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Revenues - Net Product Revenues Disaggregated by Product (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 29, 2018	Mar. 30, 2018	Jun. 30, 2017	Jun. 29, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Net product revenues	$ 186,108	$ 213,700	$ 99,008	$ 399,827	$ 179,895
Product
Disaggregation of Revenue [Line Items]
Net product revenues	145,836		88,004	280,108	156,881
CABOMETYX
Disaggregation of Revenue [Line Items]
Net product revenues	141,121		80,861	270,055	143,220
COMETRIQ
Disaggregation of Revenue [Line Items]
Net product revenues	$ 4,715		$ 7,143	$ 10,053	$ 13,661

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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.

+ References

No definition available.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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