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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2024
Concentration Risk [Line Items]
Increase (reduction) in revenue	$ 18,000	$ (3,800)	$ 35,600	$ (4,900)
Decrease in product revenues			(943)	(1,116)
Stockholders' equity reclassification adjustment	425,598	327,370	425,598	327,370	$ 303,101	$ 313,535	$ 379,349	$ 378,433
Additional Paid-In Capital
Concentration Risk [Line Items]
Stockholders' equity reclassification adjustment	930,993	949,888	930,993	949,888	1,043,925	935,838	994,277	1,013,193
Accumulated Deficit
Concentration Risk [Line Items]
Stockholders' equity reclassification adjustment	(505,446)	$ (616,458)	(505,446)	$ (616,458)	(735,359)	$ (616,082)	$ (607,890)	(626,242)
Cumulative effect of retrospective adoption of ASU 2025-12 (Note 2)
Concentration Risk [Line Items]
Stockholders' equity reclassification adjustment					0			0
Cumulative effect of retrospective adoption of ASU 2025-12 (Note 2) \| Additional Paid-In Capital
Concentration Risk [Line Items]
Stockholders' equity reclassification adjustment					(116,468)			(28,705)
Cumulative effect of retrospective adoption of ASU 2025-12 (Note 2) \| Accumulated Deficit
Concentration Risk [Line Items]
Stockholders' equity reclassification adjustment					$ 116,468			$ 28,705
Testing services revenue
Concentration Risk [Line Items]
Decrease in product revenues	$ 2,400		$ 5,800
Medicare \| Revenue Benchmark \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration (as a percent)	30.00%	34.00%	29.00%	36.00%
Medicare \| Accounts Receivable \| Credit Concentration Risk
Concentration Risk [Line Items]
Concentration (as a percent)			21.00%		21.00%