Deferred and Restricted Stock Activity (Detail) - Deferred and restricted stock - $ / shares shares in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Number of Shares
Number of Shares, Balance at beginning of period	149	126	151
Number of Shares, Granted	87	95	70
Number of Shares, Vested	(149)	(72)	(95)
Number of shares, Balance at end of period	87	149	126
Number of shares, Vested and deferred at end of period	192	331	222
Weighted Average Fair Value
Weighted Average Fair Value, Balance at beginning of period	$ 20.39	$ 21.89	$ 21.06
Weighted Average Fair Value, Granted	18.70	19.30	21.59
Weighted Average Fair Value, Vested	20.39	21.59	20.28
Weighted Average Fair Value, Balance at end of period	$ 18.70	$ 20.39	$ 21.89