Reorganization and Expense-Reduction Program Costs Reorganization and Expense-Reduction Program Costs - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 29, 2013 Employees	Jun. 30, 2012 Employees	Jun. 29, 2013 Employees	Jun. 30, 2012 Employees
Restructuring Cost and Reserve [Line Items]
Headcount reduction	98	24	218	103