Description of Business and Summary of Significant Accounting Policies (Details Textual) - USD ($)	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 29, 2016	May 28, 2015	May 29, 2014
Summary of Significant Accounting Policies [Line Items]
Depreciation	$ 23,893,000	$ 42,085,000	$ 38,368,000	$ 33,329,000
Percentage Of Cash Dividends		110.00%
Restricted Cash and Investments, Total	8,735,000
Senior Notes, Noncurrent	101,429,000	$ 90,286,000
Inventory, Net, Total	2,641,000	$ 4,437,000
Concentration Risk, Labor Subject to Collective Bargaining Arrangements		As of December 29, 2016, 7% of the Companys employees were covered by a collective bargaining agreement, of which 2% are covered by an agreement that will expire in one year. As of December 31, 2015, 8% of the Companys employees were covered by a collective bargaining agreement, of which 75% were covered by an agreement that expired within one year.
Interest Costs Capitalized	32,000	$ 277,000	194,000	256,000
Amortization of Debt Issuance Costs	258,000	303,000	$ 449,000	$ 491,000
Deferred Revenue, Current	$ 25,770,000	$ 28,485,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	456,000	14,000	434,000	469,000
Debt Issuance Costs, Noncurrent, Net	$ 404,000
Increase Decrease In Restricted Cash	$ 9,259,000	$ (12,553,000)	$ 728,000	$ 137,000
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Investment Option Exercise Price	$ 19.74	$ 23.37	$ 18.34	$ 14.40
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Equity Method Investment, Ownership Percentage		50.00%
Investment Option Exercise Price	$ 23.37	$ 31.55	$ 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	$ 93,000
Trading Securities		1,927,000
Fair Value, Inputs, Level 2 [Member]
Summary of Significant Accounting Policies [Line Items]
Interest Rate Fair Value Hedge Asset at Fair Value	$ 16,000	6,000
Senior Notes, Noncurrent		$ 92,424,000