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Debt - Lines of Credit (Details) - Lines of credit | 9 Months Ended
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Sep. 30, 2015 USD ($)
Credit Facilities |
Line of Credit Facility [Line Items] |
Maximum borrowing capacity | $ 150,000,000.0
Letters of credit, amount outstanding | $ 5,800,000
Credit Facilities | Minimum |
Line of Credit Facility [Line Items] |
Commitment fee percentage | 0.25%
Credit Facilities | Maximum |
Line of Credit Facility [Line Items] |
Commitment fee percentage | 0.375%
Revolving Credit Facility | Credit Facilities |
Line of Credit Facility [Line Items] |
Maximum debt to adjusted EBITDA ratio | 2.50
Minimum EBITDA to interest expense ratio | 3.0
Revolving Credit Facility | Credit Facilities | Federal Funds Effective Rate |
Line of Credit Facility [Line Items] |
Description of variable rate basis | Federal Funds Effective Rate
Fixed spread on variable rate | 0.50%
Revolving Credit Facility | Credit Facilities | Eurodollar |
Line of Credit Facility [Line Items] |
Description of variable rate basis | Eurodollar rate
Fixed spread on variable rate | 1.00%
Revolving Credit Facility | Credit Facilities | Eurodollar | Minimum |
Line of Credit Facility [Line Items] |
Basis spread on variable rate | 1.50%
Variable spread on variable rate | 0.50%
Revolving Credit Facility | Credit Facilities | Eurodollar | Maximum |
Line of Credit Facility [Line Items] |
Basis spread on variable rate | 2.50%
Variable spread on variable rate | 1.50%
Revolving Credit Facility | Revolving Credit Facility Maturing August 2018 |
Line of Credit Facility [Line Items] |
Maximum borrowing capacity limit | $ 100,000,000.0
Letter of Credit | Revolving Credit Facility Maturing August 2018 |
Line of Credit Facility [Line Items] |
Maximum borrowing capacity limit | 20,000,000.0
Swing Line Loan | Revolving Credit Facility Maturing August 2018 |
Line of Credit Facility [Line Items] |
Maximum borrowing capacity limit | $ 10,000,000.0

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- Definition Line of Credit Facility, Maximum Borrowing Capacity, Potential Increase + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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