Goodwill and Core Deposit Intangibles (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Activity of Identifiable Core Deposit Intangibles

Other intangible assets are comprised of core deposit intangibles (“CDI”) and other customer relationship intangibles (“OCRI”) and amounted to the following at December 31, 2025 and 2024:

December 31, 2025	CDI		OCRI		Total
Gross other intangible assets, at January 1, 2025	$	154.7	$	22.8	$	177.5
Accumulated amortization	(116.9)		(7.3)		(124.2)
Net other intangible assets, end of period	$	37.8	$	15.5	$	53.3
December 31, 2024
Gross other intangible assets, at January 1, 2024	$	154.7	$	22.8	$	177.5
Accumulated amortization	(105.2)		(5.5)		(110.7)
Net other intangible assets, end of period	$	49.5	$	17.3	$	66.8

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table provides the estimated aggregate future amortization expense of other intangible assets:

Years ending December 31,	CDI		OCRI		Total
2026	$	11.2	$	1.9	$	13.1
2027	8.3		1.9		10.2
2028	5.4		1.9		7.3
2029	4.5		1.9		6.4
2030	4.2		1.9		6.1
Thereafter	4.2		6.0		10.2
Total	$	37.8	$	15.5	$	53.3