Consolidated Balance Sheet Parentheticals (Parentheticals) - $ / shares	Dec. 25, 2016	Sep. 25, 2016
Preferred Stock, Par or Stated Value Per Share	$ 0	$ 0
Preferred Stock, Shares Authorized	500,000	500,000
Preferred Stock, Shares Issued	0	0
Common Class A [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	120,000,000	120,000,000
Common Stock, Shares, Issued	56,574,000	55,771,000
Common Class B [Member]
Common Stock, Par or Stated Value Per Share	$ 2.00	$ 2.00
Common Stock, Shares Authorized	30,000,000	30,000,000
Common Stock, Shares, Issued	0	0