Parent Company Condensed Balance Sheets (Parenthetical) (Detail) - $ / shares	Jan. 01, 2023	Jan. 02, 2022	Jan. 03, 2021
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	170,000,000	170,000,000
Common stock, shares issued	35,419,718	36,138,273
Common stock, shares outstanding	35,419,718	36,138,273
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized		5,000,000	5,000,000
Preferred stock, shares issued		0	0
Parent Company [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	170,000,000	170,000,000
Common stock, shares issued	35,419,718	36,138,273
Common stock, shares outstanding	35,419,718	36,138,273
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0