Long-Term Debt and Capital Lease Obligations (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2011 Recourse Debt [Member] Capital lease obligations [Member]	Sep. 30, 2012 Non Recourse Debt [Member] 10% unsecured notes due 2013 [Member]	Sep. 30, 2011 Non Recourse Debt [Member] 10% unsecured notes due 2013 [Member]	Sep. 30, 2012 Non Recourse Debt [Member] 15% unsecured notes due 2013 [Member]	Sep. 30, 2011 Non Recourse Debt [Member] 15% unsecured notes due 2013 [Member]	Sep. 30, 2012 Non Recourse Debt [Member] 16% unsecured notes due 2013 [Member]	Sep. 30, 2011 Non Recourse Debt [Member] 16% unsecured notes due 2013 [Member]	Sep. 30, 2012 Non Recourse Debt [Member] 10% unsecured notes due 2014 [Member]	Sep. 30, 2011 Non Recourse Debt [Member] 10% unsecured notes due 2014 [Member]	Sep. 30, 2012 Non Recourse Debt [Member] 10% unsecured notes due 2015 [Member]	Sep. 30, 2011 Non Recourse Debt [Member] 10% unsecured notes due 2015 [Member]	Sep. 30, 2012 Non Recourse Debt [Member] 15% secured notes due 2015 [Member]	Sep. 30, 2011 Non Recourse Debt [Member] 15% secured notes due 2015 [Member]	Sep. 30, 2012 Non Recourse Debt [Member] 10% unsecured notes due 2016 [Member]	Sep. 30, 2011 Non Recourse Debt [Member] 10% unsecured notes due 2016 [Member]	May 10, 2011 Domestic Line Of Credit [Member]	Sep. 30, 2012 Domestic Line Of Credit [Member] Recourse Debt [Member]	Sep. 30, 2011 Domestic Line Of Credit [Member] Recourse Debt [Member]	Sep. 30, 2012 Foreign Line of Credit [Member] Non Recourse Debt [Member] Secured foreign currency line of credit up to $3,900 due 2014 [Member]	Sep. 30, 2011 Foreign Line of Credit [Member] Non Recourse Debt [Member] Secured foreign currency line of credit up to $3,900 due 2014 [Member]	Sep. 30, 2012 Foreign Line of Credit [Member] Non Recourse Debt [Member] Secured foreign currency line of credit up to $19,500 due 2015 [Member]	Sep. 30, 2011 Foreign Line of Credit [Member] Non Recourse Debt [Member] Secured foreign currency line of credit up to $19,500 due 2015 [Member]	Sep. 30, 2012 Foreign Line of Credit [Member] Non Recourse Debt [Member] Secured foreign currency line of credit up to $23,300 due 2017 [Member]	Sep. 30, 2011 Foreign Line of Credit [Member] Non Recourse Debt [Member] Secured foreign currency line of credit up to $23,300 due 2017 [Member]	Sep. 30, 2012 Revolving Credit Facility [Member] Non Recourse Debt [Member] Securitization borrowing facility up to $116,700 due 2017 [Member]	Sep. 30, 2011 Revolving Credit Facility [Member] Non Recourse Debt [Member] Securitization borrowing facility up to $116,700 due 2017 [Member]
Debt Instrument [Line Items]
Carrying Amount	$ 221,510	$ 17,500	$ 0	$ 1,766	$ 0	$ 14,262	$ 0	$ 5,248	$ 0	$ 963	$ 0	$ 427	$ 0	$ 4,488	$ 0	$ 123	$ 0		$ 130,000	$ 17,500	$ 2,629	$ 0	$ 16,073	$ 0	$ 11,263	$ 0	$ 32,679	$ 0
Capital Lease Obligations	1,589
Less current portion	21,679	0
Total long-term and capital lease obligations	199,831	17,500
Debt Premium	2,238			0		1,334		108		0		0		597		0			0		199		0		0		0
Maximum borrowing capacity																		$ 175,000	$ 175,000		$ 3,900		$ 19,500		$ 23,300		$ 116,700
Stated interest rate				10.00%		15.00%		16.00%		10.00%		10.00%		15.00%		10.00%