Operating Segments and Geographic Information - Schedule of Revenues from External Customers and Long-Lived Assets Based on Physical Location (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2011	Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Geographic Information [Line Items]
Revenues	$ 477,687	$ 465,234	$ 458,218	$ 439,600	$ 441,320	$ 491,811	$ 510,832	$ 438,224	$ 1,840,739	$ 1,882,187	$ 1,543,386
Percent of total revenues									100.00%	100.00%	100.00%
Long-lived assets	371,050				343,945				371,050	343,945	334,448
United States [Member]
Geographic Information [Line Items]
Revenues									825,439	832,681	650,257
Percent of total revenues									45.00%	44.00%	42.00%
Long-lived assets	165,619				137,576				165,619	137,576	128,137
Canada & Latin America [Member]
Geographic Information [Line Items]
Revenues									303,920	276,001	207,417
Percent of total revenues									17.00%	15.00%	14.00%
Long-lived assets	42,364				20,398				42,364	20,398	18,032
Europe, Africa & Middle East [Member]
Geographic Information [Line Items]
Revenues									373,689	395,519	356,808
Percent of total revenues									20.00%	21.00%	23.00%
Long-lived assets	89,871				87,071				89,871	87,071	87,317
Asia Pacific [Member]
Geographic Information [Line Items]
Revenues									337,691	377,986	328,904
Percent of total revenues									18.00%	20.00%	21.00%
Long-lived assets	$ 73,196				$ 98,900				$ 73,196	$ 98,900	$ 100,962