Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph Column F
-Subsection 29

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column F))
-URI http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014

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Fixed interest rate related to the interest rate derivative.

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Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
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-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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Derivative Instruments and Hedging (Details) - Not Designated as Hedging Instrument - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Interest rate derivatives - caps
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount (in thousands)	$ 3,511,301,000		$ 842,000,000
Aggregate principal balance on corresponding mortgage loans (in thousands)	$ 3,358,301,000		$ 697,000,000
Interest rate derivatives - caps \| Minimum
Derivative Instruments, Gain (Loss) [Line Items]
Strike rate	2.50%		3.00%
Interest rate derivatives - caps \| Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Strike rate	4.00%		4.00%
Interest rate derivatives - floors
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount (in thousands)	$ 25,000,000		$ 25,000,000
Interest rate derivatives - floors \| Minimum
Derivative Instruments, Gain (Loss) [Line Items]
Strike rate	1.25%		1.25%
Interest rate derivatives - floors \| Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Strike rate	1.25%		1.25%
Interest rate derivatives - caps
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount (in thousands)	$ 3,304,301,000	$ 457,000,000
Total cost (in thousands)	$ 574,000	$ 83,000
Interest rate derivatives - caps \| Minimum
Derivative Instruments, Gain (Loss) [Line Items]
Strike rate	2.50%	3.00%
Interest rate derivatives - caps \| Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Strike rate	4.00%	4.00%