LEASE COMMITMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Rent expense under operating leases	$ 32,704	$ 30,274	$ 27,360
Assets recorded under capital leases
Assets recorded under capital leases, Gross	20,251	4,680
Accumulated depreciation	(3,243)	(2,357)
Assets recorded under capital leases, Net	17,008	2,323
Future minimum payments under capital leases, by year and in the aggregate
2019	1,828
2020	1,653
2021	1,546
2022	1,160
2023	880
Subsequent to 2023	3,827
Total minimum lease payments	10,894
Amounts representing interest	(2,541)
Present value of future minimum lease payments	8,353
Lease amount due in one year	(1,327)
Total	7,026
Future minimum payments under noncancelable operating leases, by year and in the aggregate
2019	26,512
2020	21,386
2021	16,529
2022	12,549
2023	10,225
Subsequent to 2023	21,932
Total minimum lease payments	109,133
Land
Assets recorded under capital leases
Assets recorded under capital leases, Gross	333
Building
Assets recorded under capital leases
Assets recorded under capital leases, Gross	13,522	2,415
Machinery and equipment
Assets recorded under capital leases
Assets recorded under capital leases, Gross	6,118	$ 2,265
Leasehold
Assets recorded under capital leases
Assets recorded under capital leases, Gross	171
Furnitures
Assets recorded under capital leases
Assets recorded under capital leases, Gross	$ 107