Financial Information by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Jun. 30, 2012
Schedule Of Geographical Segments [Line Items]
Revenues	$ 222,428	$ 209,723
Income from operations	19,548	15,475
Total assets	880,382	839,300	873,731
Depreciation and amortization expense	8,056	8,776
United States [Member]
Schedule Of Geographical Segments [Line Items]
Revenues	185,400	173,600
Income from operations	16,200	12,500
Total assets	808,300	778,700
Depreciation and amortization expense	6,800	7,500
Canada [Member]
Schedule Of Geographical Segments [Line Items]
Revenues	37,000	36,100
Income from operations	3,300	3,000
Total assets	157,400	137,900
Depreciation and amortization expense	1,300	1,300
Elimination [Member]
Schedule Of Geographical Segments [Line Items]
Revenues	0	0
Income from operations	0	0
Total assets	(85,300)	(77,300)
Depreciation and amortization expense	$ 0	$ 0