XML 52 R39.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Revenues - Activities and Ending Reserve Balances for Significant Categories of Discounts and Allowances (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 30, 2018 USD ($)
Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance | $ 9,493
Provision related to sales made in: |
Current period | 25,297
Prior periods | (132)
Payments and customer credits issued | (20,153)
Balance | 14,505
Chargebacks and Discounts for Prompt Payment |
Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance | 1,928
Provision related to sales made in: |
Current period | 14,475
Prior periods | (331)
Payments and customer credits issued | (13,556)
Balance | 2,516
Other Customer Credits/Fees and Co-pay Assistance |
Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance | 1,795
Provision related to sales made in: |
Current period | 4,197
Prior periods | 0
Payments and customer credits issued | (3,294)
Balance | 2,698
Rebates |
Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance | 5,770
Provision related to sales made in: |
Current period | 6,625
Prior periods | 199
Payments and customer credits issued | (3,303)
Balance | 9,291
Returns |
Movement in Valuation Allowances and Reserves [Roll Forward] |
Balance | 0
Provision related to sales made in: |
Current period | 0
Prior periods | 0
Payments and customer credits issued | 0
Balance | $ 0

X
- Definition Valuation Allowances And Reserves, Additions For Sales In Current Period + References No definition available. + Details
Name: | exel_ValuationAllowancesAndReservesAdditionsForSalesInCurrentPeriod
Namespace Prefix: | exel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Valuation Allowances And Reserves, Additions For Sales In Prior Period + References No definition available. + Details
Name: | exel_ValuationAllowancesAndReservesAdditionsForSalesInPriorPeriod
Namespace Prefix: | exel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Valuation Allowances And Reserves, Additions To Provision [Abstract] + References No definition available. + Details
Name: | exel_ValuationAllowancesAndReservesAdditionsToProvisionAbstract
Namespace Prefix: | exel_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_MovementInValuationAllowancesAndReservesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
Name: | us-gaap_ValuationAllowancesAndReservesBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
Name: | us-gaap_ValuationAllowancesAndReservesDeductions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=us-gaap_ReserveForCashDiscountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=exel_AllowanceForCustomerCreditsFeesandCoPayAssistanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=exel_AllowanceForProductRebatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=us-gaap_AllowanceForSalesReturnsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |