Leases - Lease Liabilities, Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019
Operating Leases, After Adoption of 842
Remainder of fiscal 2020	$ 14,191
Fiscal 2021	20,585
Fiscal 2022	18,240
Fiscal 2023	17,297
Fiscal 2024	14,685
Fiscal 2025	8,327
Thereafter	15,268
Total future undiscounted lease payments	108,593
Less imputed interest	(11,512)
Total reported lease liability	97,081
Finance Leases, After Adoption of 842
Remainder of fiscal 2020	2,252
Fiscal 2021	3,003
Fiscal 2022	3,003
Fiscal 2023	267
Fiscal 2024	0
Fiscal 2025	0
Thereafter	0
Total future undiscounted lease payments	8,525
Less imputed interest	(481)
Total reported lease liability	$ 8,044
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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