Performance-Contingent Restricted Stock Activity (Detail) - Performance Contingent Restricted Stock - $ / shares shares in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Number of Shares
Number of Shares, Balance at beginning of period	1,404	1,229	888
Number of Shares, Initial grant	829	732	828
Number of Shares, Vested	(853)	(759)	(571)
Number of Shares, Forfeitures	(83)	(43)	(11)
Number of shares, Balance at end of period	1,349	1,404	1,229
Weighted Average Fair Value
Weighted Average Fair Value, Balance at beginning of period	$ 19.09	$ 15.88	$ 12.61
Weighted Average Fair Value, Initial grant	20.18	22.72	16.37
Weighted Average Fair Value, Vested	16.22	16.11	10.62
Weighted Average Fair Value, Forfeitures	20.99	19.73	15.88
Weighted Average Fair Value, Balance at end of period	$ 21.26	$ 19.09	$ 15.88
Performance Contingent Return On Invested Capital Shares
Number of Shares
Number of Shares, Supplemental grant for exceeding ROIC modifier	100	51
Weighted Average Fair Value
Weighted Average Fair Value, Supplemental grant for exceeding ROIC modifier	$ 14.37	$ 14.37
Performance Contingent Total Shareholders Return Shares
Number of Shares
Number of Shares, Supplemental grant for exceeding ROIC modifier		194	95
Number of Shares, Grant reduction for not achieving the TSR modifier	(48)
Weighted Average Fair Value
Weighted Average Fair Value, Supplemental grant for exceeding ROIC modifier		$ 15.45	$ 10.62
Weighted Average Fair Value, Grant reduction for not achieving the TSR modifier	$ 17.22