Activity For Restructuring Program (Detail) (USD $)	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2011 Workforce reductions	Mar. 31, 2011 Consolidation of excess facilities and other contractual obligations	Mar. 31, 2012 Restructuring 2012 Program	Mar. 31, 2012 Restructuring 2012 Program Workforce reductions	Mar. 31, 2012 Restructuring 2012 Program Consolidation of excess facilities and other contractual obligations	Mar. 31, 2012 Restructuring Other Programs	Mar. 31, 2012 Restructuring Other Programs Workforce reductions	Mar. 31, 2012 Restructuring Other Programs Consolidation of excess facilities and other contractual obligations
Beginning Balance	$ 81,764,000	$ 53,946,000	$ 27,818,000	$ 0	$ 0	$ 0	$ 79,975,000	$ 49,863,000	$ 30,112,000
Charges	23,299,000	4,640,000	18,659,000	24,666,000	23,348,000	1,318,000	(487,000)	(2,876,000)	2,389,000
Utilization	(32,859,000)	(22,298,000)	(10,561,000)	(3,416,000)	(2,706,000)	(710,000)	(19,995,000)	(15,675,000)	(4,320,000)
Ending Balance	$ 72,204,000	$ 36,288,000	$ 35,916,000	$ 21,250,000	$ 20,642,000	$ 608,000	$ 59,493,000	$ 31,312,000	$ 28,181,000