The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

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Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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Restructuring and Acquisition-Related Charges - Additional information (Detail) (USD $)	12 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 2013	Dec. 31, 2012 2014 and beyond	Dec. 31, 2011 Restructuring 2011 programs Position	Dec. 31, 2010 Restructuring 2010 program Position	Sep. 30, 2012 Restructuring 2012 programs	Dec. 31, 2012 Restructuring 2012 programs Position
Restructuring Cost and Reserve [Line Items]
Restructuring and acquisition-related charges	$ 110,590,000	$ 97,334,000	$ 84,375,000
Restructuring charges	100,900,000	86,019,000	76,662,000			63,200,000	37,800,000	108,573,000
Acquisition-related charges	9,700,000	11,300,000	7,700,000
Number of positions eliminated						787	400		1,163
Lease termination costs for facilities	20,800,000	26,100,000	31,600,000
Remaining cash portion owed for restructuring programs				$ 11,700,000	$ 12,300,000