Derivatives - Narrative (Details) - USD ($)	Sep. 30, 2023	Jan. 31, 2023
Derivatives
Derivative, notional amount		$ 400,000,000
Derivative, fixed interest rate		3.8565%
Interest expense out of accumulated other comprehensive loss over the next twelve months	$ 5,700,000
Commodity swaps
Derivatives
Maximum loss if counterparties fail to perform	73,700,000
Possible reduction in maximum loss if counterparties fail to perform	$ 10,500,000