Stock-Based Compensation Plans (Narrative) (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended	11 Months Ended		12 Months Ended
	Jun. 02, 2021 $ / shares shares	Feb. 02, 2021 USD ($)	Sep. 30, 2021 shares	Dec. 31, 2021 USD ($) shares		Dec. 31, 2021 USD ($) Item shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($)	Jun. 01, 2021 $ / shares shares
Cancelled stock incentive plans
Stated interest rate				7.125%		7.125%
Cancelled stock incentive plans						$ 0
Common stock, par value | $ / shares							$ 0.001
Share based Compensation Arrangement By Share based Payment Award Options Vested And Retired Number Of Shares | shares	35,571
Weighted average fair value of stock options granted | $ / shares								$ 24.60
Risk free interest rate								2.57%
Expected life (years)								6 years
Volatility								56.62%
Number of options outstanding | shares							468,247
Weighted average option price exercisable | $ / shares							$ 156.97
Compensation expense		$ 1,248		$ 1,442			$ 2,628	$ 19,692
Original Senior Unsecured Notes Due 2021 [Member]
Cancelled stock incentive plans
Stated interest rate				7.125%		7.125%
Senior Unsecured Notes Due 2024 [Member]
Cancelled stock incentive plans
Stated interest rate		7.75%		7.75%		7.75%
Employee Restricted Stock Award Agreement [Member]
Cancelled stock incentive plans
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares			2,000,000.0
Unamortized estimated grant date fair value				$ 1,400		$ 1,400
Stock Options [Member]
Cancelled stock incentive plans
Shares available for future grants | shares							0
Share-based payment vesting period, years						3 years
Compensation expense		$ 0					$ 94	2,743
Stock Options [Member] | Equal Installments [Member]
Cancelled stock incentive plans
Share-based payment expiration period, years						10 years
Restricted Stock Units R S U [Member]
Cancelled stock incentive plans
Share-based compensation arrangement by share-based payment award, fair value of the units vested						$ 1,000
Non-vested | shares							134,236
Weighted Average Grant Date Fair Value | $ / shares							$ 80.27
Shares, vested | shares						(48,903)
Compensation expense		1,170		$ 639			$ 4,144	15,716
Restricted Stock Units R S U [Member] | Equal Installments [Member]
Cancelled stock incentive plans
Share-based payment vesting period, years						3 years
Performance Share Units [Member]
Cancelled stock incentive plans
Payment of performance						$ 4,000
Performance period of PSU grant, years						3 years
Performance Share Units Outstanding, in 2020 | shares							210,398
Performance Share Units Outstanding, in next year | shares							96,522
Performance Share Units Outstanding, in 2 years | shares				113,876		113,876
Compensation expense		$ 78		$ (1,268)	[1]		$ (1,554)	$ 935
Restricted Stock Awards [Member]
Cancelled stock incentive plans
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	113,840
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Net | shares	76,269
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 39.53
Unamortized estimated grant date fair value				2,400		$ 2,400
Compensation expense				$ 2,071
KERP [Member]
Cancelled stock incentive plans
Number of executive officers associated to KERP | Item						6
KERP [Member] | Executive Officers [Member]
Cancelled stock incentive plans
Retention payments						$ 7,300
KERP [Member] | Non-executive Employees [Member]
Cancelled stock incentive plans
Retention payments						$ 2,400
Employee Stock Purchase Plan [Member]
Cancelled stock incentive plans
Offering period						6 months
Shares issued | shares								532,292
Cash received for shares issued								$ 700
Compensation expense								100
401K [Member]
Cancelled stock incentive plans
Maximum empoyee contribution						75.00%
Maximum portion of base salary to defer under non-qualified deferred compensation plan						100.00%
Maximum Portion of Base Salary to Defer under Non Qualified Deferred Compensation Plan						4.00%
401K [Member] | Predecessor member
Cancelled stock incentive plans
Company discretionary contributions							400	10,500
401K [Member] | Successor Period
Cancelled stock incentive plans
Company discretionary contributions							2,600	6,200
2021 Management Incentive Plan [Member]
Cancelled stock incentive plans
Common stock reserved for issuance | shares										1,999,869
Common stock, par value | $ / shares										$ 0.01
Supplemental Executive Retirement Plan [Member]
Cancelled stock incentive plans
Employers Contribution to be received by plan participants, Minimum						5.00%
Employers Contribution to be received by plan participants, Maximum						35.00%
Employers contribution							0	1,100	$ 1,200
Distribution to select participants						$ 3,400	$ 0	$ 2,300

[1] The PSU's related to the performance period ended December 31, 2021 were canceled due to not achieving the required performance.