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Number of shares of equity interests issued or issuable to acquire entity.

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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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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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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 liability recognized arising from contingent consideration in a business combination.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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 number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Percentage of vesting of award under share-based payment arrangement.

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Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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Business combinations - Diploid (Details) - USD ($) shares in Thousands, $ in Thousands	1 Months Ended			9 Months Ended	12 Months Ended
	Jun. 30, 2020	Apr. 30, 2020	Mar. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Business combination, total purchase consideration		$ 65,913
Useful life				8 years 9 months 18 days	8 years 10 months 24 days
Hold-back consideration - common stock		$ 6,173
Goodwill				$ 211,225	$ 126,777
Diploid
Business Acquisition [Line Items]
Percentage of diluted interest acquired			100.00%
Business combination, total purchase consideration			$ 82,314
Useful life			9 years
Hold-back consideration - common stock			$ 7,538
Contingent consideration				$ 18,300
Goodwill			$ 50,655
Indemnification obligations \| Diploid
Business Acquisition [Line Items]
Business acquisition common stock issued (in shares)			400
First anniversary \| Stock incentive plans \| Diploid
Business Acquisition [Line Items]
Vesting rate upon anniversaries	50.00%
Second anniversary \| Stock incentive plans \| Diploid
Business Acquisition [Line Items]
Vesting rate upon anniversaries	50.00%
RSU
Business Acquisition [Line Items]
RSUs granted (in shares)				4,545
RSU \| Stock incentive plans \| Diploid
Business Acquisition [Line Items]
RSUs granted (in shares)	200
Business acquisition, value of units granted	$ 3,600
RSU \| First anniversary \| Stock incentive plans
Business Acquisition [Line Items]
Vesting rate upon anniversaries				33.33%
RSU \| Second anniversary \| Stock incentive plans
Business Acquisition [Line Items]
Vesting rate upon anniversaries				33.33%