Members' Capital (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Members Capital [Roll Forward]
Balance at December 29, 2012			$ 254,546
Allocation of net income for the thirty-nine week period ended September 28, 2013	6,532	5,157	5,403	5,927
Prior year excess distribution			23	0
Balance at September 28, 2013	$ 260,811		$ 260,811