Restructuring Reserves 2012 Restructuring Plan (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (163,000)	$ 2,280,000
Restructuring Plan 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2,500,000
Payments for restructuring		2,300,000
Restructuring Plan 2012 [Member] | Accrued expenses and other liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve	200,000	200,000
Restructuring Plan 2012 [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,500,000	1,000
Restructuring Reserve [Roll Forward]
Restructuring reserve		2,449,000
Restructuring reserve, settled with cash		(2,256,000)
Restructuring reserve, settled without cash		0
Restructuring reserve, translation adjustment		(34,000)
Restructuring reserve	$ 160,000	$ 160,000