XML 51 R38.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Revenues - Revenues Disaggregated by Geographic Region (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 30, 2018 | Mar. 31, 2017
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ 212,346 | $ 80,887
U.S. |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 135,620 | 73,675
Europe |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 53,809 | 4,530
Rest of the world |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ 22,917 | $ 2,682

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
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=exel_OtherGeographicalAreasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |