Employee Benefits - Plan Assets and Benefit Obligations of Defined Benefit Pension Plans (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Settlement and curtailment	$ 874	$ 3,583
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	3,121	3,602	3,781
Interest cost on projected benefit obligation	24,314	24,373	24,191
Expected return on plan assets	(24,329)	(25,070)	(24,146)
Net amortization and deferrals	20,180	11,888	7,441
Settlement and curtailment		444
Special termination benefits
Expense	23,286	15,237	11,267
Defined contribution and other retirement plans	7,039	6,550	7,169
Total expense	30,325	21,787	18,436
Net actuarial loss	32,569	77,924
Recognized actuarial loss	(19,810)	(11,441)
Prior service cost	(370)	(891)
Total recognized in OCI (before tax effects)	12,389	65,592
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	12,585	10,560	9,804
Interest cost on projected benefit obligation	30,944	34,033	32,954
Expected return on plan assets	(43,728)	(45,386)	(41,569)
Net amortization and deferrals	6,443	5,360	5,214
Settlement and curtailment	873	3,139	182
Special termination benefits		738	178
Expense	7,117	8,444	6,763
Defined contribution and other retirement plans	4,837	4,113	4,459
Total expense	11,954	12,557	11,222
Net actuarial loss	53,469	32,218
Recognized actuarial loss	(7,181)	(8,352)
Prior service cost		(191)
Recognized prior service cost	(135)	(147)
Currency translation adjustment	6,068	355
Total recognized in OCI (before tax effects)	$ 52,221	$ 23,883