Income Taxes (Reconciliation Of Provision For Income Taxes) (Details)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Successor [Member]
Consolidated tax provision at federal statutory rate	21.00%
State income tax provisions, net of federal income tax expense	6.70%
Tax reserve adjustment	0.50%
Tax Credit	(1.10%)
Sec.162(m) - nondeductible Executive Compensation	4.50%
Effective tax rate	31.60%
Predecessor [Member]
Consolidated tax provision at federal statutory rate		21.00%
State income tax provisions, net of federal income tax expense		8.70%
Changes in certain deferred tax balances		60.90%
Interest expense deduction		(36.70%)
Restructuring cost		5.10%
All other, net		0.20%
Effective tax rate		59.20%