Debt - Summary of Interest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Interest expense
Other	$ 1,107	$ 818	$ 2,212	$ 1,684
Amortization - Debt issue costs
Capitalized interest	(1,596)	(1,216)	(2,885)	(2,327)
Interest expense	10,774	4,010	20,073	8,158
2022 Term Loan Agreement
Interest expense
Interest Expense, debt	10,584		19,504
Amortization - Debt issue costs
Amortization of debt issuance costs	179		358
Term Loan OID	167		335
Term Loan
Interest expense
Interest Expense, debt		3,798		7,682
Amortization - Debt issue costs
Amortization of debt issuance costs		254		508
Term Loan OID		30		61
Revolving Credit Facility [Member]
Interest expense
Interest Expense, debt	267	260	418	419
Amortization - Debt issue costs
Amortization of debt issuance costs	$ 66	$ 66	$ 131	$ 131