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Long-Term Debt (Details) (USD $)
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1 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2013
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Dec. 31, 2012
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Sep. 30, 2013
Credit Facility
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Mar. 31, 2013
Term Loans
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Sep. 30, 2013
Term Loans
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Mar. 31, 2013
March 2013 Amended Credit Facility
Credit Facility
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Mar. 31, 2013
March 2013 Amended Credit Facility
Credit Facility
Maximum
March 8, 2013 to June 29, 2014
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Mar. 31, 2013
March 2013 Amended Credit Facility
Credit Facility
Maximum
June 30, 2014 to June 29, 2015
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Mar. 31, 2013
March 2013 Amended Credit Facility
Credit Facility
Maximum
June 30, 2015 and thereafter
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Mar. 31, 2013
March 2013 Amended Credit Facility
Credit Facility
Minimum
March 8, 2013 to June 29, 2014
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Mar. 31, 2013
March 2013 Amended Credit Facility
Credit Facility
Minimum
June 30, 2014 to June 29, 2015
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Mar. 31, 2013
March 2013 Amended Credit Facility
Credit Facility
Minimum
June 30, 2015 and thereafter
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
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Sep. 30, 2013
March 2013 Amended Credit Facility
Term Loans
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Greater than 3.00
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
2.25 to 3.00
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
1.25 to 2.25
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Less than 1.25
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Maximum
2.25 to 3.00
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Maximum
1.25 to 2.25
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Maximum
Less than 1.25
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Minimum
Greater than 3.00
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Minimum
2.25 to 3.00
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Minimum
1.25 to 2.25
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
December 31, 2013
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Mar. 31, 2013
March 2013 Amended Credit Facility
Term Loans
Each quarter thereafter
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Mar. 31, 2013
March 2013 Amended Credit Facility
Revolving Loans
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Sep. 30, 2013
March 2013 Amended Credit Facility
Revolving Loans
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Jul. 31, 2011
July 2011 Credit Facility
Credit Facility
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Jul. 31, 2011
July 2011 Credit Facility
Term Loans
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Sep. 30, 2013
July 2011 Credit Facility
Term Loans
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Dec. 31, 2012
July 2011 Credit Facility
Term Loans
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Jul. 31, 2011
July 2011 Credit Facility
Revolving Loans
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| Long-term debt | |||||||||||||||||||||||||||||||||
| Less unamortized discount | $ (2,914,000) | $ (3,732,000) | |||||||||||||||||||||||||||||||
| Subtotal | 386,361,000 | 453,918,000 | 389,275,000 | 457,650,000 | |||||||||||||||||||||||||||||
| Less current portion | (34,335,000) | (76,950,000) | |||||||||||||||||||||||||||||||
| Long-term debt, net of current portion | 352,026,000 | 376,968,000 | |||||||||||||||||||||||||||||||
| Maximum borrowing capacity | 50,000,000 | 490,000,000 | 120,000,000 | ||||||||||||||||||||||||||||||
| Additional principal payment required | 50,000,000 | ||||||||||||||||||||||||||||||||
| Original issue discount (as a percent) | 1.00% | ||||||||||||||||||||||||||||||||
| Variable rate basis | LIBOR | ||||||||||||||||||||||||||||||||
| Applicable margin (as a percent) | 6.00% | ||||||||||||||||||||||||||||||||
| Interest rate for term loan (as a percent) | 7.25% | ||||||||||||||||||||||||||||||||
| Minimum quarterly principal payment | 8,575,000 | 6,125,000 | |||||||||||||||||||||||||||||||
| Estimated principal payment based on a percentage of ECF | 7,400,000 | ||||||||||||||||||||||||||||||||
| Excess Cash Flow Prepayment as a Percentage of Consolidated EBITDA | 75.00% | 50.00% | 25.00% | 0.00% | |||||||||||||||||||||||||||||
| Interest rate terms | bear interest at the alternative base rate or LIBOR, plus the applicable margin for each rate that fluctuates with the consolidated leverage ratio | ||||||||||||||||||||||||||||||||
| Funds available under credit facility | 47,000,000 | ||||||||||||||||||||||||||||||||
| Letters of credit outstanding | 3,000,000 | ||||||||||||||||||||||||||||||||
| Debt issuance costs | 2,600,000 | 12,000,000 | |||||||||||||||||||||||||||||||
| Increase in effective borrowing rate (as a percent) | 0.58% | ||||||||||||||||||||||||||||||||
| Principal payment | 50,000,000 | ||||||||||||||||||||||||||||||||
| Reduction in maximum borrowing capacity | 70,000,000 | ||||||||||||||||||||||||||||||||
| Effective interest rate under the Term Loans (as a percent) | 8.10% | ||||||||||||||||||||||||||||||||
| Write-off of previously existing debt issuance costs to interest expense | $ 1,300,000 | ||||||||||||||||||||||||||||||||
| Consolidated leverage ratio | 3.08 | 4.00 | 3.50 | 3.25 | 3.00 | 2.25 | 1.25 | 3.00 | 2.25 | 1.25 | |||||||||||||||||||||||
| Consolidated fixed charge coverage ratio | 2.16 | 1.05 | 1.10 | 1.10 | |||||||||||||||||||||||||||||