Real Estate Properties - Disposition Activities (Details) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Feb. 13, 2025 USD ($) ft² property	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($) property	Dec. 31, 2024 USD ($) ft² property	Dec. 31, 2023 USD ($) ft² property
Real Estate Properties [Line Items]
Gain (Loss) on Sale of Real Estate				$ (7,410)	$ 3,780
(Loss) on Impairment of Real Estate				$ (181,578)	$ (11,299)
Impairment charge on reclassified assets		$ 2,573
Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				24	8
Rentable Square Feet (in square feet) | ft²				2,789,000	553,000
Gross Sales Price				$ 199,351	$ 44,874
Gain (Loss) on Sale of Real Estate				(7,410)	3,780
(Loss) on Impairment of Real Estate				$ (147,946)
Disposal Group, Held-for-sale, Not Discontinued Operations
Real Estate Properties [Line Items]
Number of Properties (in properties) | property			1	5
Rentable Square Feet (in square feet) | ft²				581,000
Gross Sales Price				$ 54,763
(Loss) on Impairment of Real Estate			$ (12,017)	$ (19,042)
Number of Properties, under agreement to sell | property				6
Loss on Impairment Of Real Estate, under agreement to sell				$ (19,042)
Disposal Group, Held-for-sale, Not Discontinued Operations | Subsequent Event
Real Estate Properties [Line Items]
Number of Properties (in properties) | property	1
Rentable Square Feet (in square feet) | ft²	100,000,000
Gross Sales Price	$ 5,750
Chicago, IL | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				248,000
Gross Sales Price				$ 38,500
Gain (Loss) on Sale of Real Estate				(2,448)
(Loss) on Impairment of Real Estate				$ 0	$ (11,299)
Malden, MA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				126,000
Gross Sales Price				$ 7,800
Gain (Loss) on Sale of Real Estate				(10)
(Loss) on Impairment of Real Estate				$ (13,973)
Indianapolis, IN | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				3
Rentable Square Feet (in square feet) | ft²				434,000
Gross Sales Price				$ 10,100
Gain (Loss) on Sale of Real Estate				729
(Loss) on Impairment of Real Estate				$ (50,851)
Atlanta, GA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				126,000
Gross Sales Price				$ 17,610
Gain (Loss) on Sale of Real Estate				8,690
(Loss) on Impairment of Real Estate				$ 0
San Jose, CA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				64,000
Gross Sales Price				$ 10,800
Gain (Loss) on Sale of Real Estate				(954)
(Loss) on Impairment of Real Estate				$ (819)
Colorado Springs, CO | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				156,000
Gross Sales Price				$ 26,164
Gain (Loss) on Sale of Real Estate				12,962
(Loss) on Impairment of Real Estate				$ 0
Rocklin, CA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				19,000
Gross Sales Price				$ 2,627
Gain (Loss) on Sale of Real Estate				1,084
(Loss) on Impairment of Real Estate				$ 0
Lakewood, CO | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				3
Rentable Square Feet (in square feet) | ft²				213,000
Gross Sales Price				$ 8,100
Gain (Loss) on Sale of Real Estate				(9,132)
(Loss) on Impairment of Real Estate				$ 0
Atlanta, GA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				5
Rentable Square Feet (in square feet) | ft²				379,000
Gross Sales Price				$ 18,100
Gain (Loss) on Sale of Real Estate				79
(Loss) on Impairment of Real Estate				$ (21,937)
Florence, KY | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				168,000
Gross Sales Price				$ 3,250
Gain (Loss) on Sale of Real Estate				(6,966)
(Loss) on Impairment of Real Estate				$ 0
Sacramento, CA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				338,000
Gross Sales Price				$ 21,000
Gain (Loss) on Sale of Real Estate				(6,502)
(Loss) on Impairment of Real Estate				$ (33,902)
Reston, VA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				131,000
Gross Sales Price				$ 7,200
Gain (Loss) on Sale of Real Estate				(869)
(Loss) on Impairment of Real Estate				$ (18,540)
Reston, VA | Disposal Group, Held-for-sale, Not Discontinued Operations
Real Estate Properties [Line Items]
Rentable Square Feet (in square feet) | ft²				275,000
Gross Sales Price				$ 18,125
Number of Properties, under agreement to sell | property				1
Loss on Impairment Of Real Estate, under agreement to sell				$ 0
Kansas City, MO | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				87,000
Gross Sales Price				$ 8,000
Gain (Loss) on Sale of Real Estate				32
(Loss) on Impairment of Real Estate				$ (4,370)
Westford, MA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				1
Rentable Square Feet (in square feet) | ft²				175,000
Gross Sales Price				$ 5,100
Gain (Loss) on Sale of Real Estate				(6,481)
(Loss) on Impairment of Real Estate				$ (3,554)
Provo, UT | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property				2
Rentable Square Feet (in square feet) | ft²				125,000
Gross Sales Price				$ 15,000
Gain (Loss) on Sale of Real Estate				2,376
(Loss) on Impairment of Real Estate				$ 0
Santa Clara, CA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property					1
Rentable Square Feet (in square feet) | ft²					66,000
Gross Sales Price					$ 16,049
Gain (Loss) on Sale of Real Estate					$ 705
Santa Clara, CA | Disposal Group, Held-for-sale, Not Discontinued Operations
Real Estate Properties [Line Items]
Rentable Square Feet (in square feet) | ft²				149,000
Gross Sales Price				$ 21,150
Number of Properties, under agreement to sell | property				2
Loss on Impairment Of Real Estate, under agreement to sell				$ (11,041)
Tempe, AZ | Disposal Group, Held-for-sale, Not Discontinued Operations
Real Estate Properties [Line Items]
Rentable Square Feet (in square feet) | ft²				101,000
Gross Sales Price				$ 10,738
Number of Properties, under agreement to sell | property				2
Loss on Impairment Of Real Estate, under agreement to sell				$ 0
Detroit, MI | Disposal Group, Held-for-sale, Not Discontinued Operations
Real Estate Properties [Line Items]
Rentable Square Feet (in square feet) | ft²				56,000
Gross Sales Price				$ 4,750
Number of Properties, under agreement to sell | property				1
Loss on Impairment Of Real Estate, under agreement to sell				$ (8,001)
Richfield, VA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property					3
Rentable Square Feet (in square feet) | ft²					89,000
Gross Sales Price					$ 5,350
Gain (Loss) on Sale of Real Estate					$ 2,548
Phoenix, AZ | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property					1
Rentable Square Feet (in square feet) | ft²					107,000
Gross Sales Price					$ 4,900
Gain (Loss) on Sale of Real Estate					$ 511
Vernon Hills, IL | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property					1
Rentable Square Feet (in square feet) | ft²					100,000
Gross Sales Price					$ 2,825
Gain (Loss) on Sale of Real Estate					$ (2,816)
Windsor Mill, MD | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property					1
Rentable Square Feet (in square feet) | ft²					80,000
Gross Sales Price					$ 10,500
Gain (Loss) on Sale of Real Estate					$ 244
Chelmsford, MA | Disposal Group, Disposed of by Sale
Real Estate Properties [Line Items]
Number of Properties (in properties) | property					1
Rentable Square Feet (in square feet) | ft²					111,000
Gross Sales Price					$ 5,250
Gain (Loss) on Sale of Real Estate					$ 2,588