Income Taxes (Reconciliation Of Provision For Income Taxes) (Details)	2 Months Ended	3 Months Ended	4 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2022	Apr. 30, 2021	Jun. 30, 2022
Successor [Member]
Consolidated tax provision at federal statutory rate	21.00%	21.00%		21.00%
State income tax expense, net of federal income tax benefit	3.70%	15.00%		12.00%
Changes in certain deferred tax balances		1.70%		1.10%
Tax reserve adjustment	0.60%	0.30%		0.40%
Tax Credit	(1.30%)	(0.60%)		(0.80%)
Sec. 162(m) - nondeductible Executive Compensation		2.40%		3.20%
All other, net	6.10%	0.80%		0.50%
Effective tax rate	30.10%	40.60%		37.40%
Predecessor [Member]
Consolidated tax provision at federal statutory rate			21.00%
State income tax expense, net of federal income tax benefit			0.50%
Restructuring cost			0.30%
Fresh start and reorganization adjustments			(24.90%)
Effective tax rate			(3.10%)