Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases

Leases - Lease expense

		Drybulk Vessel Operations Three Month Period Ended June 30, 2021		Logistics Business Three Month Period Ended June 30, 2021		Total
Lease expense for charter-in contracts	$	19,252	$	1,630	$	20,882
Lease expense for land lease agreements		—		142		142
Lease expense for office lease agreements		—		91		91
Total	$	19,252	$	1,863	$	21,115

		Drybulk Vessel Operations Three Month Period Ended June 30, 2020		Logistics Business Three Month Period Ended June 30, 2020		Total
Lease expense for charter-in contracts	$	24,155	$	1,170	$	25,325
Lease expense for land lease agreements		—		143		143
Lease expense for office lease agreements		—		144		144
Total	$	24,155	$	1,457	$	25,612

		Drybulk Vessel Operations Six Month Period Ended June 30, 2021		Logistics Business Six Month Period Ended June 30, 2021		Total
Lease expense for charter-in contracts	$	39,850	$	3,168	$	43,018
Lease expense for land lease agreements		—		282		282
Lease expense for office lease agreements		—		157		157
Total	$	39,850	$	3,607	$	43,457

		Drybulk Vessel Operations Six Month Period Ended June 30, 2020		Logistics Business Six Month Period Ended June 30, 2020		Total
Lease expense for charter-in contracts	$	49,771	$	2,988	$	52,759
Lease expense for land lease agreements		—		282		282
Lease expense for office lease agreements		—		303		303
Total	$	49,771	$	3,573	$	53,344

Leases - Total amount of lease payments on an undiscounted basis

		Charter-in vessels in operation		Land leases		Office space
June 30, 2022	$	75,986	$	556	$	538
June 30, 2023		58,885		556		419
June 30, 2024		46,554		556		336
June 30, 2025		28,277		556		60
June 30, 2026		18,960		556		60
June 30, 2027 and thereafter		36,569		22,167		23
Total	$	265,231	$	24,947	$	1,436
Operating lease liabilities, including current portion	$	218,574	$	7,976	$	1,246
Discount based on incremental borrowing rate	$	46,657	$	16,971	$	190