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- Definition

Notes and Bond Payable, Net

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- Definition

Notes and Bond Payable Principal Outstanding

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- Definition

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

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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.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

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

+ 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

Amount, after accumulated amortization, of debt premium.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Gross amount of debt extinguished.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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NOTES AND BONDS PAYABLE (Schedule of Long-term Debt Instruments) (Details) - USD ($) $ in Thousands			12 Months Ended
	Nov. 01, 2019	Jul. 19, 2019	Dec. 31, 2019	Jan. 11, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total Notes and Bond Payable principal outstanding			$ 678,080		$ 663,318
Net Premium/Discount on Notes and Bond Payable			783		198
Deferred financing costs, net			(5,200)		(8,044)
Total notes and bonds payable, net			673,663		655,472
Debt, outstanding amount			678,080
424 Bedford
Debt Instrument [Line Items]
Debt, outstanding amount				$ 23,700
125 John Carpenter Mortgage Loan
Debt Instrument [Line Items]
Extinguishment of debt	$ 53,200
Mortgages \| Richardson Portfolio Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 36,000		36,000
Interest rate, effective percentage			4.19%
Debt, outstanding amount			$ 36,000
Mortgages \| Richardson Portfolio Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			2.50%
Mortgages \| Park Centre Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 21,970		8,404
Interest rate, effective percentage			3.44%
Mortgages \| Park Centre Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Mortgages \| Burbank Collection Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 0		10,716
Extinguishment of debt		$ 10,600
Mortgages \| 1180 Raymond Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 30,250		30,637
Interest rate, effective percentage			3.96%
Mortgages \| 1180 Raymond Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			2.25%
Mortgages \| 1180 Raymond Bond Payable
Debt Instrument [Line Items]
Bonds payable			$ 6,080		6,280
Contractual interest rate, percentage			6.50%
Interest rate, effective percentage			6.50%
Mortgages \| 424 Bedford Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 0		23,710
Mortgages \| KBS SOR (BVI) Holdings, Ltd. Series A Debentures
Debt Instrument [Line Items]
Notes payable			$ 224,746		259,516
Contractual interest rate, percentage			4.25%
Interest rate, effective percentage			4.25%
Mortgages \| Crown Pointe Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 51,171		51,171
Interest rate, effective percentage			4.29%
Mortgages \| Crown Pointe Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			2.60%
Mortgages \| 125 John Carpenter Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 0		53,204
Extinguishment of debt	$ 53,200
Mortgages \| City Tower Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 89,000		89,000
Interest rate, effective percentage			3.24%
Mortgages \| City Tower Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			1.55%
Mortgages \| Marquette Plaza Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 53,408		50,800
Interest rate, effective percentage			3.24%
Mortgages \| Marquette Plaza Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			1.55%
Mortgages \| Eight & Nine Corporate Centre Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 43,880		43,880
Interest rate, effective percentage			3.29%
Mortgages \| Eight & Nine Corporate Centre Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			1.60%
Mortgages \| Georgia 400 Center Mortgage Loan
Debt Instrument [Line Items]
Notes payable			$ 59,690		0
Interest rate, effective percentage			3.24%
Mortgages \| Georgia 400 Center Mortgage Loan \| One-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			1.55%
Mortgages \| PORT Mortgage Loan 1
Debt Instrument [Line Items]
Notes payable			$ 51,362		0
Contractual interest rate, percentage			4.74%
Interest rate, effective percentage			4.74%
Mortgages \| PORT Mortgage Loan 2
Debt Instrument [Line Items]
Notes payable			$ 10,523		$ 0
Contractual interest rate, percentage			4.72%
Interest rate, effective percentage			4.72%