Components of Other Comprehensive Income Loss (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Pre Tax
Cumulative translation adjustment, Pre-tax	$ 4,144	$ (26,731)	$ (23,109)	$ (11,700)
Pension and other postretirement adjustments, Pre-tax	1,521	3,060	3,456	4,807
Reclassification adjustments for derivatives, Pre-tax	1,867	1,920	3,740	3,845
Total other comprehensive income (loss), Pre-tax	7,532	(21,751)	(15,913)	(3,048)
Tax
Cumulative translation adjustment, Tax
Pension and other postretirement adjustments, Tax	(583)	(1,095)	(1,245)	(1,719)
Reclassification adjustments for derivatives, Tax	(680)	(701)	(1,363)	(1,405)
Total other comprehensive income (loss), Tax	(1,263)	(1,796)	(2,608)	(3,124)
Net of tax
Cumulative translation adjustment, net of tax	4,144	(26,731)	(23,109)	(11,700)
Pension and other postretirement adjustments, net of tax	938	1,965	2,211	3,088
Reclassification adjustments for derivatives, net of tax	1,187	1,219	2,377	2,440
Total other comprehensive income (loss), net of tax	$ 6,269	$ (23,547)	$ (18,521)	$ (6,172)