v3.19.3.a.u2

Segment and Geographic Information - Reconciliation of Net Loss to Total Segment Profitability (Details) - USD ($) $ 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
Segment Reporting [Abstract]
Net loss	$ (44,584)	$ (141,112)	$ (27,972)	$ (21,554)	$ 4,832	$ (9,944)	$ (18,347)	$ (14,871)	$ (235,222)	$ (38,330)	$ (29,423)
Interest income	(713)	(924)	(1,814)	(2,349)	(2,120)	(1,799)	(912)	(342)	(5,800)	(5,173)	(371)
Interest expense	5,289	5,651	2,424	55	27	27	27	27	13,419	108	87
Foreign currency loss									707	1,722	866
Income tax benefit	(942)	714	(18,691)	(941)	$ 340	$ (414)	$ (3,565)	$ (1,228)	(19,860)	(4,867)	(1,297)
Depreciation and amortization expense									69,843	32,785	19,624
Deferred revenue fair value adjustment									11,175	0	0
Transaction costs									4,786	0	0
Integration costs									3,255	0	0
Restructuring-related costs									10,826	0	0
Shareholder activism costs									1,042	0	0
Impairment charge	$ 0	$ 70,379	$ 0	$ 0					70,379	0	0
Stock-based compensation expense									51,504	31,410	21,930
Total adjustments									211,276	55,985	40,839
Total segment profitability									$ (23,946)	$ 17,655	$ 11,416

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