Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Other Liabilities Disclosure [Abstract]
Customer deposits	$ 31,321	$ 28,526
Accrued compensations and benefits	27,286	54,606
Accrued interest	15,029	22,835
Warranty reserve	12,743	12,931	$ 12,616	$ 13,052
Litigation accruals	8,654	8,325
Income tax liabilities	262	0
Other	26,146	25,128
Total	$ 121,441	$ 152,351