The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Amortized intangible assets
Gross Carrying Amount	$ 458,479		$ 458,479		$ 466,741
Accumulated Amortization	(136,464)		(136,464)		(122,432)
Net Value	322,015		322,015		344,309
Aggregate amortization expense	9,811	$ 12,320	$ 19,622	$ 20,334
Weighted Average
Amortized intangible assets
Amortization Period (in years)			13 years 4 months 24 days
Patents
Amortized intangible assets
Gross Carrying Amount	2,822		$ 2,822		2,861
Accumulated Amortization	(1,465)		(1,465)		(1,477)
Net Value	1,357		$ 1,357		1,384
Patents \| Weighted Average
Amortized intangible assets
Amortization Period (in years)			13 years 9 months 18 days
Acquired technology
Amortized intangible assets
Gross Carrying Amount	110,171		$ 110,171		111,854
Accumulated Amortization	(41,264)		(41,264)		(36,943)
Net Value	68,907		$ 68,907		74,911
Acquired technology \| Weighted Average
Amortized intangible assets
Amortization Period (in years)			12 years 2 months 12 days
Customer relationships
Amortized intangible assets
Gross Carrying Amount	284,613		$ 284,613		286,644
Accumulated Amortization	(67,039)		(67,039)		(56,714)
Net Value	217,574		$ 217,574		229,930
Customer relationships \| Weighted Average
Amortized intangible assets
Amortization Period (in years)			13 years 6 months
Trademarks and trade names
Amortized intangible assets
Gross Carrying Amount	45,653		$ 45,653		46,174
Accumulated Amortization	(20,286)		(20,286)		(17,437)
Net Value	25,367		$ 25,367		28,737
Trademarks and trade names \| Weighted Average
Amortized intangible assets
Amortization Period (in years)			6 years 9 months 18 days
License agreements and other
Amortized intangible assets
Gross Carrying Amount	15,220		$ 15,220		19,208
Accumulated Amortization	(6,410)		(6,410)		(9,861)
Net Value	$ 8,810		$ 8,810		$ 9,347
License agreements and other \| Weighted Average
Amortized intangible assets
Amortization Period (in years)			38 years 3 months 18 days