Supplemental Consolidating Financial Information Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	2 Months Ended	9 Months Ended
	Feb. 27, 2015	Sep. 30, 2015	Sep. 30, 2014
Quarterly Financial Information, Quarterly Charges and Credits, Amount Reconciling to Previously Reported Results			$ 3,000
Operating cash flow		$ 132,513	40,671
Capital expenditures		(13,575)	(38,836)
Net proceeds from sale of long-term assets		0	5,256
Investing activity with subsidiaries		0	0
Other, net		(67)	(3,736)
Investing cash flow		(13,642)	(37,316)
Proceeds from Related Party Debt		238,479	0
Repurchase of Convertible Notes		(146,401)	0
Redemption of 7.875% Notes		(222,117)	(10,000)
Repayments of the 2013 ABL Term Loan		(4,875)	(1,125)
Repayments of long-term debt and capital lease obligations		(3,143)	(589)
Payments for debt modification and issuance costs		(2,738)	(266)
Payments of debt extinguishment costs		0	(300)
Payments of stock-based compensation	$ (683,000)	(36,588)	0
Payment of dividend to related party		(45,374)	0
Proceeds from sale of common stock		154,836	0
Proceeds from capital contributions		89,604	0
Advance from related party		18,445	0
Payment of advance from related party		(18,445)	0
Financing activity with subsidiaries		0	0
Financing cash flow		21,683	(12,280)
Increase (decrease) in cash and equivalents		140,554	(8,925)
Cash and equivalents, beginning of period		48,160	54,017
Cash and equivalents, end of period		188,714	45,092
Consolidation, Eliminations [Member]
Operating cash flow		0	0
Capital expenditures		0	0
Net proceeds from sale of long-term assets			0
Investing activity with subsidiaries		93,304	6,033
Other, net		0	0
Investing cash flow		93,304	6,033
Proceeds from Related Party Debt		0
Repurchase of Convertible Notes		0
Redemption of 7.875% Notes		0	0
Repayments of the 2013 ABL Term Loan		0	0
Borrowings under the 2015 ABL		0	0
Repayments of the 2015 ABL		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 capital contributions		0
Advance from related party		0
Payment of advance from related party		0
Financing activity with subsidiaries		(93,304)	(6,033)
Financing cash flow		(93,304)	(6,033)
Increase (decrease) in cash and equivalents		0	0
Cash and equivalents, beginning of period		0	0
Cash and equivalents, end of period		0	0
Parent Company [Member] | Reportable Legal Entities [Member]
Operating cash flow		(254,163)	0
Capital expenditures		0	0
Net proceeds from sale of long-term assets			0
Investing activity with subsidiaries		0	0
Other, net		0	0
Investing cash flow		0	0
Proceeds from Related Party Debt		238,479
Repurchase of Convertible Notes		(146,401)
Redemption of 7.875% Notes		0	0
Repayments of the 2013 ABL Term Loan		0	0
Borrowings under the 2015 ABL		0	0
Repayments of the 2015 ABL		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)
Payment of dividend to related party		(45,374)
Proceeds from sale of common stock		154,836
Proceeds from capital contributions		89,604
Advance from related party		18,445
Payment of advance from related party		(18,445)
Financing activity with subsidiaries		0	0
Financing cash flow		254,556	0
Increase (decrease) in cash and equivalents		393	0
Cash and equivalents, beginning of period		0	0
Cash and equivalents, end of period		393	0
Subsidiary Issuer [Member] | Reportable Legal Entities [Member]
Operating cash flow		329,032	14,674
Capital expenditures		(1,428)	(2,689)
Net proceeds from sale of long-term assets			0
Investing activity with subsidiaries		(93,304)	(5,463)
Other, net		0	0
Investing cash flow		(94,732)	(8,152)
Proceeds from Related Party Debt		0
Repurchase of Convertible Notes		0
Redemption of 7.875% Notes		(222,117)	(10,000)
Repayments of the 2013 ABL Term Loan		(4,875)	(1,125)
Repayments of long-term debt and capital lease obligations		0	0
Payments for debt modification and issuance costs		(2,738)	(266)
Payments of debt extinguishment costs			(300)
Payments of stock-based compensation		0
Payment of dividend to related party		0
Proceeds from sale of common stock		0
Proceeds from capital contributions		0
Advance from related party		0
Payment of advance from related party		0
Financing activity with subsidiaries		(1,975)	0
Financing cash flow		(231,705)	(11,691)
Increase (decrease) in cash and equivalents		2,595	(5,169)
Cash and equivalents, beginning of period		13,707	15,851
Cash and equivalents, end of period		16,302	10,682
Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Operating cash flow		657	3,243
Capital expenditures		(2,192)	(8,748)
Net proceeds from sale of long-term assets			1,167
Investing activity with subsidiaries		0	(570)
Other, net		0	0
Investing cash flow		(2,192)	(8,151)
Proceeds from Related Party Debt		0
Repurchase of Convertible Notes		0
Redemption of 7.875% Notes		0	0
Repayments of the 2013 ABL Term Loan		0	0
Borrowings under the 2015 ABL		0	0
Repayments of the 2015 ABL		0	0
Repayments of long-term debt and capital lease obligations		(2,910)	(555)
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 capital contributions		0
Advance from related party		0
Payment of advance from related party		0
Financing activity with subsidiaries		93,304	5,463
Financing cash flow		90,394	4,908
Increase (decrease) in cash and equivalents		88,859	0
Cash and equivalents, beginning of period		0	0
Cash and equivalents, end of period		88,859	0
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Operating cash flow		56,987	22,754
Capital expenditures		(9,955)	(27,399)
Net proceeds from sale of long-term assets			4,089
Investing activity with subsidiaries		0	0
Other, net		(67)	(3,736)
Investing cash flow		(10,022)	(27,046)
Proceeds from Related Party Debt		0
Repurchase of Convertible Notes		0
Redemption of 7.875% Notes		0	0
Repayments of the 2013 ABL Term Loan		0	0
Borrowings under the 2015 ABL		0	0
Repayments of the 2015 ABL		0	0
Repayments of long-term debt and capital lease obligations		(233)	(34)
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	570
Financing cash flow		1,742	536
Increase (decrease) in cash and equivalents		48,707	(3,756)
Cash and equivalents, beginning of period		34,453	38,166
Cash and equivalents, end of period		$ 83,160	34,410
2013 ABL [Member]
Borrowings under the 2015 ABL			24,000
Repayments of the 2015 ABL			$ (24,000)