Additional increased borrowing capacity that the company can borrow under line under certain terms.

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Percentage of aggregate principal amount of the then total outstanding notes to declare the principal, premium, if any, interest and any other monetary obligations on all the then-outstanding notes to be due and payable immediately upon event of default

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Increased borrowing capacity under certain conditions

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Letters of credit maximum maximum borrowing capacity and the ABL facility

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer at a maximum redemption price on or after April 1, 2017

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer at a minimum redemption price on or after April 1, 2017

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No definition available.

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- Definition

Prepayment % for asset sales and casualty events

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Prepayment % of annual excess cash flow

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer upon a change of control

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No definition available.

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- Definition

Swingline loans available

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No definition available.

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- Definition

Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.

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- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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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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Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

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No definition available.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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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.

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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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Amount of long-term debt and capital lease obligation maturing in the remainder of the fiscal year following the latest fiscal year ended.

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No definition available.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Additional Debt (Details) (USD $)	12 Months Ended
Additional Debt (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2014	Apr. 01, 2014
Debt Instrument [Line Items]
Long-term Debt	$ 766,796,000us-gaap_LongTermDebt			$ 820,000,000us-gaap_LongTermDebt
Long-term debt, current maturities	100,000,000us-gaap_LongTermDebtCurrent	0us-gaap_LongTermDebtCurrent
Debt discount	2,300,000
Debt Issuance Cost	20,700,000us-gaap_DebtIssuanceCosts
Amortization of debt issuance costs	5,848,000us-gaap_AmortizationOfFinancingCosts	0us-gaap_AmortizationOfFinancingCosts	0us-gaap_AmortizationOfFinancingCosts
Debt Instrument, Fee Amount	3,951,000us-gaap_DebtInstrumentFeeAmount
Senior unsecured notes [Member]
Debt Instrument [Line Items]
Long-term Debt	360,000,000
Debt Instrument, Interest Rate, Stated Percentage					6.00%
Debt Instrument, Redemption Price, Percentage	100.00%
Minimum redemption price on or after April 1, 2017	100.00%
Maximum redemption price on or after April 1, 2017	104.50%
Redemption price, change of control	101.00%
Event of default percentage	25.00%
ABL Facility [Member]
Debt Instrument [Line Items]
Repayments of Debt	37,500,000
Maximum Borrowing Capacity				75,000,000
Current Borrowing Capacity	64,600,000
Additional borrowing capacity that may be increased by under ABL				35,000,000
Letters of credit maximum borrowing capacity				35,000,000
Swingline loans available				20,000,000
Line of Credit Facility, Commitment Fee Percentage	0.33%
Senior secured term loan [Member]
Debt Instrument [Line Items]
Long-term Debt	406,796,000
Increased borrowing capacity under certain conditions	225,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.50%
Repayments of Debt	51,150,000
Obligated payments to be remitted in 2015	$ 26,597,000
Prepayment % of annual excess cash flow	50.00%
Prepayment % for asset sales and casualty events	100.00%