Commitments and Contingencies (Service Provider Contracts) (Details) $ in Thousands	Mar. 31, 2017 USD ($)
Year ending March 31:
2018	$ 1,364
2019	133
2020	8
Total minimum payments	$ 1,505

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

No definition available.

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