FAIR VALUE (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Liabilities:
Contingent consideration	$ 9,186
Fair Value, Measurements, Recurring [Member]
Assets:
Marketable Securities	103,864	$ 38,920
Total assets	106,909	40,105
Liabilities:
Contingent consideration	9,186	8,154
Forward contract		15,272
Deferred compensation	27,551	25,244
Total liabilities	42,494	56,561
Fair Value, Measurements, Recurring [Member] | Foreign exchange contracts
Assets:
Assets	3,045	1,185
Liabilities:
Liabilities	1,262	2,452
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Liabilities:
Liabilities	4,495	5,439
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)
Assets:
Marketable Securities	0	0
Total assets	0	0
Liabilities:
Contingent consideration	0	0
Forward contract		0
Deferred compensation	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Foreign exchange contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Interest Rate Swap [Member]
Liabilities:
Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Assets:
Marketable Securities	103,864	38,920
Total assets	106,909	40,105
Liabilities:
Contingent consideration	0	0
Forward contract		0
Deferred compensation	27,551	25,244
Total liabilities	33,308	33,135
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Foreign exchange contracts
Assets:
Assets	3,045	1,185
Liabilities:
Liabilities	1,262	2,452
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Interest Rate Swap [Member]
Liabilities:
Liabilities	4,495	5,439
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Assets:
Marketable Securities	0	0
Total assets	0	0
Liabilities:
Contingent consideration	9,186	8,154
Forward contract		15,272
Deferred compensation	0	0
Total liabilities	9,186	23,426
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Foreign exchange contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) | Interest Rate Swap [Member]
Liabilities:
Liabilities	$ 0	$ 0