Fair Value Measurements, Cash Equivalents and Marketable Securities - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 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	$ 0	$ 0
Recognition of credit losses		0	0	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		(1,200,000)	$ 16,600,000	(29,300,000)	$ 84,500,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable equity securities		31,280,000		31,280,000
Long-term marketable equity securities						$ 98,002,000
Contingent consideration		7,300,000		7,300,000		6,540,000
Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable equity securities		31,280,000		31,280,000
Long-term marketable equity securities						98,002,000
Contingent consideration		0		0		0
Level 1 | Fair Value, Measurements, Recurring | Lunit Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable equity securities		31,300,000		31,300,000
Long-term marketable equity securities						98,000,000.0
Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable equity securities		0		0
Long-term marketable equity securities						0
Contingent consideration		7,300,000		7,300,000		6,540,000
Contingent consideration liability, noncurrent		$ 1,800,000		$ 1,800,000		$ 5,000,000.0