Property and Equipment (Details) - USD ($) $ / shares in Units, $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2016	Jul. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment gross	$ 97,504		$ 97,504	$ 81,392
Less: accumulated depreciation	(69,107)		(69,107)	(57,263)
Total	$ 28,397		28,397	24,129
Property and equipment, useful life	4 years	3 years
Reduction in depreciation expense			$ 1,000
Reduction in basic loss per share (in dollars per share)			$ 0.02
Reduction in diluted loss per share (in dollars per share)			$ 0.02
Depreciation			$ 12,011	12,114	$ 9,071
Computer Equipment And Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	$ 82,477		82,477	67,631
Furniture, Equipment And Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	$ 15,027		$ 15,027	$ 13,761