Acquisition Integration and Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Remaining restructuring reserve	$ 4,201
Summary of cost reduction and restructuring actions [Roll Forward]
Restructuring and cost reduction related cost	268
Legal costs related to restructuring activities	19
Reserve reversed related to facility closure	40
Restructuring charges	247	1,084
Expenses related to cost reduction program [Abstract]
Period ended	247	1,084
Cumulative since program inception	26,180
Americas [Member]
Expenses related to cost reduction program [Abstract]
Period ended	213	718
Cumulative since program inception	15,962
Europe [Member]
Expenses related to cost reduction program [Abstract]
Period ended	75	331
Cumulative since program inception	7,049
Asia Pacific [Member]
Expenses related to cost reduction program [Abstract]
Period ended	(41)	35
Cumulative since program inception	1,258
Corporate [Member]
Expenses related to cost reduction program [Abstract]
Period ended	0	0
Cumulative since program inception	1,911
Actions Initiated in 2008 [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	2,761
Adjustments	52
Cash payments	(203)
End of Period	2,610
Actions Initiated in 2008 [Member] | Employee Terminations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	0
Adjustments	0
Cash payments	0
End of Period	0
Actions Initiated in 2008 [Member] | Lease Obligations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	2,761
Adjustments	52
Cash payments	(203)
End of Period	2,610
Actions Initiated in 2010 [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	402
Adjustments	(8)
Cash payments	(394)
End of Period	0
Actions Initiated in 2010 [Member] | Employee Terminations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	402
Adjustments	(8)
Cash payments	(394)
End of Period	0
Actions Initiated in 2010 [Member] | Lease Obligations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	0
Adjustments	0
Cash payments	0
End of Period	0
Actions Initiated in 2011 [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	15
Adjustments	(15)
End of Period	0
Actions Initiated in 2011 [Member] | Employee Terminations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	15
Adjustments	(15)
End of Period	0
Actions Initiated in 2011 [Member] | Lease Obligations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	0
Adjustments	0
End of Period	0
Actions Initiated In 2012 [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	2,577
New accruals	6
Adjustments	16
Cash payments	(1,099)
End of Period	1,500
Actions Initiated In 2012 [Member] | Employee Terminations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	1,390
New accruals	6
Adjustments	(5)
Cash payments	(860)
End of Period	531
Actions Initiated In 2012 [Member] | Lease Obligations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	1,187
New accruals	0
Adjustments	21
Cash payments	(239)
End of Period	969
Actions Initiated In 2013 [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	0
New accruals	218
Adjustments	(1)
Cash payments	(126)
End of Period	91
Actions Initiated In 2013 [Member] | Employee Terminations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	0
New accruals	218
Adjustments	(1)
Cash payments	(126)
End of Period	91
Actions Initiated In 2013 [Member] | Lease Obligations [Member]
Summary of cost reduction and restructuring actions [Roll Forward]
Beginning of Period	0
New accruals	0
Adjustments	0
Cash payments	0
End of Period	0
Accrued Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve included in accrued expenses	2,487
Other Long-term Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve included in other long term liabilities	$ 1,714