Fair Value Measurements - Schedule Fair Value Measurements Inputs (Details)	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Holding Period
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property held-for-sale, measurement input	10
Capitalization Rates | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property held-for-sale, measurement input	0.080
Capitalization Rates | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property held-for-sale, measurement input	0.090
Discount Rates | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property held-for-sale, measurement input	0.090
Discount Rates | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property held-for-sale, measurement input	0.120
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap liabilities	$ (19,687,000)	$ (1,928,000)
Fair Value, Recurring | Fair Value Measurements Using Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap liabilities	0	0
Fair Value, Recurring | Fair Value Measurements Using Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap liabilities	(19,687,000)	(1,928,000)
Fair Value, Recurring | Fair Value Measurements Using Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap liabilities	0	0
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired property held for sale	8,742,000
Impaired real estate assets		4,846,000
Fair Value, Nonrecurring | Fair Value Measurements Using Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired property held for sale	0
Impaired real estate assets		0
Fair Value, Nonrecurring | Fair Value Measurements Using Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired property held for sale	0
Impaired real estate assets		0
Fair Value, Nonrecurring | Fair Value Measurements Using Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired property held for sale	$ 8,742,000
Impaired real estate assets		$ 4,846,000