Employee Benefits - Pension and Other Defined Contribution Retirement Plan Expenses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Loss due to settlements and special terminations			$ 0	$ 874
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	881	938	2,643	2,815
Interest cost on projected benefit obligation	5,740	6,002	17,222	18,005
Expected return on plan assets	(6,557)	(6,041)	(19,671)	(18,124)
Net amortization and deferrals	5,868	4,913	17,606	14,738
Net periodic benefit cost	5,932	5,812	17,800	17,434
Defined contribution and other retirement plans	1,585	1,651	5,531	5,515
Total expense	7,517	7,463	23,331	22,949
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	4,086	3,064	12,256	9,422
Interest cost on projected benefit obligation	7,718	7,560	23,204	23,144
Expected return on plan assets	(11,859)	(9,813)	(35,653)	(32,701)
Net amortization and deferrals	2,315	1,589	6,967	4,810
Loss due to settlements and special terminations	35	0	110	874
Net periodic benefit cost	2,295	2,400	6,884	5,549
Defined contribution and other retirement plans	1,548	1,150	2,838	3,479
Total expense	$ 3,843	$ 3,550	$ 9,722	$ 9,028