FAIR VALUE (Summary of Fair Value Assets and Liabilities) (Details) - Recurring basis - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets:
Total assets	$ 6,649	$ 7,324
Liabilities:
Contingent consideration	470	2,100
Deferred compensation	29,170	26,524
Total liabilities	31,788	36,890
Foreign exchange contracts
Assets:
Assets	3,685	7,022
Liabilities:
Liabilities	1,495	1,233
Interest Rate Swap [Member]
Assets:
Assets	2,964	302
Liabilities:
Liabilities		7,033
Net Investment Hedging [Member]
Liabilities:
Liabilities	653
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Total assets	0	0
Liabilities:
Contingent consideration	0	0
Deferred compensation	0	0
Total liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign exchange contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest Rate Swap [Member]
Assets:
Assets	0	0
Liabilities:
Liabilities		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Net Investment Hedging [Member]
Liabilities:
Liabilities	0
Significant Other Observable Inputs (Level 2)
Assets:
Total assets	6,649	7,324
Liabilities:
Contingent consideration	0	0
Deferred compensation	29,170	26,524
Total liabilities	31,318	34,790
Significant Other Observable Inputs (Level 2) | Foreign exchange contracts
Assets:
Assets	3,685	7,022
Liabilities:
Liabilities	1,495	1,233
Significant Other Observable Inputs (Level 2) | Interest Rate Swap [Member]
Assets:
Assets	2,964	302
Liabilities:
Liabilities		7,033
Significant Other Observable Inputs (Level 2) | Net Investment Hedging [Member]
Liabilities:
Liabilities	653
Significant Unobservable Inputs (Level 3)
Assets:
Total assets	0	0
Liabilities:
Contingent consideration	470	2,100
Deferred compensation	0	0
Total liabilities	470	2,100
Significant Unobservable Inputs (Level 3) | Foreign exchange contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	0	0
Significant Unobservable Inputs (Level 3) | Interest Rate Swap [Member]
Assets:
Assets	0	0
Liabilities:
Liabilities		$ 0
Significant Unobservable Inputs (Level 3) | Net Investment Hedging [Member]
Liabilities:
Liabilities	$ 0