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Summary of Significant Accounting Policies (Policies)
9 Months Ended
Sep. 30, 2017
Accounting Policies [Abstract]  
Revenue Recognition
Revenue Recognition.  Revenue is recognized when (i) persuasive evidence of an arrangement exists, (ii) all obligations have been substantially performed pursuant to the terms of the arrangement, (iii) amounts are fixed or determinable, and (iv) the collectibility of amounts is reasonably assured.

In general, revenue arrangements provide for the payment of contractually determined fees in consideration for the grant of certain intellectual property rights for patented technologies owned or controlled by Acacia’s operating subsidiaries.  These rights typically include some combination of the following:  (i) the grant of a non-exclusive, retroactive and future license to manufacture and/or sell products covered by patented technologies owned or controlled by Acacia’s operating subsidiaries, (ii) a covenant-not-to-sue, (iii) the release of the licensee from certain claims, and (iv) the dismissal of any pending litigation.  The intellectual property rights granted may be perpetual in nature, extending until the expiration of the related patents, or can be granted for a defined, relatively short period of time, with the licensee possessing the right to renew the agreement at the end of each contractual term for an additional minimum upfront payment.  Pursuant to the terms of these agreements, Acacia’s operating subsidiaries have no further obligation with respect to the grant of the non-exclusive retroactive and future licenses, covenants-not-to-sue, releases, and other deliverables, including no express or implied obligation on Acacia’s operating subsidiaries’ part to maintain or upgrade the technology, or provide future support or services.  Generally, the agreements provide for the grant of the licenses, covenants-not-to-sue, releases, and other significant deliverables upon execution of the agreement, or upon receipt of the minimum upfront payment for term agreement renewals.  As such, the earnings process is complete and revenue is recognized upon the execution of the agreement, when collectibility is reasonably assured, or upon receipt of the minimum upfront fee for term agreement renewals, and when all other revenue recognition criteria have been met.

For the periods presented herein, the majority of the revenue agreements executed by the Company provided for the payment of one-time, paid-up license fees in consideration for the grant of certain intellectual property rights for patented technology rights owned by Acacia’s operating subsidiaries. These rights were primarily granted on a perpetual basis, extending until the expiration of the underlying patents.
Cost of Revenues
Cost of Revenues.  Cost of revenues include the costs and expenses incurred in connection with Acacia’s patent licensing and enforcement activities, including inventor royalties paid to original patent owners, contingent legal fees paid to external patent counsel, other patent-related legal expenses paid to external patent counsel, licensing and enforcement related research, consulting and other expenses paid to third-parties and the amortization of patent-related investment costs.  These costs are included under the caption “Cost of revenues” in the accompanying condensed consolidated statements of operations.
Inventor Royalties and Contingent Legal Expenses
Inventor Royalties and Contingent Legal Expenses. Inventor royalties are expensed in the condensed consolidated statements of operations in the period that the related revenues are recognized.  In certain instances, pursuant to the terms of the underlying inventor agreements, upfront advances paid to patent owners by Acacia’s operating subsidiaries are recoverable from future net revenues.  Patent costs that are recoverable from future net revenues are amortized over the estimated economic useful life of the related patents, or as the prepaid royalties are earned by the inventor, as appropriate, and the related expense is included in amortization expense in the condensed consolidated statements of operations.  Any unamortized upfront advances recovered from net revenues are expensed in the period recovered, and included in amortization expense in the condensed consolidated statements of operations.

Contingent legal fees are expensed in the condensed consolidated statements of operations in the period that the related revenues are recognized. In instances where there are no recoveries from potential infringers, no contingent legal fees are paid; however, Acacia’s operating subsidiaries may be liable for certain out of pocket legal costs incurred pursuant to the underlying legal services agreement.  

Use of Estimates
Use of Estimates.  The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted 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 condensed 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 5, stock-based compensation expense, 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.
Concentrations
Concentrations. One licensee individually accounted for 96% of revenues recognized during the three months ended September 30, 2017, and three licensees accounted for 57%, 23% and 10% of revenues recognized during the nine months ended September 30, 2017. Two licensees individually accounted for 60% and 27% of revenues recognized during the three months ended September 30, 2016, and three licensees accounted for 30%, 27% and 13% of revenues recognized during the nine months ended September 30, 2016. For the three and nine months ended September 30, 2017, 3% and 39%, 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. For the three and nine months ended September 30, 2016, 93% and 78%, respectively, of revenues were attributable to licensees domiciled in foreign jurisdictions. The Company does not have any material foreign operations. One licensee individually represented approximately 100% of accounts receivable at September 30, 2017. Four licensees individually represented approximately 39%, 22%, 16% and 15% of accounts receivable at December 31, 2016.

Fair Value Measurements
Fair Value Measurements. U.S. GAAP defines fair value as the price that would be received for an asset or the exit price that would be paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants on the measurement date, and also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs, where available. The three-level hierarchy of valuation techniques established to measure fair value is defined as follows:
 
(i)
Level 1 - Observable Inputs:  Quoted prices in active markets for identical investments;
(ii)
Level 2 - Pricing Models with Significant Observable Inputs:  Other significant observable inputs, including quoted prices for similar investments, interest rates, credit risk, etc.; and
(iii)
Level 3 - Unobservable Inputs:  Significant unobservable inputs, including the entity’s own assumptions in determining the fair value of investments.

Whenever possible, the Company is required to use observable market inputs (Level 1 - quoted market prices) when measuring fair value. At September 30, 2017 all of the Company’s investments recorded at fair value, except for short-term investments, were valued utilizing Level 3 - unobservable inputs. In certain cases, inputs used to measure fair value fall into different levels of the fair value hierarchy. In such cases, the level at which the fair value measurement falls is determined based on the lowest level input that is significant to the fair value measurement. The assessment of the significance of a particular input requires judgment and considers factors specific to the asset or liability being measured. Financial assets and liabilities measured at fair value on a recurring basis as were as follows (in thousands):
 
Level 1
 
Level 2
 
Level 3
Assets as of September 30, 2017:
 
 
 
 
 
Short-term investments
$
57,487

 
$

 
$

Investment at fair value (Note 5)

 

 
208,796

Total recurring fair value measurements(1)
$
57,487

 
$

 
$
208,796


____________________
(1) There were no transfers between fair value hierarchy categories for the period presented.

A reconciliation of the activity for fair value measurements categorized within Level 3 for the nine months ended September 30, 2017 is as follows (in thousands):
 
Investment at Fair Value
 
Common Stock
 
Warrants
 
Total
Opening balance as of January 1, 2017
$

 
$

 
$

Total gains and losses included in earnings for the period(1)
 
 
 
 
 
Gain on conversion of loans and accrued interest
2,671

 

 
2,671

Gain on exercise of Primary Warrant

 
4,616

 
4,616

Change in fair value of investment, net
115,381

 
30,900

 
146,281

Purchases, issues, sales and settlements
 

 
 

 
 
Purchases and issues
54,202

 
1,026

 
55,228

Total recurring fair value measurements(1)
$
172,254

 
$
36,542

 
$
208,796


____________________
(1) All gains and losses included in earnings for the period presented relate to assets and liabilities held as of September 30, 2017.

Stock-Based Compensation
Stock-Based Compensation. The compensation cost for all stock-based awards is measured at the grant date, based on the fair value of the award, and is recognized as an expense on a straight-line basis over the employee’s requisite service period (generally the vesting period of the equity award) which is generally two to four years. The fair value of restricted stock and restricted stock unit awards is determined by the product of the number of shares or units granted and the grant date market price of the underlying common stock. The fair value of each option award is estimated on the date of grant using a Black-Scholes option-pricing model. Stock-based compensation expense for awards with service and / or performance conditions that affect vesting is recorded only for those awards expected to vest using an estimated forfeiture rate.

Restricted stock awards and stock option awards with performance-based vesting conditions generally vest based upon the Company achieving specified cash flow performance targets over a one and two-year period from the date of grant.
 
Performance-based stock option awards with market-based vesting conditions vest based upon the Company achieving specified stock price targets over a four-year period. The effect of a market condition is reflected in the estimate of the grant-date fair value of the options utilizing a Monte Carlo valuation technique. Compensation cost is recognized for an option with a market-based vesting condition provided that the requisite service is rendered, regardless of when, if ever, the market condition is satisfied. The service period for options with a market-based vesting condition is inferred from the application of the Monte Carlo valuation technique. The derived service period represents the duration of the median of the distribution of share price paths on which the market condition is satisfied. The duration is the period of time from the service inception date to the expected date of satisfaction, as determined from the valuation technique. Assumptions utilized in connection with the Monte Carlo valuation technique included: estimated risk-free interest rate; expected volatility; and expected dividend yield. The risk-free interest rate was determined based on the yields available on U.S. Treasury zero-coupon issues. The expected stock price volatility was determined using historical volatility. The expected dividend yield was based on expectations regarding dividend payments.

Profits Interest Units (“Units”) are accounted for in accordance with Accounting Standards Codification (“ASC”) 718-10, “Compensation - Stock Compensation.” The Units vest as described at Note 7, and therefore, the vesting conditions do not meet the definition of service, market or performance conditions, as defined in ASC 718. As such, the Units are classified as liability awards. Liability classified awards are measured at fair value on the grant date and re-measured each reporting period at fair value until the award is settled. Compensation expense is adjusted each reporting period for changes in fair value prorated for the portion of the requisite service period rendered. Initially, compensation expense was recognized on a straight-line basis over the employee’s requisite service period (generally the vesting period of the equity award) which was five years. Upon full vesting, which occurred during the three months ended September 30, 2017, previously unrecognized compensation expense was immediately recognized in the period, and will continue to be fully recognized for any changes in fair value, until the Units are settled. Non-cash stock compensation expense related to the Units is reflected in general and administrative expense in the accompanying condensed consolidated statement of operations. Refer to Note 7 for additional information.

Cash and Cash Equivalents, Policy [Policy Text Block]
Cash and Cash Equivalents.  Acacia considers all highly liquid, short-term investments with original maturities of three months or less when purchased to be cash equivalents. For the periods presented, Acacia’s cash equivalents are comprised of investments in AAA rated money market funds that invest in first-tier only securities, which primarily includes: domestic commercial paper, securities issued or guaranteed by the U.S. government or its agencies, U.S. bank obligations, and fully collateralized repurchase agreements. Acacia’s cash equivalents are measured at fair value using quoted prices that represent Level 1 inputs.
Marketable Securities, Policy [Policy Text Block]
Investments in Marketable Securities.  Investments in securities with original maturities of greater than three months and less than one year and other investments representing amounts that are available for current operations are classified as short-term investments, unless there are indications that such investments may not be readily sold in the short term. The fair values of these investments approximate their carrying values. For the periods presented, all of Acacia’s short-term investments were classified as available-for-sale, which are reported at fair value on a recurring basis using significant observable inputs (Level 1), with related unrealized gains and losses in the value of such securities recorded as a separate component of other comprehensive income (loss) in stockholders’ equity until realized. Realized and unrealized gains and losses are recorded based on the specific identification method. Interest is included in total other income (expense).

Short-term marketable securities for the periods presented were comprised of the following (in thousands):
 
 
 
Gross Unrealized
 
 
Security Type
Cost
 
Gains
 
Losses
 
Fair Value
September 30, 2017:
 
 
 
 
 
 
 
U.S. government fixed income securities
$
57,427

 
$
60

 
$

 
$
57,487

 
 
 
 
 
 
 
 
December 31, 2016:
 
 
 
 
 
 
 
U.S. government fixed income securities
$
19,403

 
$
40

 
$

 
$
19,443

Patents
Patents.  Patents include the cost of patents or patent rights (hereinafter, collectively “patents”) acquired from third-parties or obtained in connection with business combinations. Patent costs are amortized utilizing the straight-line method over their remaining economic useful lives, ranging from one to seven years.

Equity Method Investments, Policy [Policy Text Block]
Equity Method Investments. Equity investments without readily determinable fair values in companies over which the Company has the ability to exercise significant influence, are accounted for using the equity method of accounting, and classified within “Equity Method Investments” in the condensed consolidated balance sheet. Acacia includes its proportionate share of earnings and/or losses of its equity method investees in equity in earnings (losses) of investee in the condensed consolidated statements of operations. Refer to Note 5 for additional information regarding equity method investments.
Fair Value of Financial Instruments, Policy [Policy Text Block]
Investments at Fair Value. On an individual investment basis, Acacia may elect to account for investments in companies where the Company has the ability to exercise significant influence over operating and financial policies of the investee, at fair value. If the fair value option is applied to an investment that would otherwise be accounted for under the equity method of accounting, it is applied to all of the financial interests in the same entity that are eligible items (i.e. common stock and warrants). Refer to Note 5 for additional information regarding investments accounted for at fair value on a recurring basis.
Impairment of investments [Policy Text Block]
Impairment of Investments. Acacia reviews its equity method investments quarterly for indicators of other-than-temporary impairment. This determination requires significant judgment. In making this judgment, Acacia employs a systematic methodology quarterly that considers available quantitative and qualitative evidence in evaluating potential impairment of its investments. If the cost of an investment exceeds its fair value, Acacia evaluates, among other factors, general market conditions and the duration and extent to which the fair value is less than cost. Acacia also considers specific adverse conditions related to the financial health of and business outlook for the investee, including industry and sector performance, changes in technology, and operational and financing cash flow factors. Once a decline in fair value is determined to be other-than-temporary, an impairment charge is recorded in the condensed consolidated statement of operations and a new cost basis in the investment is established.
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
Impairment of Long-lived Assets. Acacia reviews long-lived assets and intangible assets for potential impairment annually (quarterly for patents) and when events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. In the event the expected undiscounted future cash flows resulting from the use of the asset is less than the carrying amount of the asset, an impairment loss is recorded equal to the excess of the asset’s carrying value over its fair value. If an asset is determined to be impaired, the loss is measured based on quoted market prices in active markets, if available. If quoted market prices are not available or not indicative of current fair value, the estimate of fair value is based on various valuation techniques, including a discounted value of estimated future cash flows. In the event that management decides to no longer allocate resources to a patent portfolio, an impairment loss equal to the remaining carrying value of the asset is recorded.

Fair value is generally estimated using the “Income Approach,” focusing on the estimated future net income-producing capability of the patent portfolios over the estimated remaining economic useful life. Estimates of future after-tax cash flows are converted to present value through “discounting,” including an estimated rate of return that accounts for both the time value of money and investment risk factors. Estimated cash inflows are typically based on estimates of reasonable royalty rates for the applicable technology, applied to estimated market data. Estimated cash outflows are based on existing contractual obligations, such as contingent legal fee and inventor royalty obligations, applied to estimated license fee revenues, in addition to other estimates of out-of-pocket expenses associated with a specific patent portfolio’s licensing and enforcement program. The analysis also contemplates consideration of current information about the patent portfolio including, status and stage of litigation, periodic results of the litigation process, strength of the patent portfolio, technology coverage and other pertinent
information that could impact future net cash flows.
Income Taxes
Income Taxes.  Income taxes are accounted for using an asset and liability approach that requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in Acacia’s condensed consolidated financial statements or consolidated income tax returns. A valuation allowance is established to reduce deferred tax assets if all, or some portion, of such assets will more than likely not be realized, or if it is determined that there is uncertainty regarding future realization of such assets.

The provision for income taxes for interim periods is determined using an estimate of Acacia’s annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter, Acacia updates the estimate of the annual effective tax rate, and if the estimated tax rate changes, a cumulative adjustment is recorded.  

The Company’s effective tax rates were 0% and 2% for the three and nine months ended September 30, 2017, respectively, and 58% and 56% for the three and nine months ended September 30, 2016, respectively.

Results for the three and nine months ended September 30, 2017 included pretax net income of $158,585,000, and $134,919,000, respectively, primarily comprised of an unrealized gain on Acacia's investment in Veritone for the three and nine months ended September 30, 2017 totaling $158,979,000 and $153,568,000, respectively. The unrealized gain created a deferred tax liability totaling approximately $54,108,000 at September 30, 2017. The future anticipated reversal of this deferred tax liability provides for a source of taxable income that allows for the realizability of existing deferred tax assets that have been reduced by a valuation allowance for the periods presented. The effective tax rate reflects both the recognition of the deferred tax liability and the reversal of valuation allowance, resulting in the 0% and 2% tax rate for the three and nine months ended September 30, 2017, respectively. Tax expense for the three and nine months ended September 30, 2017 primarily reflects the impact of state taxes and for the nine month period, foreign withholding taxes incurred on revenue agreements executed with third-party licensees domiciled in foreign jurisdictions. The effective rates for the 2016 periods primarily reflect the impact of foreign withholding taxes related to certain revenue agreements executed with third party licensees domiciled in foreign jurisdictions.