COMMITMENTS AND CONTINGENT LIABILITIES (Details) $ in Thousands	6 Months Ended
Jun. 30, 2020 USD ($) carrier	Dec. 31, 2019 USD ($)
Commitments and Contingencies [Line Items]
Book value of assets pledged under ship mortgages	$ 1,715,000	$ 1,753,000
Long-term debt		613,551
Book value of assets with finance lease liabilities	1,268,000	1,278,000
Equity Accounted Subsidiaries [Member]
Commitments and Contingencies [Line Items]
Long-term debt	597,898	621,907
Property not subject to direct financing leases [Member]
Commitments and Contingencies [Line Items]
Book value of assets pledged under ship mortgages	1,269,000	1,352,000
Property subject to direct financing leases [Member]
Commitments and Contingencies [Line Items]
Book value of assets pledged under ship mortgages	446,000	401,000
Vessels under finance lease, net
Commitments and Contingencies [Line Items]
Book value of assets with finance lease liabilities	717,000	714,000
Investments in direct financing leases
Commitments and Contingencies [Line Items]
Book value of assets with finance lease liabilities	551,000	563,000
Debt for Acquired Equipment [Member]
Commitments and Contingencies [Line Items]
Long-term Line of Credit	1,609,300
Debt for Acquired Equipment [Member] \| Equity Accounted Subsidiaries [Member]
Commitments and Contingencies [Line Items]
Long-term debt	597,900
Debt for Acquired Equipment [Member] \| Company and Subsidiaries [Member]
Commitments and Contingencies [Line Items]
Long-term Line of Credit	2,207,200	2,249,100
Installation of scrubbers [Member]
Commitments and Contingencies [Line Items]
Number of container vessels with amended charter terms	$ 14,100	33,400
number of vessels being upgraded \| carrier	9,000
Installation of BWTS [Member]
Commitments and Contingencies [Line Items]
Number of container vessels with amended charter terms	$ 6,800	$ 9,200
number of vessels being upgraded \| carrier	17,000

Book value of assets with finance lease liabilities

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- Definition

Number of vessels being upgraded

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position.

+ References

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