GUARANTEES AND COLLATERAL (Collateral and Restricted Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash	$ 6,115	$ 5,635
Bonds Available-for-Sale		85,347
Investments in partnerships	202,146	8,779
Total Assets Pledged	208,261	99,761
Interest rate swap [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash	2,151
Total Assets Pledged	2,151
Debt and derivatives \| SAWHF [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash	1,364	1,340
Investments in partnerships	7,499	8,779
Total Assets Pledged	$ 8,863	$ 10,119
Ownership interest (as a percent)	11.85%	11.85%
Debt and derivatives TRSs [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash		$ 4,287
Bonds Available-for-Sale		85,347
Total Assets Pledged		89,634
Other, Pledged or Restricted [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash	$ 8	8
Total Assets Pledged	8	$ 8
Revolving Credit Facility [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash	2,592
Investments in partnerships	194,647
Total Assets Pledged	$ 197,239

Carrying amount as of the balance sheet date of assets that have been pledged as collateral.

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- Definition

The amount of restricted investment in equity method investee and investment in and advance to affiliate

+ References

No definition available.

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- Definition

Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 1A
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

+ References

No definition available.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(2))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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