Pension and Other Defined Contribution Retirement Plan Expenses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Defined Benefit Plan Disclosure [Line Items]
Loss due to settlements and special terminations			$ 874	$ 3,583
U. S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	938	975	2,815	2,702
Interest cost on projected benefit obligation	6,002	6,266	18,005	18,280
Expected return on plan assets	(6,041)	(6,264)	(18,124)	(18,803)
Net amortization and deferrals	4,913	3,270	14,738	8,915
Loss due to curtailments				444
Net periodic benefit cost	5,812	4,247	17,434	11,538
Defined contribution and other retirement plans	1,651	675	5,515	4,333
Total expense	7,463	4,922	22,949	15,871
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	3,064	2,601	9,422	7,825
Interest cost on projected benefit obligation	7,560	8,289	23,144	25,333
Expected return on plan assets	(9,813)	(11,141)	(32,701)	(33,830)
Net amortization and deferrals	1,589	1,294	4,810	3,999
Loss due to settlements and special terminations			874	3,877
Net periodic benefit cost	2,400	1,043	5,549	7,204
Defined contribution and other retirement plans	1,150	1,065	3,479	3,852
Total expense	$ 3,550	$ 2,108	$ 9,028	$ 11,056