Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The Corporation’s unaudited consolidated financial statements have been prepared in accordance with U.S. GAAP for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete consolidated financial statements. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations for the interim periods presented have been included. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Amounts subject to significant estimates are items such as the allowance for credit losses, lending related commitments and the related unfunded commitment reserve, the fair value of financial instruments, other-than-temporary impairments of investment securities, and the valuations of goodwill, intangible assets, and servicing assets. These unaudited consolidated financial statements should be read in conjunction with the Corporation’s filings with the SEC (including our Annual Report on Form 10-K for the year ended December 31, 2025), subsequently filed quarterly reports on Form 10-Q and current reports on Form 8-K that update or provide information in addition to the information included in Form 10-K and Form 10-Q filings, if any. Certain prior period amounts have been reclassified to conform with current period presentation. Reclassifications had no effect on net income or stockholders’ equity. Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results for the year ending December 31, 2026 or for any other period.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Pronouncements Adopted as of March 31, 2026: The following pronouncements were adopted in 2026, but did not have a material impact on our consolidated financial statements. FASB ASU 2024-04, "Debt with Conversion and Other Options (Subtopic 470-20)" The amendments in the ASU clarify the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion. The amendments in the ASU are effective for all entities for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. The adoption of this guidance did not have a material impact on the Corporation's consolidated financial statements. Pronouncements Not Yet Effective as of March 31, 2026: FASB ASU No. 2023-06, "Disclosure Improvements: Codification Amendments in Response to the SEC's Disclosure Update and Simplification Initiative". This ASU amends the disclosure or presentation requirements related to various subtopics in the ASC. The amendments are expected to clarify or improve disclosure and presentation requirements of a variety of Codification Topics, allow users to more easily compare entities subject to the SEC's existing disclosures with those entities that were not previously subject to the requirements, and align the requirements in the Codification with the SEC's regulations. For entities subject to the SEC's existing disclosure requirements the effective date for each amendment will be the date on which the SEC removes that related disclosure from its rules. For all other entities, the amendments will be effective two years later. However, if by June 30, 2027, the SEC has not removed the related disclosure from its regulations, the amendments will be removed from the Codification and not become effective for any entity. FASB ASU 2024-03, "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)" This amendment requires enhanced disaggregation of certain expense categories within the income statement to provide more detailed information about the nature and function of expenses. The objective is to improve the transparency and usefulness of financial statements for users by offering greater insight into the components of operating expenses. The amendments in this update are effective for fiscal years beginning after December 15, 2026. These changes may be applied prospectively or retroactively. Early adoption is permitted. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures. FASB ASU 2025-01, "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date" This amendment addresses questions that were raised regarding the effective date of ASU 2024-03 for public business entities with non-calendar year ends. The amendment clarifies that all public business entities are required to adopt the guidance in annual reporting periods beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures. FASB ASU 2025-06, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40).” This update modernizes internal-use software guidance to apply regardless of the method used to develop software. The amendment will be effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. Early adoption is permitted as of the beginning of an annual reporting period. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures. FASB ASU 2025-07, “Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606) – Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract” This update refines the scope of Topic 815 to clarify which contracts are subject to derivative accounting and clarifies guidance under Topic 606 for share-based noncash consideration from a customer in revenue contracts. The amendments in this update are effective for annual reporting periods beginning after December 15, 2026. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures. FASB ASU 2025-08, “Financial Instruments - Credit Losses (Topic 326): Purchased Loans”. This ASU changes the accounting for certain acquired loans by requiring entities to apply a “gross-up” approach at acquisition for purchased seasoned loans, recognizing an allowance for credit losses as part of the acquisition accounting rather than through a post-acquisition provision. The amendments are to be applied prospectively to loans acquired on or after the initial application date. The ASU will be effective for the annual reporting period beginning after December 15, 2026. Early adoption is permitted. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures. FASB ASU 2025-11, “Interim Reporting (Topic 270) Narrow-Scope Improvements.” This ASU clarifies when Topic 270 applies and enhances usability by (among other changes) specifying the form/content of interim financial statements, providing a comprehensive list of required interim disclosures, and introducing a disclosure principle for material events since the last annual period-without intending to significantly expand or reduce interim disclosure requirements. The amendments in this update are effective for the annual reporting period beginning after December 15, 2027. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures. FASB ASU 2025-12, “Codification Improvements.” This ASU is part of the FASB's standing "evergreen" project and makes a broad set of technical corrections, clarifications, and other minor improvements across many Topics to make the Codification easier to understand and apply. The amendments in this update are effective for the annual reporting period beginning after December 15, 2026, and interim periods within that fiscal year. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.

Summary of Significant Accounting Policies (Policies)

Basis of Presentation

The Corporation’s unaudited consolidated financial statements have been prepared in accordance with U.S. GAAP for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete consolidated financial statements. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations for the interim periods presented have been included.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Amounts subject to significant estimates are items such as the allowance for credit losses, lending related commitments and the related unfunded commitment reserve, the fair value of financial instruments, other-than-temporary impairments of investment securities, and the valuations of goodwill, intangible assets, and servicing assets.

These unaudited consolidated financial statements should be read in conjunction with the Corporation’s filings with the SEC (including our Annual Report on Form 10-K for the year ended December 31, 2025), subsequently filed quarterly reports on Form 10-Q and current reports on Form 8-K that update or provide information in addition to the information included in Form 10-K and Form 10-Q filings, if any.

Certain prior period amounts have been reclassified to conform with current period presentation. Reclassifications had no effect on net income or stockholders’ equity. Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results for the year ending December 31, 2026 or for any other period.

Recent Accounting Pronouncements

Pronouncements Adopted as of March 31, 2026:

The following pronouncements were adopted in 2026, but did not have a material impact on our consolidated financial statements.

FASB ASU 2024-04, "Debt with Conversion and Other Options (Subtopic 470-20)"

The amendments in the ASU clarify the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion. The amendments in the ASU are effective for all entities for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. The adoption of this guidance did not have a material impact on the Corporation's consolidated financial statements.

Pronouncements Not Yet Effective as of March 31, 2026:

FASB ASU No. 2023-06, "Disclosure Improvements: Codification Amendments in Response to the SEC's Disclosure Update and Simplification Initiative".

This ASU amends the disclosure or presentation requirements related to various subtopics in the ASC. The amendments are expected to clarify or improve disclosure and presentation requirements of a variety of Codification Topics, allow users to more easily compare entities subject to the SEC's existing disclosures with those entities that were not previously subject to the requirements, and align the requirements in the Codification with the SEC's regulations. For entities subject to the SEC's existing disclosure requirements the effective date for each amendment will be the date on which the SEC removes that related disclosure from its rules. For all other entities, the amendments will be effective two years later. However, if by June 30, 2027, the SEC has not removed the related disclosure from its regulations, the amendments will be removed from the Codification and not become effective for any entity.

FASB ASU 2024-03, "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)"

This amendment requires enhanced disaggregation of certain expense categories within the income statement to provide more detailed information about the nature and function of expenses. The objective is to improve the transparency and usefulness of financial statements for users by offering greater insight into the components of operating expenses. The amendments in this update are effective for fiscal years beginning after December 15, 2026. These changes may be applied prospectively or retroactively. Early adoption is permitted. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.

FASB ASU 2025-01, "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date"

This amendment addresses questions that were raised regarding the effective date of ASU 2024-03 for public business entities with non-calendar year ends. The amendment clarifies that all public business entities are required to adopt the guidance in annual reporting periods beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.

FASB ASU 2025-06, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40).”

This update modernizes internal-use software guidance to apply regardless of the method used to develop software. The amendment will be effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. Early adoption is permitted as of the beginning of an annual reporting period. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.

FASB ASU 2025-07, “Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606) – Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract”

This update refines the scope of Topic 815 to clarify which contracts are subject to derivative accounting and clarifies guidance under Topic 606 for share-based noncash consideration from a customer in revenue contracts. The amendments in this update are effective for annual reporting periods beginning after December 15, 2026. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.

FASB ASU 2025-08, “Financial Instruments - Credit Losses (Topic 326): Purchased Loans”.

This ASU changes the accounting for certain acquired loans by requiring entities to apply a “gross-up” approach at acquisition for purchased seasoned loans, recognizing an allowance for credit losses as part of the acquisition accounting rather than through a post-acquisition provision. The amendments are to be applied prospectively to loans acquired on or after the initial application date. The ASU will be effective for the annual reporting period beginning after December 15, 2026. Early adoption is permitted. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.

FASB ASU 2025-11, “Interim Reporting (Topic 270) Narrow-Scope Improvements.”

This ASU clarifies when Topic 270 applies and enhances usability by (among other changes) specifying the form/content of interim financial statements, providing a comprehensive list of required interim disclosures, and introducing a disclosure principle for material events since the last annual period-without intending to significantly expand or reduce interim disclosure requirements. The amendments in this update are effective for the annual reporting period beginning after December 15, 2027. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.

FASB ASU 2025-12, “Codification Improvements.”

This ASU is part of the FASB's standing "evergreen" project and makes a broad set of technical corrections, clarifications, and other minor improvements across many Topics to make the Codification easier to understand and apply. The amendments in this update are effective for the annual reporting period beginning after December 15, 2026, and interim periods within that fiscal year. The Corporation is currently evaluating the impact of such amendments to the consolidated financial statements and related disclosures.