XML 63 R52.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Balance Sheet Accounts (Summary of Long-term Liabilities) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Jun. 30, 2017
--- | --- | ---
Organization Consolidation And Presentation Of Financial Statements [Abstract] |  |
Acquisition related deferred payments, less current portion | $ 14,147 |
Acquisition-related contingent consideration obligations, less current portion | 33,256 |
Other | 18,037 | $ 8,526
Total other long-term liabilities | $ 65,440 | $ 8,526

X
- Definition Acquisition related contingent considerations. + References No definition available. + Details
Name: | extr_AcquisitionRelatedContingentConsiderations
Namespace Prefix: | extr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred payment related to acquisitions. + References No definition available. + Details
Name: | extr_DeferredPaymentRelatedToAcquisitions
Namespace Prefix: | extr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Other liabilities of other non current liabilities. + References No definition available. + Details
Name: | extr_OtherLiabilitiesOfOtherNonCurrentLiabilities
Namespace Prefix: | extr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_OtherLiabilitiesNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant