Activity in Rationalization Plan Reserves (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring Cost and Reserve [Line Items]
Ending Balance	$ 4,700	$ 4,600
2012 Rationalization Plans
Restructuring Cost and Reserve [Line Items]
Established	7,204
Utilized	(4,563)
Ending Balance	2,641
2010 Rationalization plans
Restructuring Cost and Reserve [Line Items]
Established	1,067	4,404	21,439
Utilized	(1,845)	(13,053)	(10,610)
Currency translation		447
Ending Balance	1,849	2,627	10,829
Employee Severance and Benefits | 2012 Rationalization Plans
Restructuring Cost and Reserve [Line Items]
Established	4,070
Utilized	(1,686)
Ending Balance	2,384
Employee Severance and Benefits | 2010 Rationalization plans
Restructuring Cost and Reserve [Line Items]
Established	597	2,973	12,641
Utilized	(2,713)	(11,622)	(1,812)
Currency translation		447
Ending Balance	511	2,627	10,829
Plant Exit Costs | 2012 Rationalization Plans
Restructuring Cost and Reserve [Line Items]
Established	1,494
Utilized	(1,237)
Ending Balance	257
Plant Exit Costs | 2010 Rationalization plans
Restructuring Cost and Reserve [Line Items]
Established	430	1,267	542
Utilized	908	(1,267)	(542)
Ending Balance	1,338
Non-Cash Asset Write-Down | 2012 Rationalization Plans
Restructuring Cost and Reserve [Line Items]
Established	1,640
Utilized	(1,640)
Non-Cash Asset Write-Down | 2010 Rationalization plans
Restructuring Cost and Reserve [Line Items]
Established	40	613	8,256
Utilized	(40)	(613)	(8,256)
Non-Cash Retirement Benefit Curtailment | 2010 Rationalization plans
Restructuring Cost and Reserve [Line Items]
Established		(449)
Utilized		$ 449