Changes in Accumulated Other Comprehensive Income (Loss) By Component (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance, Change in Derivative Instruments Designated as Cash Flow Hedges	$ (700,000)		$ (1,400,000)
Other comprehensive income (loss) before income taxes, Change in Derivative Instruments Designated as Cash Flow Hedges	4,000,000		4,500,000
Tax (provision) benefit related to other comprehensive income (loss) before reclassifications, Change in Derivative Instruments Designated as Cash Flow Hedges	(1,200,000)	[1]	(1,600,000)	[1]
Reclassifications, net of tax, Change in Derivative Instruments Designated as Cash Flow Hedges	400,000		(600,000)
Other comprehensive income (loss), Change in Derivative Instruments Designated as Cash Flow Hedges	3,200,000		2,300,000
Ending balance, Change in Derivative Instruments Designated as Cash Flow Hedges	2,500,000		900,000
Beginning balance, Foreign Currency Translation Adjustment	32,600,000		41,100,000
Other comprehensive income (loss) before income taxes, Foreign Currency Translation Adjustment	(2,100,000)		4,700,000
Tax (provision) benefit related to other comprehensive income (loss) before reclassifications, Foreign Currency Translation Adjustment		[1]		[1]
Reclassifications, net of tax, Foreign Currency Translation Adjustment
Other comprehensive income (loss), Foreign Currency Translation Adjustment	(2,100,000)		4,700,000
Ending Balance, Foreign Currency Translation Adjustment	30,500,000		45,800,000
Beginning balance, Benefit Plan Adjustments	(113,100,000)		(106,300,000)
Other comprehensive income (loss) before reclassifications, Benefit Plan Adjustments
Tax (provision) benefit related to other comprehensive income (loss) before reclassifications, Benefit Plan Adjustments		[1]		[1]
Reclassifications, net of tax, Benefit Plan Adjustments	2,200,000		1,700,000
Other comprehensive income (loss), Benefit Plan Adjustments	2,200,000		1,700,000
Ending balance, Benefit Plan Adjustments	(110,900,000)		(104,600,000)
Beginning Balance, Total	(81,200,000)		(66,600,000)
Other comprehensive income (loss) before reclassifications, Total	1,900,000		9,200,000
Tax (provision) benefit related to other comprehensive income (loss) before reclassifications, Total	(1,200,000)	[1]	(1,600,000)	[1]
Reclassifications, net of tax, Total	2,600,000		1,100,000
Other comprehensive income (loss)	3,300,000		8,700,000
Ending Balance, Total	$ (77,900,000)		$ (57,900,000)

[1] Income taxes are not provided for foreign currency translation adjustment.