Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss), Net of Tax (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), Beginning balance	$ (30,565)	$ (22,709)
Other comprehensive loss before reclassifications	(3,150)	(12,091)
Amounts reclassified from accumulated other comprehensive income (loss)	4,534	4,235
Other comprehensive income (loss), net of tax	1,384	(7,856)	(13,790)
Accumulated other comprehensive income (loss), Ending balance	(29,181)	(30,565)	(22,709)
Accumulated Comprehensive (Loss) Foreign Currency Translation Component of Equity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), Beginning balance	28,516	27,463
Other comprehensive loss before reclassifications	(20,720)	1,053
Other comprehensive income (loss), net of tax	(20,720)	1,053
Accumulated other comprehensive income (loss), Ending balance	7,796	28,516
Accumulated Other Comprehensive Income (Loss) Pension and Postretirement Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), Beginning balance	(59,081)	(50,172)
Other comprehensive loss before reclassifications	17,570	(13,144)
Amounts reclassified from accumulated other comprehensive income (loss)	4,534	4,235
Other comprehensive income (loss), net of tax	22,104	(8,909)
Accumulated other comprehensive income (loss), Ending balance	$ (36,977)	$ (59,081)