Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Borrowings - Schedule of Long-term Debt (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Senior Notes	Sep. 30, 2012 Senior Notes	Sep. 30, 2013 Senior Notes 6 7/8% Senior Notes Maturing July 2015	Sep. 30, 2012 Senior Notes 6 7/8% Senior Notes Maturing July 2015	Sep. 30, 2013 Senior Notes 8 1/8% Senior Notes Maturing June 2016	Sep. 30, 2012 Senior Notes 8 1/8% Senior Notes Maturing June 2016	Sep. 30, 2013 Senior Notes 12% Senior Secured Notes Maturing October 2017	Sep. 30, 2012 Senior Notes 12% Senior Secured Notes Maturing October 2017	Sep. 30, 2013 Senior Notes 6 5/8% Senior Secured Notes Maturing April 2018	Sep. 30, 2012 Senior Notes 6 5/8% Senior Secured Notes Maturing April 2018	Sep. 30, 2013 Senior Notes 9 1/8% Senior Notes Maturing June 2018	Sep. 30, 2012 Senior Notes 9 1/8% Senior Notes Maturing June 2018	Sep. 30, 2013 Senior Notes 9 1/8% Senior Notes Maturing May 2019	Sep. 30, 2012 Senior Notes 9 1/8% Senior Notes Maturing May 2019	Sep. 30, 2013 Senior Notes 7 1/2% Senior Notes Maturing September 2021 [Member] [Member]	Sep. 30, 2012 Senior Notes 7 1/2% Senior Notes Maturing September 2021 [Member] [Member]	Sep. 30, 2013 Senior Notes 7 1/4% Senior Notes Maturing February 2023 [Member]	Feb. 01, 2013 Senior Notes 7 1/4% Senior Notes Maturing February 2023 [Member]	Sep. 30, 2012 Senior Notes 7 1/4% Senior Notes Maturing February 2023 [Member]	Sep. 30, 2013 Senior Notes TEU Senior Amortizing Notes Maturing August 2013	Sep. 30, 2012 Senior Notes TEU Senior Amortizing Notes Maturing August 2013	Sep. 30, 2013 Senior Notes TEU Senior Amortizing Notes Maturing August 2015	Sep. 30, 2012 Senior Notes TEU Senior Amortizing Notes Maturing August 2015	Sep. 30, 2013 Mandatory Convertible Subordinated Debt	Sep. 30, 2012 Mandatory Convertible Subordinated Debt	Sep. 30, 2013 Junior Subordinated Notes	Sep. 30, 2012 Junior Subordinated Notes	Jun. 15, 2006 Junior Subordinated Notes	Sep. 30, 2013 Cash Secured Loan	Sep. 30, 2012 Cash Secured Loan	Sep. 30, 2013 Other Secured Notes Payable	Sep. 30, 2012 Other Secured Notes Payable
Debt Instrument [Line Items]
Debt instrument stated interest rate (percent)					6.875%	6.875%	8.125%	8.125%	12.00%	12.00%	6.625%	6.625%	9.125%	9.125%	9.125%	9.125%	7.50%	0.00%	7.25%	7.25%	0.00%							7.987%		7.987%
Senior notes					$ 0	$ 172,454	$ 172,879	$ 172,879			$ 300,000	$ 300,000	$ 298,000	$ 300,000	$ 235,000	$ 235,000	$ 200,000	$ 0	$ 200,000		$ 0	$ 0	$ 316	$ 16,141	$ 23,500
Unamortized debt discounts	(5,160)	(3,082)	(5,160)	(3,082)																								47,100
Total debt, net										250,000																0	9,402	53,670	51,603		22,368	227,368	19,285	8,758
Notes Payable	$ 1,512,183	$ 1,498,198	$ 1,416,860	$ 1,201,067