Business Interruption Insurance Recovery (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2012
Business Interruption Insurance Recovery [Abstract]
BusinessInterruptionInsuranceRevenue	$ 1.7

Revenue received for business interruption insurance recovery.

No definition available.

Name:	ebs_Businessinterruptioninsurancerevenue
Namespace Prefix:	ebs_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration