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Interest Rate Swaps (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 18, 2020
Dec. 26, 2020
Dec. 26, 2020
Dec. 28, 2019
Dec. 29, 2018
Derivative [Line Items]          
Accumulated Other Comprehensive Income (Loss), Net of Tax   $ (3,243,000) $ (3,243,000) $ 199,000  
Fair Value, Option, Changes in Fair Value, Gain (Loss)     (5,666,000) (4,332,000)  
Other Comprehensive Income (Loss), Net of Tax     (3,442,000) (4,332,000) $ 456,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax     (4,631,000) (5,556,000) $ 612,000
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax     (1,189,000) (1,224,000)  
Derivative Asset, Fair Value, Gross Asset   0 0 649,000  
Derivative Liability   4,364,000 $ 4,364,000 $ 382,000  
New Accounting Pronouncement or Change in Accounting Principle, Description of Prior-period Information Retrospectively Adjusted     — 2,084,880 —
Employee Stock Option          
Derivative [Line Items]          
Dividend yield, minimum (in hundredths)     1.50% 1.40% 1.60%
Forfeiture rate, minimum (in hundredths)     7.00% 7.30% 7.30%
Interest Rate Swap Short Term Portion [Member]          
Derivative [Line Items]          
Derivative Asset, Current   0 $ 0 $ 558,000  
Interest Rate Swap Long Term Portion [Member]          
Derivative [Line Items]          
Derivative Asset, Noncurrent   0 0 91,000  
Derivative Asset, Noncurrent   0 $ 0 91,000  
Beginning Balance [Member]          
Derivative [Line Items]          
Accumulated Other Comprehensive Income (Loss), Net of Tax       199,000 $ 3,814,000
Accounting Standards Update 2017-12 [Member]          
Derivative [Line Items]          
New Accounting Pronouncement or Change in Accounting Principle, Description of Prior-period Information Retrospectively Adjusted     717    
Other Comprehensive Income (Loss), Net of Tax [Member]          
Derivative [Line Items]          
Other Comprehensive Income (Loss), Net of Tax       (3,615,000)  
Interest Rate Swap Liability Portion [Member]          
Derivative [Line Items]          
Derivative Liability, Current   1,227,000 $ 1,227,000 90,000  
Derivative Liability, Noncurrent   $ 3,137,000 3,137,000 $ 292,000  
March 2020 Term Loan [Member]          
Derivative [Line Items]          
Interest Rate Swap, Inception Date Mar. 18, 2020        
Interest Rate Swap, Maturity Date   Mar. 18, 2025      
Derivative, Notional Amount   $ 200,000,000 $ 200,000,000