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LONG TERM DEBT AND CAPITAL LEASES - Credit Facility (Details) | 12 Months Ended
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Dec. 31, 2018 USD ($)
Secured Debt | Term Facility due 2023 (Term Loan A Facility) [Member] | Line of Credit |
Line of Credit Facility [Line Items] |
Aggregate principal amount issued | $ 350,000,000
Secured Debt | Term Loan B Facility |
Line of Credit Facility [Line Items] |
Aggregate principal amount issued | $ 350,000,000
Facility term | 5 years
Net leverage ratio | 2.25
Secured Debt | Term Loan B Facility | LIBOR |
Line of Credit Facility [Line Items] |
Basis spread on variable rate (as a percent) | 1.25%
Basis spread on variable rate | 2.50%
Secured Debt | Term Loan B Facility | LIBOR | Maximum |
Line of Credit Facility [Line Items] |
Basis spread on variable rate (as a percent) | 2.00%
Revolving Credit Facility | Revolving Credit Facility Due 2023 [Member] | Line of Credit |
Line of Credit Facility [Line Items] |
Credit facility maximum | $ 200,000,000
Line of Credit | Refinanced Revolving Credit Facility due October 2021; bore interest at LIBOR plus 2.75% | Revolving Credit Facility |
Line of Credit Facility [Line Items] |
Credit facility maximum | 160,000,000
Remaining capacity | 107,879,000
Line of Credit | Refinanced Revolving Credit Facility due October 2021; bore interest at LIBOR plus 2.75% | Letter of Credit |
Line of Credit Facility [Line Items] |
Outstanding irrevocable letters of credit totaling | 22,521,000
Revolving Credit Facility |
Line of Credit Facility [Line Items] |
Additional revolver capacity | $ 125,000,000

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- Definition Debt Instrument, Covenant Compliance, Net Leverage Ratio + 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 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 Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the interest rate derivative. + 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 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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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