XML 75 R16.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurements and Auction Rate Securities | 12 Months Ended
--- | ---
Dec. 31, 2013
Fair Value Measurements and Auction Rate Securities [Abstract] |
Fair Value Measurements and Auction Rate Securities | FAIR VALUE MEASUREMENTS AND AUCTION RATE SECURITIES As of December 31, 2011, Acacia held investment grade auction rate securities with a par value totaling $2,425,000, consisting of auction rate investments backed by student loans, which were classified as noncurrent, available-for-sale and reflected at fair value. The fair values of these securities were estimated utilizing an analysis of certain unobservable inputs (Level 3) and by reference to periodic discounted cash flow analyses. All outstanding auction rate securities as of December 31, 2011, were sold during the year ended December 31, 2012. For the year ended December 31, 2012 auction rate securities related recognized gains included in earnings totaled $118,000, and total settlements of auction rate securities totaled $2,074,000.

X
- Details
Name: | actg_FairValueMeasurementsAndAuctionRateSecuritiesAbstract
Namespace Prefix: | actg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair Value Measurements and Auction Rate Securities [Text Block] + References No definition available. + Details
Name: | actg_FairValueMeasurementsAndAuctionRateSecuritiesTextBlock
Namespace Prefix: | actg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration