CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 05, 2021	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 250,228	$ 101,982	$ 168,948	$ (3,978,459)
Other comprehensive income (loss)
Foreign currency translation adjustments	(116)	0	0	(521)
Net changes in pension and other postretirement plan assets and benefit obligations recognized in other comprehensive loss, net of tax provision (benefit) of $(928), $1,476, $59, $78 for the year ended December 31, 2022, period from February 6 through December 31, 2021, period from January 1 through February 5, 2021, and the year ended December 31, 2020, respectively	224	5,389	(1,742)	898
Other comprehensive income (loss), net	108	5,389	(1,742)	377
Comprehensive income (loss)	$ 250,336	$ 107,371	$ 167,206	$ (3,978,082)