Segment Information - Financial Information by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012	Jun. 30, 2012
Schedule Of Geographical Segments [Line Items]
Revenues	$ 226,631	$ 218,809	$ 678,233	$ 645,596
Income (loss) from operations	21,307	(9,582)	63,711	22,847
Total assets	897,525	867,100	897,525	867,100	873,731
Depreciation and amortization expense	8,100	8,500	24,150	25,619
United States
Schedule Of Geographical Segments [Line Items]
Revenues	187,300	180,000	561,700	533,000
Income (loss) from operations	16,300	(13,800)	50,500	11,500
Total assets	825,800	800,800	825,800	800,800
Depreciation and amortization expense	6,800	7,100	20,200	21,700
Canada
Schedule Of Geographical Segments [Line Items]
Revenues	39,300	38,800	116,500	112,600
Income (loss) from operations	5,000	4,200	13,200	11,300
Total assets	162,900	149,400	162,900	149,400
Depreciation and amortization expense	1,300	1,400	4,000	3,900
Elimination
Schedule Of Geographical Segments [Line Items]
Revenues	0	0	0	0
Income (loss) from operations	0	0	0	0
Total assets	(91,200)	(83,100)	(91,200)	(83,100)
Depreciation and amortization expense	$ 0	$ 0	$ 0	$ 0