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Long-term Debt - Narrative (Details) |  | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Dec. 19, 2012 USD ($) quarter | Jun. 30, 2016 USD ($) | Dec. 31, 2015 USD ($) | Oct. 04, 2013 USD ($) | Sep. 30, 2010 USD ($)
Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum consolidated total leverage ratio, any fiscal quarter, 2015 requirement | 3 |  |  |  |
Line Of Credit Facility Covenant Terms Consolidated Total Leverage Ratio Thereafter Maximum | 3.25 |  |  |  |
Number of consecutive quarters for EBITDA to fixed charges ratio covenants | quarter | 4 |  |  |  |
Minimum consolidated EBITDA to fixed charges ratio | 1.75 |  |  |  |
Maximum consolidated net income | $ 0 |  |  |  |
Maximum facility capital expenditures in the next 12 months | $ 30,000,000 |  |  |  |
Amount outstanding on line of credit |  | $ 231,700,000 |  |  |
Remaining borrowing capacity on line of credit |  | $ 53,200,000 |  |  |
Fixed interest rate percent |  | 2.4825% | 2.4825% |  |
Debt subject to fixed interest rate |  | $ 133,800,000 | $ 135,000,000 |  |
Base Rate | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Spread on variable rate loans | 1.00% | 0.25% |  |  |
Minimum consolidated total leverage ratio |  | 2.25 |  |  |
London Interbank Offered Rate (LIBOR) Market Index Rate | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Spread on variable rate loans | 2.00% | 1.25% |  |  |
Minimum consolidated total leverage ratio |  | 2.25 |  |  |
London Interbank Offered Rate (LIBOR) | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Spread on variable rate loans | 2.00% | 1.25% |  |  |
Calculation of base rate |  | 1.00% |  |  |
Minimum consolidated total leverage ratio |  | 2.25 |  |  |
Federal Funds Rate | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Calculation of base rate |  | 0.50% |  |  |
Variable Rate 1 | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Variable interest rate percent |  |  | 1.74% |  |
Debt subject to variable interest rate |  |  | $ 65,800,000 |  |
Variable Rate 2 | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Variable interest rate percent |  | 2.16% | 2.12% |  |
Debt subject to variable interest rate |  | $ 98,000,000 | $ 6,800,000 |  |
Revolving Credit Facility | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum borrowing capacity |  |  |  | $ 225,000,000 |
Revolving Credit Facility | Wells Fargo |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | $ 175,000,000
Term Loan | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum borrowing capacity | $ 100,000,000 |  |  |  |
Bridge Loan | Base Rate | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Minimum consolidated total leverage ratio |  | 2.25 |  |  |
Bridge Loan | London Interbank Offered Rate (LIBOR) Market Index Rate | Credit Agreement |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Spread on variable rate loans | 2.00% | 1.25% |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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