Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 30, 2019	Dec. 29, 2018
Allowance on trade accounts receivable	$ 7,144	$ 6,413
Allowance on other receivables	6,907	6,216
Accumulated depreciation and amortization on operating property	$ 256,707	$ 250,153
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized shares	160,000,000	160,000,000
Common stock, issued shares	68,047,041	67,870,962
Treasury stock, shares	27,884,681	27,755,001