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Selected Quarterly Financial Data (Unaudited) - Schedule of Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 152,187	$ 152,090	$ 148,207	$ 154,198	$ 164,346	$ 169,312	$ 168,512	$ 159,957	$ 606,682	$ 662,127	$ 626,262
Cost of revenue and operations	24,562	25,089	24,319	25,579	26,140	23,808	22,500	17,985	99,549	90,433	65,541
Operating (loss) income	4,706	(447,716)	1,004	(4,054)	23,870	28,331	24,557	7,166	(446,060)	83,924	134,256
Net (loss) income	$ (4,110)	$ (426,157)	$ (6,026)	$ (9,031)	$ 9,357	$ 15,797	$ 12,726	$ 929	$ (445,324)	$ 38,809	$ 224,443
(Loss) earnings per share, basic	$ (0.06)	$ (6.38)	$ (0.09)	$ (0.13)	$ 0.14	$ 0.23	$ 0.18	$ 0.01	$ (6.65)	$ 0.55	$ 3.13
(Loss) earnings per share, diluted	$ (0.06)	$ (6.38)	$ (0.09)	$ (0.13)	$ 0.14	$ 0.23	$ 0.18	$ 0.01	$ (6.65)	$ 0.55	$ 3.13

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