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Revenues - Net Product Revenues Disaggregated by Product (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2021	Jul. 03, 2020	Jul. 02, 2021	Jul. 03, 2020
Disaggregation of Revenue [Line Items]
Net product revenues	$ 385,177	$ 259,479	$ 655,407	$ 486,394
CABOMETYX
Disaggregation of Revenue [Line Items]
Net product revenues	275,614	173,610	499,209	362,826
COMETRIQ
Disaggregation of Revenue [Line Items]
Net product revenues	8,634	5,120	12,251	9,784
Net product revenues
Disaggregation of Revenue [Line Items]
Net product revenues	$ 284,248	$ 178,730	$ 511,460	$ 372,610

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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