Balance Sheet Components - Schedule of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Balance Sheet Related Disclosures [Abstract]
Legal, audit and consulting fees	$ 53,808	$ 56,077
Testing and laboratory materials from suppliers	30,917	12,353
Clinical trials and studies	28,442	14,467
Marketing and corporate affairs	26,242	20,215
Property and equipment purchases	20,458	11,270
Accrued charges for third-party testing	18,427	20,874
Operating lease liabilities, current portion	15,123	15,581
Accrued third-party service fees	10,287	9,758
Reserves for refunds to insurance carriers	9,662	9,507
Sales and income tax payable	9,350	8,365
Accrued shipping charges	3,152	3,419
Other accrued expenses	2,588	6,773
Total other accrued liabilities	$ 228,456	$ 188,659