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Derivative Instruments and Hedging Activities (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) derivative	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) derivative	Jun. 30, 2020 USD ($)	Apr. 14, 2021 USD ($)	Dec. 31, 2020 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Number of interest rate swap agreements | derivative	4		4
Interest rate cap/swap agreements	$ 2,739	$ 1,745	$ 5,433	$ (4,650)
Swaps
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Number of interest rate swap agreements | derivative	4		4
Swaps | Santa Monica Place
Derivatives, Fair Value [Line Items]
Outstanding balance to fixed rate	$ 300,000		$ 300,000		$ 300,000
Level 2 measurement | Cap
Derivatives, Fair Value [Line Items]
Notional Amount	$ 300,000		$ 300,000
LIBOR Rate	4.00%		4.00%
Fair Value	$ 0		$ 0			$ 0
Level 2 measurement | Swaps
Derivatives, Fair Value [Line Items]
Notional Amount	$ 400,000		$ 400,000
LIBOR Rate	2.85%		2.85%
Fair Value	$ (2,775)		$ (2,775)			$ (8,208)

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
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Nominal or face amount used to calculate payment on derivative.

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Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

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Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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