Goodwill and Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended		24 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, Beginning Balance			$ 660,981	$ 670,294	$ 670,294
Impairment of Goodwill	$ (9,300)	$ 0	0	(9,313)	(9,313)
Goodwill, Ending Balance	$ 660,981	$ 670,294	$ 660,981	$ 660,981	$ 660,981