Composition of Certain Financial Statement Captions - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2021	Jan. 01, 2020
Summary of Significant Accounting Policies [Line Items]
Goodwill	$ 520,601	$ 680,602		$ 718,625	$ 709,963
Goodwill impairment loss	0	$ 0	$ 26,200
Detect Genomix
Summary of Significant Accounting Policies [Line Items]
Goodwill	$ 151,800
Covenants not to compete
Summary of Significant Accounting Policies [Line Items]
Useful life	5 years
Minimum | Technologies
Summary of Significant Accounting Policies [Line Items]
Useful life	7 years
Minimum | Customer relationships
Summary of Significant Accounting Policies [Line Items]
Useful life	7 years
Minimum | Product registrations
Summary of Significant Accounting Policies [Line Items]
Useful life	7 years
Minimum | Trade names
Summary of Significant Accounting Policies [Line Items]
Useful life	5 years
Minimum | Other
Summary of Significant Accounting Policies [Line Items]
Useful life	9 years
Maximum | Technologies
Summary of Significant Accounting Policies [Line Items]
Useful life	17 years
Maximum | Customer relationships
Summary of Significant Accounting Policies [Line Items]
Useful life	20 years
Maximum | Product registrations
Summary of Significant Accounting Policies [Line Items]
Useful life	10 years
Maximum | Trade names
Summary of Significant Accounting Policies [Line Items]
Useful life	10 years
Maximum | Other
Summary of Significant Accounting Policies [Line Items]
Useful life	13 years
In Process Research and Development
Summary of Significant Accounting Policies [Line Items]
Impairment of assets			44,800
Trademarks
Summary of Significant Accounting Policies [Line Items]
Impairment of assets			$ 20,700