Revenue Recognition (Details Textual) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 28, 2018	Jun. 28, 2018	Dec. 29, 2017	Dec. 28, 2017
Deferred Revenue	$ 31,826,000	$ 31,826,000	$ 36,007,000
Contract Revenue Reclassified From Deferred Revenue	4,788,000	14,989,000
Other Deferred Compensation Arrangements, Liability, Classified, Noncurrent	59,285,000	$ 59,285,000		$ 56,662,000
Redeemed Revenue from Advanced Tickets Sales Occured		1 year 3 months 18 days
Advanced Sale of Tickets [Member]
Revenue, Remaining Performance Obligation	4,513,000	$ 4,513,000
Revenue Performance Obligation [Member]
Other Deferred Compensation Arrangements, Liability, Classified, Noncurrent	79,000	79,000
Hotels or Resorts [Member]
Revenue, Remaining Performance Obligation	$ 198,000	$ 198,000
Revenue Reward Redemption Occured With in Period		2 years