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Revenues - Net Product Revenues Disaggregated by Product (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Oct. 01, 2021	Oct. 02, 2020
Disaggregation of Revenue [Line Items]
Net product revenues	$ 328,423	$ 231,092	$ 983,830	$ 717,486
CABOMETYX
Disaggregation of Revenue [Line Items]
Net product revenues	259,791	159,555	759,000	522,381
COMETRIQ
Disaggregation of Revenue [Line Items]
Net product revenues	3,326	9,032	15,577	18,816
Net product revenues
Disaggregation of Revenue [Line Items]
Net product revenues	$ 263,117	$ 168,587	$ 774,577	$ 541,197

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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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