Summary of Significant Accounting Policies - Schedule of Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Accounting Policies [Abstract]
Reverse stock split ratio	one-for-five
Other Liabilities [Abstract]
Income tax liabilities	$ 22,160	$ 22,225
Accrued warranty expenses	14,342	15,477	17,414	17,916
Accrued interest	16,097	28,673
Accrued and deferred compensation	13,812	24,612
Customer deposits	9,706	8,830
Other	46,152	47,901
Total	$ 122,269	$ 147,718