Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2013	Jul. 01, 2012
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Class A common stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	36,280,425	34,465,207
Class B common stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	42,125,465	42,138,465
Treasury stock Class A
Treasury stock, shares	9,257,231	6,767,166
Treasury stock Class B
Treasury stock, shares	5,280,000	5,280,000