Leases - Lease Liabilities, Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Sep. 30, 2019
Operating Leases, After Adoption of 842
Remainder of fiscal 2020	$ 10,292
Fiscal 2021	22,929
Fiscal 2022	18,216
Fiscal 2023	17,301
Fiscal 2024	14,736
Fiscal 2025	8,354
Thereafter	15,226
Total future undiscounted lease payments	107,054
Less imputed interest	(10,770)
Total reported lease liability	96,284
Finance Leases, After Adoption of 842
Remainder of fiscal 2020	2,347
Fiscal 2021	3,727
Fiscal 2022	3,726
Fiscal 2023	560
Fiscal 2024	0
Fiscal 2025	0
Thereafter	0
Total future undiscounted lease payments	10,360
Less imputed interest	(497)
Total reported lease liability	$ 9,863
Operating Leases, Before Adoption of 842
Fiscal 2020		$ 19,842
Fiscal 2021		19,969
Fiscal 2022		17,677
Fiscal 2023		16,940
Fiscal 2024		14,887
Thereafter		24,431
Total minimum lease payments		113,746
Capital Leases, Before Adoption of 842
Fiscal 2020		1,935
Fiscal 2021		1,934
Fiscal 2022		1,934
Fiscal 2023		0
Fiscal 2024		0
Thereafter		0
Total minimum lease payments		5,803
Less amount representing interest		(379)
Present value of minimum lease payments		$ 5,424

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