Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 26, 2024	Dec. 27, 2023
Assets
Accumulated depreciation	$ 160,053	$ 159,879
Accumulated amortization	$ 7,725	$ 8,220
Shareholders' deficit
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	135,000,000	135,000,000
Common stock, shares issued (in shares)	53,339,000	52,906,000
Common stock, shares outstanding (in shares)	51,569,000	52,239,000
Treasury stock, at cost (in shares)	1,770,000	667,000