CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Net actuarial gains (losses), deferred income tax (benefit) expense	$ (18,771)	$ 0	$ 49
Actuarial loss reclassification, deferred income tax expense	0	0	1,635
Prior service credit, deferred income tax expense	0	0	2,015
Prior service credit reclassification, deferred income tax benefit	$ 0	$ 0	$ (10,998)