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Borrowings - Narrative (Details) TEUs in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 30, 2014 | Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Sep. 30, 2014 USD ($) shares | Nov. 10, 2014 lender | Apr. 30, 2014 USD ($) | Jul. 17, 2012 TEUs | Jan. 15, 2010 USD ($)
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Amount of available borrowings under the Secured Revolving Credit Facility |  | $ 101,700,000 |  | $ 101,700,000 |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Consolidated Tangible Net Worth |  | 253,300,000 |  | 253,300,000 |  |  |  |  |  |
Loss on extinguishment of debt |  | 0 | $ 19,764,000 | 0 | $ 19,917,000 |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Unamortized accretion |  | 3,829,000 |  | 3,829,000 |  | $ 4,399,000 |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Long-term debt |  | 1,554,207,000 |  | 1,554,207,000 |  | 1,535,433,000 |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Minimum consolidated tangible net worth |  | $ 85,000,000 |  | $ 85,000,000 |  |  |  |  |  |
Percentage of debt, at par, required to be offered for purchase |  | 10.00% |  | 10.00% |  |  |  |  |  |
Amount of original debt that could be repurchased |  | $ 27,500,000 |  | $ 27,500,000 |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Unamortized accretion |  | 3,829,000 |  | 3,829,000 |  | 4,399,000 |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ 1,430,762,000 |  | $ 1,430,762,000 |  | $ 1,435,183,000 |  |  |  |
Senior Notes | 8 1/8% Senior Notes Maturing June 2016 |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  | 8.125% |  | 8.125% |  | 8.125% |  |  |  |
Senior Notes | 6 5/8% Senior Secured Notes April 2018 |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  | 6.625% |  | 6.625% |  | 6.625% |  |  |  |
Senior Notes | 9 1/8% Senior Notes Maturing June 2018 |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Call price and make-whole premiums provided for by 2018 Notes |  | $ 17,200,000 |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  | $ 19,800,000 |  |  |  |  |  |  |  |
Senior Notes | 9 1/8% Senior Notes Maturing May 2019 |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  | 9.125% |  | 9.125% |  | 9.125% |  |  |  |
Senior Notes | 5 3/4% Senior Notes Maturing June 2019 |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt |  |  |  |  |  |  |  | $ 325,000,000 |  |
Stated interest rate on debt instrument (percent) |  | 5.75% |  | 5.75% |  | 5.75% |  | 5.75% |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | 100.00% |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage |  | 35.00% |  |  |  |  |  |  |  |
Senior Notes | 5 3/4% Senior Notes Maturing June 2019 | Optional Redemption Under Indenture |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  | 105.75% |  | 105.75% |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage |  | 65.00% |  |  |  |  |  |  |  |
Senior Notes | 5 3/4% Senior Notes Maturing June 2019 | In Compliance |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  | 100.00% |  | 100.00% |  | 0.00% |  |  |  |
Senior Notes | 7 1/2% Senior Notes Maturing September 2021 |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  | 7.50% |  | 7.50% |  | 7.50% |  |  |  |
Senior Notes | 7 1/4% Senior Notes Maturing February 2023 |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  | 7.25% |  | 7.25% |  | 7.25% |  |  |  |
Senior Notes | Tangible Equity Units |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  |  |  |  |  |  |  |  | 7.50% |
Tangible Equity Units TEUs Converted | shares |  |  |  |  |  | 890,000 |  |  |  |
Stock Exchange, Debt Related to Tangible Equity Unit |  |  |  |  |  | $ 2,400,000 |  |  |  |
Tangible Capital [Abstract] |  |  |  |  |  |  |  |  |  |
Tangible Equity Units (TEUs) issued during period, (units) | TEUs |  |  |  |  |  |  |  |  | 4.6 |
Junior Subordinated Notes |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt |  | $ 103,100,000 |  | $ 103,100,000 |  |  |  |  |  | $ 75,000,000
Stated interest rate on debt instrument (percent) |  | 7.987% |  | 7.987% |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |
Effective period of debt instrument interest rate |  |  |  | 10 years |  |  |  |  |  |
Unamortized accretion |  | $ 43,500,000 |  | $ 43,500,000 |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Long-term debt |  | 57,287,000 |  | $ 57,287,000 |  | 55,737,000 |  |  |  |
Cash Secured Loan |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Three-month LIBOR |  |  |  | LIBOR |  |  |  |  |  |
Long-term debt |  | 22,368,000 |  | $ 22,368,000 |  | 22,368,000 |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Outstanding borrowings under the Secured Revolving Credit Facility |  | 28,300,000 |  | 28,300,000 |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Long-term debt |  | 20,000,000 |  | 20,000,000 |  | 0 |  |  |  |
Other Secured Notes Payable |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ 23,790,000 |  | $ 23,790,000 |  | 22,145,000 |  |  |  |
Weighted average fixed interest rate of debt (percent) |  | 4.14% |  | 4.14% |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Credit facility borrowing capacity |  | $ 150,000,000 |  | $ 150,000,000 |  |  |  |  |  |
Inventory assets pledged as collateral |  | 1,000,000,000 |  | $ 1,000,000,000 |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Number of Lenders | lender |  |  |  |  |  |  | 4 |  |  |
Line of Credit Facility, Expiration Period |  |  |  | 1 year |  |  |  |  |  |
Letter of Credit, Cash Secured [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Letters of credit secured using cash collateral |  | 13,200,000 |  | $ 13,200,000 |  | $ 39,100,000 |  |  |  |
Revolving Credit Facility Future Amount [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |
Line of Credit, Current |  | 20,000,000 |  | 20,000,000 |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Long-term Line of Credit, Noncurrent |  | $ 130,000,000 |  | $ 130,000,000 |  |  |  |  |  |
Number of Lenders No Credit Extension [Domain] |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Number of Lenders | lender |  |  |  |  |  |  | 1 |  |  |
Number of Lenders Extending Credit Facility [Domain] |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Number of Lenders | lender |  |  |  |  |  |  | 3 |  |  |
London Interbank Offered Rate (LIBOR) [Member] | Cash Secured Loan |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |
Spread on variable interest rate (percent) |  |  |  | 0.40% |  |  |  |  |  |

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- Definition Conversion of Debt, Triggering Event, Percentage of Debt Instrument, at Par, Required to be Offered for Purchase + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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