Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Leases [Abstract]
Operating Lease, Liability, Current	$ 19,619		$ 19,619		$ 19,496
Finance Lease, Liability, Current	4,657		4,657		$ 4,301
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	10,701		10,701
Lessee, Operating Lease, Liability, Payments, Due Year Two	18,274		18,274
Lessee, Operating Lease, Liability, Payments, Due Year Three	14,566		14,566
Lessee, Operating Lease, Liability, Payments, Due Year Four	10,050		10,050
Lessee, Operating Lease, Liability, Payments, Due Year Five	5,659		5,659
Lessee, Operating Lease, Liability, Payments, Due after Year Five	5,473		5,473
Lessee, Operating Lease, Liability, Payments, Due	64,723		64,723
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	6,929		6,929
Operating Lease, Liability	57,794		57,794
Finance Lease, Liability, Payments, Due Next Twelve Months	2,438		2,438
Finance Lease, Liability, Payments, Due Year Two	4,653		4,653
Finance Lease, Liability, Payments, Due Year Three	3,786		3,786
Finance Lease, Liability, Payments, Due Year Four	1,984		1,984
Finance Lease, Liability, Payments, Due Year Five	241		241
Finance Lease, Liability, Payments, Due after Year Five	8		8
Finance Lease, Liability, Payment, Due	13,110		13,110
Finance Lease, Liability, Undiscounted Excess Amount	1,212		1,212
Finance Lease, Liability	11,898		11,898
Lessee, Total Lease, Liability, Payments, Remainder of Fiscal Year [Line Items]	13,139		13,139
Total Lease, Liability, Payments, Year Two	22,927		22,927
Total Lease, Liability, Payments, Year Three	18,352		18,352
Total Lease, Liability, Payments, Year Four	12,034		12,034
Total Lease, Liability, Payments, Year Five	5,900		5,900
Total Lease, Liability, Payments, Due After Year Five	5,481		5,481
Total Lease, Liability, Payments Due	77,833		77,833
Total Lease, Liability, Undiscounted Excess Amount	8,141		8,141
Total Lease, Liability	69,692		69,692
Lessee, Operating Lease, Lease Not yet Commenced, Description	3,598		3,598
Operating Lease, Cost	5,718	$ 4,407	11,414	$ 9,333
Finance Lease, Right-of-Use Asset, Amortization	1,126	1,011	2,134	1,686
Finance Lease, Interest Expense	215	216	399	366
Finance Lease, Cost	1,341	1,227	2,533	2,052
Short-term Lease, Cost	389	513	810	1,102
Variable Lease, Cost	1,083	661	2,081	1,074
Lease, Cost	8,531	6,808	16,838	13,561
Operating Lease, Payments	6,026	5,867	12,064	11,818
Finance Lease, Interest Payment on Liability	215	216	399	366
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	1,116	2,872	7,575	9,191
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 644	$ 1,882	$ 984	$ 4,826
Operating Lease, Weighted Average Remaining Lease Term	4 years 1 month 6 days		4 years 1 month 6 days		4 years 6 months
Finance Lease, Weighted Average Remaining Lease Term	3 years		3 years		3 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	5.30%		5.30%		5.10%
Finance Lease, Weighted Average Discount Rate, Percent	6.30%		6.30%		6.00%
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Current	$ 19,619		$ 19,619		$ 19,496
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued expenses		Accounts payable and accrued expenses
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued expenses		Accounts payable and accrued expenses
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities		Other non-current liabilities
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other non-current assets		Other non-current assets