Revenues - Net Product Revenues Disaggregated by Product (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2026	Jan. 03, 2025	Dec. 29, 2023
Disaggregation of Revenue [Line Items]
Net product revenues	$ 2,320,126	$ 2,168,701	$ 1,830,208
Net product revenues
Disaggregation of Revenue [Line Items]
Net product revenues	2,122,804	1,809,395	1,628,879
CABOMETYX
Disaggregation of Revenue [Line Items]
Net product revenues	2,113,369	1,798,237	1,614,942
COMETRIQ
Disaggregation of Revenue [Line Items]
Net product revenues	$ 9,435	$ 11,158	$ 13,937