LEASE AGREEMENTS - Rent Expense (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| LEASE AGREEMENTS | |||
| Rent expense under operating lease | $ 6.9 | $ 8.3 | $ 8.9 |
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- References No definition available.
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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