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Description of Business and Summary of Significant Accounting Policies (Details Textual) - USD ($)
 7 Months Ended 12 Months Ended
Dec. 31, 2015
May. 28, 2015
May. 29, 2014
May. 30, 2013
Summary of Significant Accounting Policies [Line Items]        
Depreciation $ 23,893,000 $ 38,368,000 $ 33,329,000 $ 33,469,000
Percentage Of Cash Dividends 110.00%      
Restricted Cash and Investments, Total $ 8,735,000      
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent, Total 50.00%      
Senior Notes $ 101,429,000      
Inventory, Net, Total $ 2,641,000 2,456,000 2,319,000  
Concentration Risk, Labor Subject to Collective Bargaining Arrangements As of December 31, 2015 and May 28, 2015, 8% of the Companys employees were covered by a collective bargaining agreement, of which 75% are covered by an agreement that will expire in one year. As of May 29, 2014, 9% of the Companys employees were covered by a collective bargaining agreement, of which 0% were covered by an agreement that expired within one year.      
Interest Costs Capitalized $ 32,000 194,000 256,000 75,000
Amortization of Financing Costs 258,000 419,000 491,000 $ 348,000
Deferred Revenue, Current $ 25,770,000 $ 18,502,000 $ 16,028,000  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 456,000 434,000 469,000 1,402,000
Minimum [Member]        
Summary of Significant Accounting Policies [Line Items]        
Investment Option Exercise Price $ 19.74 $ 18.34 $ 14.40 $ 12.73
Maximum [Member]        
Summary of Significant Accounting Policies [Line Items]        
Equity Method Investment, Ownership Percentage 50.00%      
Investment Option Exercise Price $ 23.37 $ 23.37 $ 23.37 $ 23.37
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]        
Available-for-sale Securities, Fair Value Disclosure $ 70,000 $ 70,000 $ 70,000  
Fair Value, Inputs, Level 2 [Member]        
Summary of Significant Accounting Policies [Line Items]        
Interest Rate Fair Value Hedge Liability at Fair Value   $ 28,000    
Interest Rate Fair Value Hedge Asset at Fair Value 16,000   $ 56,000  
Senior Notes $ 104,238,000