Basis of Presentation - Reconciliation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator — Basic
Total net (loss) income attributable to common stockholders	$ (38,473)	$ 14,058	$ (194,423)	$ (35,394)
Less: allocation to participating securities	0	(5,494)	0	0
Net (loss) income attributable to common stockholders	(38,473)	8,564	(194,423)	(35,394)
Numerator — Diluted
Net income (loss) allocated to common stockholders - basic	(38,473)	8,564	(194,423)	(35,394)
Restricted stock unit compensation gain, net of tax	0	(80)	0	0
Net income (loss) allocated to common stockholders - diluted	$ (38,473)	$ 8,484	$ (194,423)	$ (35,394)
Denominator
Weighted average number of common shares- basic (in shares)	25,361,361	24,933,853	25,238,972	24,852,994
Restricted stock units converted under the treasury method (in shares)	0	397,957	0	0
Weighted average number of common shares- diluted (in shares)	25,361,361	25,331,810	25,238,972	24,852,994
Earnings per share
Basic (in dollars per share)	$ (1.52)	$ 0.34	$ (7.70)	$ (1.42)
Diluted (in dollars per share)	$ (1.52)	$ 0.33	$ (7.70)	$ (1.42)