Fair Value Measurements, Cash Equivalents and Marketable Securities - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
	Jul. 31, 2022	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Realized gain (loss) on marketable debt securities		$ 0	$ 0
Recognition of credit losses		0	0
Lunit Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Lock up period	2 years
Unrealized (loss) gain on marketable equity securities		(30,100,000)	$ 3,900,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term marketable debt securities		67,947,000		$ 98,002,000
Contingent consideration		6,660,000		6,540,000
Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term marketable debt securities		67,947,000
Contingent consideration		0		0
Level 1 | Fair Value, Measurements, Recurring | Lunit Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term marketable debt securities		67,900,000		98,002,000
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term marketable debt securities		0		0
Contingent consideration		6,660,000		6,540,000
Contingent consideration liability, noncurrent		$ 5,200,000		$ 5,000,000