Business Combination - Schedule of Consideration (Details) - USD ($) $ in Thousands	Dec. 04, 2025	Mar. 31, 2026	Dec. 31, 2025
Business Combination, Separately Recognized Transaction [Line Items]
Fair value of contingent consideration		$ 125,554	$ 118,360
Goodwill	$ 141,100
Foresight Diagnostics, Inc.
Business Combination, Separately Recognized Transaction [Line Items]
Fair value of common stock issued to Foresight Diagnostics shareholders	273,038
Pre-combination portion of Natera replacement equity awards	12,088
Fair value of contingent consideration	118,360	$ 125,600	$ 118,400
Estimated fair value of the adjustment escrow shares	2,300
Stockholder representative allocable expenses	1,000
Foresight Diagnostics’ transaction expenses settled by the Company	7,232
Foresight Diagnostics’ indebtedness settled by the Company	5,974
Settlement of preexisting relationships	4,542
Cash payment for fractional shares	2
Total Foresight Diagnostics consideration	424,536
Cash and cash equivalents	2,727
Current assets	8,126
Property and equipment, net	7,224
Goodwill	141,070
Developed technology intangible asset	335,300
Customer relationships intangible asset	900
Trademarks / trade names intangible asset	500
Operating lease right-of-use assets	11,261
Other assets	1,291
Liabilities assumed	(22,397)
Deferred tax liability	$ (61,466)