Changes in Accumulated Balances for Each Component of Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of Beginning Period	$ (433,721)	$ (481,425)	$ (443,676)	$ (464,486)
Other comprehensive (loss) income before reclassifications	28,434	(37,941)	33,442	(56,871)
Amounts reclassified from accumulated other comprehensive income (loss)	5,023	3,446	9,970	5,437
Other Comprehensive Income (Loss), Net of Tax	33,457	(34,495)	43,412	(51,434)
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of End Period	(400,264)	(515,920)	(400,264)	(515,920)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of Beginning Period	(6,794)	4,426	(10,789)	(2,583)
Other comprehensive (loss) income before reclassifications	(5,536)	(872)	(4,308)	7,266
Amounts reclassified from accumulated other comprehensive income (loss)	2,830	326	5,597	(803)
Other Comprehensive Income (Loss), Net of Tax	(2,706)	(546)	1,289	6,463
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of End Period	(9,500)	3,880	(9,500)	3,880
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of Beginning Period	(129,858)	(187,225)	(131,946)	(190,656)
Other comprehensive (loss) income before reclassifications	464	314	372	625
Amounts reclassified from accumulated other comprehensive income (loss)	2,193	3,120	4,373	6,240
Other Comprehensive Income (Loss), Net of Tax	2,657	3,434	4,745	6,865
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of End Period	(127,201)	(183,791)	(127,201)	(183,791)
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of Beginning Period	(297,069)	(298,626)	(300,941)	(271,247)
Other comprehensive (loss) income before reclassifications	33,506	(37,383)	37,378	(64,762)
Other Comprehensive Income (Loss), Net of Tax	33,506	(37,383)	37,378	(64,762)
Accumulated Other Comprehensive Income (Loss), Net of Tax, as of End Period	$ (263,563)	$ (336,009)	$ (263,563)	$ (336,009)