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Long-Term Debt (Details Textual) - Amended Credit Agreement - USD ($) | 6 Months Ended |
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Jun. 30, 2017 | Jun. 30, 2016
Debt instrument, Interest rate terms | Borrowings under the Credit Agreement bear interest, at the Company’s option, at either (1) the highest of the federal funds rate plus 0.50%, the Eurodollar rate for a one-month interest period plus 1.00%, or the administrative agent’s prime rate as announced from time to time, or (2) the Eurodollar rate for the applicable interest period, plus in each case, an applicable margin based on the Company’s leverage ratio. |
Debt, Weighted Average Interest Rate | 3.40% | 3.40%
Federal Funds Effective Swap Rate [Member] |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |
Eurodollar [Member] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |
Revolving Credit Facility [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 50,000 |
Term Loan [Member] |  |
Debt Instrument, Face Amount | $ 160,000 |
Term Loan [Member] | Revolving Credit Facility [Member] |  |
Debt Instrument, Maturity Date | Jul. 31, 2020 |

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- Definition Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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