Supplemental Consolidating Financial Information Condensed Statement of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Operating cash flow	$ 38,183		$ 62,445
Capital expenditures	(25,322)		(21,486)
Investing activity with subsidiaries	0	[1]	0
Other, net	(978)		11,008
Investing cash flow	(26,300)		(10,478)
Issuances of long-term debt	0		429,415
Repayments of long-term debt and capital lease obligations	(10,896)		(412,076)
Borrowings under the ABL Revolver	24,000		36,590
Repayments of the ABL Revolver	(24,000)		(36,590)
Repayments of the Credit Facility Revolver	0		(40,000)
Payments for debt modification and issuance costs	(191)		(13,364)
Payments of debt extinguishment costs	(300)		0
Financing activity with subsidiaries	0	[1]	0
Financing cash flow	(11,387)		(36,025)
Increase (decrease) in cash and equivalents	496		15,942
Cash and equivalents	54,513		66,968
Consolidation, Eliminations [Member]
Operating cash flow	0		0
Capital expenditures	0		0
Investing activity with subsidiaries	3,496	[1]	451
Other, net	0		0
Investing cash flow	3,496		451
Issuances of long-term debt	0		0
Repayments of long-term debt and capital lease obligations	0		0
Borrowings under the ABL Revolver	0		0
Repayments of the ABL Revolver	0		0
Repayments of the Credit Facility Revolver	0		0
Payments for debt modification and issuance costs	0		0
Payments of debt extinguishment costs	0		0
Financing activity with subsidiaries	(3,496)	[1]	(451)
Financing cash flow	(3,496)		(451)
Increase (decrease) in cash and equivalents	0		0
Cash and equivalents	0		0
Parent Company [Member] | Reportable Legal Entities [Member]
Operating cash flow	0		(4,420)
Capital expenditures	0		0
Investing activity with subsidiaries	0	[1]	0
Other, net	0		1,819
Investing cash flow	0		1,819
Issuances of long-term debt	0		0
Repayments of long-term debt and capital lease obligations	0		0
Borrowings under the ABL Revolver	0		0
Repayments of the ABL Revolver	0		0
Repayments of the Credit Facility Revolver	0		0
Payments for debt modification and issuance costs	0		0
Payments of debt extinguishment costs	0		0
Financing activity with subsidiaries	0	[1]	0
Financing cash flow	0		0
Increase (decrease) in cash and equivalents	0		(2,601)
Cash and equivalents	0		0
Subsidiary Issuer [Member] | Reportable Legal Entities [Member]
Operating cash flow	22,112		35,695
Capital expenditures	(1,607)		(1,657)
Investing activity with subsidiaries	(2,926)	[1]	0
Other, net	0		0
Investing cash flow	(4,533)		(1,657)
Issuances of long-term debt	0		429,415
Repayments of long-term debt and capital lease obligations	(10,750)		(411,941)
Borrowings under the ABL Revolver	24,000		36,590
Repayments of the ABL Revolver	(24,000)		(36,590)
Repayments of the Credit Facility Revolver	0		(40,000)
Payments for debt modification and issuance costs	(191)		(13,364)
Payments of debt extinguishment costs	(300)		0
Financing activity with subsidiaries	0	[1]	393
Financing cash flow	(11,241)		(35,497)
Increase (decrease) in cash and equivalents	6,338		(1,459)
Cash and equivalents	22,189		11,245
Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Operating cash flow	2,630		8,968
Capital expenditures	(4,910)		(12,013)
Investing activity with subsidiaries	(570)	[1]	(451)
Other, net	44		3,598
Investing cash flow	(5,436)		(8,866)
Issuances of long-term debt	0		0
Repayments of long-term debt and capital lease obligations	(120)		(102)
Borrowings under the ABL Revolver	0		0
Repayments of the ABL Revolver	0		0
Repayments of the Credit Facility Revolver	0		0
Payments for debt modification and issuance costs	0		0
Payments of debt extinguishment costs	0		0
Financing activity with subsidiaries	2,926	[1]	0
Financing cash flow	2,806		(102)
Increase (decrease) in cash and equivalents	0		0
Cash and equivalents	0		0
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]
Operating cash flow	13,441		22,202
Capital expenditures	(18,805)		(7,816)
Investing activity with subsidiaries	0	[1]	0
Other, net	(1,022)		5,591
Investing cash flow	(19,827)		(2,225)
Issuances of long-term debt	0		0
Repayments of long-term debt and capital lease obligations	(26)		(33)
Borrowings under the ABL Revolver	0		0
Repayments of the ABL Revolver	0		0
Repayments of the Credit Facility Revolver	0		0
Payments for debt modification and issuance costs	0		0
Payments of debt extinguishment costs	0		0
Financing activity with subsidiaries	570	[1]	58
Financing cash flow	544		25
Increase (decrease) in cash and equivalents	(5,842)		20,002
Cash and equivalents	$ 32,324		$ 55,723

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