Consolidated Statements of Stockholders' Equity (Unaudited) (USD $) In Millions	Additional Paid-in Capital [Member]	Earnings Invested In The Business [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Common Class A [Member]	Common Class B [Member]	Common Class A Treasury Stock [Member]	Common Class B Treasury Stock [Member]	Total
Balance at Jul. 03, 2011	$ 28.0	$ 617.5	$ 40.3	$ 36.6	$ 3.5	$ (68.1)	$ (0.6)
Other comprehensive income, net of tax			(19.4)					(19.4)
Net earnings		19.7						19.7
Dividends		(1.9)
Exercise of stock options, restricted stock awards and other	1.3
Exercise of stock options, restricted stock awards and other						0.1
Balance at Oct. 02, 2011	29.3	635.3	20.9	36.6	3.5	(68.0)	(0.6)	657.0
Balance at Jan. 02, 2011	28.0	597.6	29.0	36.6	3.5	(70.3)	(0.6)
Other comprehensive income, net of tax			(8.1)					(8.1)
Net earnings		39.6						39.6
Dividends		(1.9)
Exercise of stock options, restricted stock awards and other	1.3
Exercise of stock options, restricted stock awards and other						2.3
Balance at Oct. 02, 2011	29.3	635.3	20.9	36.6	3.5	(68.0)	(0.6)	657.0
Balance at Jan. 01, 2012	28.8	657.5	16.2	36.6	3.5	(66.3)	(0.6)	675.7
Other comprehensive income, net of tax			14.8					14.8
Net earnings		41.2						41.2
Dividends		(5.7)
Exercise of stock options, restricted stock awards and other	(1.1)
Exercise of stock options, restricted stock awards and other						3.8
Balance at Sep. 30, 2012	27.7	693.0	31.0	36.6	3.5	(62.5)	(0.6)	728.7
Balance at Jul. 01, 2012	27.4	678.3	25.7	36.6	3.5	(62.6)	(0.6)
Other comprehensive income, net of tax			5.3					5.3
Net earnings		16.6						16.6
Dividends		(1.9)
Exercise of stock options, restricted stock awards and other	0.3
Exercise of stock options, restricted stock awards and other						0.1
Balance at Sep. 30, 2012	$ 27.7	$ 693.0	$ 31.0	$ 36.6	$ 3.5	$ (62.5)	$ (0.6)	$ 728.7