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INCOME TAXES (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Balance at the beginning of the year $ 28,449 $ 18,499
Increase related to current year tax provisions 1,431 1,448
Increase related to prior years' tax positions 4,917 1,460
Unrecognized Tax Benefits, Increase Resulting from Acquisition 0 8,223
Decrease related to settlements with taxing authorities (111) (522)
Resolution of and other decreases in prior years' tax liabilities (1,501) (1,734)
Other (4,381) 1,075
Balance at the end of the year 28,804 28,449
Interest and penalties expense (benefit) (1,277) 1,079
Accrued interest and penalties 6,655 8,135
Total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate 25,069 $ 25,024
Reasonably possible further reduction in prior years' unrecognized tax benefits during the next twelve months $ 1,759