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Long-Term Debt (Detail Textuals) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 17, 2014 | Dec. 31, 2015 | Dec. 31, 2014
Revolving credit facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Amount of credit facility |  | $ 125.0 | $ 350.0
Percentage of ownership |  | 100.00% |
Term of line of credit facility |  | 5 years |
Commitment fees and other debt related costs | $ 0.7 |  |
Decrease in interest rates on the revolving loans under the Credit Agreement | 0.125% |  |
Loan origination fees and other debt related costs |  | $ 3.0 |
Non-current other assets net |  | $ 0.3 |
Description of variable rate basis of debt instrument |  | Revolving loans under the Revolving Credit Agreement bear interest at one of the following two rates, at the Company's election: the Base Rate, which is the highest of Bank of America’s "prime rate" for the day of the borrowing, a fluctuating rate per annum equal to the Federal Funds Rate plus 0.50%, and a rate per annum equal to the one (1) month LIBOR rate plus 1.00%; in each case plus a margin that ranges from 0.125% to 1.125% based on a quarterly debt covenant calculation; or with respect to any Eurodollar borrowings, Adjusted LIBOR (which equals LIBOR as increased to account for the maximum reserve percentages established by the U.S. Federal Reserve) plus a margin ranging from 1.125% to 2.125%, based upon a quarterly debt covenant calculation. |
Revolving credit facility | Minimum |  |  |
Line of Credit Facility [Line Items] |  |  |
Fees on unused portion of facility |  | 0.225% |
Revolving credit facility | Maximum |  |  |
Line of Credit Facility [Line Items] |  |  |
Fees on unused portion of facility |  | 0.325% |
Revolving credit facility | Option 1 A |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate |  | 0.50% |
Description of reference rate basis |  | Federal Funds Rate |
Revolving credit facility | Option 1 A | Minimum |  |  |
Line of Credit Facility [Line Items] |  |  |
Range of margin based on quarterly debt covenant calculation |  | 0.125% |
Revolving credit facility | Option 1 A | Maximum |  |  |
Line of Credit Facility [Line Items] |  |  |
Range of margin based on quarterly debt covenant calculation |  | 1.125% |
Revolving credit facility | Option 1 B |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate |  | 1.00% |
Description of reference rate basis |  | LIBOR rate |
Revolving credit facility | Option 1 B | Minimum |  |  |
Line of Credit Facility [Line Items] |  |  |
Range of margin based on quarterly debt covenant calculation |  | 0.125% |
Revolving credit facility | Option 1 B | Maximum |  |  |
Line of Credit Facility [Line Items] |  |  |
Range of margin based on quarterly debt covenant calculation |  | 1.125% |
Unsecured line of credit |  |  |
Line of Credit Facility [Line Items] |  |  |
Amount of credit facility |  | $ 125.0 |
Letter of credit subfacility |  |  |
Line of Credit Facility [Line Items] |  |  |
Amount of credit facility |  | 50.0 |
Letter of swingline subfacility |  |  |
Line of Credit Facility [Line Items] |  |  |
Amount of credit facility | $ 35.0 | $ 35.0 |

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