Changes In Equity And Comprehensive Income (Classification Of Accumulated Other Comprehensive Income Reflected On Consolidated Balance Sheets) (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011
Changes In Equity And Comprehensive Income [Line Items]
Currency translation adjustment	$ 65,824		$ 64,910
Changes in pension and post-retirement plan assets and benefit obligation, net of tax benefit	(148,135)	[1]	(158,422)	[1]
Accumulated other comprehensive loss	(82,311)		(93,512)
Changes in pension and post-retirement plan assets and benefit obligation, Tax benefit	$ 71,874		$ 76,179

[1] Net of tax benefit of $71,874 and $76,179 for September 30, 2012 and December 31, 2011, respectively.