Business interruption insurance recovery (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013
Business interruption insurance recovery [Abstract]
Business interruption insurance revenue	$ 1.7

Revenue received for business interruption insurance recovery.

No definition available.

Name:	ebs_BusinessInterruptionInsuranceRevenue
Namespace Prefix:	ebs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration