Derivative Financial Instruments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended					3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Mar. 30, 2013	Mar. 30, 2013	Mar. 30, 2013 Maximum	Mar. 30, 2013 Minimum	Mar. 30, 2013 Accrued expenses	Jun. 30, 2012 Accrued expenses	Mar. 30, 2013 Interest rate swap contracts	Mar. 30, 2013 Interest rate swap contracts	Mar. 30, 2013 Terminated interest rate swap	Mar. 30, 2013 Terminated interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Percentage of outstanding variable rate debt modified (in percent)	34.70%	34.70%
Interest rate swap contracts gain	$ 1.3	$ 1.4					$ 1.3	$ 1.4	$ 1.3	$ 1.7
Notional amount of terminated interest rate cash flow hedge derivatives							70.0	70.0
Accrued expenses on interest rate swap contracts					1.4	1.4
Net gain deferred in accumulated other comprehensive income	0.8	0.8
Loss expected to be reclassified to interest expense		0.3
Notional amount of interest rate swap contracts to pay fixed rates of interest and to receive variable rates of interest							90.0	90.0
Forward starting interest rate swap contracts							25.0	25.0
Notional amount of derivatives maturing in the next 12 months	15.0	15.0
Notional amount of derivatives maturing in the next 25-36 months		$ 75.0
Average rate on interest rate swap contracts	1.61%	1.61%
Maturity period of notional amount of interest rate swap 1 (in months)			12 months
Maturity period of notional amount of interest rate swap 3 (in months)			36 months	25 months