Amounts in Accumulated Other Comprehensive Income Loss Expected to be Recognized As Components of Net Periodic Benefit Cost During 2012 (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service cost (credit)	$ (243)
Net loss	7,658
Total	7,415
Pension Plans | U S Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service cost (credit)	104
Net loss	6,327
Total	6,431
Pension Plans | Non U S Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service cost (credit)	26
Net loss	935
Total	961
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service cost (credit)	(373)
Net loss	396
Total	$ 23