Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified
|
6 Months Ended |
|
|
Jun. 30, 2013
|
Dec. 31, 2012
|
Jun. 30, 2011
|
Long-term debt |
|
|
|
Less current maturities |
$ 971
|
$ 971
|
|
Long-term debt, less current maturities |
110,509
|
110,995
|
|
Interest rate swap
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Notional amount |
50,000
|
|
|
Fixed interest rate on derivative (as a percent) |
6.335%
|
|
|
Variable rate basis |
LIBOR
|
|
|
Interest rate added to variable rate (as a percent) |
4.25%
|
|
|
LIBOR floor (as a percent) |
1.50%
|
|
|
Senior credit facilities | Term Loan
|
|
|
|
Long-term debt |
|
|
|
Total long-term debt |
111,480
|
111,966
|
|
Less current maturities |
971
|
971
|
|
Long-term debt, less current maturities |
110,509
|
110,995
|
|
Unamortized discount on issuance of debt |
857
|
946
|
1,250
|
Long-term debt, additional disclosure |
|
|
|
Borrowings under senior credit facility |
125,000
|
|
|
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%
|
|
|
Senior credit facilities | Term Loan | Interest rate swap
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Length of time after closing date for entering into a hedge |
90 days
|
|
|
Notional amount |
50,000
|
|
|
Negative fair value included in other long-term liabilities |
410
|
|
|
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%
|
|
|
Variable rate basis |
LIBOR
|
|
|
Interest rate added to variable rate (as a percent) |
4.25%
|
|
|
LIBOR floor (as a percent) |
1.50%
|
|
|
Senior credit facilities | Term Loan | Minimum | Interest rate swap
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Percentage of aggregate outstanding principal amount of debt hedged |
25.00%
|
|
|
Senior credit facilities | Term Loan | First option
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Additional fixed interest rate spread (as a percent) |
3.25%
|
|
|
Senior credit facilities | Term Loan | First option | Prime
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
Prime Rate
|
|
|
Senior credit facilities | Term Loan | First option | Federal funds
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
Federal funds
|
|
|
Interest rate added to variable rate (as a percent) |
0.50%
|
|
|
Senior credit facilities | Term Loan | First option | One month London Interbank Offered Rate
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
London Interbank Offered Rate for a one month interest period
|
|
|
Senior credit facilities | Term Loan | First option | Fixed rate
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Additional interest margin added to fixed and variable rates (as a percent) |
1.00%
|
|
|
Fixed interest rate base (as a percent) |
1.50%
|
|
|
Senior credit facilities | Term Loan | Second option
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Additional fixed interest rate spread (as a percent) |
4.25%
|
|
|
Senior credit facilities | Term Loan | Second option | Fixed rate
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Additional interest margin added to fixed and variable rates (as a percent) |
1.50%
|
|
|
Senior credit facilities | Revolving credit facility
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Borrowings under senior credit facility |
80,000
|
|
|
Remaining borrowing availability |
26,654
|
|
|
Fixed charge coverage ratio to be maintained if certain minimum availability under the credit facility is not maintained. |
1.0
|
|
|
Outstanding borrowings |
28,000
|
|
|
Senior credit facilities | Revolving credit facility | Maximum
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Annual acquisitions allowed |
$ 10,000
|
|
|
Senior credit facilities | Revolving credit facility | First option
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Additional fixed interest rate spread (as a percent) |
1.75%
|
|
|
Senior credit facilities | Revolving credit facility | First option | Prime
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
Prime Rate
|
|
|
Senior credit facilities | Revolving credit facility | First option | London Interbank Offered Rate
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
London Interbank Offered Rate
|
|
|
Senior credit facilities | Revolving credit facility | Second option
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Additional fixed interest rate spread (as a percent) |
1.25%
|
|
|
Senior credit facilities | Revolving credit facility | Second option | Prime
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
Prime Rate
|
|
|
Senior credit facilities | Revolving credit facility | Second option | Federal funds
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
Federal funds
|
|
|
Interest rate added to variable rate (as a percent) |
0.50%
|
|
|
Senior credit facilities | Revolving credit facility | Second option | One month London Interbank Offered Rate
|
|
|
|
Long-term debt, additional disclosure |
|
|
|
Variable rate basis |
London Interbank Offered Rate
|
|
|
Interest rate added to variable rate (as a percent) |
1.00%
|
|
|