Details Of Certain Accounts - Other Assets, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Note receivable, net	$ 3,129	$ 2,827
Prepaids	8,559	6,418
Deferred dry dock costs, net	16,100	14,766
Deferred costs	50,146	30,738
Deferred financing costs, net	3,052	3,745
Charter fee deposit	12,544	12,544
Other	2,121	1,511
Total other assets, net	$ 95,651	72,549
Noncurrent note receivable, interest rate (as a percent)	5.00%
Redeemable convertible bonds, face amount	$ 4,300
Allowance for note receivable	$ 1,200	$ 4,200