Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income (loss) before income taxes, equity in non-consolidated affiliates and noncontrolling interest	$ (80,407)	$ 87,078	$ (49,716)
Statutory income tax rate	21.00%	35.00%	35.00%
Tax expense (benefit) using statutory income tax rate	$ (16,886)	$ 30,477	$ (17,401)
State and foreign taxes	(2,988)	8,863	(94)
Non-deductible stock-based compensation	1,512	1,441	1,123
Other non-deductible expense	10,091	(220)	1,848
Change to valuation allowance	49,482	(103,212)	6,605
Impact of tax reform	(152)	(2,939)	(353)
Impact of tax reform	0	(100,472)	0
Noncontrolling interests	(2,674)	(4,413)	(1,287)
Impact of foreign operations	1,711	(2,453)	0
Adjustment to deferred tax balances	(8,865)	0	0
Other, net	372	4,864	155
Income tax provision (benefit)	$ 31,603	$ (168,064)	$ (9,404)
Effective income tax rate	(39.30%)	(193.00%)	18.90%