Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

Number of new stock issued during the period.

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+ Details

Earnings Per Common Share - Additional Information (Detail) - shares	Feb. 28, 2025	Sep. 30, 2026	Dec. 31, 2025
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Common stock, shares outstanding		95,984,127	96,067,559
Premier Financial Corporation [Member]
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Issuance of common stock, net of issuance costs, shares	28,738,104
Common stock, shares outstanding	20,316,670
Premier Financial Corporation [Member] \| Treasury Stock [Member]
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Issuance of common stock, net of issuance costs, shares	8,421,434