CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid‑In Capital	Retained Earnings (Accumulated Deficit)
Beginning balance (in shares) at Dec. 31, 2018		100,190
Beginning balance at Dec. 31, 2018	$ 797,355	$ 100	$ 817,690	$ (20,435)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock‑based compensation cost	7,776		7,776
Issuance of equity award—net (in shares)		434
Issuance of equity award—net	1,164	$ 1	1,163
Net (loss) income	163,010			163,010
Ending balance (in shares) at Dec. 31, 2019		100,624
Ending balance at Dec. 31, 2019	969,305	$ 101	826,629	142,575
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock‑based compensation cost	9,100		9,100
Issuance of equity award—net (in shares)		289
Tax withholdings paid for net settlement of equity	(614)		(614)
Net (loss) income	(107,020)			(107,020)
Ending balance (in shares) at Dec. 31, 2020		100,913
Ending balance at Dec. 31, 2020	870,771	$ 101	835,115	35,555
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock‑based compensation cost	11,519		11,519
Issuance of equity award—net (in shares)		2,524
Issuance of equity award—net	4,017	$ 2	4,015
Tax withholdings paid for net settlement of equity	(5,820)		(5,820)
Net (loss) income	(54,185)			(54,185)
Ending balance (in shares) at Dec. 31, 2021		103,437
Ending balance at Dec. 31, 2021	$ 826,302	$ 103	$ 844,829	$ (18,630)