XML 79 R69.htm IDEA: XBRL DOCUMENT
v3.21.2

PFIZER PROMOTION AGREEMENT (Details) - Pfizer Inc - Cologuard promotion agreement - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Service fee based on incremental gross profits over specified baselines and royalties | $ 16.8 | $ 18.0 | $ 63.6 | $ 39.7
Charges for promotion, sales and marketing | $ 30.2 | $ 15.8 | $ 88.0 | $ 56.3

X
- Definition Represents service fee based on incremental gross profits over specified baselines and royalties. + References No definition available. + Details
Name: | exas_ServiceFeeBasedOnIncrementalGrossProfitsOverSpecifiedBaselinesAndRoyalties
Namespace Prefix: | exas_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
Name: | us-gaap_MarketingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=exas_PfizerIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=us-gaap_ManufacturedProductOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |