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Mortgage Loans by Property Type and Geographic Region (Detail) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 2,261.1 | $ 2,318.2
Mortgage Loans, Percent of Total | 100.00% | 100.00%
New England |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 53.9 | $ 55.1
Mortgage Loans, Percent of Total | 2.40% | 2.40%
Mid-Atlantic |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 164.1 | $ 155.1
Mortgage Loans, Percent of Total | 7.30% | 6.70%
East North Central |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 295.8 | $ 314.4
Mortgage Loans, Percent of Total | 13.10% | 13.60%
West North Central |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 160.7 | $ 163.5
Mortgage Loans, Percent of Total | 7.10% | 7.00%
South Atlantic |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 529.1 | $ 553.0
Mortgage Loans, Percent of Total | 23.30% | 23.80%
East South Central |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 108.8 | $ 110.7
Mortgage Loans, Percent of Total | 4.80% | 4.80%
West South Central |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 197.4 | $ 200.9
Mortgage Loans, Percent of Total | 8.70% | 8.70%
Mountain |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 277.1 | $ 282.7
Mortgage Loans, Percent of Total | 12.30% | 12.20%
Pacific |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 474.2 | $ 482.8
Mortgage Loans, Percent of Total | 21.00% | 20.80%
Apartment |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 667.5 | $ 685.8
Mortgage Loans, Percent of Total | 29.50% | 29.60%
Industrial |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 695.8 | $ 706.0
Mortgage Loans, Percent of Total | 30.80% | 30.50%
Office |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 368.1 | $ 379.9
Mortgage Loans, Percent of Total | 16.30% | 16.40%
Retail |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 487.7 | $ 503.9
Mortgage Loans, Percent of Total | 21.50% | 21.70%
Other Property |  |
Mortgage Loans on Real Estate |  |
Mortgage Loans, Carrying Amount | $ 42.0 | $ 42.6
Mortgage Loans, Percent of Total | 1.90% | 1.80%

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