Summary of significant accounting policies (Details)	9 Months Ended
Sep. 30, 2016 Company
Summary of significant accounting policies [Abstract]
Number of independent public companies	2

Refers to the number of publicly traded companies into which entity is separated.

No definition available.

Name:	ebs_NumberOfIndependentPublicTradedEntities
Namespace Prefix:	ebs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration