Condensed Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional paid-in capital	Retained earnings	Retained earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated other comprehensive income (loss)
Beginning balance (in shares) at Dec. 31, 2018			199,143,218
Beginning balance at Dec. 31, 2018	$ 280,000	$ 149,000	$ 0	$ 52,000	$ 245,000	$ 149,000	$ (17,000)
Net income (loss)	251,000				251,000
Dividend and dividend equivalent rights	(159,000)				(159,000)
Restricted stock issued (in shares)			55,632
Shares issued in connection with vesting of restricted stock units (in shares)			61,940
Shares withheld to cover employee taxes on vested restricted stock units (in shares)			(17,936)
Unrealized gain (loss) from cash flow hedges, net of tax	21,000						21,000
Stock option repurchases	$ (3,000)			(3,000)
Stock option exercised (in shares)	0
Stock-based compensation	$ 3,000			3,000
Ending balance (in shares) at Dec. 31, 2019			199,242,854
Ending balance at Dec. 31, 2019	542,000		$ 0	52,000	486,000		4,000
Net income (loss)	(225,000)				(225,000)
Restricted stock issued (in shares)			99,408
Shares issued in connection with vesting of restricted stock units (in shares)			134,900
Shares withheld to cover employee taxes on vested restricted stock units (in shares)			(39,064)
Unrealized gain (loss) from cash flow hedges, net of tax	$ (15,000)						(15,000)
Stock option exercised (in shares)	0
Stock-based compensation	$ 8,000			8,000
Ending balance (in shares) at Dec. 31, 2020	199,438,098		199,438,098
Ending balance at Dec. 31, 2020	$ 310,000		$ 0	60,000	261,000		(11,000)
Net income (loss)	(102,000)				(102,000)
Shares issued in connection with vesting of restricted stock units (in shares)			645,206
Shares withheld to cover employee taxes on vested restricted stock units (in shares)			(200,735)
Shares withheld to cover employee taxes on vested restricted stock units	(3,000)			(3,000)
Unrealized gain (loss) from cash flow hedges, net of tax	$ 1,000						1,000
Restricted stock unit repurchases (in shares)			(20,368)
Stock option exercised (in shares)	2,202,895		2,202,895
Stock option exercises	$ 3,000			3,000
Stock-based compensation	11,000			11,000
Issuance of common stock upon initial public offering, net of offering costs, underwriting discounts and commissions (in shares)			15,000,000
Issuance of common stock upon initial public offering, net of offering costs, underwriting discounts and commissions	267,000			267,000
CARES Act warrants	$ 43,000			43,000
Ending balance (in shares) at Dec. 31, 2021	217,065,096		217,065,096
Ending balance at Dec. 31, 2021	$ 530,000		$ 0	$ 381,000	$ 159,000		$ (10,000)