Business Combinations - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Total intangible assets subject to amortization	$ 307,493	$ 307,493
Less: accumulated amortization	(92,933)	(45,868)
Net intangible assets subject to amortization	214,560	261,625
Developed technology
Finite-Lived Intangible Assets [Line Items]
Total intangible assets subject to amortization	78,193	78,193
Content
Finite-Lived Intangible Assets [Line Items]
Total intangible assets subject to amortization	128,600	128,600
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Total intangible assets subject to amortization	75,300	75,300
Contract backlog
Finite-Lived Intangible Assets [Line Items]
Total intangible assets subject to amortization	13,000	13,000
Trade names
Finite-Lived Intangible Assets [Line Items]
Total intangible assets subject to amortization	$ 12,400	$ 12,400