Loans Held for Investment - Schedule of Contractual Aging of Loans by Portfolio (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	$ 15,201.6	$ 17,844.9
Financing Receivable, Allowance for Credit Loss, Writeoff	55.0	114.7	$ 35.9
Financing Receivable, Nonaccrual, Interest Income	(5.6)	(5.5)
Financing Receivable, Accrued Interest, Writeoff	(3.4)	(4.1)
Financing Receivable, Excluding Accrued Interest, Nonaccrual	0.0
Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	59.8	56.9
Loans and Leases Receivable, Collateral for Secured Borrowings	102.1	97.6
Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	4.5	13.5
Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	3.8	6.2
Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	60.5	40.5
Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	3.8	22.5
Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	8.4	10.7
Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	5.9	18.7
Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	20.5	21.4
Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	6.5	0.9
Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	3.6	3.3
Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	6.1	34.2
Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.2	3.0
Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	35.6	55.4
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	1,204.9	1,368.4
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,021.1	1,369.8
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	1,172.4	1,946.9
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	1,412.9	1,397.5
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	1,194.3	1,084.8
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	2,029.7	1,901.0
Financing Receivable, Excluding Accrued Interest, Revolving	59.6	75.2
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	49.5	119.6
Financing Receivable, Allowance for Credit Loss, Writeoff	22.0	25.4
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	8,144.4	9,263.2
Commercial Real Estate Portfolio Segment [Member] | Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	33.5	47.3
Commercial Real Estate Portfolio Segment [Member] | Pass
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	1,025.6	1,208.5
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	948.6	1,340.2
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	1,095.2	1,909.1
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	1,344.8	1,344.1
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	1,101.6	1,069.7
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	1,892.9	1,778.3
Financing Receivable, Excluding Accrued Interest, Revolving	59.0	74.1
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	49.5	109.8
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	7,517.2	8,833.8
Commercial Real Estate Portfolio Segment [Member] | Substandard
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	81.1	81.5
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	41.4	12.1
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	27.8	22.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	32.7	37.3
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	27.7	10.2
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	48.4	43.5
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.5
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	259.1	207.1
Commercial Real Estate Portfolio Segment [Member] | Other Assets Especial Mentioned
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	96.3	78.4
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	28.9	17.5
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	43.7	15.8
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	35.4	16.1
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	64.6	4.9
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	88.4	79.2
Financing Receivable, Excluding Accrued Interest, Revolving	0.6	0.6
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	9.8
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	357.9	222.3
Commercial Real Estate Portfolio Segment [Member] | Doubtful
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	1.9	0.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	2.2	0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	5.7	0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.4	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	10.2	0.0
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	34.1	4.9
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	5.7	2.8
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.3	0.0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	40.1	7.7
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	8,068.7	9,200.1
Commercial Real Estate Portfolio Segment [Member] | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.2
Commercial Real Estate Portfolio Segment [Member] | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.4	5.7
Commercial Real Estate Portfolio Segment [Member] | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.1	0.0
Commercial Real Estate Portfolio Segment [Member] | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	16.2	19.4
Commercial Real Estate Portfolio Segment [Member] | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	5.1	0.0
Commercial Real Estate Portfolio Segment [Member] | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.2	0.1
Commercial Real Estate Portfolio Segment [Member] | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Commercial Real Estate Portfolio Segment [Member] | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Real Estate Construction Financing Receivable [Member]
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	4.3	3.3
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	254.6	443.7
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	217.9	233.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	110.6	326.6
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	107.0	76.5
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	27.1	17.3
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	21.4	20.9
Financing Receivable, Excluding Accrued Interest, Revolving	86.1	124.8
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	12.5	1.8
Financing Receivable, Allowance for Credit Loss, Writeoff		13.2
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	837.2	1,244.6
Real Estate Construction Financing Receivable [Member] | Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	3.8	3.2
Real Estate Construction Financing Receivable [Member] | Pass
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	240.1	438.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	211.5	233.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	110.4	320.2
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	92.3	76.5
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	25.4	17.3
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	21.3	20.9
Financing Receivable, Excluding Accrued Interest, Revolving	85.9	124.8
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	12.5	1.8
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	799.4	1,232.5
Real Estate Construction Financing Receivable [Member] | Substandard
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	10.7	0.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	0.1	0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0.2	0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0.3	0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	1.0	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.1	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	0.2	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	12.6	0.0
Real Estate Construction Financing Receivable [Member] | Other Assets Especial Mentioned
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	3.8	2.1
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	5.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0.0	6.4
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	14.4	0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	23.2	8.5
Real Estate Construction Financing Receivable [Member] | Doubtful
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	0.0	3.6
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	1.3	0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.7	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	2.0	3.6
Real Estate Construction Financing Receivable [Member] | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	13.4	3.7
Real Estate Construction Financing Receivable [Member] | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.1	0.0
Real Estate Construction Financing Receivable [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.0
Real Estate Construction Financing Receivable [Member] | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	13.5	3.7
Real Estate Construction Financing Receivable [Member] | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	819.4	1,237.6
Real Estate Construction Financing Receivable [Member] | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		0.0
Real Estate Construction Financing Receivable [Member] | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		0.0
Real Estate Construction Financing Receivable [Member] | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		13.1
Real Estate Construction Financing Receivable [Member] | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		0.0
Real Estate Construction Financing Receivable [Member] | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		0.1
Real Estate Construction Financing Receivable [Member] | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		0.0
Real Estate Construction Financing Receivable [Member] | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		0.0
Real Estate Construction Financing Receivable [Member] | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff		0.0
Residential Mortgage [Member]
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	13.9	15.4
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	2,108.8	2,191.6
Residential Mortgage [Member] | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	8.3	6.6
Residential Mortgage [Member] | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	2.5	2.7
Residential Mortgage [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.1	0.4
Residential Mortgage [Member] | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	10.9	9.7
Residential Mortgage [Member] | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	2,084.0	2,166.5
Agricultural Real Estate Financing Receivable [Member]
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	27.1	5.3
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	126.9	132.6
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	88.1	61.4
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	46.5	131.2
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	111.4	117.4
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	90.5	78.9
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	143.2	145.7
Financing Receivable, Excluding Accrued Interest, Revolving	21.8	33.4
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.6	0.5
Financing Receivable, Allowance for Credit Loss, Writeoff	0.2
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	629.0	701.1
Agricultural Real Estate Financing Receivable [Member] | Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	23.8	1.8
Agricultural Real Estate Financing Receivable [Member] | Pass
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	100.8	118.6
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	68.5	53.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	36.5	104.7
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	104.0	107.9
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	73.7	66.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	121.6	144.1
Financing Receivable, Excluding Accrued Interest, Revolving	19.7	33.4
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.5
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	524.8	628.2
Agricultural Real Estate Financing Receivable [Member] | Substandard
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	15.9	12.9
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	9.5	8.2
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	6.6	19.7
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	2.9	3.4
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	8.1	4.4
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	7.8	0.9
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.6	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	51.4	49.5
Agricultural Real Estate Financing Receivable [Member] | Other Assets Especial Mentioned
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	10.2	1.1
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	10.1	0.2
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	3.4	6.8
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	4.5	6.1
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	8.7	8.5
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	13.8	0.7
Financing Receivable, Excluding Accrued Interest, Revolving	2.1	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	52.8	23.4
Agricultural Real Estate Financing Receivable [Member] | Doubtful
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	0.0	0.0
Agricultural Real Estate Financing Receivable [Member] | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.2	7.6
Agricultural Real Estate Financing Receivable [Member] | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	2.8
Agricultural Real Estate Financing Receivable [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.0
Agricultural Real Estate Financing Receivable [Member] | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.2	10.4
Agricultural Real Estate Financing Receivable [Member] | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	601.7	685.4
Agricultural Real Estate Financing Receivable [Member] | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0
Agricultural Real Estate Financing Receivable [Member] | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0
Agricultural Real Estate Financing Receivable [Member] | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.2
Agricultural Real Estate Financing Receivable [Member] | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0
Agricultural Real Estate Financing Receivable [Member] | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0
Agricultural Real Estate Financing Receivable [Member] | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0
Agricultural Real Estate Financing Receivable [Member] | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0
Agricultural Real Estate Financing Receivable [Member] | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0
Real Estate Financing Receivable [Member]
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	80.9	79.4
Financing Receivable, Allowance for Credit Loss, Writeoff	23.6	39.6	18.5
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	11,719.4	13,400.5
Real Estate Financing Receivable [Member] | Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	63.7	55.0
Real Estate Financing Receivable [Member] | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	56.0	22.8
Real Estate Financing Receivable [Member] | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	8.3	8.3
Real Estate Financing Receivable [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.4	0.4
Real Estate Financing Receivable [Member] | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	64.7	31.5
Real Estate Financing Receivable [Member] | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	11,573.8	13,289.6
Real Estate Financing Receivable [Member] | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.1	0.2
Real Estate Financing Receivable [Member] | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.9	5.9
Real Estate Financing Receivable [Member] | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.4	13.3
Real Estate Financing Receivable [Member] | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	16.6	19.5
Real Estate Financing Receivable [Member] | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	5.3	0.4
Real Estate Financing Receivable [Member] | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.3	0.3
Real Estate Financing Receivable [Member] | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Real Estate Financing Receivable [Member] | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Indirect consumer
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	5.6	3.9
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	31.5	267.7
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	171.0	128.3
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	75.7	168.6
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	103.1	69.5
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	40.5	44.8
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	55.7	46.1
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Allowance for Credit Loss, Writeoff	9.6	8.5
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	477.5	725.0
Indirect consumer | Performing Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	30.8	266.8
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	169.6	127.2
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	74.5	167.5
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	102.1	68.9
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	39.9	44.4
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	54.9	45.6
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	471.8	720.4
Indirect consumer | Nonperforming Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	0.7	0.9
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	1.4	1.1
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	1.2	1.1
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	1.0	0.6
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.6	0.4
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.8	0.5
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	5.7	4.6
Indirect consumer | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	6.5	8.4
Indirect consumer | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	1.7	2.6
Indirect consumer | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.1	0.7
Indirect consumer | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	8.3	11.7
Indirect consumer | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	463.6	709.4
Indirect consumer | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.6	0.5
Indirect consumer | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.4	2.0
Indirect consumer | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.4	3.4
Indirect consumer | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.4	1.1
Indirect consumer | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.8	0.4
Indirect consumer | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	1.0	1.1
Indirect consumer | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Indirect consumer | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Other consumer
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	0.7	0.6
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	47.8	46.9
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	25.8	25.5
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	13.4	18.7
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	10.0	10.1
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	5.3	4.2
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	5.1	5.3
Financing Receivable, Excluding Accrued Interest, Revolving	23.9	23.2
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.2	0.1
Financing Receivable, Allowance for Credit Loss, Writeoff	4.4	3.9
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	131.5	134.0
Other consumer | Performing Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	47.7	46.5
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	25.6	25.4
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	13.3	18.5
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	9.9	10.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	5.3	4.2
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	5.0	5.2
Financing Receivable, Excluding Accrued Interest, Revolving	23.9	23.2
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.1	0.1
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	130.8	133.1
Other consumer | Nonperforming Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	0.1	0.4
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	0.2	0.1
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0.1	0.2
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0.1	0.1
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.1	0.1
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.1	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	0.7	0.9
Other consumer | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.9	0.6
Other consumer | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.2	0.2
Other consumer | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.3
Other consumer | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	1.1	1.1
Other consumer | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	129.7	132.3
Other consumer | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.4	0.2
Other consumer | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	1.2	0.6
Other consumer | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.6	0.9
Other consumer | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.2	0.2
Other consumer | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.1	0.0
Other consumer | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	1.9	1.8
Other consumer | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.1
Other consumer | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.1
Credit card consumer
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans		0.0
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Revolving		77.6
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan		0.0
Financing Receivable, Allowance for Credit Loss, Writeoff	3.5	3.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	0.0	77.6
Credit card consumer | Performing Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Revolving		76.6
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan		0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		76.6
Credit card consumer | Nonperforming Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year		0.0
Financing Receivable, Excluding Accrued Interest, Revolving		1.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan		0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process		1.0
Credit card consumer | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process		0.7
Credit card consumer | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process		0.5
Credit card consumer | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process		1.0
Credit card consumer | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process		2.2
Credit card consumer | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process		75.4
Credit card consumer | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Credit card consumer | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Credit card consumer | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Credit card consumer | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Credit card consumer | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Credit card consumer | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Credit card consumer | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	3.5	3.0
Credit card consumer | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Total consumer loans
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	6.3	4.5
Financing Receivable, Allowance for Credit Loss, Writeoff	17.5	15.4	14.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	609.0	936.6
Total consumer loans | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	7.4	9.7
Total consumer loans | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	1.9	3.3
Total consumer loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.1	2.0
Total consumer loans | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	9.4	15.0
Total consumer loans | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	593.3	917.1
Total consumer loans | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	1.0	0.7
Total consumer loans | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	3.6	2.6
Total consumer loans | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	3.0	4.3
Total consumer loans | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.6	1.3
Total consumer loans | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.9	0.4
Total consumer loans | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.9	2.9
Total consumer loans | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	3.5	3.1
Total consumer loans | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.1
Commercial Portfolio Segment [Member]
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	21.7	33.5
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	321.9	473.5
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	325.9	373.9
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	239.0	392.9
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	299.1	324.2
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	233.8	173.7
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	261.5	259.2
Financing Receivable, Excluding Accrued Interest, Revolving	672.3	821.6
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	6.1	10.4
Financing Receivable, Allowance for Credit Loss, Writeoff	8.9	59.4	3.4
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	2,359.6	2,829.4
Commercial Portfolio Segment [Member] | Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	15.0	22.2
Commercial Portfolio Segment [Member] | Pass
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	301.3	438.8
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	287.8	353.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	228.4	375.9
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	277.2	316.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	225.5	165.9
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	260.4	255.2
Financing Receivable, Excluding Accrued Interest, Revolving	593.3	767.3
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	4.6	8.9
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	2,178.5	2,681.0
Commercial Portfolio Segment [Member] | Substandard
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	9.3	30.8
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	13.4	5.4
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	6.8	12.8
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	14.2	5.5
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	4.7	1.6
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.7	3.4
Financing Receivable, Excluding Accrued Interest, Revolving	26.2	35.2
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	1.3	1.5
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	76.6	96.2
Commercial Portfolio Segment [Member] | Other Assets Especial Mentioned
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	6.4	3.9
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	23.7	13.9
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	3.3	3.1
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	1.4	2.2
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	3.2	6.2
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.4	0.6
Financing Receivable, Excluding Accrued Interest, Revolving	52.8	19.1
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.2	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	91.4	49.0
Commercial Portfolio Segment [Member] | Doubtful
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	4.9	0.0
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	1.0	1.6
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0.5	1.1
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	6.3	0.5
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.4	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	13.1	3.2
Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	3.1	11.2
Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	4.9	3.0
Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.9	0.6
Commercial Portfolio Segment [Member] | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	8.9	14.8
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	2,329.0	2,781.1
Commercial Portfolio Segment [Member] | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.7	21.6
Commercial Portfolio Segment [Member] | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	1.0	2.2
Commercial Portfolio Segment [Member] | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.5	1.1
Commercial Portfolio Segment [Member] | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	1.3	0.3
Commercial Portfolio Segment [Member] | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.3	0.1
Commercial Portfolio Segment [Member] | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.4	0.1
Commercial Portfolio Segment [Member] | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.5	31.1
Commercial Portfolio Segment [Member] | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.2	2.9
Agricultural Financing Receivable [Member]
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	24.6	20.9
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	97.6	136.7
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	30.0	61.4
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	21.2	40.4
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	28.4	16.8
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	7.9	14.9
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	5.1	5.9
Financing Receivable, Excluding Accrued Interest, Revolving	315.4	410.4
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	14.6	1.4
Financing Receivable, Allowance for Credit Loss, Writeoff	5.0	0.3	$ 0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	520.2	687.9
Agricultural Financing Receivable [Member] | Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	23.4	20.4
Agricultural Financing Receivable [Member] | Pass
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	80.2	109.6
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	25.0	34.1
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	15.1	39.4
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	25.6	16.6
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	7.5	13.5
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	4.7	5.8
Financing Receivable, Excluding Accrued Interest, Revolving	277.8	379.4
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	5.6	1.1
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	441.5	599.5
Agricultural Financing Receivable [Member] | Substandard
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	3.3	4.1
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	3.6	25.9
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	0.8	0.1
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0.8	0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.0	0.5
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.4	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	9.6	25.9
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	1.0	0.3
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	19.5	56.8
Agricultural Financing Receivable [Member] | Other Assets Especial Mentioned
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	7.9	4.1
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	1.4	1.4
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	2.7	0.9
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	2.0	0.2
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.4	0.9
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.0	0.1
Financing Receivable, Excluding Accrued Interest, Revolving	26.0	5.1
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	40.4	12.7
Agricultural Financing Receivable [Member] | Doubtful
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	6.2	18.9
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	2.6	0.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	0.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving	2.0	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	8.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	18.8	18.9
Agricultural Financing Receivable [Member] | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.5	2.4
Agricultural Financing Receivable [Member] | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.6	2.8
Agricultural Financing Receivable [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.0
Agricultural Financing Receivable [Member] | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	1.1	5.2
Agricultural Financing Receivable [Member] | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	494.5	661.8
Agricultural Financing Receivable [Member] | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.0	0.0
Agricultural Financing Receivable [Member] | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	2.9	0.0
Agricultural Financing Receivable [Member] | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Agricultural Financing Receivable [Member] | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.3
Agricultural Financing Receivable [Member] | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Agricultural Financing Receivable [Member] | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Agricultural Financing Receivable [Member] | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.1	0.0
Agricultural Financing Receivable [Member] | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Other, including overdrafts
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	1.7	1.6
Other, including overdrafts | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.0
Other, including overdrafts | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.0
Other, including overdrafts | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.0
Other, including overdrafts | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	0.0	0.0
Other, including overdrafts | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	1.7	1.6
Loans held for investment
Loans and Leases Receivable Recorded Investment, Past Due
Non-accrual Loans	133.5	138.3
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	15,209.9	17,856.0
Loans held for investment | Financing Receivables, 30 to 59 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	67.0	46.1
Loans held for investment | Financing Receivables, 60 to 89 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	15.7	17.4
Loans held for investment | Financing Receivables, Equal to Greater than 90 Days Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	1.4	3.0
Loans held for investment | Financial Asset, Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	84.1	66.5
Loans held for investment | Financial Asset, Not Past Due
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Loan in Process	14,992.3	17,651.2
Residential Real Estate
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	46.0	23.9
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	36.6	75.3
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	72.5	414.0
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	399.0	489.4
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	451.4	441.3
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	601.6	257.4
Financing Receivable, Excluding Accrued Interest, Revolving	494.3	477.8
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	7.4	12.5
Financing Receivable, Allowance for Credit Loss, Writeoff	1.4	1.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	2,108.8	2,191.6
Residential Real Estate | Collateral
Loans and Leases Receivable Recorded Investment, Past Due
Loans and Leases Receivable, Collateral for Secured Borrowings	2.6	2.7
Residential Real Estate | Performing Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	45.6	22.6
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	35.5	73.8
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	71.5	409.1
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	394.6	487.3
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	449.2	440.2
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	596.8	252.5
Financing Receivable, Excluding Accrued Interest, Revolving	494.2	477.8
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	7.4	12.5
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	2,094.8	2,175.8
Residential Real Estate | Nonperforming Financial Instruments
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year	0.4	1.3
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year	1.1	1.5
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year	1.0	4.9
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year	4.4	2.1
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year	2.2	1.1
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year	4.8	4.9
Financing Receivable, Excluding Accrued Interest, Revolving	0.1	0.0
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan	0.0	0.0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	14.0	15.8
Residential Real Estate | Year One, Originated, Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.1	0.0
Residential Real Estate | Year Two, Originated, Fiscal Year Before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.5	0.2
Residential Real Estate | Year Three, Originated, Two Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.1	0.2
Residential Real Estate | Year Four, Originated, Three Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.4	0.1
Residential Real Estate | Year Five, Originated, Four Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.2	0.3
Residential Real Estate | Originated, More than Five Years before Current Fiscal Year
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.1	0.2
Residential Real Estate | Revolving
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	0.0	0.0
Residential Real Estate | Revolving, Converted to Term
Loans and Leases Receivable Recorded Investment, Past Due
Financing Receivable, Allowance for Credit Loss, Writeoff	$ 0.0	$ 0.0