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Long-Term Debt (Details) (USD $)
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3 Months Ended | 3 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | |||||||||||
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Sep. 30, 2014
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Dec. 31, 2013
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Sep. 30, 2014
Interest rate swap
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Sep. 30, 2014
Senior credit facilities
Term loan facility
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Dec. 31, 2013
Senior credit facilities
Term loan facility
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Jun. 30, 2011
Senior credit facilities
Term loan facility
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Sep. 30, 2014
Senior credit facilities
Term loan facility
Interest rate swap
item
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Sep. 30, 2014
Senior credit facilities
Term loan facility
Minimum
Interest rate swap
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Sep. 30, 2014
Senior credit facilities
Term loan facility
First option
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Sep. 30, 2014
Senior credit facilities
Term loan facility
First option
Prime
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Sep. 30, 2014
Senior credit facilities
Term loan facility
First option
Federal funds
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Sep. 30, 2014
Senior credit facilities
Term loan facility
First option
Federal funds
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Sep. 30, 2014
Senior credit facilities
Term loan facility
First option
One month London Interbank Offered Rate
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Sep. 30, 2014
Senior credit facilities
Term loan facility
First option
Fixed rate
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Sep. 30, 2014
Senior credit facilities
Term loan facility
Second option
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Sep. 30, 2014
Senior credit facilities
Term loan facility
Second option
London Interbank Offered Rate
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Mar. 31, 2014
Senior credit facilities
Term loan facility
Second option
Fixed rate
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
Maximum
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
First option
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
First option
London Interbank Offered Rate
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Mar. 31, 2014
Senior credit facilities
Revolving credit facility
Second option
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
Second option
Prime
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
Second option
Federal funds
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
Second option
Federal funds
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
Second option
One month London Interbank Offered Rate
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Sep. 30, 2014
Senior credit facilities
Revolving credit facility
Second option
One month London Interbank Offered Rate
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| Long-term debt | |||||||||||||||||||||||||||
| Total long-term debt | $ 110,266,000 | $ 110,994,000 | |||||||||||||||||||||||||
| Less current maturities | 971,000 | 971,000 | 971,000 | 971,000 | |||||||||||||||||||||||
| Long-term debt, less current maturities | 109,295,000 | 110,023,000 | 109,295,000 | 110,023,000 | |||||||||||||||||||||||
| Unamortized discount on issuance of debt | 631,000 | 766,000 | 1,250,000 | ||||||||||||||||||||||||
| Long-term debt, additional disclosure | |||||||||||||||||||||||||||
| Borrowings under senior credit facility | 125,000,000 | 80,000,000 | |||||||||||||||||||||||||
| Additional fixed interest rate spread (as a percent) | 3.25% | 4.25% | 1.75% | 1.25% | |||||||||||||||||||||||
| Variable rate basis | Prime Rate | Federal funds | London Interbank Offered Rate for a one month interest period | London Interbank Offered Rate | London Interbank Offered Rate | Prime Rate | Federal funds | London Interbank Offered Rate for a one month interest period | |||||||||||||||||||
| Interest rate added to variable rate (as a percent) | 0.50% | 0.50% | 1.00% | ||||||||||||||||||||||||
| Additional interest margin added to fixed and variable rates (as a percent) | 1.00% | 1.50% | |||||||||||||||||||||||||
| Fixed interest rate base (as a percent) | 1.50% | ||||||||||||||||||||||||||
| Remaining borrowing availability | 46,464,000 | ||||||||||||||||||||||||||
| Annual acquisitions allowed | 10,000,000 | ||||||||||||||||||||||||||
| Fixed charge coverage ratio to be maintained if certain minimum availability under the credit facility is not maintained. | 1.0 | ||||||||||||||||||||||||||
| Percentage of net cash proceeds of certain asset sales, certain insurance or condemnation events, requirement for additional principal prepayments | 100.00% | ||||||||||||||||||||||||||
| Period before end of the fiscal year, for additional principal prepayments of debt, from excess cash flow | 150 days | ||||||||||||||||||||||||||
| Percentage of excess cash flow paid as additional principal prepayments | 50.00% | ||||||||||||||||||||||||||
| Reduced percentage of excess cash flow paid as additional principal prepayments upon achievement of certain leverage ratio thresholds, one | 25.00% | ||||||||||||||||||||||||||
| Reduced percentage of excess cash flow paid as additional principal prepayments upon achievement of certain leverage ratio thresholds, two | 0.00% | ||||||||||||||||||||||||||
| Length of time after closing date for entering into a hedge | 90 days | ||||||||||||||||||||||||||
| Percentage of aggregate outstanding principal amount of debt hedged | 25.00% | ||||||||||||||||||||||||||
| Notional amount | 50,000,000 | 50,000,000 | |||||||||||||||||||||||||
| Negative fair value included in other long-term liabilities | 64,000 | ||||||||||||||||||||||||||
| Number of financial institutions for which the entity is exposed to counterparty credit risk | 1 | ||||||||||||||||||||||||||
| Fixed interest rate on derivative (as a percent) | 6.335% | 6.335% | |||||||||||||||||||||||||
| Interest rate added to variable rate (as a percent) | 4.25% | 4.25% | |||||||||||||||||||||||||
| LIBOR floor (as a percent) | 1.50% | 1.50% | |||||||||||||||||||||||||
| Outstanding borrowings | $ 33,500,000 | ||||||||||||||||||||||||||