CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (in thousands) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 36,229	$ (764,614)	$ (187,001)
Other comprehensive income (loss), net of tax:
Pension liability adjustment (1)	[1]	749	(2,279)	1,061
Total other comprehensive income (loss), net of tax		749	(2,279)	1,061
Total comprehensive income (loss)		$ 36,978	$ (766,893)	$ (185,940)

[1] Please refer to Note 11 – Pension Benefits for additional discussion of the pension liability adjustment.