Debt - Narrative (Details)		3 Months Ended		6 Months Ended
	Jan. 12, 2022 USD ($) caplet	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022
Debt Instrument [Line Items]
Unrealized (loss) gain on interest rate caplets, net of tax		$ (2,166,000)	$ 4,864,000
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, after tax		$ 1,900,000
Credit Agreement, Amendment 1 | Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 300,000,000
Debt instrument, term	4 years
Number of deferred premium caplets | caplet	48
Credit Agreement, Amendment 1 | Term Loan | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				2.00%