Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 22,193	$ 17,767
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, authorized	1,000	1,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.20	$ 0.20
Common stock, authorized	250,000	250,000
Common stock, issued	95,633	93,840
Common stock, outstanding	95,633	93,840