Restructuring Expenses (Details)	12 Months Ended
Dec. 31, 2012
Restructuring of a Manufacturing Site [Abstract]
Reduction in workforce due to restructuring	32

The number of positions eliminated during the period as a result of restructuring activities.

No definition available.

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