Changes In Equity And Comprehensive Income (Classification Of Accumulated Other Comprehensive Income Reflected On Consolidated Balance Sheets) (Detail) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, beginning balance	$ (48,651,000)
Other comprehensive income (loss) before reclassifications	(60,684,000)
Amounts reclassified from accumulated other comprehensive income	3,167,000
Net current-period othre comprehensive income (loss)	(57,517,000)
Accumulated other comprehensive loss, ending balance	(106,168,000)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, beginning balance	(121,318,000)	[1]
Other comprehensive income (loss) before reclassifications	0	[1]
Amounts reclassified from accumulated other comprehensive income	3,167,000	[1]
Net current-period othre comprehensive income (loss)	3,167,000	[1]
Accumulated other comprehensive loss, ending balance	(118,151,000)	[1]	(121,318,000)	[1]
Changes in pension and post-retirement plan assets and benefit obligation, Tax benefit	53,002		53,373
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, beginning balance	72,667,000
Other comprehensive income (loss) before reclassifications	(60,684,000)
Amounts reclassified from accumulated other comprehensive income	0
Net current-period othre comprehensive income (loss)	(60,684,000)
Accumulated other comprehensive loss, ending balance	$ 11,983,000

[1] Net of tax benefit of $53,002 and $53,373 for September 30, 2014 and December 31, 2013, respectively.