Share-Based Compensation - Compensation Expense and Related Tax Benefit for Equity-Based Payments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation	$ 4,358	$ 4,245	$ 6,504	$ 8,045
Income tax benefit	1,523	1,766	2,253	2,786
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation	276	298	460	533
Selling and Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation	541	399	1,006	760
Research and Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation	459	434	784	822
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total compensation	$ 3,082	$ 3,114	$ 4,254	$ 5,930