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v3.25.1

Regulatory Capital (Details) $ in Millions | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
--- | --- | ---
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Retained Earnings (Accumulated Deficit) | $ 1,168.6 | $ 1,166.4
Total risk-based capital: |  |
Actual, Amount | $ 2,981.3 | $ 2,962.8
Actual, Ratio | 0.1493 | 0.1438
Minimum Required for Capital Adequacy Purposes, Amount | $ 1,597.2 | $ 1,647.8
Minimum Required for Capital Adequacy Purposes, Ratio | 0.0800 | 0.0800
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Amount | $ 2,096.3 | $ 2,162.8
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Ratio | 10.50% | 10.50%
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Amount | $ 1,996.5 | $ 2,059.8
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Ratio | 0.1000 | 0.1000
Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum | $ 898.4 | $ 926.9
Tier 1 risk-based capital: |  |
Actual, Amount | $ 2,502.6 | $ 2,504.0
Actual, Ratio | 0.1253 | 0.1216
Minimum Required for Capital Adequacy Purposes, Amount | $ 1,197.9 | $ 1,235.9
Minimum Required for Capital Adequacy Purposes, Ratio | 0.0600 | 0.0600
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Amount | $ 1,697.0 | $ 1,750.8
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Ratio | 8.50% | 8.50%
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Amount | $ 1,597.2 | $ 1,647.8
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Ratio | 0.0800 | 0.0800
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum | 0.0650 | 0.0650
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum | 0.0450 | 0.0450
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual | 0.1253 | 0.1216
Banking Regulation, Common Equity Tier One Risk-Based Capital, Well Capitalized, Minimum | $ 1,297.7 | $ 1,338.8
Banking Regulation, Common Equity Tier One Risk-Based Capital, Actual | 2,502.6 | 2,504.0
Common equity tier 1 risk-based capital: |  |
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Amount | $ 1,397.6 | $ 1,441.8
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Ratio | 7.00% | 7.00%
Leverage capital ratio: |  |
Actual, Amount | $ 2,502.6 | $ 2,504.0
Actual, Ratio | 0.0906 | 0.0871
Banking Regulation, Tier One Leverage Capital, Capital Adequacy, Minimum | $ 1,104.6 | $ 1,149.4
Capital Adequacy Purposes and Conservation Buffer, Ratio | 0.0400 | 0.0400
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Amount | $ 1,380.8 | $ 1,436.8
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Ratio | 0.0500 | 0.0500
FIB |  |
Total risk-based capital: |  |
Actual, Amount | $ 2,713.4 | $ 2,691.5
Actual, Ratio | 0.1363 | 0.1310
Minimum Required for Capital Adequacy Purposes, Amount | $ 1,593.2 | $ 1,644.1
Minimum Required for Capital Adequacy Purposes, Ratio | 0.0800 | 0.0800
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Amount | $ 2,091.0 | $ 2,157.9
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Ratio | 10.50% | 10.50%
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Amount | $ 1,991.5 | $ 2,055.2
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Ratio | 0.1000 | 0.1000
Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum | $ 896.2 | $ 924.8
Tier 1 risk-based capital: |  |
Actual, Amount | $ 2,492.2 | $ 2,490.3
Actual, Ratio | 0.1251 | 0.1212
Minimum Required for Capital Adequacy Purposes, Amount | $ 1,194.9 | $ 1,233.1
Minimum Required for Capital Adequacy Purposes, Ratio | 0.0600 | 0.0600
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Amount | $ 1,692.7 | $ 1,746.9
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Ratio | 8.50% | 8.50%
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Amount | $ 1,593.2 | $ 1,644.1
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Ratio | 0.0800 | 0.0800
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum | 0.0650 | 0.0650
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum | 0.0450 | 0.0450
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual | 0.1251 | 0.1212
Banking Regulation, Common Equity Tier One Risk-Based Capital, Well Capitalized, Minimum | $ 1,294.4 | $ 1,335.8
Banking Regulation, Common Equity Tier One Risk-Based Capital, Actual | 2,492.2 | 2,490.3
Common equity tier 1 risk-based capital: |  |
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Amount | $ 1,394.0 | $ 1,438.6
For Capital Adequacy Purposes Plus Capital Conservation Buffer, Ratio | 7.00% | 7.00%
Leverage capital ratio: |  |
Actual, Amount | $ 2,492.2 | $ 2,490.3
Actual, Ratio | 0.0904 | 0.0868
Banking Regulation, Tier One Leverage Capital, Capital Adequacy, Minimum | $ 1,102.7 | $ 1,147.5
Capital Adequacy Purposes and Conservation Buffer, Ratio | 0.0400 | 0.0400
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Amount | $ 1,378.4 | $ 1,434.4
Minimum to Be Well Capitalized Under Prompt Corrective Action Requirements, Ratio | 0.0500 | 0.0500

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- Definition Amount of minimum Tier 1 risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 + Details
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- Definition Ratio of minimum Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 + Details
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