$ACTG
ACACIA RESEARCH CORP Stock $actg

$actg Overview Financials Valuation SEC Filings Company Website

2019 Q1 Form 10-K Financial Statement

#000093454919000017 Filed on March 15, 2019

Income Statement

Concept	2019 Q1	2018 Q4	2018 Q3
Revenue	$3.387M	$49.20M	$13.73M
YoY Change	-94.55%	1322.87%	-62.53%
Cost Of Revenue	$1.350M	$11.00M	$1.180M
YoY Change	-93.79%	109900.0%
Gross Profit	$2.030M	$38.20M	$12.54M
YoY Change	-94.97%	1007.25%	-65.77%
Gross Profit Margin	59.94%	77.64%	91.37%
Selling, General & Admin	$3.830M	$13.92M	$9.040M
YoY Change	-79.99%	4390.32%	-63.68%
% of Gross Profit	188.67%	36.44%	72.09%
Research & Development			$80.00K
YoY Change			-66.67%
% of Gross Profit			0.64%
Depreciation & Amortization	$660.0K	$11.50M	$5.000M
YoY Change	-87.65%	112.96%	-12.28%
% of Gross Profit	32.51%	30.1%	39.87%
Operating Expenses	$5.140M	$24.30M	$16.28M
YoY Change	-79.13%	239.86%	-47.07%
Operating Profit	-$6.945M	$10.02M	-$4.963M
YoY Change	-177.42%	-236.67%	1022.85%
Interest Expense	$2.820M	-$21.11M	-$27.60M
YoY Change	-106.9%	-79.41%	-117.37%
% of Operating Profit		-210.72%
Other Income/Expense, Net	$2.861M	-$20.99M	-$27.60M
YoY Change	-107.0%	-79.61%	-117.35%
Pretax Income	-$4.084M	-$10.97M	-$32.56M
YoY Change	-87.21%	-90.05%	-120.53%
Income Tax	$314.0K	$397.0K	$306.0K
% Of Pretax Income
Net Earnings	-$4.384M	-$11.37M	-$33.20M
YoY Change	-86.32%	-89.68%	-120.95%
Net Earnings / Revenue	-129.44%	-23.11%	-241.86%
Basic Earnings Per Share	-$0.09		-$0.67
Diluted Earnings Per Share	-$88.20K	-$229.0K	-$0.67
COMMON SHARES
Basic Shares Outstanding	49.65M shares	49.64M shares	49.56M shares
Diluted Shares Outstanding		49.64M shares	49.56M shares

Balance Sheet

Concept	2019 Q1	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$167.0M	$162.5M	$140.4M
YoY Change	-6.99%	18.92%	-11.48%
Cash & Equivalents	$73.29M	$128.8M	$109.6M
Short-Term Investments	$93.76M	$33.64M	$30.84M
Other Short-Term Assets	$3.700M	$3.100M	$3.100M
YoY Change	-2.63%	6.9%	-11.43%
Inventory
Prepaid Expenses
Receivables	$23.96M	$32.88M	$10.57M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$195.5M	$201.5M	$157.1M
YoY Change	3.89%	44.22%	-3.25%
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$8.195M	$8.195M	$8.195M
YoY Change	0.0%	273.35%	258.8%
Other Assets	$216.0K	$236.0K	$183.0K
YoY Change	-81.89%	14.01%	-52.09%
Total Long-Term Assets	$23.58M	$22.48M	$63.17M
YoY Change	-81.81%	-86.71%	-77.34%
TOTAL ASSETS
Total Short-Term Assets	$195.5M	$201.5M	$157.1M
Total Long-Term Assets	$23.58M	$22.48M	$63.17M
Total Assets	$219.1M	$223.9M	$220.3M
YoY Change	-31.07%	-27.47%	-50.07%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$11.40M	$8.300M	$9.100M
YoY Change	26.67%	3.75%	18.18%
Accrued Expenses	$3.800M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$31.35M	$31.04M	$16.26M
YoY Change	-36.0%	224.74%	-40.9%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$916.0K	$1.674M	$1.874M
YoY Change	-49.25%	-52.87%	-78.59%
Total Long-Term Liabilities	$916.0K	$1.674M	$1.874M
YoY Change	-49.25%	-52.87%	-78.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$31.35M	$31.04M	$16.26M
Total Long-Term Liabilities	$916.0K	$1.674M	$1.874M
Total Liabilities	$32.26M	$32.71M	$18.13M
YoY Change	-36.47%	149.52%	-50.0%
SHAREHOLDERS EQUITY
Retained Earnings	-$426.9M	-$422.5M	-$411.2M
YoY Change	34.46%	32.04%	95.97%
Common Stock	$50.00K	$50.00K	$50.00K
YoY Change	-1.96%	-1.96%	-1.96%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$39.27M	$39.27M	$39.27M
YoY Change	13.37%	13.37%	13.37%
Treasury Stock Shares	2.920M shares	2.920M shares	2.920M shares
Shareholders Equity	$185.0M	$189.4M	$200.3M
YoY Change
Total Liabilities & Shareholders Equity	$219.1M	$223.9M	$220.3M
YoY Change	-31.07%	-27.47%	-50.07%

Cashflow Statement

Concept	2019 Q1	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	-$4.384M	-$11.37M	-$33.20M
YoY Change	-86.32%	-89.68%	-120.95%
Depreciation, Depletion And Amortization	$660.0K	$11.50M	$5.000M
YoY Change	-87.65%	112.96%	-12.28%
Cash From Operating Activities	-$58.81M	$13.40M	-$2.100M
YoY Change	-217.69%	-161.19%	-105.22%
INVESTING ACTIVITIES
Capital Expenditures	$6.000K	$0.00
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$53.60M	$5.900M	$11.60M
YoY Change	47.66%	-89.72%	-583.33%
Cash From Investing Activities	$3.288M	$5.800M	$11.60M
YoY Change	-109.06%	-89.9%	-583.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00
YoY Change	-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$0.00	0.000	0.000
YoY Change	-100.0%	-100.0%
NET CHANGE
Cash From Operating Activities	-$58.81M	13.40M	-2.100M
Cash From Investing Activities	$3.288M	5.800M	11.60M
Cash From Financing Activities	$0.00	0.000	0.000
Net Change In Cash	-$55.52M	19.20M	9.500M
YoY Change	-505.73%	-46.07%	-74.87%
FREE CASH FLOW
Cash From Operating Activities	-$58.81M	$13.40M	-$2.100M
Capital Expenditures	$6.000K	$0.00
Free Cash Flow	-$58.82M	$13.40M
YoY Change	-217.71%	-161.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Entity Registrant Name EntityRegistrantName	ACACIA RESEARCH CORP
CY2018Q2	dei	Entity Public Float EntityPublicFloat	203206000	USD
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0000934549
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	49647693	shares
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	true
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50639926	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	49639319	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	50639926	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	49639319	shares
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1729408	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2919828	shares
CY2018	us-gaap	Revenues Revenues	131506000	USD
CY2017	us-gaap	Revenues Revenues	65402000	USD
CY2018	us-gaap	Royalty Expense RoyaltyExpense	35168000	USD
CY2018	actg	Contingent Legal Fees ContingentLegalFees	31501000	USD
CY2018	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	8866000	USD
CY2017	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	18219000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	27120000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	22154000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	18850000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27219000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1179000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2955000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	128809000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	136604000	USD
CY2018Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	33642000	USD
CY2017Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	0	USD
CY2018Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	3012000	USD
CY2017Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	0	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	32884000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	153000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3125000	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2938000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	201472000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	139695000	USD
CY2018Q4	actg	Investmentsatfairvalue Investmentsatfairvalue	7459000	USD
CY2017Q4	actg	Investmentsatfairvalue Investmentsatfairvalue	104754000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	8195000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2195000	USD
CY2018Q4	actg	Patents Net Of Accumulated Amortization PatentsNetOfAccumulatedAmortization	6587000	USD
CY2017Q4	actg	Patents Net Of Accumulated Amortization PatentsNetOfAccumulatedAmortization	61917000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	236000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	207000	USD
CY2018Q4	us-gaap	Assets Assets	223949000	USD
CY2017Q4	us-gaap	Assets Assets	308768000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	8347000	USD
CY2017Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	7956000	USD
CY2018Q4	actg	Royalties And Contingent Legal Fees Payable RoyaltiesAndContingentLegalFeesPayable	22688000	USD
CY2017Q4	actg	Royalties And Contingent Legal Fees Payable RoyaltiesAndContingentLegalFeesPayable	1601000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	31035000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	9557000	USD
CY2018Q4	us-gaap	Other Liabilities OtherLiabilities	1674000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	3552000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	32709000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	13109000	USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	50000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	51000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	39272000	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	34640000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	27120000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	1358000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	223949000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	308768000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	191240000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	295659000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	651156000	USD
CY2017Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	648996000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-88000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-422541000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-320018000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	189393000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	294301000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	1847000	USD
CY2018	us-gaap	Revenues Revenues	131506000	USD
CY2017	us-gaap	Revenues Revenues	65402000	USD
CY2018	us-gaap	Royalty Expense RoyaltyExpense	35168000	USD
CY2017	us-gaap	Royalty Expense RoyaltyExpense	4952000	USD
CY2018	actg	Contingent Legal Fees ContingentLegalFees	31501000	USD
CY2017	actg	Contingent Legal Fees ContingentLegalFees	16682000	USD
CY2018	actg	Patentacquisitionexpenses Patentacquisitionexpenses	4000000	USD
CY2017	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2018	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	8866000	USD
CY2017	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	18219000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	18850000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27219000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-24811000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	22154000	USD
CY2018	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	28210000	USD
CY2017	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	2248000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2602000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1200000	USD
CY2018	actg	Total Portfolio Operations TotalPortfolioOperations	137467000	USD
CY2017	actg	Total Portfolio Operations TotalPortfolioOperations	65455000	USD
CY2018	actg	Netportfolioincomeloss Netportfolioincomeloss	-5961000	USD
CY2017	actg	Netportfolioincomeloss Netportfolioincomeloss	-53000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	-27272000	USD
CY2018	actg	Changeinfairvalueofinvestment Changeinfairvalueofinvestment	-59103000	USD
CY2017	actg	Changeinfairvalueofinvestment Changeinfairvalueofinvestment	42239000	USD
CY2018	actg	Gainon Conversionof Loanand Accrued Interest GainonConversionofLoanandAccruedInterest	0	USD
CY2017	actg	Gainon Conversionof Loanand Accrued Interest GainonConversionofLoanandAccruedInterest	2671000	USD
CY2018	actg	Gainonexerciseof Primary Warrant GainonexerciseofPrimaryWarrant	0	USD
CY2017	actg	Gainonexerciseof Primary Warrant GainonexerciseofPrimaryWarrant	4616000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-220000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1629000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1000000	USD
CY2018	us-gaap	Interest Income Other InterestIncomeOther	969000	USD
CY2017	us-gaap	Interest Income Other InterestIncomeOther	1605000	USD
CY2018	us-gaap	Interest And Other Income InterestAndOtherIncome	-78858000	USD
CY2017	us-gaap	Interest And Other Income InterestAndOtherIncome	51911000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-103669000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	24639000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1179000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2955000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-104848000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	21684000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	181000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-496000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-105029000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	22180000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-105029000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22147000	USD
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.10
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.44
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49969062	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50495119	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49969062	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50692012	shares
CY2018	us-gaap	Profit Loss ProfitLoss	-104848000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	21684000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-40000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	88000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	58000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	30000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-104760000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	21672000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	181000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-496000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-104941000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	22168000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	267443000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	22180000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	745000	USD
CY2017	actg	Generalandadministrativeexpensesexcludingsharebasedcompensation Generalandadministrativeexpensesexcludingsharebasedcompensation	5844000	USD
CY2017	actg	Repurchaseofrestrictedcommonstock Repurchaseofrestrictedcommonstock	-45000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-496000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	28000	USD
CY2017	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-40000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	295659000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-105029000	USD
CY2018Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2814000	USD
CY2018Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	-4634000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	257000	USD
CY2018	actg	Generalandadministrativeexpensesexcludingsharebasedcompensation Generalandadministrativeexpensesexcludingsharebasedcompensation	2133000	USD
CY2018	actg	Repurchaseofrestrictedcommonstock Repurchaseofrestrictedcommonstock	-229000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	181000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	88000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	191240000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-104848000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	21684000	USD
CY2018	actg	Gainon Conversionof Loanand Accrued Interest GainonConversionofLoanandAccruedInterest	0	USD
CY2017	actg	Gainon Conversionof Loanand Accrued Interest GainonConversionofLoanandAccruedInterest	2671000	USD
CY2017	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	2248000	USD
CY2018	actg	Acceleratedamortizationexpenseterminationsale Acceleratedamortizationexpenseterminationsale	8307000	USD
CY2017	actg	Gainonexerciseof Primary Warrant GainonexerciseofPrimaryWarrant	4616000	USD
CY2018	actg	Changeinfairvalueofinvestment Changeinfairvalueofinvestment	-59103000	USD
CY2017	actg	Changeinfairvalueofinvestment Changeinfairvalueofinvestment	42239000	USD
CY2018	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	19095000	USD
CY2017	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	0	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	27145000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	22243000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	-317000	USD
CY2018	actg	Gainonexerciseof Primary Warrant GainonexerciseofPrimaryWarrant	0	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	8885000	USD
CY2018	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	28210000	USD
CY2017	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	2248000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	564000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-374000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-28189000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	26597000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-208000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-135000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	963000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-6349000	USD
CY2018	actg	Increase Decrease In Royalties And Contingent Legal Fees Payable IncreaseDecreaseInRoyaltiesAndContingentLegalFeesPayable	19359000	USD
CY2017	actg	Increase Decrease In Royalties And Contingent Legal Fees Payable IncreaseDecreaseInRoyaltiesAndContingentLegalFeesPayable	-12307000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	20877000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	12966000	USD
CY2018	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	7000000	USD
CY2017	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	31514000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Assets Investing Activities ProceedsFromSaleOfOtherAssetsInvestingActivities	19097000	USD
CY2017	us-gaap	Proceeds From Sale Of Other Assets Investing Activities ProceedsFromSaleOfOtherAssetsInvestingActivities	0	USD
CY2018	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2017	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	4000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	34000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	102769000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	448388000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	66640000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	467790000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-24066000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-16114000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4634000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	257000	USD
CY2016Q3	actg	Secured Convertible Promissory Note SecuredConvertiblePromissoryNote	20000000	USD
CY2017Q2	us-gaap	Debt Instrument Convertible Conversion Price1 DebtInstrumentConvertibleConversionPrice1	13.61
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	136604000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4606000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	700000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-7795000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-2448000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	745000	USD
CY2018	actg	Repurchaseofrestrictedcommonstock Repurchaseofrestrictedcommonstock	-229000	USD
CY2017	actg	Repurchaseofrestrictedcommonstock Repurchaseofrestrictedcommonstock	-45000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	139052000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	128809000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	136604000	USD
CY2017	actg	Numberofpatentportfoliosacquired Numberofpatentportfoliosacquired	1	patents
CY2016	actg	Numberofpatentportfoliosacquired Numberofpatentportfoliosacquired	2	patents
CY2018	us-gaap	Fiscal Period FiscalPeriod	Accounting Principles. The consolidated financial statements and accompanying notes are prepared on the accrual basis of accounting in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP").
CY2018	actg	Paid Up Revenues PaidUpRevenues	100496000	USD
CY2017	actg	Paid Up Revenues PaidUpRevenues	59020000	USD
CY2018	actg	Recurring Revenues RecurringRevenues	13040000	USD
CY2017	actg	Recurring Revenues RecurringRevenues	6382000	USD
CY2018	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	3470000	USD
CY2017	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	0	USD
CY2018	actg	Patent Sales PatentSales	14500000	USD
CY2017	actg	Patent Sales PatentSales	0	USD
CY2018	us-gaap	Revenues Revenues	131506000	USD
CY2017	us-gaap	Revenues Revenues	65402000	USD
CY2018Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	3012000	USD
CY2017Q4	us-gaap	Trading Securities Equity TradingSecuritiesEquity	0	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	104754000	USD
CY2017Q4	actg	Fair Valueof Profits Interest FairValueofProfitsInterest	3041000	USD
CY2018	actg	Noncashstockcompensationprofitsinterest Noncashstockcompensationprofitsinterest	-2450000	USD
CY2018	actg	Changeinfairvalueofinvestment Changeinfairvalueofinvestment	-59103000	USD
CY2018	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-19095000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	-19097000	USD
CY2018	actg	Investmentat Fair Value Purchasesand Issues InvestmentatFairValuePurchasesandIssues	-7459000	USD
CY2018Q4	actg	Fair Valueof Profits Interest FairValueofProfitsInterest	-591000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	0	USD
CY2018	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<br/><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Concentration of Credit Risks. </span><span style="font-family:inherit;font-size:10pt;">Financial instruments that potentially subject Acacia to concentrations of credit risk are cash equivalents, short-term investments and accounts receivable. Acacia places its cash equivalents and short-term investments primarily in highly rated money market funds and investment grade marketable securities. Cash and cash equivalents are also invested in deposits with certain financial institutions and may, at times, exceed federally insured limits. Acacia has not experienced any significant losses on its deposits of cash and cash equivalents.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Three licensees individually accounted for </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>45%</span></span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>17%</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>17%</span></span><span style="font-family:inherit;font-size:10pt;">, respectively, of revenues recognized during the year ended </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2018</span><span style="font-family:inherit;font-size:10pt;">. Three licensees individually accounted for </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>54%</span></span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>21%</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>10%</span></span><span style="font-family:inherit;font-size:10pt;">, respectively, of revenues recognized during the year ended </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2017</span><span style="font-family:inherit;font-size:10pt;">. Four licensees individually represented approximately </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>38%</span></span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>36%</span></span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;"><span>12%</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>11%</span></span><span style="font-family:inherit;font-size:10pt;">, respectively, of accounts receivable at </span><span style="font-family:inherit;font-size:10pt;">December 31, 2018</span><span style="font-family:inherit;font-size:10pt;">. One licensee individually represented </span><span style="font-family:inherit;font-size:10pt;"><span>100%</span></span><span style="font-family:inherit;font-size:10pt;"> of accounts receivable at </span><span style="font-family:inherit;font-size:10pt;">December 31, 2017</span><span style="font-family:inherit;font-size:10pt;">. </span></div><div style="line-height:120%;text-align:center;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">For </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2018 and 2017</span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>26%</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"><span>39%</span></span><span style="font-family:inherit;font-size:10pt;">, respectively, of revenues were attributable to licensees domiciled in foreign jurisdictions, based on the jurisdiction of the entity obligated to satisfy payment obligations pursuant to the applicable revenue arrangement. The Company does not have any material foreign operations. </span></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>Acacia performs credit evaluations of its licensees with significant receivable balances, if any, and has not experienced any significant credit losses. Accounts receivable are recorded at the executed contract amount and generally do not bear interest. Collateral is not required. An allowance for doubtful accounts may be established to reflect the Company’s best estimate of probable losses inherent in the accounts receivable balance, and is reflected as a contra-asset account on the balance sheet and a charge to operating expenses in the statements of operations for the applicable period. The allowance is determined based on known troubled accounts, historical experience, and other currently available evidence. There was no allowance for doubtful accounts established for the periods presented.
CY2018	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P4Y
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2559000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1671000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	811000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0226
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0177
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y4M13D
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y4M13D
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.51
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.51
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Dividend ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividend	0	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Dividend ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividend	0	USD
CY2018	us-gaap	Use Of Estimates UseOfEstimates	Use of Estimates<span style="font-family:inherit;font-size:10pt;">. The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. Acacia believes that, of the significant accounting policies described herein, the accounting policies associated with revenue recognition, the valuation of the loan and equity instruments discussed at Note </span><span style="font-family:inherit;font-size:10pt;">6</span><span style="font-family:inherit;font-size:10pt;">, stock-based compensation expense including the valuation of profits interests, impairment of patent-related intangible assets, the determination of the economic useful life of amortizable intangible assets, income taxes and valuation allowances against net deferred tax assets, require its most difficult, subjective or complex judgments.</span><br/>
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-105029000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	22180000	USD
CY2018	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	33000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-105029000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22147000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49969062	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50495119	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	196893	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49969062	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50692012	shares
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.10
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.44
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3129719	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4425187	shares
CY2018Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	33643000	USD
CY2018	us-gaap	Debt Securities Trading Unrealized Gain DebtSecuritiesTradingUnrealizedGain	18000	USD
CY2017	us-gaap	Debt Securities Trading Unrealized Loss DebtSecuritiesTradingUnrealizedLoss	19000	USD
CY2018Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	33642000	USD
CY2018Q4	us-gaap	Trading Securities Equity Cost TradingSecuritiesEquityCost	3389000	USD
CY2018	us-gaap	Trading Securities Unrealized Holding Gain TradingSecuritiesUnrealizedHoldingGain	27000	USD
CY2018	us-gaap	Trading Securities Unrealized Holding Loss TradingSecuritiesUnrealizedHoldingLoss	-404000	USD
CY2018Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	37032000	USD
CY2017	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	45000	USD
CY2017	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	423000	USD
CY2018Q4	actg	Patent Cost Disposals PatentCostDisposals	117970000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	811000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	735000	USD
CY2018	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	28210000	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	36654000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	65144000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	467790000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	1496000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	205000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	465000	USD
CY2018Q4	us-gaap	Accrued Vacation Current And Noncurrent AccruedVacationCurrentAndNoncurrent	144000	USD
CY2017Q4	us-gaap	Accrued Vacation Current And Noncurrent AccruedVacationCurrentAndNoncurrent	294000	USD
CY2018Q4	actg	Accrued Legal Expenses Patent AccruedLegalExpensesPatent	5974000	USD
CY2017Q4	actg	Accrued Legal Expenses Patent AccruedLegalExpensesPatent	5479000	USD
CY2018Q4	actg	Foreigntaxespayable Foreigntaxespayable	374000	USD
CY2017Q4	actg	Foreigntaxespayable Foreigntaxespayable	15000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1241000	USD
CY2017Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1364000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	409000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	339000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	8347000	USD
CY2017Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	7956000	USD
CY2017Q4	actg	Patent Cost Disposals PatentCostDisposals	0	USD
CY2018Q4	actg	Accumulated Amortization Disposals AccumulatedAmortizationDisposals	109663000	USD
CY2017Q4	actg	Accumulated Amortization Disposals AccumulatedAmortizationDisposals	0	USD
CY2018	actg	Patent Sales PatentSales	14500000	USD
CY2017	actg	Patent Sales PatentSales	0	USD
CY2018Q4	actg	Second Loan Warrant SecondLoanWarrant	154312	USD
CY2017Q2	us-gaap	Debt Instrument Convertible Conversion Price1 DebtInstrumentConvertibleConversionPrice1	13.61
CY2016Q3	actg	Maximum Investmentin Veritone MaximumInvestmentinVeritone	50000000	USD
CY2017Q2	us-gaap	Debt Instrument Convertible Conversion Price1 DebtInstrumentConvertibleConversionPrice1	13.61
CY2017Q2	actg	Primarywarrantshares Primarywarrantshares	2150335	shares
CY2017Q2	actg	Cashpaidforprimarywarrantexercise Cashpaidforprimarywarrantexercise	29300000	USD
CY2017Q2	actg	A10 Warrant A10Warrant	809400	shares
CY2017Q2	us-gaap	Debt Instrument Convertible Conversion Price1 DebtInstrumentConvertibleConversionPrice1	13.61
CY2016Q3	actg	Secured Promissory Note Advance SecuredPromissoryNoteAdvance	4000000.0	USD
CY2018Q4	actg	Bridge Installment Shares BridgeInstallmentShares	445440	shares
CY2017Q2	us-gaap	Debt Instrument Convertible Conversion Price1 DebtInstrumentConvertibleConversionPrice1	13.61
CY2017Q1	actg	Bridge Warrant Share BridgeWarrantShare	156720	shares
CY2017Q2	us-gaap	Debt Instrument Convertible Conversion Price1 DebtInstrumentConvertibleConversionPrice1	13.61
CY2018	actg	Fair Value Investment Sharessold FairValueInvestmentSharessold	2700000	shares
CY2018	actg	Gainon Conversionof Loanand Accrued Interest GainonConversionofLoanandAccruedInterest	0	USD
CY2017	actg	Gainon Conversionof Loanand Accrued Interest GainonConversionofLoanandAccruedInterest	2671000	USD
CY2018	actg	Gainonexerciseof Primary Warrant GainonexerciseofPrimaryWarrant	0	USD
CY2017	actg	Gainonexerciseof Primary Warrant GainonexerciseofPrimaryWarrant	4616000	USD
CY2018	actg	Lossonfairvalueinvestmentnet Lossonfairvalueinvestmentnet	-78198000	USD
CY2017	actg	Lossonfairvalueinvestmentnet Lossonfairvalueinvestmentnet	49526000	USD
CY2017	actg	Cash Paidfor Investment CashPaidforInvestment	2250000	USD
CY2018Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.226
CY2018	actg	Cash Paidfor Investment CashPaidforInvestment	6000000	USD
CY2018Q4	actg	Percentageofownership Miso Robotics PercentageofownershipMisoRobotics	0.30
CY2018	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	Monthly stock repurchases for the periods presented, all of which were purchased as part of a publicly announced plan or program, were as follows:<div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:96.97560975609755%;border-collapse:collapse;text-align:left;"><tr><td colspan="10"/></tr><tr><td style="width:34%;"/><td style="width:14%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:6%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:18%;"/><td style="width:1%;"/><td style="width:23%;"/></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Total Number of Shares Purchased</span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Average Price paid per Share</span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;text-align:center;">Approximate Dollar Value of</span></div><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;text-align:center;">Shares that May Yet be</span></div><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;text-align:center;">Purchased under the Program</span></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Plan Expiration</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">May 1, 2018- May 30, 2018</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,190,420</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>3.89</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>15,366,000</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span><span style="white-space:nowrap">February 28, 2019</span></span></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Totals for 2018</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,190,420</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>3.89</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td colspan="3" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr></table></div>
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1190420	shares
CY2018	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	3.89
CY2018Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	15366000	USD
CY2018	us-gaap	Stock Repurchase Program Expiration Date StockRepurchaseProgramExpirationDate	2019-02-28
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1190420	shares
CY2018	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	3.89
CY2018Q4	actg	Beneficial Ownership Percentage Limit BeneficialOwnershipPercentageLimit	0.049
CY2018Q4	actg	Beneficial Ownership Percentage Limit BeneficialOwnershipPercentageLimit	0.049
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	87000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	90000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1092000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2865000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1179000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2955000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1179000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2955000	USD
CY2018Q4	actg	Deferred Tax Asset Operating And Capital Loss Carryforwards And Credits DeferredTaxAssetOperatingAndCapitalLossCarryforwardsAndCredits	104862000	USD
CY2017Q4	actg	Deferred Tax Asset Operating And Capital Loss Carryforwards And Credits DeferredTaxAssetOperatingAndCapitalLossCarryforwardsAndCredits	90871000	USD
CY2018Q4	actg	Deferred Tax Assets Unrealized Losson Investment DeferredTaxAssetsUnrealizedLossonInvestment	2455000	USD
CY2017Q4	actg	Deferred Tax Assets Unrealized Losson Investment DeferredTaxAssetsUnrealizedLossonInvestment	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1365000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2635000	USD
CY2018Q4	actg	Deferredtaxassetsintangiblesandfixedassets Deferredtaxassetsintangiblesandfixedassets	3330000	USD
CY2017Q4	actg	Deferredtaxassetsintangiblesandfixedassets Deferredtaxassetsintangiblesandfixedassets	6197000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	286000	USD
CY2018Q4	actg	Foreign Tax Credits Additional Paid In Capital Benefit ForeignTaxCreditsAdditionalPaidInCapitalBenefit	51508000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	2455000	USD
CY2018	actg	Effectivetaxrateexcludingvaluationallowance Effectivetaxrateexcludingvaluationallowance	0.19
CY2017	actg	Effectivetaxrateexcludingvaluationallowance Effectivetaxrateexcludingvaluationallowance	0.47
CY2018Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	26000	USD
CY2017Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	35000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	112532000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	167000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	984000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	208000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	100889000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	112532000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	90278000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	10611000	USD
CY2018Q4	actg	Deferred Tax Liabilities Fixed Assets And Intangibles DeferredTaxLiabilitiesFixedAssetsAndIntangibles	0	USD
CY2017Q4	actg	Deferred Tax Liabilities Fixed Assets And Intangibles DeferredTaxLiabilitiesFixedAssetsAndIntangibles	10587000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	18000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	24000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	18000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	10611000	USD
CY2018Q4	actg	Deferred Tax Liabilities Net Of Deferred Tax Assets DeferredTaxLiabilitiesNetOfDeferredTaxAssets	18000	USD
CY2017Q4	actg	Deferred Tax Liabilities Net Of Deferred Tax Assets DeferredTaxLiabilitiesNetOfDeferredTaxAssets	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.01
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.08
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.01
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.01
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.03
CY2018Q4	actg	Operating Loss Carryforwards Federal OperatingLossCarryforwardsFederal	222861000	USD
CY2018Q4	actg	Operating Loss Carryforwards State OperatingLossCarryforwardsState	19471000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	1.02
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.20
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-1.37
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.01
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.12
CY2018Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	10587000	USD
CY2018Q4	actg	Federal Deferred Tax Asset Impactof Asu201609 FederalDeferredTaxAssetImpactofASU201609	21350000	USD
CY2018Q4	actg	State Deferred Tax Asset Impactof Asu201609 StateDeferredTaxAssetImpactofASU201609	1559000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	808000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	808000	USD
CY2018Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	actg	Deferred Tax Asset Revaluation DeferredTaxAssetRevaluation	25261000	USD
CY2018	actg	Ownership Percent Of Voting Stock OwnershipPercentOfVotingStock	0.10
CY2018Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	7938000	shares
CY2018	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Total Grants Duringthe Period SharebasedCompensationArrangementbySharebasedPaymentAwardTotalGrantsDuringthePeriod	1032000000	shares
CY2018	actg	Sharebased Compensation Arrangementby Sharebased Payment Award All Grants Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardAllGrantsFairValue	1974000	USD
CY2017	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Total Grants Duringthe Period SharebasedCompensationArrangementbySharebasedPaymentAwardTotalGrantsDuringthePeriod	1368000000	shares
CY2017	actg	Sharebased Compensation Arrangementby Sharebased Payment Award All Grants Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardAllGrantsFairValue	2930000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5830000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.13
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	930000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	3.91
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	83000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	3.12
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-3168000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	5.00
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3509000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	4.96
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y1M6D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	2339000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	4.82
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P3Y2M12D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	0	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	296000	USD
CY2018	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Options Vested Duringthe Period Aggregate Intrinsic Value SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsVestedDuringthePeriodAggregateIntrinsicValue	0	USD
CY2018	actg	Sharebased Compensation Arrangmentby Sharebased Payment Award Options Granted Fair Value SharebasedCompensationArrangmentbySharebasedPaymentAwardOptionsGrantedFairValue	1588000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	1918000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2339000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	4.82
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y2M12D
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	51000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	123000	shares
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	2009000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	4.77
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	102000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.79
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	225000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	4.32
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	0	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	0
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	0	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	0
CY2017Q4	actg	Sharebased Compensation Arrangement Restricted Stock Units Nonvested SharebasedCompensationArrangementRestrictedStockUnitsNonvested	2000	shares
CY2017Q4	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsNonvestedWeightedAverageGrantDateFairValue	16.72
CY2018	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Vested During Period SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsVestedDuringPeriod	-2000	shares
CY2018	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Vestedin Period Weighted Average Grant Date Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsVestedinPeriodWeightedAverageGrantDateFairValue	16.72
CY2018Q4	actg	Sharebased Compensation Arrangement Restricted Stock Units Nonvested SharebasedCompensationArrangementRestrictedStockUnitsNonvested	0	shares
CY2018Q4	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsNonvestedWeightedAverageGrantDateFairValue	0
CY2018Q4	actg	Sharebased Awards Restricted Stock Units Vested Oustanding SharebasedAwardsRestrictedStockUnitsVestedOustanding	31000	shares
CY2018Q4	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Weighted Average Grant Date Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsWeightedAverageGrantDateFairValue	15.43
CY2018	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Grantsin Period Weighted Average Grant Date Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsGrantsinPeriodWeightedAverageGrantDateFairValue	0
CY2018	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Vestedin Period Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsVestedinPeriodFairValue	40000	USD
CY2017	actg	Sharebased Compensation Arrangementby Sharebased Payment Award Restricted Stock Units Vestedin Period Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardRestrictedStockUnitsVestedinPeriodFairValue	200000	USD
CY2017Q1	actg	Beneficial Ownership Percentage Limit BeneficialOwnershipPercentageLimit	0.60
CY2017Q1	actg	Fair Valueof Profits Interest FairValueofProfitsInterest	722000	USD
CY2018Q4	actg	Fair Valueof Profits Interest FairValueofProfitsInterest	-591000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	-317000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	8885000	USD
CY2017Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	153000	USD
CY2018Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	4695000	USD
CY2017Q4	actg	Royalties And Contingent Legal Fees Payable RoyaltiesAndContingentLegalFeesPayable	1601000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	599000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	89000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	688000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1106000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1392000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2602000	USD
CY2018	us-gaap	Severance Costs1 SeveranceCosts1	2458000	USD
CY2017	us-gaap	Severance Costs1 SeveranceCosts1	1421000	USD
CY2018	actg	Cash Paid For State Income Taxes CashPaidForStateIncomeTaxes	140000	USD
CY2017	actg	Cash Paid For State Income Taxes CashPaidForStateIncomeTaxes	181000	USD
CY2018	actg	Foreign Withholding Taxes ForeignWithholdingTaxes	1093000	USD
CY2017	actg	Foreign Withholding Taxes ForeignWithholdingTaxes	2865000	USD
CY2018Q1	actg	Royalties And Contingent Legal Fees Payable RoyaltiesAndContingentLegalFeesPayable	3329000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-320018000	USD
CY2018Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-317512000	USD
CY2017Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	1358000	USD
CY2018Q1	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	1666000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	32884000	USD
CY2018Q4	actg	Royalties And Contingent Legal Fees Payable RoyaltiesAndContingentLegalFeesPayable	22688000	USD
CY2018	us-gaap	Revenues Revenues	131506000	USD
CY2018	us-gaap	Royalty Expense RoyaltyExpense	35168000	USD
CY2018	actg	Contingent Legal Fees ContingentLegalFees	31501000	USD
CY2018	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	976000	USD
CY2018Q1	us-gaap	Revenues Revenues	62093000	USD
CY2018Q2	us-gaap	Revenues Revenues	6485000	USD
CY2018Q3	us-gaap	Revenues Revenues	13725000	USD
CY2018Q4	us-gaap	Revenues Revenues	49203000	USD
CY2017Q1	us-gaap	Revenues Revenues	8854000	USD
CY2017Q2	us-gaap	Revenues Revenues	16457000	USD
CY2017Q3	us-gaap	Revenues Revenues	36633000	USD
CY2017Q4	us-gaap	Revenues Revenues	3458000	USD
CY2018Q1	us-gaap	Royalty Expense RoyaltyExpense	21744000	USD
CY2018Q2	us-gaap	Royalty Expense RoyaltyExpense	1241000	USD
CY2018Q3	us-gaap	Royalty Expense RoyaltyExpense	1181000	USD
CY2018Q4	us-gaap	Royalty Expense RoyaltyExpense	11002000	USD
CY2017Q1	us-gaap	Royalty Expense RoyaltyExpense	666000	USD
CY2017Q2	us-gaap	Royalty Expense RoyaltyExpense	4273000	USD
CY2017Q3	us-gaap	Royalty Expense RoyaltyExpense	0	USD
CY2017Q4	us-gaap	Royalty Expense RoyaltyExpense	13000	USD
CY2018Q1	actg	Contingent Legal Fees ContingentLegalFees	15759000	USD
CY2018Q2	actg	Contingent Legal Fees ContingentLegalFees	1037000	USD
CY2018Q3	actg	Contingent Legal Fees ContingentLegalFees	2949000	USD
CY2018Q4	actg	Contingent Legal Fees ContingentLegalFees	11756000	USD
CY2017Q1	actg	Contingent Legal Fees ContingentLegalFees	627000	USD
CY2017Q2	actg	Contingent Legal Fees ContingentLegalFees	3236000	USD
CY2017Q3	actg	Contingent Legal Fees ContingentLegalFees	12173000	USD
CY2017Q4	actg	Contingent Legal Fees ContingentLegalFees	646000	USD
CY2018Q1	actg	Patentacquisitionexpenses Patentacquisitionexpenses	4000000	USD
CY2018Q2	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2018Q3	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2018Q4	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2017Q1	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2017Q2	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2017Q3	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2017Q4	actg	Patentacquisitionexpenses Patentacquisitionexpenses	0	USD
CY2018Q1	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	2989000	USD
CY2018Q2	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	2639000	USD
CY2018Q3	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	1549000	USD
CY2018Q4	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	1689000	USD
CY2017Q1	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	6386000	USD
CY2017Q2	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	4134000	USD
CY2017Q3	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	4073000	USD
CY2017Q4	actg	Litigation And Licensing Expenses Patents LitigationAndLicensingExpensesPatents	3626000	USD
CY2018Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5330000	USD
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5278000	USD
CY2018Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4952000	USD
CY2018Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11560000	USD
CY2017Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5515000	USD
CY2017Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5571000	USD
CY2017Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5625000	USD
CY2017Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5443000	USD
CY2018Q1	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2018Q2	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	28210000	USD
CY2018Q3	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2018Q4	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2017Q1	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2017Q2	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2017Q3	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	2248000	USD
CY2017Q4	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2018Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	0	USD
CY2018Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	0	USD
CY2018Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2202000	USD
CY2018Q4	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	400000	USD
CY2017Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	0	USD
CY2017Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	0	USD
CY2017Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	0	USD
CY2017Q4	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1200000	USD
CY2018Q1	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	49822000	USD
CY2018Q2	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	38405000	USD
CY2018Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	12833000	USD
CY2018Q4	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	36407000	USD
CY2017Q1	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	13194000	USD
CY2017Q2	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	17214000	USD
CY2017Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	24119000	USD
CY2017Q4	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	10928000	USD
CY2018Q1	actg	Netportfolioincomeloss Netportfolioincomeloss	12271000	USD
CY2018Q2	actg	Netportfolioincomeloss Netportfolioincomeloss	-31920000	USD
CY2018Q3	actg	Netportfolioincomeloss Netportfolioincomeloss	892000	USD
CY2018Q4	actg	Netportfolioincomeloss Netportfolioincomeloss	12796000	USD
CY2017Q1	actg	Netportfolioincomeloss Netportfolioincomeloss	-4340000	USD
CY2017Q2	actg	Netportfolioincomeloss Netportfolioincomeloss	-757000	USD
CY2017Q3	actg	Netportfolioincomeloss Netportfolioincomeloss	12514000	USD
CY2017Q4	actg	Netportfolioincomeloss Netportfolioincomeloss	-7470000	USD
CY2018Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	3301000	USD
CY2018Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6916000	USD
CY2018Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	5855000	USD
CY2018Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	2778000	USD
CY2017Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	12956000	USD
CY2017Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7236000	USD
CY2017Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7167000	USD
CY2017Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	-140000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	8970000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-38836000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-4963000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	10018000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-11576000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-7924000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-442000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-7330000	USD
CY2018Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-40890000	USD
CY2018Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	10615000	USD
CY2018Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-27595000	USD
CY2018Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-20988000	USD
CY2017Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	696000	USD
CY2017Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4862000	USD
CY2017Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	159027000	USD
CY2017Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-102950000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-31920000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-28221000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-32558000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-10970000	USD
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-10880000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-12786000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	158585000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-110280000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	285000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	306000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	397000	USD
CY2017Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1241000	USD
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1478000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	216000	USD
CY2017Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	-32111000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	-28506000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	-32864000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	-11367000	USD
CY2017Q1	us-gaap	Profit Loss ProfitLoss	-12121000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	-14264000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	158369000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	-110300000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-73000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-79000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	331000	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2000	USD
CY2017Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-291000	USD
CY2017Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-12000	USD
CY2017Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-96000	USD
CY2017Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-97000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	-32038000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	-28427000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-33195000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-11369000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	-11830000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	-14252000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	158465000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	-110203000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.63
CY2018Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.57
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.67
CY2018Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.23
CY2017Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.24
CY2017Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.28
CY2017Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	3.13
CY2017Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.18
CY2018Q1	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	50632958	shares
CY2018Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	50061812	shares
CY2018Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	49557748	shares
CY2018Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	49639172	shares
CY2017Q1	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	50333056	shares
CY2017Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	50499948	shares
CY2017Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	50554234	shares
CY2017Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	50590460	shares
CY2018Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50632958	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50061812	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49557748	shares
CY2018Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49639172	shares
CY2017Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50333056	shares
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50499948	shares
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50599974	shares
CY2017Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50590460	shares

Files In Submission

Name	View Source	Status
0000934549-19-000017-index-headers.html	Edgar Link	pending
0000934549-19-000017-index.html	Edgar Link	pending
0000934549-19-000017.txt	Edgar Link	pending
0000934549-19-000017-xbrl.zip	Edgar Link	pending
acaciaresearchcorp08.jpg	Edgar Link	pending
actg-20181231.xsd	Edgar Link	pending
actg-20181231_cal.xml	Edgar Link	unprocessable
actg-20181231_def.xml	Edgar Link	unprocessable
actg-20181231_lab.xml	Edgar Link	unprocessable
actg-20181231_pre.xml	Edgar Link	unprocessable
actg2018123110-k.htm	Edgar Link	pending
actg2018123110-k_htm.xml	Edgar Link	completed
actgex211123118.htm	Edgar Link	pending
actgex231123118.htm	Edgar Link	pending
actgex311123118.htm	Edgar Link	pending
actgex312123118.htm	Edgar Link	pending
actgex321123118.htm	Edgar Link	pending
actgex322123118.htm	Edgar Link	pending
actgex41123118.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.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

$ACTG
ACACIA RESEARCH CORP Stock $actg

2019 Q1 Form 10-K Financial Statement

#000093454919000017 Filed on March 15, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ACTG ACACIA RESEARCH CORP Stock $actg

2019 Q1 Form 10-K Financial Statement

#000093454919000017 Filed on March 15, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ACTG
ACACIA RESEARCH CORP Stock $actg