Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Other Liabilities [Abstract]
Accrued interest	$ 31,632	$ 34,645
Accrued warranty expenses	27,681	16,084	$ 11,663	$ 15,477
Accrued bonus and deferred compensation	25,076	24,270
Customer deposits	13,757	11,977
Litigation accrual	12,607	13,401
Income tax liabilities	1,998	5,576
Other	36,215	36,563
Total	$ 148,966	$ 142,516