Amounts Included in Accumulated Other Comprehensive Loss (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ (109,913)	$ (115,282)	$ (63,026)
Other comprehensive income (loss) before reclassifications	61,091	(5,162)	(60,136)
Amounts reclassified from accumulated other comprehensive loss	10,703	10,531	7,880
Other comprehensive income (loss)	71,794	5,369	(52,256)
Ending Balance	(38,119)	(109,913)	(115,282)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(105,675)	(99,209)	(73,607)
Other comprehensive income (loss) before reclassifications	59,648	(13,389)	(30,388)
Amounts reclassified from accumulated other comprehensive loss	7,106	6,923	4,786
Other comprehensive income (loss)	66,754	(6,466)	(25,602)
Ending Balance	(38,921)	(105,675)	(99,209)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(7,727)	(6,822)	(6,695)
Other comprehensive income (loss) before reclassifications	340	(4,513)	(3,221)
Amounts reclassified from accumulated other comprehensive loss	3,597	3,608	3,094
Other comprehensive income (loss)	3,937	(905)	(127)
Ending Balance	(3,790)	(7,727)	(6,822)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	3,489	(9,251)	17,276
Other comprehensive income (loss) before reclassifications	1,103	12,740	(26,527)
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Other comprehensive income (loss)	1,103	12,740	(26,527)
Ending Balance	$ 4,592	$ 3,489	$ (9,251)