Supplemental Consolidating Financial Information Condensed Statement of Cash Flows (Details) (USD $)	3 Months Ended	6 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2014
Change in cash flow entity			$ 3,000,000
Operating cash flow	(35,230,000)	(8,018,000)
Capital expenditures	(4,587,000)	(10,685,000)
Investing activity with subsidiaries	0	0
Other, net	(235,000)	(2,719,000)
Investing cash flow	(4,822,000)	(13,404,000)
Proceeds from Related Party Debt	238,479,000us-gaap_ProceedsFromRelatedPartyDebt	0us-gaap_ProceedsFromRelatedPartyDebt
Repayments of Convertible Debt	(146,401,000)us-gaap_RepaymentsOfConvertibleDebt	0us-gaap_RepaymentsOfConvertibleDebt
Redemption of 7.875% Notes	(222,117,000)us-gaap_RepaymentsOfNotesPayable	(10,000,000)us-gaap_RepaymentsOfNotesPayable
Borrowings under the 2015 ABL Revolver	(2,623,000)
Repayments of Other Long-term Debt	(4,875,000)us-gaap_RepaymentsOfOtherLongTermDebt	(375,000)us-gaap_RepaymentsOfOtherLongTermDebt
Repayments of long-term debt and capital lease obligations	(1,892,000)us-gaap_RepaymentsOfLongTermDebt	(76,000)us-gaap_RepaymentsOfLongTermDebt
Payments for debt modification and issuance costs	(2,623,000)	(20,000)
Payments of debt extinguishment costs	0	(300,000)
Payments of stock-based compensation	(36,588,000)	0
Payment of dividend to related party	(45,374,000)us-gaap_PaymentsOfDividends	0us-gaap_PaymentsOfDividends
Proceeds from sale of common stock	154,836,000	0
Proceeds from Contributions from Affiliates	108,046,000	0
Financing activity with subsidiaries	0	0
Financing cash flow	47,491,000	(5,771,000)
Increase (decrease) in cash and equivalents	7,439,000	(27,193,000)
Cash and equivalents, beginning of period	48,160,000	54,017,000	54,017,000
Cash and equivalents, end of period	55,599,000	26,824,000
Consolidation, Eliminations [Member]
Operating cash flow	0	0
Capital expenditures	0	0
Investing activity with subsidiaries	5,095,000	8,350,000
Other, net	0	0
Investing cash flow	5,095,000	8,350,000
Proceeds from Related Party Debt	0
Repayments of Convertible Debt	0
Redemption of 7.875% Notes	0	0
Borrowings under the 2015 ABL Revolver	0	0
Repayments of the 2015 ABL	0	0
Repayments of Other Long-term Debt	0	0
Repayments of long-term debt and capital lease obligations	0	0
Payments for debt modification and issuance costs	0	0
Payments of debt extinguishment costs		0
Payments of stock-based compensation	0
Proceeds from sale of common stock	0
Proceeds from Contributions from Affiliates	0
Financing activity with subsidiaries	(5,095,000)	(8,350,000)
Financing cash flow	(5,095,000)	(8,350,000)
Increase (decrease) in cash and equivalents	0	0
Cash and equivalents, beginning of period	0	0	0
Cash and equivalents, end of period	0	0
Parent Company [Member] \| Reportable Legal Entities [Member]
Operating cash flow	(255,417,000)	0
Capital expenditures	0	0
Investing activity with subsidiaries	0	0
Other, net	0	0
Investing cash flow	0	0
Proceeds from Related Party Debt	238,479,000
Repayments of Convertible Debt	(146,401,000)
Redemption of 7.875% Notes	0	0
Borrowings under the 2015 ABL Revolver	0	0
Repayments of the 2015 ABL	0	0
Repayments of Other Long-term Debt	0	0
Repayments of long-term debt and capital lease obligations	0	0
Payments for debt modification and issuance costs	0	0
Payments of debt extinguishment costs		0
Payments of stock-based compensation	(36,588,000)
Payment of dividend to related party	(45,374,000)
Proceeds from sale of common stock	154,836,000
Proceeds from Contributions from Affiliates	108,046,000
Financing activity with subsidiaries	0	0
Financing cash flow	272,998,000	0
Increase (decrease) in cash and equivalents	17,581,000	0
Cash and equivalents, beginning of period	0	0	0
Cash and equivalents, end of period	17,581,000	0
Subsidiary Issuer [Member] \| Reportable Legal Entities [Member]
Operating cash flow	221,186,000	(2,459,000)
Capital expenditures	(94,000)	(1,067,000)
Investing activity with subsidiaries	(5,095,000)	(5,750,000)
Other, net	0	0
Investing cash flow	(5,189,000)	(6,817,000)
Proceeds from Related Party Debt	0
Repayments of Convertible Debt	0
Redemption of 7.875% Notes	(222,117,000)	(10,000,000)
Repayments of Other Long-term Debt	(4,875,000)	(375,000)
Repayments of long-term debt and capital lease obligations	0	0
Payments for debt modification and issuance costs	(2,623,000)	(20,000)
Payments of debt extinguishment costs		(300,000)
Payments of stock-based compensation	0
Payment of dividend to related party	0
Proceeds from sale of common stock	0
Proceeds from Contributions from Affiliates	0
Financing activity with subsidiaries	(1,975,000)	0
Financing cash flow	(225,590,000)	(5,695,000)
Increase (decrease) in cash and equivalents	(9,593,000)	(14,971,000)
Cash and equivalents, beginning of period	13,707,000	15,851,000	15,851,000
Cash and equivalents, end of period	4,114,000	880,000
Guarantor Subsidiaries [Member] \| Reportable Legal Entities [Member]
Operating cash flow	(2,054,000)	(889,000)
Capital expenditures	(934,000)	(2,244,000)
Investing activity with subsidiaries	0	(2,600,000)
Other, net	(2,000)	44,000
Investing cash flow	(936,000)	(4,800,000)
Proceeds from Related Party Debt	0
Repayments of Convertible Debt	0
Redemption of 7.875% Notes	0	0
Borrowings under the 2015 ABL Revolver	0	0
Repayments of the 2015 ABL	0	0
Repayments of Other Long-term Debt	0	0
Repayments of long-term debt and capital lease obligations	(1,799,000)	(61,000)
Payments for debt modification and issuance costs	0	0
Payments of debt extinguishment costs		0
Payments of stock-based compensation	0
Payment of dividend to related party	0
Proceeds from sale of common stock	0
Proceeds from Contributions from Affiliates	0
Financing activity with subsidiaries	5,095,000	5,750,000
Financing cash flow	3,296,000	5,689,000
Increase (decrease) in cash and equivalents	306,000	0
Cash and equivalents, beginning of period	0	0	0
Cash and equivalents, end of period	306,000	0
Non-Guarantor Subsidiaries [Member] \| Reportable Legal Entities [Member]
Operating cash flow	1,055,000	(4,670,000)
Capital expenditures	(3,559,000)	(7,374,000)
Investing activity with subsidiaries	0	0
Other, net	(233,000)	(2,763,000)
Investing cash flow	(3,792,000)	(10,137,000)
Proceeds from Related Party Debt	0
Repayments of Convertible Debt	0
Redemption of 7.875% Notes	0	0
Borrowings under the 2015 ABL Revolver	0	0
Repayments of the 2015 ABL	0	0
Repayments of Other Long-term Debt	0	0
Repayments of long-term debt and capital lease obligations	(93,000)	(15,000)
Payments for debt modification and issuance costs	0	0
Payments of debt extinguishment costs		0
Payments of stock-based compensation	0
Proceeds from sale of common stock	0
Financing activity with subsidiaries	1,975,000	2,600,000
Financing cash flow	1,882,000	2,585,000
Increase (decrease) in cash and equivalents	(855,000)	(12,222,000)
Cash and equivalents, beginning of period	34,453,000	38,166,000	38,166,000
Cash and equivalents, end of period	33,598,000	25,944,000
2013 ABL [Member]
Borrowings under the 2015 ABL Revolver		20,000,000
Repayments of the 2015 ABL		$ (15,000,000)

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