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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Drydocking and Fixed Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Deferred drydocking costs |  |  |
Amortization expense for drydocking | $ 7,832 | $ 5,055 | $ 5,598
Fixed assets, net |  |  |
Depreciation and amortization | $ 60,190 | 56,231 | 65,168
Minimum |  |  |
Deferred drydocking costs |  |  |
Period for which vessels are required to be drydocked for major repairs and maintenance | 30 months |  |
Maximum |  |  |
Deferred drydocking costs |  |  |
Period for which vessels are required to be drydocked for major repairs and maintenance | 60 months |  |
Furniture and fixtures |  |  |
Fixed assets, net |  |  |
Useful lives | 5 years |  |
Vessel equipment | Minimum |  |  |
Fixed assets, net |  |  |
Useful lives | 2 years |  |
Vessel equipment | Maximum |  |  |
Fixed assets, net |  |  |
Useful lives | 15 years |  |
Computer equipment |  |  |
Fixed assets, net |  |  |
Useful lives | 3 years |  |
Detail of Fixed Assets, Excluding Vessels |  |  |
Fixed assets, net |  |  |
Depreciation and amortization | $ 2,266 | $ 1,759 | $ 1,562

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