Share-Based Compensation - Performance-Based RSU and Time-Based RSU Activity (Detail) In Thousands, unless otherwise specified			3 Months Ended
	Mar. 30, 2013	Dec. 29, 2012	Mar. 30, 2013 Performance-Based RSUs [Member]	Mar. 30, 2013 Time-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, Shares	468	468	825	529
Awarded
Issued
Forfeited			(5)	(4)
Ending balance, Shares	468	468	820	525