Employee Benefits - Amounts Recognized in Accumulated Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ 209,156	$ 196,398
Prior service cost (credit)	786	1,156
Total AOCI (before tax effects)	209,942	197,554
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	231,857	179,512
Prior service cost (credit)	(431)	(307)
Total AOCI (before tax effects)	231,426	179,205
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	31,087	44,959
Prior service cost (credit)	(19,719)	(24,440)
Total AOCI (before tax effects)	$ 11,368	$ 20,519