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Business Combination, Contingent Consideration, Liability and Holdback

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Business Combinations, Tangible Liabilities

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions and Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Business Acquisition [Line Items]
Goodwill	$ 360,968	$ 359,345
Series of Individually Immaterial Business Acquisitions \| Technology license
Business Acquisition [Line Items]
Intangible assets acquired	$ 10,000
Weighted average useful life of finite-lived intangible assets	10 years
Reference Laboratory \| Finland
Business Acquisition [Line Items]
Payments to acquire business		13,400
Holdback		1,400
Goodwill		6,900
Net tangible liabilities		$ 1,700
Reference Laboratory \| Finland \| Customer relationships
Business Acquisition [Line Items]
Weighted average useful life of finite-lived intangible assets		10 years
Net tangible assets		$ 7,400
Reference Laboratory \| Finland \| Non-compete agreements
Business Acquisition [Line Items]
Weighted average useful life of finite-lived intangible assets		3 years
Net tangible assets		$ 800
Reference Laboratory \| Switzerland
Business Acquisition [Line Items]
Goodwill			$ 1,800
Consideration transferred			5,500
Contingent payment and holdback			1,100
Liabilities			600
Reference Laboratory \| Switzerland \| Customer relationships
Business Acquisition [Line Items]
Intangible assets acquired			$ 4,300
Weighted average useful life of finite-lived intangible assets			9 years