Description of Business and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)	12 Months Ended
Dec. 26, 2019	Dec. 27, 2018	Dec. 28, 2017
Summary of Significant Accounting Policies [Line Items]
Depreciation	$ 72,244,000	$ 61,470,000	$ 51,542,000
Percentage Of Cash Dividends	110.00%
Senior Notes	$ 109,000,000	118,000,000
Inventory, Net	$ 5,673,000	4,138,000
Concentration Risk, Labor Subject to Collective Bargaining Arrangements	As of December 26, 2019, 6% of the Company's employees were covered by a collective bargaining agreement, of which 15% were covered by an agreement that will expire within one year. As of December 27, 2018, 7% of the Company's employees were covered by a collective bargaining agreement, of which 96% were covered by an agreement that will expire within one year.
Interest Costs Capitalized	$ 53,000	65,000	400,000
Amortization of Debt Issuance Costs	$ 285,000	$ 287,000	$ 308,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	324,000	16,000	250,000
Senior Notes [Member]
Summary of Significant Accounting Policies [Line Items]
Senior Notes	$ 109,000,000
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share	$ 38.51	$ 38.51	$ 31.20
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Antidilutive Securities Excluded from Computation of Earnings Per Share	$ 41.90	$ 41.35	$ 31.55
Corporate Joint Venture One [Member] \| Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Ownership Interest In Joint Ventures	50.00%
Corporate Joint Venture Two [Member]
Summary of Significant Accounting Policies [Line Items]
Ownership Interest In Joint Ventures	50.00%
Fair Value, Inputs, Level 1 [Member]
Summary of Significant Accounting Policies [Line Items]
Trading Securities, Fair Value Disclosure	$ 5,825,000	$ 5,302,000
Fair Value, Inputs, Level 2 [Member]
Summary of Significant Accounting Policies [Line Items]
Senior Notes	110,985,000
Interest Rate Fair Value Hedge Liability at Fair Value	$ 1,194,000	$ 205,000

It represent that option price range for options outstanding that were Antidilutive.

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