Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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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.

+ References

No definition available.

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COMMERCIAL REAL ESTATE INVESTMENTS - Mortgage Loans Payable (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Mortgage Loans on Real Estate [Line Items]
Variable interest rate	86.00%		77.00%
Commercial Mortgage Loan
Mortgage Loans on Real Estate [Line Items]
Mortgage Carrying Value		$ 309,686	$ 311,636
Mortgage Principal		$ 312,500	314,865
Commercial Mortgage Loan \| Nevada
Mortgage Loans on Real Estate [Line Items]
Mortgage Carrying Value			2,367
Mortgage Principal			$ 2,365
Interest Rate			3.45%
Commercial Mortgage Loan \| Nevada \| LIBOR
Mortgage Loans on Real Estate [Line Items]
Variable interest rate		2.00%	2.00%
Commercial Mortgage Loan \| Three Thousand One Hundred South Mall
Mortgage Loans on Real Estate [Line Items]
Mortgage Carrying Value		$ 12,294	$ 12,261
Mortgage Principal		$ 12,350	$ 12,350
Interest Rate		4.01%	4.014%
Commercial Mortgage Loan \| Twelve Thousand One Hundred Fifty-One Jefferson
Mortgage Loans on Real Estate [Line Items]
Mortgage Carrying Value		$ 11,019	$ 11,015
Mortgage Principal		$ 11,025	$ 11,025
Interest Rate		3.58%	3.578%
Commercial Mortgage Loan \| Joint Ventures
Mortgage Loans on Real Estate [Line Items]
Mortgage Carrying Value		$ 286,373	$ 285,993
Mortgage Principal		$ 289,125	$ 289,125
Commercial Mortgage Loan \| Joint Ventures \| Minimum
Mortgage Loans on Real Estate [Line Items]
Interest Rate		4.03%	4.03%
Commercial Mortgage Loan \| Joint Ventures \| Maximum
Mortgage Loans on Real Estate [Line Items]
Interest Rate		4.61%	4.61%