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Leases (Tables)
12 Months Ended
Dec. 31, 2021
Leases  
Leases
  Charter-in vessels in operation 
December 31, 2022 $ 30,603
December 31, 2023   30,558
December 31, 2024   30,508
December 31, 2025   30,368
December 31, 2026   30,257
December 31, 2027 and thereafter   166,021
Total $ 318,315
Operating lease liabilities, including current portion $ 243,804
Discount based on incremental borrowing rate $ 74,511