INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Intangible assets subject to amortization
Gross Amount	$ 142,969	$ 99,443
Accumulated amortization	(39,183)	(33,584)
Net Book Value	103,786	65,859
Amortization expense for intangible assets	6,245	5,928	$ 5,718
Estimated amortization expense
2022	9,848
2023	9,860
2024	9,532
2025	9,515
2026	9,417
Thereafter	55,614
Total estimated amortization expense	103,786
ORMEC Systems Corp, ALIO Industries and Spectrum Controls, Inc
Intangible assets subject to amortization
Intangible assets resulting from the acquisitions	45,000
Customer lists
Intangible assets subject to amortization
Gross Amount	94,079	69,833
Accumulated amortization	(27,639)	(23,636)
Net Book Value	$ 66,440	46,197
Customer lists | Minimum
Intangible assets subject to amortization
Estimated Life	5 years
Customer lists | Maximum
Intangible assets subject to amortization
Estimated Life	18 years
Trade name
Intangible assets subject to amortization
Gross Amount	$ 14,649	14,055
Accumulated amortization	(5,927)	(5,061)
Net Book Value	$ 8,722	8,994
Trade name | Minimum
Intangible assets subject to amortization
Estimated Life	10 years
Trade name | Maximum
Intangible assets subject to amortization
Estimated Life	19 years
Design and technologies
Intangible assets subject to amortization
Gross Amount	$ 34,241	15,555
Accumulated amortization	(5,617)	(4,887)
Net Book Value	$ 28,624	$ 10,668
Design and technologies | Minimum
Intangible assets subject to amortization
Estimated Life	10 years
Design and technologies | Maximum
Intangible assets subject to amortization
Estimated Life	15 years