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Long-term Debt - Narrative (Details) - USD ($) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2016 | Jul. 06, 2016 | Dec. 31, 2015
Line of Credit Facility [Line Items] |  |  |
Outstanding borrowings | $ 328,413,000 |  |
Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Outstanding borrowings | 328,400,000 |  |
Remaining borrowing capacity on line of credit | $ 91,600,000 |  |
Variable Rate 1 | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Variable interest rate percent | 3.02% |  | 1.74%
Debt subject to variable interest rate | $ 153,000,000 |  | $ 65,800,000
Variable Rate 2 | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Variable interest rate percent | 5.00% |  | 2.12%
Debt subject to variable interest rate | $ 400,000 |  | $ 6,800,000
Revolving Credit Facility | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Maximum borrowing capacity |  | $ 275,000,000 |
Interest rate increase if in event of default | 2.00% |  |
Swingline loan | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Maximum borrowing capacity |  | 25,000,000 |
Term Loan | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Debt instrument, face amount |  | $ 150,000,000 |
Minimum | Revolving Credit Facility | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Commitment fee percentage | 0.15% |  |
Maximum | Revolving Credit Facility | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Commitment fee percentage | 0.40% |  |
Interest Rate Swap 1 | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Fixed interest rate percent | 3.48% |  | 2.48%
Debt subject to fixed interest rate | $ 131,300,000 |  | $ 135,000,000
Interest Rate Swap 2 | Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Fixed interest rate percent | 3.62% |  |
Debt subject to fixed interest rate | $ 43,800,000 |  |

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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + 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) -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 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + 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 + Details
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