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Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Dec. 28, 2019
Statement of Stockholders' Equity [Abstract]      
Adjustment related to unrealized gains (losses) on available-for-sale securities income tax effects $ 6,568 $ 3,157 $ 5,982
Dividends declared per share $ 2.68 $ 2.44 $ 2.28