Restructuring (Narrative) (Details)	3 Months Ended
Mar. 31, 2015 employees
Restructuring Cost and Reserve [Line Items]
Reduction in employees	50

The expected number of positions to be eliminated as a result of restructuring activities.

No definition available.

Name:	us-gaap_RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration