Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jul. 08, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 15, 2020
Income Taxes [Line Items]
Effective income tax rate		6.50%	3.40%	(1.30%)	3.20%
Corporate federal income tax rate		21.00%	21.00%	21.00%	21.00%
Decrease in deferred income tax liability		$ 232,361
Regulatory Liabilities		13,808		$ 13,808		$ 160,655
Natural Gas Accounts Receivable [Member]
Income Taxes [Line Items]
Refunded payments		$ 3,278		$ 20,516
Minimum [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent	0.50%
Minimum [Member] | State [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent				2.50%
Maximum [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent	4.99%
Maximum [Member] | State [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent				9.99%
Pennsylvania [Member] | Minimum [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent		9.99%	9.99%
Pennsylvania [Member] | Maximum [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent				8.99%	8.99%