Restructuring (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 employees	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Reduction in employees	200
Number of positions eliminated to date	150
Restructuring charges accrued	$ 26,408,000	$ 7,617,000
Effect of cost savings	10,000,000
Benefit Plan Curtailment/ Settlement [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges accrued	(1,100,000)
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Expected costs	3,000,000
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected costs	$ 5,000,000