Fair Value of Financial Instruments - Fair Value (Table) (Details) - USD ($)
$ in Thousands |
Jun. 30, 2020 |
Dec. 31, 2019 |
Jun. 30, 2019 |
| Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |
|
|
|
| Cash and cash equivalents - Book Value |
$ 54,014
|
$ 77,991
|
$ 95,489
|
| Cash and cash equivalents - Fair Value |
54,014
|
77,991
|
|
| Restricted cash - Book Value |
1,058
|
736
|
$ 9,732
|
| Restricted cash - Fair Value |
1,058
|
736
|
|
| Investments in available-for-sale-securities - Book Value |
153
|
189
|
|
| Investments in available-for-sale-securities - Fair Value |
153
|
189
|
|
| Loan receivable from affiliate companies - Book Value |
0
|
24,495
|
|
| Loan receivable from affiliate companies - Fair Value |
0
|
24,495
|
|
| Long-term receivable from affiliate companies - Book Value |
0
|
5,328
|
|
| Long-term receivable from affiliate companies - Fair Value |
0
|
5,328
|
|
| Senior and ship mortgage notes, net - Book Value |
(1,152,942)
|
(1,170,679)
|
|
| Senior and ship mortgage notes, net - Fair Value |
(780,814)
|
(875,228)
|
|
| Long-term debt, including current portion - Book Value |
(309,615)
|
(262,030)
|
|
| Long-term debt, including current portion - Fair Value |
(312,667)
|
(264,498)
|
|
| Loan payable to affiliate companies, including current portion - Book Value |
(129,224)
|
(130,538)
|
|
| Loan payable to affiliate companies, including current portion - Fair Value |
(129,224)
|
(130,538)
|
|
| Long-term payable to affiliate companies - Book Value |
0
|
(5,000)
|
|
| Long-term payable to affiliate companies - Fair Value |
$ 0
|
$ (5,000)
|
|