Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Millions		9 Months Ended
	Oct. 22, 2024 USD ($) $ / shares shares	Sep. 30, 2025 Segment $ / shares	Dec. 31, 2024 $ / shares
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock, par value | $ / shares		$ 0.01	$ 0.01
Number of reporting segments | Segment		2
Accounting Standards Update 2023-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted		true
Change in accounting principle, accounting standards update, adoption date		Dec. 15, 2023
Change in accounting principle, accounting standards update, immaterial effect		true
Accounting Standards Update 2023-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted		true
Change in accounting principle, accounting standards update, adoption date		Dec. 15, 2024
Change in accounting principle, accounting standards update, immaterial effect		true
Common Stock [Member] | Bank Employee Stock Ownership Plan [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock, par value | $ / shares	$ 0.01
Sale of stock | shares	19,837,500
Gross offering proceeds	$ 198.4
Offering price per share | $ / shares	$ 10
Cost of conversion and issuance of common stock	$ 4.7
Purchased shares | shares	1,587,000
Percentage of total shares issued	8.00%
Cost of shares purchased	$ 17.9
Net offering proceeds contributed as additional capital	$ 88.4