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Revolving Credit Facility and Long-Term Debt - Narrative (Details) (USD $) | 12 Months Ended |  | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  | 0 Months Ended | 12 Months Ended
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Dec. 31, 2013 Credit Agreement quarter | Dec. 31, 2012 Credit Agreement | Dec. 19, 2012 Base Rate Credit Agreement | Dec. 31, 2013 Base Rate Credit Agreement | Dec. 19, 2012 London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement | Dec. 31, 2013 London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement | Dec. 19, 2012 London Interbank Offered Rate (LIBOR) Credit Agreement | Dec. 31, 2013 London Interbank Offered Rate (LIBOR) Credit Agreement | Dec. 31, 2013 Federal Funds Rate Credit Agreement | Dec. 31, 2013 Variable Rate 1 Credit Agreement | Dec. 31, 2012 Variable Rate 1 Credit Agreement | Dec. 31, 2013 Variable Rate 2 Credit Agreement | Dec. 31, 2012 Variable Rate 2 Credit Agreement | Oct. 04, 2013 Revolving Credit Facility Credit Agreement | Sep. 30, 2010 Revolving Credit Facility Wells Fargo | Dec. 19, 2012 Term Loan Credit Agreement | Dec. 31, 2013 Bridge Loan Base Rate Credit Agreement | Dec. 19, 2012 Bridge Loan London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement | Dec. 31, 2013 Bridge Loan London Interbank Offered Rate (LIBOR) Market Index Rate Credit Agreement
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Amount Outstanding | $ 248,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | 215,000,000 | 125,000,000 | 100,000,000 |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 1.00% | 0.25% | 2.00% | 1.25% | 2.00% | 1.25% |  |  |  |  |  |  |  |  |  | 2.00% | 1.25%
Debt Instrument, Basis Spread on Base Rate |  |  |  |  |  |  |  | 0.01 | 0.0050 |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Current Quarter, Maximum | 4.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter One, Maximum | 4.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter Two, Maximum | 3.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter Three, Maximum | 3.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Quarter Four, Maximum | 3.25 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Year Two, Maximum | 3.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Year Three, Maximum | 2.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Year Four, Maximum | 2.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated EBITDA to Fixed Charges Ratio, Number of Consecutive Quarters | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated EBITDA to Fixed Charges Ratio, Minimum | 1.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Net Income, Maximum | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Facility Capital Expenditures, Next Twelve Months, Maximum | 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Terms, Consolidated Total Leverage Ratio, Minimum |  |  |  | 2.25 |  | 2.25 |  | 2.25 |  |  |  |  |  |  |  |  | 2.25 |  |
Line of Credit Facility, Remaining Borrowing Capacity | 34,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 4.2325% | 2.98% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, Percentage Bearing Fixed Interest, Amount | 145,000,000 | 150,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate |  |  |  |  |  |  |  |  |  | 3.42% | 2.22% | 3.50% | 2.31% |  |  |  |  |  |
Long-term Debt, Percentage Bearing Variable Interest, Amount |  |  |  |  |  |  |  |  |  | $ 101,500,000 | $ 87,000,000 | $ 2,354,000 | $ 566,000 |  |  |  |  |  |

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