Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (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
Statement of Comprehensive Income [Abstract]
Foreign Currency Translation Adjustments, Beginning balance			$ (93,722)	$ (111,409)
OCI before reclassifications, Foreign Currency Translation Adjustments			(11,118)	2,169
Net current period other comprehensive income (loss), Foreign Currency Translation Adjustments	5,707	26,228	(11,118)	2,169
Foreign Currency Translation Adjustments, Ending balance	(104,840)	(109,240)	(104,840)	(109,240)
(Losses) Gains on Derivatives Qualifying as Hedges, Beginning balance			(218)	4,237
OCI before reclassifications, (Losses) Gains on Derivatives Qualifying as Hedges			(4,241)	(919)
Amounts reclassified from AOCI, (Losses) Gains on Derivatives Qualifying as Hedges			80	(587)
Net current period other comprehensive income (loss), (Losses) Gains on Derivatives Qualifying as Hedges	(1,859)	(3,940)	(4,161)	(1,506)
(Losses) Gains on Derivatives Qualifying as Hedges, Ending balance	(4,379)	2,731	(4,379)	2,731
Pension and Postretirement Liability Adjustment, Beginning balance			(309,685)	(268,137)
OCI before reclassifications, Pension and Postretirement Liability Adjustment			0	0
Amounts reclassified from AOCI, Pension and Postretirement Liability Adjustment			15,346	12,949
Net current period other comprehensive income (loss), Pension and Postretirement Liability Adjustment	5,126	4,178	15,346	12,949
Pension and Postretirement Liability Adjustment, Ending balance	(294,339)	(255,188)	(294,339)	(255,188)
Beginning balance, Total			(403,625)	(375,309)
OCI before reclassifications, Total			(15,359)	1,250
Amounts reclassified from AOCI, Total			15,426	12,362
Net current period other comprehensive income (loss), Total			67	13,612
Ending balance, Total	$ (403,558)	$ (361,697)	$ (403,558)	$ (361,697)