Asset-based Lending Facility [Abstract]

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- Definition

Debt Instrument, Covenant Compliance, Fixed Charge Coverage Ratio, Minimum Credit Availability Threshold for Covenant Requirement, Amount

+ References

No definition available.

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- Definition

Minimum threshold of credit facility availability at which fixed charge coverage ratio covenant requirements become applicable.

+ References

No definition available.

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Debt Instrument, Covenant Compliance, Fixed Charge Coverage Ratio, Required Minimum (if availability is less than 15% of maximum availability)

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No definition available.

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- Definition

Debt Instrument, Covenant Compliance, Required Ratio of Fixed Assets NOLV to Term Loan Indebtedness at any June 30 or December 31, Minimum

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Default Penalty, Variable Rate Increase Provision - amount by which basis spread will increase in event of default

+ References

No definition available.

+ Details

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- Definition

Senior Notes minimum outstanding balance for which the Term Loan accelerated maturity date is dependent

+ References

No definition available.

+ Details

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- Definition

Minimum amount of optional principal prepayment.

+ References

No definition available.

+ Details

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- Definition

The original issue discount rate for the funds borrowed under the debt agreement.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Asset Disposition, Redemption Price, Percentage

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Change in Control Redemption Price, Percentage

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing limit for letters of credit under line of credit facility.

+ References

No definition available.

+ Details

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- Definition

Senior Secured Term Loan [Abstract]

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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- Definition

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

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ 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

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts 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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No definition available.

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Debt (Details)	Nov. 08, 2017 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 18, 2014 USD ($)
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities		$ 463,805,000	$ 461,665,000
Debt Issuance Costs, Net		8,340,000	9,948,000
Debt Instrument, Unamortized Discount		$ (2,855,000)	$ (3,387,000)
Debt Instrument, Interest Rate, Effective Percentage		10.46%	10.46%
Senior Secured Revolving Asset-based Lending Facility [Abstract]
Amount outstanding		$ 475,000,000	$ 475,000,000
Revolving Asset-Based Lending Facility [Member] \| Line of Credit [Member]
Senior Secured Revolving Asset-based Lending Facility [Abstract]
Maximum borrowing capacity	$ 75,000,000
Letters of Credit Outstanding, Amount		9,700,000
Borrowing available		57,600,000
Debt Instrument, Covenant Compliance, Fixed Charge Coverage Ratio, Minimum Credit Availability Threshold for Covenant Requirement, Percentage	15.00%
Debt Instrument, Covenant Compliance, Fixed Charge Coverage Ratio, Minimum Credit Availability Threshold for Covenant Requirement, Amount	$ 11,250,000.00
Minimum [Member] \| Revolving Asset-Based Lending Facility [Member] \| Line of Credit [Member] \| London Interbank Offered Rate (LIBOR) or Bank Base Rate [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Basis Spread on Variable Rate	1.75%
Minimum [Member] \| Revolving Asset-Based Lending Facility [Member] \| Line of Credit [Member] \| Covenant Compliance Date, Trailing 12 Months [Member]
Senior Secured Revolving Asset-based Lending Facility [Abstract]
Debt Instrument, Covenant Compliance, Fixed Charge Cover Ratio, Required Minimum	1.00
Maximum [Member] \| Revolving Asset-Based Lending Facility [Member] \| Line of Credit [Member]
Senior Secured Revolving Asset-based Lending Facility [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity, Letters of Credit Sub-Limit	$ 30,000,000
Maximum [Member] \| Revolving Asset-Based Lending Facility [Member] \| Line of Credit [Member] \| London Interbank Offered Rate (LIBOR) or Bank Base Rate [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Basis Spread on Variable Rate	3.25%
Term Loan [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Original issue discount Rate, Percentage	2.00%
Senior Notes [Abstract]
Debt Instrument, Face Amount	$ 175,000,000
Term Loan [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Basis Spread on Variable Rate	7.75%
Term Loan [Member] \| Bank Base Rate [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Basis Spread on Variable Rate	6.75%
Term Loan [Member] \| Basis Spread on Variable Rate [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Default Penalty, Variable Rate Increase Provision	2.00%
Term Loan [Member] \| Term Loan [Member]
Senior Secured Revolving Asset-based Lending Facility [Abstract]
Amount outstanding		175,000,000	175,000,000
Term Loan [Member] \| Minimum [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Optional Principal Payment, Minimum	$ 5,000,000
Debt Instrument, Covenant Compliance, Ratio of Fixed Assets to Term Loan Indebtedness, Required Minimum	1.50
Term Loan [Member] \| Minimum [Member] \| December 14, 2021 [Member]
Senior Secured Term Loan [Abstract]
Debt Instrument, Maturity Acceleration Terms, Senior Notes Balance Accelerates Term Loan Maturity	$ 15,000,000
Senior Notes [Member]
Senior Notes [Abstract]
Debt Instrument, Face Amount				$ 300,000,000
Debt Instrument, Interest Rate, Stated Percentage				6.125%
Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Change in Control Redemption Price, Percentage				101.00%
Debt Instrument, Redeemable with Equity Issuance Proceeds, Required Repurchase Due to Asset Disposition, Redemption Price, Percentage				100.00%
Senior Notes [Member] \| Senior Notes [Member]
Senior Secured Revolving Asset-based Lending Facility [Abstract]
Amount outstanding		$ 300,000,000	$ 300,000,000