
Dividends declared	`Dividends`	$10.90M	USD	1 Quarter
Dividends declared	`Dividends`	$12.15M	USD	1 Quarter
Dividends declared	`Dividends`	$11.18M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$2.43M	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$2.00K	USD	1 Quarter
Exercise of common stock options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$3.93M	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-91.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-8.28M	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-4.10M	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-111.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-40.00K	USD	1 Quarter
Issuance of common stock, net	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-179.00K	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$816.00K	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.24M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.82M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.12M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.10M	USD	1 Quarter
Amortization of unearned compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.80M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$6.02M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$108.99M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$3.15M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$34.34M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$62.28M	USD	1 Quarter
Equity component of debt, net of tax	`AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt`	$56.92M	USD	1 Quarter
Net convertible note hedge transactions, net of tax	`NetConvertibleNoteHedgeTransactionsNetofTax`	$49.74M	USD	1 Quarter
Net warrant transactions	`AdjustmentsToAdditionalPaidInCapitalWarrantIssued`	$43.42M	USD	1 Quarter
Deferred financing costs allocated to equity, net of tax	`AdjustmentsToAdditionalPaidInCapitalOther`	$-1.57M	USD	1 Quarter
Reacquisition of equity component of debt due to prepayment, net of tax	`AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments`	$10.65M	USD	1 Quarter
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$873.15M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$803.30M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.02B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$825.51M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$938.01M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.04B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.04B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$800.24M	USD	Point-in-time

Comprehensive Income 24 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$58.62M	USD	3 Qtrs
Net income	`ProfitLoss`	$835.00K	USD	1 Quarter
Net income	`ProfitLoss`	$3.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$20.11M	USD	1 Quarter
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-1.75M	USD	1 Quarter
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$467.00K	USD	1 Quarter
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$245.00K	USD	1 Quarter
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$1.04M	USD	1 Quarter
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-904.00K	USD	3 Qtrs
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$2.37M	USD	3 Qtrs
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$376.00K	USD	1 Quarter
Unrealized gain (loss) on investments, net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$1.08M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$1.08M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$57.71M	USD	3 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$5.37M	USD	3 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$20.58M	USD	1 Quarter
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-1.64M	USD	1 Quarter
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-1.40M	USD	1 Quarter
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-4.33M	USD	3 Qtrs
Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-4.17M	USD	3 Qtrs
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$9.54M	USD	3 Qtrs
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$22.22M	USD	1 Quarter
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$62.04M	USD	3 Qtrs
Total comprehensive income attributable to InterDigital, Inc.	`ComprehensiveIncomeNetOfTax`	$2.48M	USD	1 Quarter

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