Anuvu Annual report pursuant to Section 13 and 15(d)

Business Combinations - Row 44 Merger Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Less: cash paid for GEAC shares that were redeemed	$ (500)	$ 0	$ 0
Net cash received from Row 44 Merger	0ent_CashAcquiredFromMerger	159,305ent_CashAcquiredFromMerger	0ent_CashAcquiredFromMerger
Row 44 Merger
Business Acquisition [Line Items]
Operating cash		8
Add: cash held in trust		189,255
Less: cash paid for GEAC shares that were redeemed		(101,286)
Add: cash received from backstop participants		71,250
Net cash received from Row 44 Merger		$ 159,227