Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 25, 2016	Sep. 26, 2015	Jun. 27, 2015
Accounts receivable allowance for doubtful accounts	$ 25,429	$ 19,296	$ 18,573
Common Stock
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares outstanding	11,998,472	11,908,317	11,908,317
Class A Common Stock
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares outstanding	37,197,569	36,462,299	35,970,174
Class B Stock
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares outstanding	1,652,262	1,652,262	1,652,262