Earnings per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Basic net income per share:
Net income	$ 149,221	$ 35,504	$ 52,271
Weighted-average common shares outstanding during period (in shares)	31,522,845	40,845,128	57,331,622
Basic net income per share (in USD per share)	$ 4.73	$ 0.87	$ 0.91
Diluted net income per share:
Net income	$ 149,221	$ 35,504	$ 52,271
Weighted-average common shares outstanding during period (in shares)	31,522,845	40,845,128	57,331,622
Plus: Common stock equivalents associated with liability-based stock option awards (in shares)	2,272,749	2,620,870	2,299,573
Diluted shares outstanding (in shares)	33,795,594	43,465,998	59,631,195
Diluted net income per share (in USD per share)	$ 4.42	$ 0.82	$ 0.88