SIGNIFICANT ACCOUNTING POLICIES - Finite Lived Intangible Assets Estimated Economic Lives (Details)	3 Months Ended
	Mar. 31, 2021
Patents | Minimum
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	4 years
Patents | Maximum
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	20 years
Client Relationships | Minimum
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	9 years
Client Relationships | Maximum
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	22 years
Trademarks
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	30 years
Non-compete Agreements
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	9 years
Internally-developed Software
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	3 years