Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Jun. 30, 2012
Other assets:
Total assets	$ 28.9	$ 19.6
Accrued expenses:
Total liabilities	187.3	218.2
Fair Value, Measurements, Recurring
Other assets:
Money market mutual funds	2.8	3.2
Equity and fixed income mutual funds	23.2	18.9
Cash surrender value of life insurance policies	13.6	13.0
Total assets	39.6	35.1
Accrued expenses:
Derivative financial instruments	1.4	1.4
Total liabilities	1.4	1.4
Level 1
Other assets:
Total assets	28.9	19.6
Accrued expenses:
Total liabilities	0	0
Level 1 | Fair Value, Measurements, Recurring
Other assets:
Money market mutual funds	2.8	3.2
Equity and fixed income mutual funds	23.2	18.9
Cash surrender value of life insurance policies	0	0
Total assets	26.0	22.1
Accrued expenses:
Derivative financial instruments	0	0
Total liabilities	0	0
Level 2
Other assets:
Total assets	0	0
Accrued expenses:
Total liabilities	187.3	218.2
Level 2 | Fair Value, Measurements, Recurring
Other assets:
Money market mutual funds	0	0
Equity and fixed income mutual funds	0	0
Cash surrender value of life insurance policies	13.6	13.0
Total assets	13.6	13.0
Accrued expenses:
Derivative financial instruments	1.4	1.4
Total liabilities	$ 1.4	$ 1.4