Investments - Mortgage Loan Modifications (Details) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022 USD ($) contract	Jun. 30, 2022 USD ($)
Financing Receivable, Modifications [Line Items]
Number of contracts	1	1.0
Recorded investment	$ 34.4	$ 34.4
Commercial mortgage loans
Financing Receivable, Modifications [Line Items]
Number of contracts	1	1.0
Recorded investment	$ 34.4	$ 34.4

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

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Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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