OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) € in Thousands, SFr in Thousands, RM in Thousands, $ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 CHF (SFr)	Dec. 31, 2021 CAD ($)	Dec. 31, 2021 AUD ($)	Dec. 31, 2021 MYR (RM)	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 CHF (SFr)	Dec. 31, 2020 CAD ($)	Dec. 31, 2020 AUD ($)	Dec. 31, 2020 MYR (RM)	Dec. 31, 2018 USD ($)
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balances at beginning of period	$ 769,000	$ 186,000	$ 245,000
Additions from acquisitions	3,000	90,000	0
Additions - charged to expense	353,000	614,000	113,000
Foreign exchange effects	(3,000)	0	0
Deductions - write offs, net of recoveries	(248,000)	(121,000)	(172,000)
Balances at end of period	874,000	769,000	186,000
Cash and cash equivalents	223,574,000	86,334,000	89,030,000	€ 5,497	SFr 224	$ 4,191	$ 676	RM 1,412	€ 8,520	SFr 138	$ 2,993	$ 159	RM 364	$ 13,389,000
Impairment of intangible assets (excluding goodwill)	0	0	0
Advertising expense	600,000	$ 400,000	$ 300,000
Lacuna Diagnostics, Inc.
Allowance for Doubtful Accounts Receivable [Roll Forward]
Contingent consideration payments	2,000,000
Payments if performance metrics met	1,000,000
BiEsseA s.r.1.
Allowance for Doubtful Accounts Receivable [Roll Forward]
Contingent consideration payments	2,900,000
Biotech Laboratories U.S.A. LLC
Allowance for Doubtful Accounts Receivable [Roll Forward]
Contingent consideration payments	17,500,000
Payments if metrics not met	$ 8,800,000
Convertible Senior Notes Due 2026 | Senior Notes
Allowance for Doubtful Accounts Receivable [Roll Forward]
Debt instrument, interest rate, stated percentage	3.75%			3.75%	3.75%	3.75%	3.75%	3.75%
Building | Minimum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	10 years
Building | Maximum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	43 years
Machinery and equipment | Minimum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	2 years
Machinery and equipment | Maximum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	10 years
Office furniture & equipment | Minimum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	3 years
Office furniture & equipment | Maximum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	7 years
Computer hardware & software | Minimum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	3 years
Computer hardware & software | Maximum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	7 years
Leasehold and building improvements | Minimum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	5 years
Leasehold and building improvements | Maximum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	15 years
Software Development | Minimum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	3 years
Software Development | Maximum
Allowance for Doubtful Accounts Receivable [Roll Forward]
Property plant and equipment, useful life	7 years