CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 26, 2015	Sep. 27, 2014
Current assets:
Allowance for doubtful accounts	$ 3,520	$ 11,122
Partners' capital:
Common units issued (in units)	60,531,000	60,317,000
Common units outstanding (in units)	60,531,070	60,317,000