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Segment Information (Schedule of Revenues by Customer) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Jan. 01, 2016
Revenue, Major Customer [Line Items]
Net product revenues	$ 349,008	$ 135,375	$ 34,158
Cabometyx [Member]
Revenue, Major Customer [Line Items]
Net product revenues	324,000	93,481	0
Cometriq [Member]
Revenue, Major Customer [Line Items]
Net product revenues	$ 25,008	$ 41,894	$ 34,158

X

- Definition

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.

+ Details

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X

- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ 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(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Details

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