Commercial Mortgage Loans - Loans Receivable by Class (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Total gross carrying value of loans	$ 5,269,776	$ 4,226,888
Less: Allowance for credit losses	40,848	15,827
Total commercial mortgage loans, held for investment, net	5,228,928	4,211,061
General allowance for credit losses
Financing Receivable, Credit Quality Indicator [Line Items]
Less: Allowance for credit losses	26,624	15,827
Specific allowance for credit losses
Financing Receivable, Credit Quality Indicator [Line Items]
Less: Allowance for credit losses	14,224	0
Senior loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total gross carrying value of loans	5,251,464	4,204,464
Mezzanine loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total gross carrying value of loans	$ 18,312	$ 22,424

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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+ References

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 3B
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447

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No definition available.

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