Schedule of Changes in Issued and Outstanding Common Shares and Treasury Stock (Detail) - shares	3 Months Ended		11 Months Ended
	Jan. 01, 2016	Dec. 26, 2014	Oct. 02, 2015
Equity [Abstract]
Balance, beginning of year	32,378,185		32,123,717
Shares issued under share-based compensation plans	72,349		254,468
Balance, end of current period	32,450,534		32,378,185
Balance, beginning of year	(2,831,350)		(269,228)
Shares purchased	0	(448,002)	(2,562,122)
Balance, end of current period	(2,831,350)		(2,831,350)
Shares outstanding, end of period	29,619,184		29,546,835