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Business Combinations - Additional Information (Detail) - USD ($) |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 11, 2025 | Feb. 03, 2025 | Oct. 03, 2023 | Mar. 08, 2023 | Dec. 31, 2024 | Feb. 29, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  | $ 73,343,000 |  | $ 325,793,000 |  | $ 325,793,000 |
Tax benefit from release of a portion of valuation allowance attributable to estimated deferred tax liabilities |  |  |  |  |  |  | (212,000) | $ (95,000) | 45,968,000 | $ (106,000)
Net revenue |  |  |  |  |  |  | 314,635,000 | 165,969,000 | 570,372,000 | 311,789,000
Net (loss) income |  |  |  |  |  |  | (42,843,000) | (552,212,000) | (110,880,000) | (616,955,000)
Payment to acquire business net of cash acquired |  |  |  |  |  |  |  |  | 380,762,000 | 0
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Tax benefit from release of a portion of valuation allowance attributable to estimated deferred tax liabilities |  |  |  |  |  |  | (200,000) |  | 46,000,000 |
Genomics Product [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  | 241,800,000 | $ 112,300,000 | 435,600,000 | $ 214,900,000
Ambry [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ 231,186,000 |  |  |  |  |  |  |  |
Business combination aggregate consideration transferred |  | 695,343,000 |  |  |  |  |  |  |  |
Payments to acquire businesses, gross |  | 397,296,000 |  |  |  |  |  |  |  |
Base cash consideration |  | 375,000,000 |  |  |  |  |  |  |  |
Business combination consideration transferred equity interests issued and issuable |  | 298,047,000 |  |  |  |  |  |  |  |
Amount owed to acquiree under preexisting relationship |  | 3,800,000 |  |  |  |  |  |  |  |
Transaction costs |  |  |  |  |  |  | 7,200,000 |  | 7,200,000 |
Acquisition-related costs |  |  |  |  |  |  | 1,500,000 |  | 4,500,000 |
Goodwill, expected to be deductible for tax purposes |  | $ 600,000 |  |  |  |  |  |  |  |
Tax benefit from release of a portion of valuation allowance attributable to estimated deferred tax liabilities |  |  |  |  |  |  | (46,200,000) |  |  |
Net (loss) income |  |  |  |  |  |  | 2,200,000 |  | 7,700,000 |
Ambry [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business acquisition equity interests issued or issuable number of shares issued |  | 4,843,136 |  |  |  |  |  |  |  |
Ambry [Member] | Common Class A [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Class A common stock, closing price |  | $ 61.54 |  |  |  |  |  |  |  |
Stock issued during period number of shares subject to lock in period |  | 2,152,505 |  |  |  |  |  |  |  |
Ambry [Member] | Genomics Product [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  | $ 97,300,000 |  | 160,800,000 |
Deep 6 [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill | $ 21,100,000 |  |  |  |  |  |  |  |  |
Business combination aggregate consideration transferred | 17,400,000 |  |  |  |  |  |  |  |  |
Payments to acquire businesses, gross | 4,300,000 |  |  |  |  |  |  |  |  |
Business combination consideration in the form of shares held back | 800,000 |  |  |  |  |  |  |  |  |
Deep 6 [Member] | Other Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination consideration in the form of shares held back | 800,000 |  |  |  |  |  |  |  |  |
Deep 6 [Member] | Common Class A [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination consideration transferred equity interests issued and issuable | $ 13,100,000 |  |  |  |  |  |  |  |  |
Sengine [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | $ 9,600,000 |  |  |  |  |  |  |
Business combination aggregate consideration transferred |  |  | 9,900,000 |  |  |  |  |  | $ 0 |
Payments to acquire businesses, gross |  |  | 2,800,000 |  |  |  |  |  |  |
Business combination consideration in the form of shares held back |  |  | 1,400,000 |  |  |  |  |  |  |
Sengine [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Net working capital adjustment |  |  | 100,000 |  |  |  |  |  |  |
Sengine [Member] | Nonvoting Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination consideration transferred equity interests issued and issuable |  |  | $ 6,300,000 |  |  |  |  |  |  |
Business acquisition equity interests issued or issuable number of shares issued |  |  | 35,000 |  |  |  |  |  |  |
Stock issued during the period shares towards working capital adjustment |  |  |  |  |  | 429 |  |  |  |
Sengine [Member] | Common Class A [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business acquisition equity interests issued or issuable number of shares issued |  |  |  |  | 19,620 |  |  |  |  |
Mpirik [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  | $ 10,600,000 |  |  |  |  |  |
Business combination aggregate consideration transferred |  |  |  | 9,700,000 |  |  |  |  |  |
Business combination consideration transferred equity interests issued and issuable |  |  |  | 4,600,000 |  |  |  |  |  |
Business combination consideration in the form of shares held back |  |  |  | 300,000 |  |  |  |  |  |
Business combination aggregate cash consideration payable including the amount witheld |  |  |  | 4,700,000 |  |  |  |  |  |
Business combination contingent consideration payable in cash at fair value |  |  |  | 400,000 |  |  |  |  |  |
Business combination cash consideration held back |  |  |  | $ 800,000 |  |  |  |  |  |
Mpirik [Member] | Nonvoting Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Stock issued during the period shares in respect of consideration held back |  |  |  | 8,724 |  |  |  |  |  |

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