Restructuring Reserves 2012 Restructuring Plan (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 224,000	$ 2,443,000
Restructuring Plan 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2,400,000
Payments for restructuring		1,300,000
Restructuring Plan 2012 [Member] | Accrued expenses and other liabilities [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve	1,100,000	1,100,000
Restructuring Plan 2012 [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,400,000
Restructuring Reserve [Roll Forward]
Restructuring reserve		2,449,000
Restructuring reserve, settled with cash		(1,301,000)
Restructuring reserve, settled without cash		0
Restructuring reserve, translation adjustment		(26,000)
Restructuring reserve	$ 1,122,000	$ 1,122,000