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v3.5.0.2

Debt (Details) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2016 USD ($) | Dec. 31, 2015 USD ($)
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity limit | $ 100,000,000.0 |
Maximum additional borrowing capacity | 150,000,000.0 |
Letters of credit, amount outstanding | $ 3,900,000 | $ 4,700,000
Maximum debt to adjusted EBITDA ratio | 2.50 |
Minimum EBITDA to interest expense ratio | 3.0 |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Minimum |  |
Line of Credit Facility [Line Items] |  |
Commitment fee percentage | 0.25% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Maximum |  |
Line of Credit Facility [Line Items] |  |
Commitment fee percentage | 0.375% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Federal Funds Effective Rate | Interest Option 1, Base Rate |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 0.50% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Eurodollar | Interest Option 1, Base Rate |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 1.00% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Eurodollar | Interest Option 1, Base Rate | Minimum |  |
Line of Credit Facility [Line Items] |  |
Additional spread on variable rate | 0.50% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Eurodollar | Interest Option 1, Base Rate | Maximum |  |
Line of Credit Facility [Line Items] |  |
Additional spread on variable rate | 1.50% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Eurodollar | Interest Option 2, Adjusted Eurodollar Rate |  |
Line of Credit Facility [Line Items] |  |
Threshold for change in interest payment schedule, number of months | 3 months |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Eurodollar | Interest Option 2, Adjusted Eurodollar Rate | Minimum |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 1.50% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Revolving Credit Facility | Eurodollar | Interest Option 2, Adjusted Eurodollar Rate | Maximum |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 2.50% |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Letter of Credit |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity limit | $ 20,000,000.0 |
Lines Of Credit | Revolving Credit Facility Maturing August 2018 | Swing Line Loan |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity limit | 10,000,000.0 |
Insurance Notes Payable |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, face amount |  | $ 7,600,000.0
Debt instrument, interest rate (as a percent) |  | 1.90%
Total outstanding | $ 2,100,000 | $ 6,900,000

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