Schedule III - Real Estate and Accumulated Depreciation (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) a Unit lot	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 3,034.5
Initial Cost
Land	1,339.3
Building & Improvements	4,156.7
Costs Capitalized Subsequent to Acquisition
Improvements	494.2
Gross Balance at December 31, 2020
Land	1,319.2
Building & Improvements	4,456.1
Total	5,775.3	$ 5,567.3	$ 5,207.7	$ 5,430.5
Accumulated Depreciation	(619.6)	$ (564.0)	$ (551.8)	$ (466.8)
Aggregate tax basis of all properties	4,844.5
Southern California | Commercial | Office, Constructed 1955, 1981, 1982
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	35.0
Initial Cost
Land	11.2
Building & Improvements	18.5
Costs Capitalized Subsequent to Acquisition
Improvements	34.8
Gross Balance at December 31, 2020
Land	11.5
Building & Improvements	54.3
Total	65.8
Accumulated Depreciation	$ (10.3)
Depreciable Life in Years	39 years
Southern California | Commercial | Retail, Constructed 1985
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 27.0
Initial Cost
Land	9.1
Building & Improvements	14.0
Costs Capitalized Subsequent to Acquisition
Improvements	13.8
Gross Balance at December 31, 2020
Land	9.1
Building & Improvements	27.8
Total	36.9
Accumulated Depreciation	$ (4.9)
Depreciable Life in Years	39 years
Southern California | Commercial | Office, Constructed 1982
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 22.4
Initial Cost
Land	31.8
Building & Improvements	60.6
Costs Capitalized Subsequent to Acquisition
Improvements	22.1
Gross Balance at December 31, 2020
Land	31.8
Building & Improvements	82.6
Total	114.4
Accumulated Depreciation	$ (18.5)
Depreciable Life in Years	39 years
Southern California | Commercial | Office, Constructed 1968
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 28.8
Initial Cost
Land	11.6
Building & Improvements	36.5
Costs Capitalized Subsequent to Acquisition
Improvements	5.3
Gross Balance at December 31, 2020
Land	11.6
Building & Improvements	41.8
Total	53.4
Accumulated Depreciation	$ (10.3)
Depreciable Life in Years	39 years
Southern California | Commercial | Office 2, Constructed 1982
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 35.0
Initial Cost
Land	20.7
Building & Improvements	47.9
Costs Capitalized Subsequent to Acquisition
Improvements	26.1
Gross Balance at December 31, 2020
Land	20.7
Building & Improvements	53.9
Total	74.6
Accumulated Depreciation	$ (12.0)
Depreciable Life in Years	39 years
Southern California | Multifamily | 460-Unit Multifamily Building, Constructed 1988
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 46.7
Initial Cost
Land	13.2
Building & Improvements	53.0
Costs Capitalized Subsequent to Acquisition
Improvements	7.1
Gross Balance at December 31, 2020
Land	13.2
Building & Improvements	60.1
Total	73.3
Accumulated Depreciation	$ (14.9)
Depreciable Life in Years	39 years
Number of units | Unit	460
Southern California | Multifamily | 386-Unit Multifamily Building, Constructed 2002
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 66.0
Initial Cost
Land	0.0
Building & Improvements	81.4
Costs Capitalized Subsequent to Acquisition
Improvements	9.4
Gross Balance at December 31, 2020
Land	0.0
Building & Improvements	90.8
Total	90.8
Accumulated Depreciation	$ (18.0)
Depreciable Life in Years	39 years
Number of units | Unit	386
Southern California | Multifamily | Land 1 Acquired 2018
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	0.6
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	27.9
Building & Improvements	0.0
Total	27.9
Accumulated Depreciation	$ 0.0
Depreciable Life in Years	39 years
Southern California | Development | Multifamily Acquired 2015
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	6.0
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	4.0
Gross Balance at December 31, 2020
Land	6.0
Building & Improvements	4.0
Total	10.0
Accumulated Depreciation	0.0
Mountain West | Commercial | Retail, Constructed 1981
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1.1
Initial Cost
Land	0.5
Building & Improvements	1.2
Costs Capitalized Subsequent to Acquisition
Improvements	0.4
Gross Balance at December 31, 2020
Land	0.5
Building & Improvements	1.7
Total	2.2
Accumulated Depreciation	$ (0.4)
Depreciable Life in Years	39 years
Mountain West | Commercial | Retail, Constructed 1980, 1983
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 3.5
Initial Cost
Land	2.6
Building & Improvements	5.6
Costs Capitalized Subsequent to Acquisition
Improvements	1.2
Gross Balance at December 31, 2020
Land	2.6
Building & Improvements	6.9
Total	9.5
Accumulated Depreciation	$ (1.5)
Depreciable Life in Years	39 years
Mountain West | Commercial | Retail, Constructed 1961
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 6.0
Initial Cost
Land	2.0
Building & Improvements	9.5
Costs Capitalized Subsequent to Acquisition
Improvements	4.3
Gross Balance at December 31, 2020
Land	2.0
Building & Improvements	13.8
Total	15.8
Accumulated Depreciation	$ (1.8)
Depreciable Life in Years	39 years
Mountain West | Multifamily | 366-unit Apartment building, Constructed 2000
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 50.4
Initial Cost
Land	9.1
Building & Improvements	36.3
Costs Capitalized Subsequent to Acquisition
Improvements	13.8
Gross Balance at December 31, 2020
Land	9.1
Building & Improvements	50.1
Total	59.2
Accumulated Depreciation	$ (20.9)
Depreciable Life in Years	39 years
Number of units | Unit	366
Mountain West | Multifamily | 204-Unit Multifamily Building, Constructed 1999
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 14.3
Initial Cost
Land	2.0
Building & Improvements	17.6
Costs Capitalized Subsequent to Acquisition
Improvements	4.2
Gross Balance at December 31, 2020
Land	1.9
Building & Improvements	21.8
Total	23.7
Accumulated Depreciation	$ (5.3)
Depreciable Life in Years	39 years
Number of units | Unit	204
Mountain West | Multifamily | 168-Unit Multifamily Building, Constructed 1992
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 10.9
Initial Cost
Land	1.8
Building & Improvements	13.1
Costs Capitalized Subsequent to Acquisition
Improvements	4.0
Gross Balance at December 31, 2020
Land	1.8
Building & Improvements	17.0
Total	18.8
Accumulated Depreciation	$ (4.3)
Depreciable Life in Years	39 years
Number of units | Unit	168
Mountain West | Multifamily | 300-Unit Multifamily Building, Constructed 1995
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 39.0
Initial Cost
Land	4.8
Building & Improvements	29.2
Costs Capitalized Subsequent to Acquisition
Improvements	6.6
Gross Balance at December 31, 2020
Land	4.8
Building & Improvements	35.8
Total	40.6
Accumulated Depreciation	$ (6.5)
Depreciable Life in Years	39 years
Number of units | Unit	300
Mountain West | Multifamily | 200-Unit Multifamily Building, Constructed 2012
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 20.6
Initial Cost
Land	1.4
Building & Improvements	25.9
Costs Capitalized Subsequent to Acquisition
Improvements	1.2
Gross Balance at December 31, 2020
Land	1.4
Building & Improvements	27.1
Total	28.5
Accumulated Depreciation	$ (4.0)
Depreciable Life in Years	39 years
Number of units | Unit	200
Mountain West | Multifamily | 174-Unit Multifamily Building
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	0.2
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	34.3
Building & Improvements	0.0
Total	34.3
Accumulated Depreciation	$ 0.0
Depreciable Life in Years	39 years
Number of units | Unit	172
Mountain West | Multifamily | 88-Unit Multifamily Building Constructed 1988
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 8.6
Initial Cost
Land	2.6
Building & Improvements	10.4
Costs Capitalized Subsequent to Acquisition
Improvements	1.8
Gross Balance at December 31, 2020
Land	2.6
Building & Improvements	12.2
Total	14.8
Accumulated Depreciation	$ (2.2)
Depreciable Life in Years	39 years
Number of units | Unit	88
Mountain West | Multifamily | 492-Unit Multifamily Building Constructed 1985
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 59.1
Initial Cost
Land	15.8
Building & Improvements	63.2
Costs Capitalized Subsequent to Acquisition
Improvements	7.9
Gross Balance at December 31, 2020
Land	15.9
Building & Improvements	71.1
Total	87.0
Accumulated Depreciation	$ (11.3)
Depreciable Life in Years	39 years
Number of units | Unit	492
Mountain West | Multifamily | 66 Unit Multifamily Building Constructed 2021
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 8.0
Initial Cost
Land	0.8
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	0.7
Building & Improvements	9.2
Total	9.9
Accumulated Depreciation	$ (0.5)
Depreciable Life in Years	39 years
Number of units | Unit	66
Mountain West | Multifamily | Land 3 Acquired 2018
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 10.2
Initial Cost
Land	2.1
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	2.0
Building & Improvements	21.0
Total	23.0
Accumulated Depreciation	$ (0.2)
Depreciable Life in Years	39 years
Mountain West | Multifamily | 293-Unit Multifamily Building Constructed 1995
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 19.9
Initial Cost
Land	7.2
Building & Improvements	28.8
Costs Capitalized Subsequent to Acquisition
Improvements	1.1
Gross Balance at December 31, 2020
Land	7.2
Building & Improvements	29.9
Total	37.1
Accumulated Depreciation	$ (3.8)
Depreciable Life in Years	39 years
Number of units | Unit	293
Mountain West | Multifamily | 188-Unit Multifamily Building Constructed 1985
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 13.5
Initial Cost
Land	4.9
Building & Improvements	19.7
Costs Capitalized Subsequent to Acquisition
Improvements	7.9
Gross Balance at December 31, 2020
Land	4.9
Building & Improvements	27.5
Total	32.4
Accumulated Depreciation	$ (4.7)
Depreciable Life in Years	39 years
Number of units | Unit	188
Mountain West | Multifamily | Land 4 Acquired 2018
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 32.3
Initial Cost
Land	5.7
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.4
Gross Balance at December 31, 2020
Land	1.9
Building & Improvements	38.1
Total	40.0
Accumulated Depreciation	$ (2.2)
Depreciable Life in Years	39 years
Number of units | Unit	120
Mountain West | Multifamily | Land 1 Acquired 2019
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 62.2
Initial Cost
Land	4.0
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	6.9
Gross Balance at December 31, 2020
Land	2.7
Building & Improvements	55.3
Total	58.0
Accumulated Depreciation	$ (3.8)
Depreciable Life in Years	39 years
Number of units | Unit	277
Mountain West | Multifamily | Land 2 Acquired 2019
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	0.0
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	0.0
Building & Improvements	2.3
Total	2.3
Accumulated Depreciation	$ (0.1)
Depreciable Life in Years	39 years
Number of units | Unit	10
Mountain West | Multifamily | 360-Unit Multifamily Building Constructed 2015
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 70.0
Initial Cost
Land	16.4
Building & Improvements	65.7
Costs Capitalized Subsequent to Acquisition
Improvements	1.9
Gross Balance at December 31, 2020
Land	16.4
Building & Improvements	67.6
Total	84.0
Accumulated Depreciation	$ (5.4)
Depreciable Life in Years	39 years
Number of units | Unit	360
Mountain West | Multifamily | 260-Unit Multifamily Building Constructed 2014
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 39.4
Initial Cost
Land	13.4
Building & Improvements	53.6
Costs Capitalized Subsequent to Acquisition
Improvements	2.9
Gross Balance at December 31, 2020
Land	13.4
Building & Improvements	56.6
Total	70.0
Accumulated Depreciation	$ (3.4)
Depreciable Life in Years	39 years
Number of units | Unit	260
Mountain West | Multifamily | 280 Multifamily Building Constructed 2019
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 39.6
Initial Cost
Land	13.3
Building & Improvements	53.2
Costs Capitalized Subsequent to Acquisition
Improvements	0.2
Gross Balance at December 31, 2020
Land	13.3
Building & Improvements	53.4
Total	66.7
Accumulated Depreciation	$ (2.3)
Depreciable Life in Years	39 years
Number of units | Unit	280
Mountain West | Multifamily | Land 1 Acquired 2021
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	0.0
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	1.0
Building & Improvements	0.0
Total	1.0
Accumulated Depreciation	$ 0.0
Depreciable Life in Years	39 years
Mountain West | Multifamily | 344-Unit Multifamily Building Constructed 1985
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 39.2
Initial Cost
Land	13.0
Building & Improvements	52.1
Costs Capitalized Subsequent to Acquisition
Improvements	4.0
Gross Balance at December 31, 2020
Land	13.0
Building & Improvements	56.1
Total	69.1
Accumulated Depreciation	$ (2.3)
Depreciable Life in Years	39 years
Number of units | Unit	344
Mountain West | Multifamily | Land 2 Acquired 2021
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 16.6
Initial Cost
Land	4.6
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	36.4
Building & Improvements	0.0
Total	36.4
Accumulated Depreciation	$ 0.0
Depreciable Life in Years	39 years
Mountain West | Multifamily | 240-Unit Multifamily Building Constructed 2020
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 45.1
Initial Cost
Land	11.1
Building & Improvements	44.3
Costs Capitalized Subsequent to Acquisition
Improvements	1.0
Gross Balance at December 31, 2020
Land	11.1
Building & Improvements	45.8
Total	56.9
Accumulated Depreciation	$ (1.8)
Depreciable Life in Years	39 years
Number of units | Unit	240
Mountain West | Multifamily | 160-Unit Multifamily Building Constructed 1990 And 1998
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 13.9
Initial Cost
Land	4.5
Building & Improvements	17.9
Costs Capitalized Subsequent to Acquisition
Improvements	0.3
Gross Balance at December 31, 2020
Land	4.5
Building & Improvements	18.3
Total	22.8
Accumulated Depreciation	$ (0.7)
Depreciable Life in Years	39 years
Number of units | Unit	160
Mountain West | Multifamily | 332-Unit Multifamily Building Constructed 2002
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 76.2
Initial Cost
Land	26.7
Building & Improvements	106.9
Costs Capitalized Subsequent to Acquisition
Improvements	2.2
Gross Balance at December 31, 2020
Land	26.7
Building & Improvements	109.0
Total	135.7
Accumulated Depreciation	$ (3.6)
Depreciable Life in Years	39 years
Number of units | Unit	332
Mountain West | Multifamily | 528-Unit Multifamily Building Constructed 1989 and 1990
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 102.0
Initial Cost
Land	31.1
Building & Improvements	124.4
Costs Capitalized Subsequent to Acquisition
Improvements	2.9
Gross Balance at December 31, 2020
Land	31.1
Building & Improvements	127.3
Total	158.4
Accumulated Depreciation	$ (3.4)
Depreciable Life in Years	39 years
Number of units | Unit	528
Mountain West | Multifamily | Land 3 Acquired 2021
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7.8
Initial Cost
Land	8.0
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	22.4
Building & Improvements	0.0
Total	22.4
Accumulated Depreciation	$ 0.0
Depreciable Life in Years	39 years
Mountain West | Multifamily | 350-Unit Multifamily Building Constructed 1985
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 64.9
Initial Cost
Land	33.2
Building & Improvements	132.6
Costs Capitalized Subsequent to Acquisition
Improvements	0.9
Gross Balance at December 31, 2020
Land	33.2
Building & Improvements	133.5
Total	166.7
Accumulated Depreciation	$ (2.3)
Depreciable Life in Years	39 years
Number of units | Unit	350
Mountain West | Multifamily | 404-Unit Multifamily Building Constructed 1996
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 61.6
Initial Cost
Land	29.6
Building & Improvements	118.3
Costs Capitalized Subsequent to Acquisition
Improvements	0.4
Gross Balance at December 31, 2020
Land	29.6
Building & Improvements	118.7
Total	148.3
Accumulated Depreciation	$ (2.0)
Depreciable Life in Years	39 years
Number of units | Unit	404
Mountain West | Multifamily | 356-Unit Multifamily Building Constructed 1995 And 2008
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 41.0
Initial Cost
Land	20.8
Building & Improvements	83.1
Costs Capitalized Subsequent to Acquisition
Improvements	1.0
Gross Balance at December 31, 2020
Land	20.8
Building & Improvements	84.1
Total	104.9
Accumulated Depreciation	$ (1.5)
Depreciable Life in Years	39 years
Number of units | Unit	356
Mountain West | Multifamily | 260-Unit Multifamily Building Constructed 2013
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 34.0
Initial Cost
Land	15.7
Building & Improvements	62.6
Costs Capitalized Subsequent to Acquisition
Improvements	0.3
Gross Balance at December 31, 2020
Land	15.7
Building & Improvements	62.9
Total	78.6
Accumulated Depreciation	$ (0.6)
Depreciable Life in Years	39 years
Number of units | Unit	260
United Kingdom | Commercial | Commercial Portfolio 1, Acquired 2014
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	16.6
Building & Improvements	3.9
Costs Capitalized Subsequent to Acquisition
Improvements	5.6
Gross Balance at December 31, 2020
Land	1.2
Building & Improvements	15.5
Total	16.7
Accumulated Depreciation	$ (3.3)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Commercial Portfolio 2, Acquired 2014
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 30.2
Initial Cost
Land	47.9
Building & Improvements	249.0
Costs Capitalized Subsequent to Acquisition
Improvements	10.9
Gross Balance at December 31, 2020
Land	28.5
Building & Improvements	182.6
Total	211.1
Accumulated Depreciation	$ (46.9)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Office, Constructed 2003
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 173.6
Initial Cost
Land	85.3
Building & Improvements	232.0
Costs Capitalized Subsequent to Acquisition
Improvements	26.6
Gross Balance at December 31, 2020
Land	74.1
Building & Improvements	204.0
Total	278.1
Accumulated Depreciation	$ (55.0)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Retail, Constructed 2010
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	6.2
Building & Improvements	109.5
Costs Capitalized Subsequent to Acquisition
Improvements	7.3
Gross Balance at December 31, 2020
Land	4.5
Building & Improvements	87.2
Total	91.7
Accumulated Depreciation	$ (19.0)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Commercial Portfolio 1, Acquired 2015
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 165.8
Initial Cost
Land	86.7
Building & Improvements	159.7
Costs Capitalized Subsequent to Acquisition
Improvements	7.8
Gross Balance at December 31, 2020
Land	58.7
Building & Improvements	108.6
Total	167.3
Accumulated Depreciation	$ (21.5)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Office Portfolio, Acquired 2015
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	19.0
Building & Improvements	41.2
Costs Capitalized Subsequent to Acquisition
Improvements	17.6
Gross Balance at December 31, 2020
Land	20.0
Building & Improvements	41.4
Total	61.4
Accumulated Depreciation	$ (5.6)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Office Portfolio, Acquired 2016
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 61.4
Initial Cost
Land	32.1
Building & Improvements	70.4
Costs Capitalized Subsequent to Acquisition
Improvements	5.9
Gross Balance at December 31, 2020
Land	26.8
Building & Improvements	64.6
Total	91.4
Accumulated Depreciation	$ (11.3)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Office Constructed 2001 And 2007
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 38.5
Initial Cost
Land	25.3
Building & Improvements	54.8
Costs Capitalized Subsequent to Acquisition
Improvements	0.5
Gross Balance at December 31, 2020
Land	22.7
Building & Improvements	49.4
Total	72.1
Accumulated Depreciation	$ (1.3)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Office Constructed 2004
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 49.8
Initial Cost
Land	25.5
Building & Improvements	74.1
Costs Capitalized Subsequent to Acquisition
Improvements	0.8
Gross Balance at December 31, 2020
Land	23.0
Building & Improvements	67.4
Total	90.4
Accumulated Depreciation	$ (1.7)
Depreciable Life in Years	39 years
United Kingdom | Commercial | Office Constructed 2019
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 118.1
Initial Cost
Land	71.2
Building & Improvements	177.9
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	62.0
Building & Improvements	155.0
Total	217.0
Accumulated Depreciation	$ (5.8)
Depreciable Life in Years	39 years
United Kingdom | Development | Land Acquired 2018
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances
Initial Cost
Land	4.2
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.1
Gross Balance at December 31, 2020
Land	3.6
Building & Improvements	0.4
Total	4.0
Accumulated Depreciation	0.0
Ireland | Commercial | Office, Constructed 2003
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	71.6
Initial Cost
Land	8.2
Building & Improvements	102.6
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	6.4
Building & Improvements	80.7
Total	87.1
Accumulated Depreciation	$ (17.1)
Depreciable Life in Years	39 years
Ireland | Commercial | Retail, Constructed 1966 And 2005
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 80.8
Initial Cost
Land	59.8
Building & Improvements	83.1
Costs Capitalized Subsequent to Acquisition
Improvements	24.3
Gross Balance at December 31, 2020
Land	46.9
Building & Improvements	88.7
Total	135.6
Accumulated Depreciation	$ (15.8)
Depreciable Life in Years	39 years
Ireland | Commercial | Office, Constructed 1980
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 61.6
Initial Cost
Land	20.4
Building & Improvements	73.8
Costs Capitalized Subsequent to Acquisition
Improvements	5.4
Gross Balance at December 31, 2020
Land	16.1
Building & Improvements	63.4
Total	79.5
Accumulated Depreciation	$ (14.9)
Depreciable Life in Years	39 years
Ireland | Commercial | Office Building, Constructed 2007
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	2.0
Building & Improvements	11.9
Costs Capitalized Subsequent to Acquisition
Improvements	0.2
Gross Balance at December 31, 2020
Land	1.9
Building & Improvements	11.7
Total	13.6
Accumulated Depreciation	$ (2.0)
Depreciable Life in Years	39 years
Ireland | Commercial | Office, Constructed 2009, Acquired 2016
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 37.5
Initial Cost
Land	4.2
Building & Improvements	64.0
Costs Capitalized Subsequent to Acquisition
Improvements	2.0
Gross Balance at December 31, 2020
Land	3.9
Building & Improvements	61.5
Total	65.4
Accumulated Depreciation	$ (10.2)
Depreciable Life in Years	39 years
Ireland | Commercial | Office, Constructed 1841
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 15.9
Initial Cost
Land	4.9
Building & Improvements	18.5
Costs Capitalized Subsequent to Acquisition
Improvements	8.0
Gross Balance at December 31, 2020
Land	4.4
Building & Improvements	24.8
Total	29.2
Accumulated Depreciation	$ (2.7)
Depreciable Life in Years	39 years
Ireland | Commercial | Office, Constructed 1840 and 2000
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 52.0
Initial Cost
Land	11.0
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	2.0
Gross Balance at December 31, 2020
Land	10.1
Building & Improvements	52.6
Total	62.7
Accumulated Depreciation	$ (1.1)
Depreciable Life in Years	39 years
Ireland | Commercial | Office, Acquired 2015
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 51.4
Initial Cost
Land	0.5
Building & Improvements	3.4
Costs Capitalized Subsequent to Acquisition
Improvements	49.9
Gross Balance at December 31, 2020
Land	0.5
Building & Improvements	59.2
Total	59.7
Accumulated Depreciation	$ (0.6)
Depreciable Life in Years	39 years
Ireland | Hotel | Hotel, Constructed 1824, 2005
Initial Cost
Land	$ 54.0
Building & Improvements	114.3
Costs Capitalized Subsequent to Acquisition
Improvements	33.4
Gross Balance at December 31, 2020
Land	44.5
Building & Improvements	129.8
Total	174.3
Accumulated Depreciation	$ (40.7)
Depreciable Life in Years	39 years
Ireland | Hotel | Office, Acquired, 2022
Gross Balance at December 31, 2020
Depreciable Life in Years	39 years
Ireland | Development | Office, Acquired 2020
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	1.2
Building & Improvements	0.9
Costs Capitalized Subsequent to Acquisition
Improvements	0.9
Gross Balance at December 31, 2020
Land	1.2
Building & Improvements	0.9
Total	2.1
Accumulated Depreciation	0.0
Ireland | Development | Office, Acquired, 2022
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0.0
Initial Cost
Land	0.0
Building & Improvements	9.6
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	0.0
Building & Improvements	9.6
Total	9.6
Accumulated Depreciation	(0.1)
Spain | Commercial | Retail, Constructed 1995
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	36.9
Initial Cost
Land	27.1
Building & Improvements	46.2
Costs Capitalized Subsequent to Acquisition
Improvements	12.7
Gross Balance at December 31, 2020
Land	28.4
Building & Improvements	61.1
Total	89.5
Accumulated Depreciation	$ (9.8)
Depreciable Life in Years	39 years
Spain | Development | Retail, Acquired 2015
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	0.0
Building & Improvements	34.7
Costs Capitalized Subsequent to Acquisition
Improvements	16.3
Gross Balance at December 31, 2020
Land	0.0
Building & Improvements	48.4
Total	48.4
Accumulated Depreciation	0.0
Spain | Development | Retail Acquired 2017
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0.0
Initial Cost
Land	0.0
Building & Improvements	13.8
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	0.0
Building & Improvements	13.2
Total	13.2
Accumulated Depreciation	0.0
Italy | Commercial | Office Portfolio, Acquired 2015
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0.0
Initial Cost
Land	26.3
Building & Improvements	74.8
Costs Capitalized Subsequent to Acquisition
Improvements	0.6
Gross Balance at December 31, 2020
Land	30.1
Building & Improvements	86.2
Total	116.3
Accumulated Depreciation	$ (15.4)
Depreciable Life in Years	39 years
Pacific Northwest | Commercial | Office, Constructed 1999 and 2001
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 77.0
Initial Cost
Land	30.6
Building & Improvements	106.0
Costs Capitalized Subsequent to Acquisition
Improvements	3.6
Gross Balance at December 31, 2020
Land	30.6
Building & Improvements	109.6
Total	140.2
Accumulated Depreciation	$ (15.4)
Depreciable Life in Years	39 years
Pacific Northwest | Multifamily | 430-Unit Multifamily Building, Constructed 2006
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 61.0
Initial Cost
Land	12.8
Building & Improvements	67.4
Costs Capitalized Subsequent to Acquisition
Improvements	5.5
Gross Balance at December 31, 2020
Land	12.8
Building & Improvements	72.9
Total	85.7
Accumulated Depreciation	$ (14.1)
Depreciable Life in Years	39 years
Number of units | Unit	430
Pacific Northwest | Multifamily | 210-Multifamily Building, Constructed 2007
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 44.5
Initial Cost
Land	11.0
Building & Improvements	46.7
Costs Capitalized Subsequent to Acquisition
Improvements	1.2
Gross Balance at December 31, 2020
Land	11.0
Building & Improvements	47.9
Total	58.9
Accumulated Depreciation	$ (6.9)
Depreciable Life in Years	39 years
Number of units | Unit	210
Pacific Northwest | Multifamily | 264-Unit Multifamily Building, Constructed 1997
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 24.2
Initial Cost
Land	6.4
Building & Improvements	44.9
Costs Capitalized Subsequent to Acquisition
Improvements	5.8
Gross Balance at December 31, 2020
Land	6.4
Building & Improvements	50.7
Total	57.1
Accumulated Depreciation	$ (8.1)
Depreciable Life in Years	39 years
Number of units | Unit	264
Pacific Northwest | Multifamily | 343-Unit Multifamily Building, Constructed 2016
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 84.0
Initial Cost
Land	26.8
Building & Improvements	107.4
Costs Capitalized Subsequent to Acquisition
Improvements	1.1
Gross Balance at December 31, 2020
Land	26.8
Building & Improvements	108.5
Total	135.3
Accumulated Depreciation	$ (14.4)
Depreciable Life in Years	39 years
Number of units | Unit	343
Pacific Northwest | Multifamily | 179-Unit Multifamily Building, Constructed 2013
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 33.2
Initial Cost
Land	11.9
Building & Improvements	47.4
Costs Capitalized Subsequent to Acquisition
Improvements	1.9
Gross Balance at December 31, 2020
Land	11.9
Building & Improvements	49.4
Total	61.3
Accumulated Depreciation	$ (6.8)
Depreciable Life in Years	39 years
Number of units | Unit	179
Pacific Northwest | Multifamily | 383-Unit Multifamily Building Constructed 2002 And 2008
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 115.0
Initial Cost
Land	38.3
Building & Improvements	153.0
Costs Capitalized Subsequent to Acquisition
Improvements	3.0
Gross Balance at December 31, 2020
Land	38.2
Building & Improvements	156.1
Total	194.3
Accumulated Depreciation	$ (5.1)
Depreciable Life in Years	39 years
Number of units | Unit	383
Pacific Northwest | Multifamily | 164-Unit Multifamily Building Constructed 2020
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 43.0
Initial Cost
Land	14.8
Building & Improvements	59.2
Costs Capitalized Subsequent to Acquisition
Improvements	0.1
Gross Balance at December 31, 2020
Land	14.8
Building & Improvements	59.3
Total	74.1
Accumulated Depreciation	$ (1.9)
Depreciable Life in Years	39 years
Number of units | Unit	164
Northern California | Commercial | Office Constructed 2000
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 60.7
Initial Cost
Land	23.5
Building & Improvements	57.3
Costs Capitalized Subsequent to Acquisition
Improvements	5.3
Gross Balance at December 31, 2020
Land	23.5
Building & Improvements	62.6
Total	86.1
Accumulated Depreciation	$ (4.8)
Depreciable Life in Years	39 years
Northern California | Multifamily | 1,008-Unit Multifamily Building, Constructed 1988
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 175.0
Initial Cost
Land	62.3
Building & Improvements	152.5
Costs Capitalized Subsequent to Acquisition
Improvements	24.9
Gross Balance at December 31, 2020
Land	62.3
Building & Improvements	177.4
Total	239.7
Accumulated Depreciation	$ (46.2)
Depreciable Life in Years	39 years
Number of units | Unit	1,008
Hawaii | Ground Leases | 2700 acres
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	31.7
Building & Improvements	3.7
Costs Capitalized Subsequent to Acquisition
Improvements	0.7
Gross Balance at December 31, 2020
Land	28.2
Building & Improvements	4.4
Total	32.6
Accumulated Depreciation	$ (2.4)
Area of real estate property (in sq ft) | a	2,700
Hawaii | Ground Leases | 3 Lots
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0.0
Initial Cost
Land	16.5
Building & Improvements	0.0
Costs Capitalized Subsequent to Acquisition
Improvements	0.0
Gross Balance at December 31, 2020
Land	16.5
Building & Improvements	0.0
Total	16.5
Accumulated Depreciation	$ 0.0
Number of lots | lot	3