Intangible Assets, Goodwill and Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Deferred marine charges, net	[1]	$ 19,930	$ 20,714
Long-term contract assets	[2]	0	12,065
Unamortized debt issuance costs on Revolving Loan		4,736	5,842
Other deferred costs		13,593	7,226
OTHER ASSETS, net of amortization		$ 38,259	$ 45,847

[1] See discussion of deferred charges on marine transportation assets in the Summary of Accounting Policies (Note 2).

[2] See Revenue Recognition (Note 3) for discussion on the circumstances that result in the recognition of contract assets.