Income Taxes - Components Of Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Components of loss before income taxes and the provision for income taxes
Loss before income taxes	$ (85,465)	$ (87,332)	$ (127,080)
Income tax benefit		(9,217)
Net loss attributable to the Company	(85,465)	(78,115)	(127,080)
significant components deferred income tax (benefit) expense
Deferred tax (benefit) expense	(9,336)	(9,249)	7,144
Net operating loss carryforward generated	(7,524)	(10,703)	(19,134)
Rate change impact on net operating loss carryforwards			23,609
Valuation allowance increase (decrease)	16,860	10,735	(11,619)
U.S.
Components of loss before income taxes and the provision for income taxes
Loss before income taxes	(83,910)	(85,925)	(125,871)
Income tax benefit		(9,217)
Net loss attributable to the Company	(83,910)	(76,708)	(125,871)
significant components deferred income tax (benefit) expense
Deferred tax (benefit) expense	(8,910)	(10,182)	7,675
Net operating loss carryforward generated	(7,254)	(10,038)	(19,117)
Rate change impact on net operating loss carryforwards			23,609
Valuation allowance increase (decrease)	16,164	11,003	(12,167)
Foreign
Components of loss before income taxes and the provision for income taxes
Loss before income taxes	(1,555)	(1,407)	(1,209)
Net loss attributable to the Company	(1,555)	(1,407)	(1,209)
significant components deferred income tax (benefit) expense
Deferred tax (benefit) expense	(426)	933	(531)
Net operating loss carryforward generated	(270)	(665)	(17)
Valuation allowance increase (decrease)	$ 696	$ (268)	$ 548