Stock-Based Compensation - Additional Information (Detail) - $ / shares	3 Months Ended			6 Months Ended
	Jan. 01, 2017	Oct. 02, 2016	Dec. 27, 2015	Jan. 01, 2017	Dec. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period intrinsic value (in shares)	0	0		0
Stock options exercisable (in shares)	33,829			33,829
Number of shares vested (in shares)	356			20,011
Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period intrinsic value (in shares)			5,076		129,798
Options granted in period (in dollars per share)					$ 23.02
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period intrinsic value (in shares)	16,905		14,234