XML 35 R25.htm IDEA: XBRL DOCUMENT v3.19.2
General - Additional information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 27, 2019
Jun. 28, 2018
Jun. 27, 2019
Jun. 28, 2018
Dec. 27, 2018
Summary of Significant Accounting Policies [Line Items]          
Depreciation $ 18,284,000 $ 14,445,000 $ 34,239,000 $ 28,481,000  
Percentage Of Cash Dividends     110.00%    
Deferred Revenue 35,135,000   $ 35,135,000   $ 37,048,000
Deferred Revenue, Revenue Recognized 4,522,000   14,705,000    
Remaining Performance Obligation Related to Advanced Ticket Sales 4,462,000   4,462,000    
Other Deferred Compensation Arrangements, Liability, Classified, Noncurrent 47,435,000   $ 47,435,000   56,908,000
Redeemed Revenue From Advanced Tickets Sales Occurred     2 years    
Hotels or Resorts [Member] | Other Accrued Liabilities [Member]          
Summary of Significant Accounting Policies [Line Items]          
Remaining Performance Obligation Related to Hotels Gift Cards 2,339,000   $ 2,339,000    
Fair Value, Inputs, Level 1 [Member]          
Summary of Significant Accounting Policies [Line Items]          
Trading Securities, Fair Value Disclosure 6,028,000   6,028,000   5,302,000
Fair Value, Inputs, Level 2 [Member]          
Summary of Significant Accounting Policies [Line Items]          
Interest Rate Fair Value Hedge Liability at Fair Value $ 1,311,000   $ 1,311,000   $ 205,000