Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Apr. 04, 2021	Jan. 03, 2021
Statement of Financial Position [Abstract]
Property and equipment, accumulated depreciation	$ 448,904	$ 434,328
Franchise rights, accumulated amortization	137,069	133,632
Franchise agreements, accumulated amortization	$ 13,165	$ 14,653
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	100	100
Preferred stock, shares outstanding	100	100
Voting common stock, par value	$ 0.01	$ 0.01
Voting common stock, shares authorized	100,000,000	100,000,000
Voting common stock, shares issued	53,607,062	52,653,964
Common stock, shares, outstanding	49,903,569	49,389,382