CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Oct. 01, 2023	Sep. 30, 2024	Oct. 01, 2023
Revenue:
Revenue	$ 28,652	$ 20,722	$ 87,343	$ 62,779
Costs and operating expenses:
Cost of revenue — amortization of intangible assets	33,473	33,473	100,417	100,417
Sales and marketing	35,625	36,597	123,433	123,169
Goodwill and intangible impairment	0	718,466	1,420,936	718,466
Total costs and operating expenses	212,159	933,113	2,139,563	1,383,568
Loss from operations	(183,507)	(912,391)	(2,052,220)	(1,320,789)
Other income:
Interest income	11,661	2,529	17,367	6,603
Other expense, net	561	196	514	421
Total other income, net	11,100	2,333	16,853	6,182
Loss before income taxes	(172,407)	(910,058)	(2,035,367)	(1,314,607)
Benefit from income taxes	46,719	18,610	105,428	36,449
Net loss	$ (125,688)	$ (891,448)	$ (1,929,939)	$ (1,278,158)
Net loss per share
Net loss per share—basic (in dollars per share)	$ (3.94)	$ (28.71)	$ (61.61)	$ (41.17)
Net loss per share—diluted (in dollars per share)	$ (3.94)	$ (28.71)	$ (61.61)	$ (41.17)
Weighted-average number of shares used in per share calculation—basic (in shares)	31,880,054	31,049,148	31,326,117	31,049,148
Weighted-average number of shares used in per share calculation—diluted (in shares)	31,880,054	31,049,148	31,326,117	31,049,148
Related Party
Costs and operating expenses:
Research and development	$ 8,223	$ 4,537	$ 18,927	$ 16,288
Operating expenses — General and administrative — related parties	1	51	104	154
Nonrelated Party
Costs and operating expenses:
Research and development	70,008	75,539	255,125	238,371
Operating expenses — General and administrative — related parties	47,417	50,132	171,641	147,380
Screening Revenue | Related Party
Revenue:
Revenue	129	114	366	530
Costs and operating expenses:
Cost of revenue	3,916	2,013	10,427	5,805
Screening Revenue | Nonrelated Party
Revenue:
Revenue	25,245	16,631	76,710	51,814
Costs and operating expenses:
Cost of revenue	12,054	10,816	35,054	28,574
Developmental Services Revenue
Revenue:
Revenue	3,278	3,977	10,267	10,435
Developmental Services Revenue | Related Party
Costs and operating expenses:
Cost of revenue	161	65	284	125
Developmental Services Revenue | Nonrelated Party
Costs and operating expenses:
Cost of revenue	$ 1,281	$ 1,424	$ 3,215	$ 4,819