Amount of principal due on delinquent 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, acquired from controlled and other affiliates.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Footnote 10(b)
-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
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
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Interest rate 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.

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 948
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-Section S99
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Amount of prior lien on real estate securing 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.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 310
-Section S99
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Amount of 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.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 310
-Section S99
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Mortgage Loans on Real Estate.

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Schedule IV - Mortgage Loans on Real Estate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Mortgage Loans on Real Estate
Prior Liens	$ 0
Face Amount of Mortgages	657,283
Carrying Amount of Mortgages	697,906	$ 877,102	$ 293,752	$ 145,686
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 5,815
First Mortgage Loans \| Triple-net \| North Carolina
Mortgage Loans on Real Estate
Interest Rate	8.44%
Prior Liens	$ 0
Face Amount of Mortgages	32,783
Carrying Amount of Mortgages	32,278
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
First Mortgage, Multiple Properties \| Triple-net \| United Kingdom
Mortgage Loans on Real Estate
Interest Rate	12.00%
Prior Liens	$ 0
Face Amount of Mortgages	624,500
Carrying Amount of Mortgages	597,198
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
First Mortgages, Less Than Three Percent Of Total \| Various \| United States - 9
Mortgage Loans on Real Estate
Carrying Amount of Mortgages	68,430
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 5,815
First Mortgages, Less Than Three Percent Of Total \| Various \| United States - 9 \| Minimum
Mortgage Loans on Real Estate
Interest Rate	7.00%
First Mortgages, Less Than Three Percent Of Total \| Various \| United States - 9 \| Maximum
Mortgage Loans on Real Estate
Interest Rate	17.00%