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LONG TERM DEBT AND CAPITAL LEASES - Credit Facility (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 USD ($) | Dec. 31, 2015
Line of Credit Facility [Line Items] |  |
Debt redemption price | 101.938% |
Senior Subordinated Notes, Due February 2019; bore interest at 7.75% |  |
Line of Credit Facility [Line Items] |  |
Debt instrument interest rate | 7.75% | 7.75%
Senior Secured Asset-Backed Credit Facility, Due February 2020; bearing interest at one month LIBOR plus 2.25% |  |
Line of Credit Facility [Line Items] |  |
Additional revolver capacity | $ 100,000,000 |
Term Loan B Facility | Secured Debt |  |
Line of Credit Facility [Line Items] |  |
Principal amount | $ 350,000,000 |
Facility term | 7 years |
Net leverage ratio | 3.75 |
Revolving Credit Facility due October 2021; bearing interest at LIBOR plus 3.00% |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 3.00% |
Revolving Credit Facility due October 2021; bearing interest at LIBOR plus 3.00% | Line of Credit | Revolving Credit Facility |  |
Line of Credit Facility [Line Items] |  |
Credit facility maximum | $ 160,000,000 |
Facility term | 5 years |
Remaining capacity | $ 72,072,000 |
Revolving Credit Facility due October 2021; bearing interest at LIBOR plus 3.00% | Line of Credit | Letter of Credit |  |
Line of Credit Facility [Line Items] |  |
Outstanding irrevocable letters of credit totaling | $ 25,328,000 |
Minimum | Revolving Credit Facility due October 2021; bearing interest at LIBOR plus 3.00% | Line of Credit | Revolving Credit Facility |  |
Line of Credit Facility [Line Items] |  |
Debt instrument interest rate | 2.50% |
Maximum | Revolving Credit Facility due October 2021; bearing interest at LIBOR plus 3.00% | Line of Credit | Revolving Credit Facility |  |
Line of Credit Facility [Line Items] |  |
Debt instrument interest rate | 3.25% |
LIBOR | Term Loan B Facility | Secured Debt |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 2.75% |
LIBOR | Minimum | Term Loan B Facility | Secured Debt |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 1.00% |
LIBOR | Maximum | Term Loan B Facility | Secured Debt |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 3.00% |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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 Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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