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Balance Sheet Account Details (Tables)

12 Months Ended

Dec. 31, 2021

Other Balance Sheet Details [Abstract]

Schedule of Investment Categories

Excluding our investments in Viking, the following table summarizes the various investment categories at December 31, 2021 and 2020 (in thousands):

			Cost						Gross unrealized gains						Gross unrealized losses						Estimated fair value
December 31, 2021
Short-term investments
Mutual Fund			$	152,136					$	—					$	(249)					$	151,887
Bank deposits			63,389						13						(21)						63,381
Commercial paper			36,008						2						(12)						35,998
Corporate bonds			29,308						17						(38)						29,287
Corporate equity securities			5,807						402						(2,027)						4,182
U.S. government securities			5,577						—						(23)						5,554
Warrants			—						408						—						408
			$	292,225					$	842					$	(2,370)					$	290,697
December 31, 2020
Short-term investments
Mutual fund			$	151,512					386						$	—					$	151,898
Bank deposits			84,120						35						(1)						$	84,154
Commercial paper			45,459						27						(1)						$	45,485
Corporate bonds			30,512						99						(1)						$	30,610
Agency bonds			4,499						2						—						$	4,501
Corporate equity securities			4,466						360						(1,388)						$	3,438
Treasury bills			3,999						—						—						$	3,999
Warrants			—						393						—						$	393
			$	324,567					$	1,302					$	(1,391)					$	324,478

Schedule of Available-for-Sale Debt Securities by Contractual Maturity

The following table summarizes our available-for-sale debt securities by contractual maturity (in thousands):

			December 31, 2021
			Amortized Cost						Fair Value
Within one year			$	111,334					$	111,315
After one year through five years			24,952						24,909
After five years			—						—
Total			$	136,286					$	136,224

Schedule of Available-for-Sale Debt Securities in an Unrealized Loss Position

The following table summarizes our available-for-sale debt securities in an unrealized loss position (in thousands):

			Less than 12 months												12 months or greater												Total
			Gross Unrealized Losses						Estimated Fair Value						Gross Unrealized Losses						Estimated Fair Value						Gross Unrealized Losses						Estimated Fair Value
December 31, 2021
Bank deposits			$	(13)					$	20,008					$	—					$	—					$	(13)					$	20,008
Corporate bonds			(15)						27,252						(5)						2,996						(20)						30,248
Commercial paper			(6)						6,689						(32)						10,125						(38)						16,814
U.S. Government Securities			—						—						(23)						5,553						(23)						5,553
Total			$	(34)					$	53,949					$	(60)					$	18,674					$	(94)					$	72,623
December 31, 2020
Bank deposits			$	(1)					$	14,013					$	—					$	—					$	(1)					$	14,013
Corporate bonds			(1)						4,526						—						—						(1)						4,526
Commercial paper			(1)						7,693						—						—						(1)						7,693
Total			$	(3)					$	26,232					$	—					$	—					$	(3)					$	26,232

Schedule of Property and Equipment

Property and equipment are stated at cost and consists of the following (in thousands):

			December 31,
			2021						2020
Lab and office equipment			$	20,183					$	14,666
Leasehold improvements			7,983						3,519
Computer equipment and software			1,056						1056
			29,222						19,241
Less accumulated depreciation and amortization			(8,711)						(4,807)
			$	20,511					$	14,434

Schedule of Goodwill and Other Identifiable Intangible Assets

Goodwill and identifiable intangible assets consist of the following (in thousands):

			December 31,
			2021						2020
Indefinite-lived intangible assets
Goodwill			$	181,206					$	189,662
Definite-lived intangible assets
Complete technology			280,617						277,740
Less: Accumulated amortization			(78,991)						(63,600)
Trade name			2,642						2,642
Less: Accumulated amortization			(1,444)						(1,312)
Customer relationships			40,700						40,700
Less: Accumulated amortization			(18,267)						(15,597)
Contractual relationships			362,000						362,000
Less: Accumulated amortization			(36,217)						(7,243)
Total goodwill and other identifiable intangible assets, net			$	732,246					$	784,992

Schedule of Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

			December 31,
			2021						2020
Compensation			$	6,532					$	8,810
Professional fees			2,046						977
Amounts owed to former licensees			630						421
Royalties owed to third parties			149						693
Return reserve and customer refunds			2,420						687
Acquisition related liabilities			1,000						1,500
Subcontractor			1,759						733
Supplier			848						604
Other			2,195						4,105
			$	17,579					$	18,530

Schedule of Contingent Liabilities

The following table summarizes roll-forward of contingent liabilities as of December 2021 and 2020 (in thousands):

			December 31, 2019			Additional Contingent Liabilities			Payments			Fair Value Adjustment			Repurchases			December 31, 2020									Payments			Fair Value Adjustment			Repurchases			December 31, 2021
Cydex			$	348		$	—		$	—		$	160		$	—		$	508								$	(50)		$	(108)		$	—		$	350
Metabasis			5,935			—			—			(1,867)			(247)			3,821									—			(464)			—			3,357
Crystal			2,659			—			(1,800)			(59)			—			800									—			(800)			—			—
Icagen			—			4,800			(525)			2,129			—			6,404									(1,050)			2,010			—			7,364
Pfenex			—			37,000			—			600			—			37,600									—			(37,600)			—			—
xCella			—			—			—			—			—			—									(720)			720			—			—
Total			$	8,942		$	41,800		$	(2,325)		$	963		$	(247)		$	49,133								$	(1,820)		$	(36,242)		$	—		$	11,071

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