Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Other Liabilities Disclosure [Abstract]
Customer deposits	$ 38,394		$ 28,526
Accrued compensations and benefits	37,355		54,606
Accrued interest	22,680		22,835
Warranty reserve	12,681	$ 12,743	12,931	$ 12,421	$ 12,616	$ 13,052
Litigation accruals	8,517		8,325
Other	27,956		25,128
Total	$ 147,583		$ 152,351