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Investments - Mortgage Loan Credit Monitoring (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Financing Receivable, Credit Quality Indicator |  |
Mortgage loans, Total amortized cost | $ 19,153.6 | $ 18,103.9
Reinsurance recoverables | 1,093.4 | 1,098.0
Accrued interest receivable | 544.9 | 552.5
Commercial mortgage loans |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 1,418.7 |
2020 | 2,036.5 | 2,019.8
2019 | 2,773.2 | 2,769.9
2018 | 2,679.9 | 2,817.2
2017 | 1,884.4 | 2,049.3
2016 |  | 1,509.3
Prior | 5,368.8 | 4,276.1
Mortgage loans, Total amortized cost | 16,161.5 | 15,441.6
Accrued interest receivable | 62.0 | 60.0
Commercial mortgage loans | A- and above |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 1,191.5 |
2020 | 1,741.5 | 1,807.6
2019 | 2,391.8 | 2,486.8
2018 | 2,471.2 | 2,464.7
2017 | 1,704.4 | 1,780.8
2016 |  | 1,417.8
Prior | 4,764.4 | 3,697.0
Mortgage loans, Total amortized cost | 14,264.8 | 13,654.7
Commercial mortgage loans | BBB+ thru BBB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 218.8 |
2020 | 260.3 | 149.1
2019 | 331.0 | 194.1
2018 | 208.7 | 352.5
2017 | 180.0 | 262.7
2016 |  | 75.8
Prior | 517.3 | 499.7
Mortgage loans, Total amortized cost | 1,716.1 | 1,533.9
Commercial mortgage loans | BB+ thru BB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 8.4 |
2020 | 34.7 | 23.7
2019 | 50.4 | 69.0
2016 |  | 9.1
Prior | 51.9 | 43.9
Mortgage loans, Total amortized cost | 145.4 | 145.7
Commercial mortgage loans | B+ and below |  |
Financing Receivable, Credit Quality Indicator |  |
2020 |  | 39.4
2019 |  | 20.0
2017 |  | 5.8
2016 |  | 6.6
Prior | 35.2 | 35.5
Mortgage loans, Total amortized cost | 35.2 | 107.3
Direct financing leases |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 42.5 |
2020 | 173.5 | 209.7
2019 | 28.9 | 29.6
2018 | 64.9 | 65.8
2017 | 36.8 | 37.6
2016 |  | 19.3
Prior | 347.4 | 348.8
Mortgage loans, Total amortized cost | 694.0 | 710.8
Accrued interest receivable | 1.9 | 0.5
Direct financing leases | A- and above |  |
Financing Receivable, Credit Quality Indicator |  |
2020 | 92.4 | 43.9
2019 | 1.6 | 1.6
2018 | 44.7 | 42.6
2017 | 18.6 | 19.2
2016 |  | 15.3
Prior | 286.0 | 202.9
Mortgage loans, Total amortized cost | 443.3 | 325.5
Direct financing leases | BBB+ thru BBB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 27.9 |
2020 | 62.5 | 94.9
2019 | 25.2 | 5.5
2018 | 20.2 | 11.3
2017 | 17.9 | 18.4
2016 |  | 3.0
Prior | 59.0 | 35.5
Mortgage loans, Total amortized cost | 212.7 | 168.6
Direct financing leases | BB+ thru BB- |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 14.6 |
2020 | 16.9 | 13.3
2019 | 2.1 |
Prior | 2.4 | 1.9
Mortgage loans, Total amortized cost | 36.0 | 15.2
Direct financing leases | B+ and below |  |
Financing Receivable, Credit Quality Indicator |  |
2020 | 1.7 | 57.6
2019 |  | 22.5
2018 |  | 11.9
2017 | 0.3 |
2016 |  | 1.0
Prior |  | 108.5
Mortgage loans, Total amortized cost | 2.0 | 201.5
Residential mortgage loans |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 574.8 |
2020 | 670.1 | 699.1
2019 | 230.5 | 338.7
2018 | 125.1 | 167.8
2017 | 143.3 | 166.5
2016 |  | 168.0
Prior | 554.3 | 411.4
Mortgage loans, Total amortized cost | 2,298.1 | 1,951.5
Accrued interest receivable | 15.2 | 2.0
Residential mortgage loans | Performing |  |
Financing Receivable, Credit Quality Indicator |  |
2021 | 574.8 |
2020 | 670.1 | 699.1
2019 | 229.8 | 336.7
2018 | 125.1 | 167.0
2017 | 143.3 | 165.1
2016 |  | 167.6
Prior | 549.3 | 398.7
Mortgage loans, Total amortized cost | 2,292.4 | 1,934.2
Residential mortgage loans | Non-performing |  |
Financing Receivable, Credit Quality Indicator |  |
2019 | 0.7 | 2.0
2018 |  | 0.8
2017 |  | 1.4
2016 |  | 0.4
Prior | 5.0 | 12.7
Mortgage loans, Total amortized cost | $ 5.7 | $ 17.3
Mortgage loans, Days delinquent to be considered non-performing | 90 days |

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