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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

Amount of financing receivable originated more than five years prior to current fiscal year.

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Amount of financing receivable originated four years prior to current fiscal year.

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Amount of financing receivable originated in current fiscal year.

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Amount of financing receivable originated in fiscal year prior to current fiscal year.

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Amount of financing receivable originated three years prior to current fiscal year.

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Amount of financing receivable originated two years prior to current fiscal year.

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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Amount, before allowance for credit loss, of financing receivable.

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Mortgage Loans, Sorted by Applicable Credit Quality Indicators (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	$ 2,434.4			$ 2,397.0
Loan to Value Ratio Below or Equal to 65 Percent
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	1,256.0			1,215.1
Loan To Value Ratio Above 65 To 75 Percent
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	1,065.4			1,053.0
Loan To Value Ratio Above 75 To 85 Percent
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	40.2			91.4
Loan To Value Ratio Above 85 Percent
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	72.8			37.5
Originated Five or More Years before Last Fiscal Year
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	809.2
Originated Four Years before Last Fiscal Year
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	408.3
Originated Three Years before Last Fiscal Year
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	334.2
Originated Two Years before Last Fiscal Year
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	392.6
Originated in Fiscal Year before Latest Fiscal Year
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	369.6
Originated in Current Fiscal Year
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	120.5
Commercial Real Estate
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	811.9
Financing Receivable, Originated Four Years before Latest Fiscal Year	410.3
Financing Receivable, Originated Three Years before Latest Fiscal Year	336.2
Financing Receivable, Originated Two Years before Latest Fiscal Year	395.4
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	372.5
Financing Receivable, Originated in Current Fiscal Year	121.3
Financing Receivable, before Allowance for Credit Loss	2,447.6			2,397.0
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	13.2
Commercial Real Estate \| Loan to Value Ratio Below or Equal to 65 Percent
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	665.4
Financing Receivable, Originated Four Years before Latest Fiscal Year	260.3
Financing Receivable, Originated Three Years before Latest Fiscal Year	136.6
Financing Receivable, Originated Two Years before Latest Fiscal Year	78.2
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	83.8
Financing Receivable, Originated in Current Fiscal Year	35.5
Financing Receivable, before Allowance for Credit Loss	1,259.8
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	3.9	$ 3.5	$ 2.8
Commercial Real Estate \| Loan To Value Ratio Above 65 To 75 Percent
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	69.0
Financing Receivable, Originated Four Years before Latest Fiscal Year	113.0
Financing Receivable, Originated Three Years before Latest Fiscal Year	199.6
Financing Receivable, Originated Two Years before Latest Fiscal Year	317.2
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	288.7
Financing Receivable, Originated in Current Fiscal Year	85.8
Financing Receivable, before Allowance for Credit Loss	1,073.3
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	7.9	6.5	4.6
Commercial Real Estate \| Loan To Value Ratio Above 75 To 85 Percent
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3.6
Financing Receivable, Originated Four Years before Latest Fiscal Year	37.0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0.0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0.0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0.0
Financing Receivable, Originated in Current Fiscal Year	0.0
Financing Receivable, before Allowance for Credit Loss	40.6
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	1.0	0.4	0.5
Commercial Real Estate \| Loan To Value Ratio Above 85 Percent
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	73.9
Financing Receivable, Originated Four Years before Latest Fiscal Year	0.0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0.0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0.0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0.0
Financing Receivable, Originated in Current Fiscal Year	0.0
Financing Receivable, before Allowance for Credit Loss	73.9
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	0.4	$ 0.7	$ 0.4
Commercial Real Estate \| Originated Five or More Years before Last Fiscal Year
Mortgage Loans on Real Estate
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	2.7
Commercial Real Estate \| Originated Four Years before Last Fiscal Year
Mortgage Loans on Real Estate
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	2.0
Commercial Real Estate \| Originated Three Years before Last Fiscal Year
Mortgage Loans on Real Estate
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	2.0
Commercial Real Estate \| Originated Two Years before Last Fiscal Year
Mortgage Loans on Real Estate
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	2.8
Commercial Real Estate \| Originated in Fiscal Year before Latest Fiscal Year
Mortgage Loans on Real Estate
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	2.9
Commercial Real Estate \| Originated in Current Fiscal Year
Mortgage Loans on Real Estate
Financing Receivable, Allowance for Credit Losses, Mortgage Loans	0.8
A Credit Rating
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	476.1			485.6
A Credit Rating \| Commercial Real Estate
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	228.4
Financing Receivable, Originated Four Years before Latest Fiscal Year	118.3
Financing Receivable, Originated Three Years before Latest Fiscal Year	52.9
Financing Receivable, Originated Two Years before Latest Fiscal Year	60.3
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	17.4
Financing Receivable, Originated in Current Fiscal Year	0.0
Financing Receivable, before Allowance for Credit Loss	477.3
BBB Credit Rating
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	1,912.2			1,911.4
BBB Credit Rating \| Commercial Real Estate
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	537.1
Financing Receivable, Originated Four Years before Latest Fiscal Year	292.0
Financing Receivable, Originated Three Years before Latest Fiscal Year	283.3
Financing Receivable, Originated Two Years before Latest Fiscal Year	335.1
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	355.1
Financing Receivable, Originated in Current Fiscal Year	121.3
Financing Receivable, before Allowance for Credit Loss	1,923.9
BB Credit Rating
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	29.6			0.0
BB Credit Rating \| Commercial Real Estate
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	29.8
Financing Receivable, Originated Four Years before Latest Fiscal Year	0.0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0.0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0.0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0.0
Financing Receivable, Originated in Current Fiscal Year	0.0
Financing Receivable, before Allowance for Credit Loss	29.8
B Credit Rating
Mortgage Loans on Real Estate
Mortgage Loans, Carrying Amount	16.5			$ 0.0
B Credit Rating \| Commercial Real Estate
Mortgage Loans on Real Estate
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	16.6
Financing Receivable, Originated Four Years before Latest Fiscal Year	0.0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0.0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0.0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0.0
Financing Receivable, Originated in Current Fiscal Year	0.0
Financing Receivable, before Allowance for Credit Loss	$ 16.6