Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020
Other Liabilities Disclosure [Abstract]
Customer deposits	$ 44,055		$ 28,526
Accrued compensations and benefits	41,222		54,606
Accrued interest	14,972		22,835
Warranty reserve	13,020	$ 12,681	12,931	$ 12,346	$ 12,421	$ 13,052
Litigation accruals	8,704		8,325
Income tax liabilities	174		0
Other	33,029		25,128
Total	$ 155,176		$ 152,351