Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 1,188	$ 1,008
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	49,962,000	49,176,000
Common stock, shares outstanding	33,653,000	33,600,000
Treasury stock, shares	16,309,000	15,576,000