ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||
Income tax expense (benefit) related to items in other comprehensive loss | $ 2,333 | $ (800) | $ (375) |
Pension Plan | |||
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||
Income tax expense (benefit) related to items in other comprehensive loss | 0 | ||
Cash Flow Hedging | |||
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||
Income tax expense (benefit) related to items in other comprehensive loss | $ 2,300 |