LONG-TERM OBLIGATIONS - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions |
Jun. 30, 2018 |
Dec. 31, 2017 |
---|---|---|
Debt Instrument [Line Items] | ||
Principal amount | $ 128.5 | $ 90.7 |
Deferred debt issuance costs | (3.9) | (1.9) |
Long-term obligations, including current portion | 124.6 | 88.8 |
Current portion of long-term obligations | (0.7) | (10.6) |
Long-term obligations, less current portion | 123.9 | 78.2 |
Term Loan | 100 Million Term Loan | ||
Debt Instrument [Line Items] | ||
Principal amount | 0.0 | 90.0 |
Promissory Notes [Member] | ||
Debt Instrument [Line Items] | ||
Principal amount | 0.9 | 0.7 |
Capital Lease Obligations [Member] | ||
Debt Instrument [Line Items] | ||
Principal amount | 0.1 | 0.0 |
Revolving Credit Facility [Member] | 200 Million Revolving Credit Facility | ||
Debt Instrument [Line Items] | ||
Principal amount | 0.0 | 0.0 |
Revolving Credit Facility [Member] | 550 Million Revolving Credit Facility [Member] | ||
Debt Instrument [Line Items] | ||
Principal amount | $ 127.5 | $ 0.0 |