Commitments and Contingencies (Service Provider Contracts) (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Year ending March 31:
2017	$ 2,572
2018	891
Total minimum payments	$ 3,463

The amount of service provider expense expected to be recognized during year two of the five succeeding fiscal years.

No definition available.

Name:	EGHT_ServiceProvidersFutureMinimumPaymentsDueInTwoYears
Namespace Prefix:	EGHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant