Number of vessels being upgraded

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of lease payments to be received by lessor for operating lease.

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Amount of lease payments to be received by lessor in fifth fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in fourth year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in next fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor after fifth fiscal year following latest statement of financial position date for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in third fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in second fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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OPERATING LEASES (Details) $ in Thousands	Dec. 31, 2019 vessel	Dec. 31, 2019	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Minimum future revenues to be received under non-cancelable operating leases [Abstract]
2020			$ 310,083
2021			272,961
2022			248,508
2023			234,689
2024			168,301
Thereafter			164,818
Total minimum lease revenues			1,399,360
Number of vessels committed to vessel upgrades	4	2		4
Assets Leased to Others
Minimum future revenues to be received under non-cancelable operating leases [Abstract]
Cost			2,100,533	$ 2,336,269
Accumulated depreciation			315,934	309,135
Total			$ 1,784,599	$ 2,027,134