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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Revenue - Narrative (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Millions	Sep. 08, 2026	Sep. 30, 2026	Sep. 30, 2026	Nov. 03, 2025
Convertible Debt \| Exact Convertible Note
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Shares upon conversion (in shares)	3,364,814
License and collaboration revenue
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue recognized			$ 187.7
License and collaboration revenue \| Exact Science License Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Transaction price				$ 143.4
Regulatory milestones				700.0
Development payments				$ 20.0
Development payment satisfaction period				3 years
Variable consideration				$ 20.0
Revenue recognized		$ 182.5	187.7
Performance obligation amount		28.6	28.6
License and collaboration revenue \| Exact Science License Agreement \| Research and Development Services Performed
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Performance obligation amount		$ 21.7	$ 21.7
License and collaboration revenue \| Exact Science License Agreement \| Research and Development Services Performed \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-10-01
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Performance obligation period		2 years	2 years
License and collaboration revenue \| Exact Science License Agreement \| Material Right as Laboratory Tests Performed
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Performance obligation amount		$ 6.1	$ 6.1
License and collaboration revenue \| Exact Science License Agreement \| Satisfaction of Technology Transfers
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Performance obligation amount		0.7	0.7
License and collaboration revenue \| Exact Science License Agreement \| Regulatory Approval of Collaboration Product
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Regulatory milestones				100.0
License and collaboration revenue \| Exact Science License Agreement \| Regulatory Approval of Next-Generation Test
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Regulatory milestones		100.0	$ 100.0	100.0
License and collaboration revenue \| Exact Science License Agreement \| Collaboration Product Rating
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Regulatory milestones				500.0
License and collaboration revenue \| Upfront Payments
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Transaction price				75.0
License and collaboration revenue \| Reimbursement for Development Costs
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Transaction price				60.0
License and collaboration revenue \| Convertible Note Proceeds
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Transaction price				$ 8.4
License and collaboration revenue \| Exclusive Commercialization License
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue recognized		157.5
License and collaboration revenue \| Cumulative Catch-Up Adjustments
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue recognized		22.5
License and collaboration revenue \| Research and Development Services
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue recognized		$ 2.5