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Investments - Mortgage Loan Credit Monitoring (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Financing Receivable, Credit Quality Indicator |  |
Mortgage loans, Total amortized cost | $ 20,086.4 | $ 18,103.9
Reinsurance recoverables | 1,122.7 | 1,098.0
Accrued interest receivable | 570.1 | 552.5
Commercial mortgage loans |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 2,109.3 |
2020 | 2,114.9 | 2,019.8
2019 | 2,741.0 | 2,769.9
2018 | 2,581.1 | 2,817.2
2017 | 1,806.3 | 2,049.3
2016 |  | 1,509.3
Prior | 4,980.0 | 4,276.1
Mortgage loans, Total amortized cost | 16,332.6 | 15,441.6
Accrued interest receivable | 59.3 | 60.0
Commercial mortgage loans | A- and above |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 1,852.4 |
2020 | 1,812.6 | 1,807.6
2019 | 2,447.0 | 2,486.8
2018 | 2,411.6 | 2,464.7
2017 | 1,623.0 | 1,780.8
2016 |  | 1,417.8
Prior | 4,504.4 | 3,697.0
Mortgage loans, Total amortized cost | 14,651.0 | 13,654.7
Commercial mortgage loans | BBB+ thru BBB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 233.1 |
2020 | 296.9 | 149.1
2019 | 294.0 | 194.1
2018 | 160.5 | 352.5
2017 | 183.3 | 262.7
2016 |  | 75.8
Prior | 384.8 | 499.7
Mortgage loans, Total amortized cost | 1,552.6 | 1,533.9
Commercial mortgage loans | BB+ thru BB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 23.8 |
2020 | 5.4 | 23.7
2019 |  | 69.0
2016 |  | 9.1
Prior | 56.1 | 43.9
Mortgage loans, Total amortized cost | 85.3 | 145.7
Commercial mortgage loans | B+ and below |  |
Financing Receivable, Credit Quality Indicator |  |
2020 |  | 39.4
2019 |  | 20.0
2018 | 9.0 |
2017 |  | 5.8
2016 |  | 6.6
Prior | 34.7 | 35.5
Mortgage loans, Total amortized cost | 43.7 | 107.3
Direct financing leases |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 78.2 |
2020 | 117.3 | 209.7
2019 | 26.0 | 29.6
2018 | 58.6 | 65.8
2017 | 33.1 | 37.6
2016 |  | 19.3
Prior | 310.2 | 348.8
Mortgage loans, Total amortized cost | 623.4 | 710.8
Accrued interest receivable | 1.1 | 0.5
Direct financing leases | A- and above |  |
Financing Receivable, Credit Quality Indicator |  |
2020 | 44.1 | 43.9
2019 | 1.4 | 1.6
2018 | 40.3 | 42.6
2017 | 17.1 | 19.2
2016 |  | 15.3
Prior | 255.0 | 202.9
Mortgage loans, Total amortized cost | 357.9 | 325.5
Direct financing leases | BBB+ thru BBB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 25.1 |
2020 | 59.4 | 94.9
2019 | 22.7 | 5.5
2018 | 18.3 | 11.3
2017 | 16.0 | 18.4
2016 |  | 3.0
Prior | 53.1 | 35.5
Mortgage loans, Total amortized cost | 194.6 | 168.6
Direct financing leases | BB+ thru BB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 51.6 |
2020 | 13.8 | 13.3
2019 | 1.9 |
Prior | 2.1 | 1.9
Mortgage loans, Total amortized cost | 69.4 | 15.2
Direct financing leases | B+ and below |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 1.5 |
2020 |  | 57.6
2019 |  | 22.5
2018 |  | 11.9
2016 |  | 1.0
Prior |  | 108.5
Mortgage loans, Total amortized cost | 1.5 | 201.5
Residential mortgage loans |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 1,665.9 |
2020 | 587.0 | 699.1
2019 | 182.8 | 338.7
2018 | 102.1 | 167.8
2017 | 118.3 | 166.5
2016 |  | 168.0
Prior | 474.3 | 411.4
Mortgage loans, Total amortized cost | 3,130.4 | 1,951.5
Accrued interest receivable | 16.5 | 2.0
Residential mortgage loans | Performing |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 1,665.2 |
2020 | 585.2 | 699.1
2019 | 181.5 | 336.7
2018 | 101.5 | 167.0
2017 | 117.5 | 165.1
2016 |  | 167.6
Prior | 470.3 | 398.7
Mortgage loans, Total amortized cost | 3,121.2 | 1,934.2
Residential mortgage loans | Non-performing |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 0.7 |
2020 | 1.8 |
2019 | 1.3 | 2.0
2018 | 0.6 | 0.8
2017 | 0.8 | 1.4
2016 |  | 0.4
Prior | 4.0 | 12.7
Mortgage loans, Total amortized cost | $ 9.2 | $ 17.3
Mortgage loans, Days delinquent to be considered non-performing | 90 days |

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