$IDCC
InterDigital, Inc. Stock $idcc

$idcc Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-Q Financial Statement

#000140549519000049 Filed on October 31, 2019

Income Statement

Concept	2019 Q4	2019 Q3	2018 Q4
Revenue	$102.2M	$72.52M	$75.33M
YoY Change	35.63%	-3.4%	-63.31%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$58.00M	$13.47M	$51.10M
YoY Change	13.5%	5.19%	41.55%
% of Gross Profit
Research & Development	$18.80M	$20.51M	$20.40M
YoY Change	-7.84%	18.7%	-13.19%
% of Gross Profit
Depreciation & Amortization	$20.20M	$19.30M	$19.10M
YoY Change	5.76%	9.04%	33.57%
% of Gross Profit
Operating Expenses	$76.90M	$33.98M	$71.50M
YoY Change	7.55%	12.95%	19.97%
Operating Profit	$25.30M	$3.774M
YoY Change		-70.79%
Interest Expense	-$6.800M	$10.92M	-$5.100M
YoY Change	33.33%	20.81%	155.0%
% of Operating Profit	-26.88%	289.35%
Other Income/Expense, Net	$1.500M	-$4.400M	-$300.0K
YoY Change	-600.0%	-49.43%	-250.0%
Pretax Income	$19.90M	$657.0K	-$1.600M
YoY Change	-1343.75%	-163.6%	-101.11%
Income Tax	$8.000M	-$178.0K	$15.60M
% Of Pretax Income	40.2%	-27.09%
Net Earnings	$13.75M	$2.234M	$2.083M
YoY Change	560.3%	-89.73%	-96.03%
Net Earnings / Revenue	13.46%	3.08%	2.77%
Basic Earnings Per Share	$0.44	$0.07	$0.06
Diluted Earnings Per Share	$0.44	$0.07	$0.06
COMMON SHARES
Basic Shares Outstanding	31.13M shares	31.13M shares	33.84M shares
Diluted Shares Outstanding		31.31M shares

Balance Sheet

Concept	2019 Q4	2019 Q3	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$924.7M	$947.6M	$945.8M
YoY Change	-2.23%	-10.47%	-18.32%
Cash & Equivalents	$745.5M	$735.9M	$475.1M
Short-Term Investments	$179.2M	$211.7M	$470.7M
Other Short-Term Assets	$8.530M	$51.50M	$43.40M
YoY Change	-80.35%	-49.9%	101.86%
Inventory
Prepaid Expenses	$16.81M
Receivables	$28.30M	$23.40M	$35.00M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.016B	$1.023B	$1.024B
YoY Change	-0.77%	-14.14%	-26.62%
LONG-TERM ASSETS
Property, Plant & Equipment	$10.22M	$10.02M	$10.05M
YoY Change	1.65%	-2.53%	-5.83%
Goodwill	$22.42M		$22.42M
YoY Change	0.0%		39.84%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$76.03M	$61.37M	$60.47M
YoY Change	25.74%	-3.93%	59.27%
Total Long-Term Assets	$595.8M	$605.8M	$602.3M
YoY Change	-1.09%	1.44%	31.33%
TOTAL ASSETS
Total Short-Term Assets	$1.016B	$1.023B	$1.024B
Total Long-Term Assets	$595.8M	$605.8M	$602.3M
Total Assets	$1.612B	$1.628B	$1.627B
YoY Change	-0.89%	-8.94%	-12.29%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$13.40M	$12.70M	$19.40M
YoY Change	-30.93%	-27.43%	88.35%
Accrued Expenses	$40.50M	$45.90M	$35.20M
YoY Change	15.06%	44.34%	10.0%
Deferred Revenue	$146.7M	$171.4M	$111.7M
YoY Change	31.33%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$94.17M	$93.13M	$0.00
YoY Change
Total Short-Term Liabilities	$305.6M	$334.3M	$179.4M
YoY Change	70.33%	13.88%	-52.34%
LONG-TERM LIABILITIES
Long-Term Debt	$350.6M	$346.4M	$317.4M
YoY Change	10.46%	10.48%	11.31%
Other Long-Term Liabilities	$46.00M	$36.81M	$34.14M
YoY Change	34.75%	20.71%	240.23%
Total Long-Term Liabilities	$396.6M	$383.2M	$351.5M
YoY Change	12.82%	11.39%	19.09%
TOTAL LIABILITIES
Total Short-Term Liabilities	$305.6M	$334.3M	$179.4M
Total Long-Term Liabilities	$396.6M	$383.2M	$351.5M
Total Liabilities	$825.8M	$825.0M	$688.5M
YoY Change	19.93%	6.72%	-29.83%
SHAREHOLDERS EQUITY
Retained Earnings	$1.413B	$1.410B	$1.436B
YoY Change	-1.62%		14.18%
Common Stock	$712.0K	$712.0K	$711.0K
YoY Change	0.14%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.379B	$1.354B	$1.183B
YoY Change	16.59%	21.35%	-210.3%
Treasury Stock Shares			37.61M shares
Shareholders Equity	$761.6M	$782.1M	$936.7M
YoY Change
Total Liabilities & Shareholders Equity	$1.612B	$1.628B	$1.627B
YoY Change	-0.89%	-8.94%	-12.29%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2018 Q4
OPERATING ACTIVITIES
Net Income	$13.75M	$2.234M	$2.083M
YoY Change	560.3%	-89.73%	-96.03%
Depreciation, Depletion And Amortization	$20.20M	$19.30M	$19.10M
YoY Change	5.76%	9.04%	33.57%
Cash From Operating Activities	$17.40M	$125.5M	-$29.80M
YoY Change	-158.39%	-26.35%	-113.7%
INVESTING ACTIVITIES
Capital Expenditures	-$8.800M	-$8.500M	-$8.900M
YoY Change	-1.12%	-12.37%	-9.18%
Acquisitions
YoY Change
Other Investing Activities	$32.80M	$98.20M	$81.70M
YoY Change	-59.85%	-184.95%	-281.56%
Cash From Investing Activities	$24.10M	$89.70M	$72.80M
YoY Change	-66.9%	-171.59%	-233.09%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-30.60M	-12.10M	-79.00M
YoY Change	-61.27%	-72.62%	493.98%
NET CHANGE
Cash From Operating Activities	17.40M	125.5M	-29.80M
Cash From Investing Activities	24.10M	89.70M	72.80M
Cash From Financing Activities	-30.60M	-12.10M	-79.00M
Net Change In Cash	10.90M	203.1M	-36.00M
YoY Change	-130.28%	22466.67%	-124.08%
FREE CASH FLOW
Cash From Operating Activities	$17.40M	$125.5M	-$29.80M
Capital Expenditures	-$8.800M	-$8.500M	-$8.900M
Free Cash Flow	$26.20M	$134.0M	-$20.90M
YoY Change	-225.36%	-25.6%	-109.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Entity Central Index Key EntityCentralIndexKey	0001405495
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	693000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	537000	USD
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	71134000	shares
CY2019Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	71267000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	33529000	shares
CY2019Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	31133000	shares
CY2019Q3	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	8500000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-8400000	USD
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.1
CY2019Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.1
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	14399000	shares
CY2019Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	14399000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P3Y
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5500000	USD
CY2018Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	37605000	shares
CY2019Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	40134000	shares
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2019-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-33579
	dei	Entity Registrant Name EntityRegistrantName	INTERDIGITAL, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	82-4936666
	dei	Entity Address Address Line1 EntityAddressAddressLine1	200 Bellevue Parkway
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 300
	dei	Entity Address City Or Town EntityAddressCityOrTown	Wilmington
	dei	Entity Address State Or Province EntityAddressStateOrProvince	DE
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	19809-3727
	dei	City Area Code CityAreaCode	302
	dei	Local Phone Number LocalPhoneNumber	281-3600
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	IDCC
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2019Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	31132944	shares
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	735886000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	475056000	USD
CY2019Q3	us-gaap	Short Term Investments ShortTermInvestments	211737000	USD
CY2018Q4	us-gaap	Short Term Investments ShortTermInvestments	470724000	USD
CY2019Q3	us-gaap	Accounts Receivable Net AccountsReceivableNet	23355000	USD
CY2018Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	35032000	USD
CY2019Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	51545000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	43438000	USD
CY2019Q3	us-gaap	Assets Current AssetsCurrent	1022523000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	1024250000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10018000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10051000	USD
CY2019Q3	idcc	Finite Lived Patents Net FiniteLivedPatentsNet	448957000	USD
CY2018Q4	idcc	Finite Lived Patents Net FiniteLivedPatentsNet	454567000	USD
CY2019Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	85437000	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	77225000	USD
CY2019Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	61367000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	60465000	USD
CY2019Q3	us-gaap	Assets Noncurrent AssetsNoncurrent	605779000	USD
CY2018Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	602308000	USD
CY2019Q3	us-gaap	Assets Assets	1628302000	USD
CY2018Q4	us-gaap	Assets Assets	1626558000	USD
CY2019Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	93131000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2019Q3	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	12713000	USD
CY2018Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	19367000	USD
CY2019Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	26440000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	26838000	USD
CY2019Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	171433000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	111672000	USD
CY2019Q3	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	193000	USD
CY2018Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	1508000	USD
CY2019Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	10897000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	11627000	USD
CY2019Q3	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	19492000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	8383000	USD
CY2019Q3	us-gaap	Liabilities Current LiabilitiesCurrent	334299000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	179395000	USD
CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	346397000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	317377000	USD
CY2019Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	107498000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	157634000	USD
CY2019Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	36809000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	688545000	USD
CY2019Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	34139000	USD
CY2019Q3	us-gaap	Liabilities Liabilities	825003000	USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q3	us-gaap	Common Stock Value CommonStockValue	712000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	711000	USD
CY2019Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	725891000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	685512000	USD
CY2019Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1409870000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1435970000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-105000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2471000	USD
CY2019Q3	us-gaap	Stockholders Equity Before Treasury Stock StockholdersEquityBeforeTreasuryStock	2136368000	USD
CY2018Q4	us-gaap	Stockholders Equity Before Treasury Stock StockholdersEquityBeforeTreasuryStock	2119722000	USD
CY2019Q3	us-gaap	Treasury Stock Value TreasuryStockValue	1354262000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1182993000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	782106000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	936729000	USD
CY2019Q3	us-gaap	Minority Interest MinorityInterest	21193000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	1284000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	803299000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	938013000	USD
CY2019Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1628302000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1626558000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	72523000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	75079000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	216763000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	232078000	USD
CY2019Q3	idcc	Patent Administration And Licensing PatentAdministrationAndLicensing	34772000	USD
CY2018Q3	idcc	Patent Administration And Licensing PatentAdministrationAndLicensing	32077000	USD
	idcc	Patent Administration And Licensing PatentAdministrationAndLicensing	108196000	USD
	idcc	Patent Administration And Licensing PatentAdministrationAndLicensing	85480000	USD
CY2019Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	20506000	USD
CY2018Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	17276000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	56028000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	49279000	USD
CY2019Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	13471000	USD
CY2018Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	12806000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	40000000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	38569000	USD
CY2019Q3	us-gaap	Costs And Expenses CostsAndExpenses	68749000	USD
CY2018Q3	us-gaap	Costs And Expenses CostsAndExpenses	62159000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	204224000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	173328000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	3774000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	12920000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	12539000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	58750000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	10920000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	9039000	USD
	us-gaap	Interest Expense InterestExpense	30305000	USD
	us-gaap	Interest Expense InterestExpense	27242000	USD
CY2019Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	7803000	USD
CY2018Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-4914000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	23772000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	2106000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	657000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1033000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	6006000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	33614000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-178000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-21143000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3007000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-25001000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	835000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	20110000	USD
	us-gaap	Profit Loss ProfitLoss	2999000	USD
	us-gaap	Profit Loss ProfitLoss	58615000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1399000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1642000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-4175000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-4333000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	2234000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	21752000	USD
	us-gaap	Net Income Loss NetIncomeLoss	7174000	USD
	us-gaap	Net Income Loss NetIncomeLoss	62948000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.81
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31130000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34651000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31757000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34687000	shares
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31308000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35607000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32010000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35614000	shares
CY2019Q3	us-gaap	Profit Loss ProfitLoss	835000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	20110000	USD
	us-gaap	Profit Loss ProfitLoss	2999000	USD
	us-gaap	Profit Loss ProfitLoss	58615000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	245000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	467000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2366000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-904000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1080000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	20577000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	5365000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	57711000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-1399000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-1642000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-4175000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-4333000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2479000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	22219000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9540000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	62044000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	873148000	USD
CY2018Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	161252000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	30230000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1501000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1747000	USD
CY2018Q1	us-gaap	Dividends Dividends	12165000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-8277000	USD
CY2018Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	816000	USD
CY2018Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	6024000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1035732000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	10966000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1190000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	376000	USD
CY2018Q2	us-gaap	Dividends Dividends	12153000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	3931000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-111000	USD
CY2018Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1821000	USD
CY2018Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	3148000	USD
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1036224000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	21752000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1642000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	467000	USD
CY2018Q3	us-gaap	Dividends Dividends	11997000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2432000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-91000	USD
CY2018Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2239000	USD
CY2018Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	34335000	USD
CY2018Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1015049000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	938013000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-2803000	USD
CY2019Q1	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	12834000	USD
CY2019Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1411000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1045000	USD
CY2019Q1	us-gaap	Dividends Dividends	11180000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-4097000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2096000	USD
CY2019Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	108986000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	825513000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	7743000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1076000	USD
CY2019Q2	us-gaap	Dividends Dividends	10895000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-40000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2116000	USD
CY2019Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	62283000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	56917000	USD
CY2019Q2	idcc	Net Convertible Note Hedge Transactions Netof Tax NetConvertibleNoteHedgeTransactionsNetofTax	49740000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	43416000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-1569000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Subsequent Adjustments AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments	10649000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	800240000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	2234000	USD
CY2019Q3	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	11250000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1399000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	245000	USD
CY2019Q3	us-gaap	Dividends Dividends	10897000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-179000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1805000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	803299000	USD
	us-gaap	Profit Loss ProfitLoss	2999000	USD
	us-gaap	Profit Loss ProfitLoss	58615000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	56907000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	47024000	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	13586000	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	10684000	USD
	idcc	Non Cash Changein Fair Value NonCashChangeinFairValue	710000	USD
	idcc	Non Cash Changein Fair Value NonCashChangeinFairValue	0	USD
	idcc	Gain Loss On Asset Acquisition And Disposition Of Business GainLossOnAssetAcquisitionAndDispositionOfBusiness	22690000	USD
	idcc	Gain Loss On Asset Acquisition And Disposition Of Business GainLossOnAssetAcquisitionAndDispositionOfBusiness	0	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	875000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	9822000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-5488000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8014000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-27673000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	6017000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4875000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	3312000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	200000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-119000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-8176000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	623000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-2000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-11659000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-36861000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2181000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	63783000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2547000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	5640000	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	6428000	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-5618000	USD
	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-1315000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	176617000	USD
	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	91796000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	71976000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	92270000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	142562000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	355649000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	317447000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3062000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1882000	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	10000000	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
	idcc	Capitalized Patent Costs CapitalizedPatentCosts	26123000	USD
	idcc	Capitalized Patent Costs CapitalizedPatentCosts	23845000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	2250000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	142985000	USD
	us-gaap	Payments To Acquire Longterm Investments PaymentsToAcquireLongtermInvestments	0	USD
	us-gaap	Payments To Acquire Longterm Investments PaymentsToAcquireLongtermInvestments	6686000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	244194000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2763000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6362000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	221091000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	400000000	USD
	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
	idcc	Purchaseof Convertible Bond Hedge PurchaseofConvertibleBondHedge	72000000	USD
	idcc	Purchaseof Convertible Bond Hedge PurchaseofConvertibleBondHedge	0	USD
	idcc	Payment For Warrant Unwind PaymentForWarrantUnwind	4184000	USD
	idcc	Payment For Warrant Unwind PaymentForWarrantUnwind	0	USD
	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	10763000	USD
	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
	idcc	Proceeds From Hedge Unwind ProceedsFromHedgeUnwind	9038000	USD
	idcc	Proceeds From Hedge Unwind ProceedsFromHedgeUnwind	0	USD
	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	47600000	USD
	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	8375000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	10333000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	33683000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	36472000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4316000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8479000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	171269000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	43508000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-58708000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-82097000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	257462000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	91757000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	488733000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	433014000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	746195000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	524771000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="line-height:120%;padding-top:16px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Reclassifications</span></div><div style="line-height:120%;padding-bottom:8px;padding-top:8px;text-align:left;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Certain reclassifications have been made to prior year amounts to conform to the current year presentation.</span></div>
	us-gaap	Interest Paid Net InterestPaidNet	3930000	USD
	us-gaap	Interest Paid Net InterestPaidNet	4740000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	16483000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	24459000	USD
CY2019Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	10897000	USD
CY2018Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	11996000	USD
	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	13750000	USD
	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	22500000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	0	USD
	idcc	Increase Decrease In Capital And Intangible Asset Expenditures Incurred But Not Yet Paid IncreaseDecreaseInCapitalAndIntangibleAssetExpendituresIncurredButNotYetPaid	-390000	USD
	idcc	Increase Decrease In Capital And Intangible Asset Expenditures Incurred But Not Yet Paid IncreaseDecreaseInCapitalAndIntangibleAssetExpendituresIncurredButNotYetPaid	1513000	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13634000	USD
CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	16587000	USD
CY2019Q1	idcc	Lease Right Of Use Asset LeaseRightOfUseAsset	13634000	USD
CY2019Q3	idcc	Lease Right Of Use Asset LeaseRightOfUseAsset	16587000	USD
CY2019Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3519000	USD
CY2019Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3624000	USD
CY2019Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	13652000	USD
CY2019Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	15867000	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	17171000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	19491000	USD
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	1210000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3325000	USD
CY2019Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	211000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	731000	USD
CY2019Q3	us-gaap	Variable Lease Cost VariableLeaseCost	362000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	1054000	USD
CY2019Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	1400000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	3800000	USD
CY2019Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5500000	USD
CY2019Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y7M6D
CY2019Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.062
CY2019Q3	idcc	Lessee Operating Lease Lease Not Yet Commenced Liability LesseeOperatingLeaseLeaseNotYetCommencedLiability	10000000.0	USD
CY2019Q3	us-gaap	Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1 LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1	P10Y9M18D
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	1348000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4440000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3934000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3965000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3229000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	6310000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	23226000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3735000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	19491000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	5362000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3386000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	2883000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	2920000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	2184000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	5582000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	72523000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	75079000	USD
CY2019Q3	idcc	Increase Decreasein Disaggregated Revenue IncreaseDecreaseinDisaggregatedRevenue	-2556000	USD
CY2019Q3	idcc	Percentage Increase Decreasein Disaggregated Revenue PercentageIncreaseDecreaseinDisaggregatedRevenue	-0.03
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	216763000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	232078000	USD
	idcc	Increase Decreasein Disaggregated Revenue IncreaseDecreaseinDisaggregatedRevenue	-15315000	USD
	idcc	Percentage Increase Decreasein Disaggregated Revenue PercentageIncreaseDecreaseinDisaggregatedRevenue	-0.07
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	120300000	USD
CY2019Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	14400000	USD
CY2019Q3	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	1300000	USD
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	63736000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	19700000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	5500000	USD
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	248250000	USD
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	178583000	USD
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	85228000	USD
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	0	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.501
	idcc	Estimated Annual Effective Tax Rate EstimatedAnnualEffectiveTaxRate	-0.253
	idcc	Discrete Tax Expense DiscreteTaxExpense	3100000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.744
	idcc	Estimated Annual Effective Tax Rate EstimatedAnnualEffectiveTaxRate	-0.197
CY2019Q3	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	200000	USD
CY2018Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	1500000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	2234000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	2234000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	21752000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	21752000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31130000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31130000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34651000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34651000	shares
CY2019Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	178000	shares
CY2018Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	956000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31308000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35607000	shares
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2019Q3	idcc	Dilutive Securities Effect On Basic Earnings Per Share Per Share DilutiveSecuritiesEffectOnBasicEarningsPerSharePerShare	0
CY2018Q3	idcc	Dilutive Securities Effect On Basic Earnings Per Share Per Share DilutiveSecuritiesEffectOnBasicEarningsPerSharePerShare	0.02
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31757000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34687000	shares
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
	us-gaap	Net Income Loss NetIncomeLoss	7174000	USD
	us-gaap	Net Income Loss NetIncomeLoss	7174000	USD
	us-gaap	Net Income Loss NetIncomeLoss	62948000	USD
	us-gaap	Net Income Loss NetIncomeLoss	62948000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31757000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34687000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	253000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	927000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32010000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35614000	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.81
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.81
	idcc	Dilutive Securities Effect On Basic Earnings Per Share Per Share DilutiveSecuritiesEffectOnBasicEarningsPerSharePerShare	0.01
	idcc	Dilutive Securities Effect On Basic Earnings Per Share Per Share DilutiveSecuritiesEffectOnBasicEarningsPerSharePerShare	0.04
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2019Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	12675000	shares
CY2018Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4483000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	10592000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4448000	shares
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	232078000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	21752000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	75079000	USD
	us-gaap	Net Income Loss NetIncomeLoss	62948000	USD
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2019Q2	idcc	Gain Loss On Asset Acquisition GainLossOnAssetAcquisition	14200000	USD
CY2019Q3	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	10000000.0	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	8500000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	735886000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	475056000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	508829000	USD
CY2019Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	9229000	USD
CY2018Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	13677000	USD
CY2018Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	15942000	USD
CY2019Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1080000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	0	USD
CY2018Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	0	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	488733000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	524771000	USD
CY2019Q3	us-gaap	Commercial Paper CommercialPaper	0	USD
CY2019Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	957932000	USD
CY2018Q4	us-gaap	Commercial Paper CommercialPaper	14548000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	959457000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	746195000	USD
CY2018Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	19800000	USD
CY2018Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	19800000	USD
CY2019Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	3300000	USD
CY2019Q2	idcc	Convertible Note Hedge Value ConvertibleNoteHedgeValue	72000000.0	USD
CY2019Q2	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	109.43
CY2019Q2	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	47600000	USD
CY2019Q2	idcc	Call Spread Transactions Net CallSpreadTransactionsNet	24400000	USD
CY2019Q2	idcc	Useof Proceeds Repaymentof Long Term Debt UseofProceedsRepaymentofLongTermDebt	232700000	USD
CY2019Q2	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	221100000	USD
CY2019Q2	idcc	Useof Proceeds Repurchasesof Common Stock UseofProceedsRepurchasesofCommonStock	19600000	USD
CY2019Q2	idcc	Useof Proceeds Repurchasesof Common Stock Price Per Share UseofProceedsRepurchasesofCommonStockPricePerShare	62.53
CY2019Q2	idcc	Call Spread Transactions Net CallSpreadTransactionsNet	24400000	USD
CY2019Q2	idcc	Useof Proceeds Repaymentof Long Term Debt UseofProceedsRepaymentofLongTermDebt	232700000	USD
CY2019Q2	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	221100000	USD
	idcc	Unwind Transactions Shares UnwindTransactionsShares	1300000	shares
CY2019Q2	idcc	Proceeds From Hedge Unwind ProceedsFromHedgeUnwind	9000000.0	USD
CY2019Q2	idcc	Payment For Warrant Unwind PaymentForWarrantUnwind	4200000	USD
CY2019Q2	idcc	Proceeds For Combined Unwind Transactions Net ProceedsForCombinedUnwindTransactionsNet	4900000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-5500000	USD
CY2019Q2	idcc	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Subsequent Adjustments Before Tax AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustmentsBeforeTax	13000000.0	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Subsequent Adjustments AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments	10600000	USD
CY2019Q3	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	2356000	USD
CY2018Q3	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	1185000	USD
CY2019Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	4092000	USD
CY2018Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3124000	USD
CY2019Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	380000	USD
CY2018Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	347000	USD
CY2019Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	6828000	USD
CY2018Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	4656000	USD
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	5068000	USD
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	3555000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	10928000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	9252000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1091000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1042000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	17087000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	13849000	USD
CY2019Q3	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	41300000	USD
CY2019Q3	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	3800000	USD
CY2018Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	29900000	USD
CY2018Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	6100000	USD
CY2019Q3	us-gaap	Interest And Other Income InterestAndOtherIncome	3684000	USD
CY2018Q3	us-gaap	Interest And Other Income InterestAndOtherIncome	3740000	USD
	us-gaap	Interest And Other Income InterestAndOtherIncome	11173000	USD
	us-gaap	Interest And Other Income InterestAndOtherIncome	11013000	USD
CY2019Q3	idcc	Gain Loss On Asset Acquisition And Disposition Of Business GainLossOnAssetAcquisitionAndDispositionOfBusiness	8515000	USD
CY2018Q3	idcc	Gain Loss On Asset Acquisition And Disposition Of Business GainLossOnAssetAcquisitionAndDispositionOfBusiness	0	USD
	idcc	Gain Loss On Asset Acquisition And Disposition Of Business GainLossOnAssetAcquisitionAndDispositionOfBusiness	22690000	USD
	idcc	Gain Loss On Asset Acquisition And Disposition Of Business GainLossOnAssetAcquisitionAndDispositionOfBusiness	0	USD
CY2019Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-5488000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019Q3	us-gaap	Other Income OtherIncome	-4396000	USD
CY2018Q3	us-gaap	Other Income OtherIncome	-8654000	USD
	us-gaap	Other Income OtherIncome	-4603000	USD
	us-gaap	Other Income OtherIncome	-8907000	USD
CY2019Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	7803000	USD
CY2018Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-4914000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	23772000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	2106000	USD
	idcc	Gain Loss On Asset Acquisition GainLossOnAssetAcquisition	14200000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	8500000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-5500000	USD
CY2019Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	3300000	USD
CY2018Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-8400000	USD

Files In Submission

Name	View Source	Status
0001405495-19-000049-index-headers.html	Edgar Link	pending
0001405495-19-000049-index.html	Edgar Link	pending
0001405495-19-000049.txt	Edgar Link	pending
0001405495-19-000049-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
idcc-20190930.xsd	Edgar Link	pending
idcc-20190930_cal.xml	Edgar Link	unprocessable
idcc-20190930_def.xml	Edgar Link	unprocessable
idcc-20190930_lab.xml	Edgar Link	unprocessable
idcc-20190930_pre.xml	Edgar Link	unprocessable
idcc-2019930x10qxq3ex311.htm	Edgar Link	pending
idcc-2019930x10qxq3ex312.htm	Edgar Link	pending
idcc-2019930x10qxq3ex321.htm	Edgar Link	pending
idcc-2019930x10qxq3ex322.htm	Edgar Link	pending
idcc-q393019.htm	Edgar Link	pending
idcc-q393019_htm.xml	Edgar Link	completed
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$IDCC
InterDigital, Inc. Stock $idcc

2019 Q4 Form 10-Q Financial Statement

#000140549519000049 Filed on October 31, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDCC InterDigital, Inc. Stock $idcc

2019 Q4 Form 10-Q Financial Statement

#000140549519000049 Filed on October 31, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDCC
InterDigital, Inc. Stock $idcc