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Subordinated Debentures Held by Subsidiary Trusts (Tables)
12 Months Ended
Dec. 31, 2025
Subordinated Borrowings [Abstract]  
Schedule of Subordinated Borrowing
A summary of Subordinated Debenture issuances follows:
December 31, 2025December 31, 2024
Issuance
Interest Rate1
Maturity DateAmount
Common Shares2
Amount
Common Shares 2
Trust INovember 20076.73%December 15, 2037$15.5 $0.5 $15.5 $0.5 
Trust IIOctober 20076.50January 1, 203810.3 0.3 10.3 0.3 
Trust IIIDecember 20076.38December 15, 203720.6 0.6 20.6 0.6 
Trust IVDecember 20076.95April 1, 203815.5 0.5 15.5 0.5 
Trust VJanuary 20087.00April 1, 203810.3 0.3 10.3 0.3 
Trust VIJanuary 20087.00April 1, 203810.3 0.3 10.3 0.3 
Trust VIIJune 20055.65June 30, 20355.2 0.2 5.2 0.2 
Trust VIIIMarch 20065.45March 15, 203630.9 0.9 30.9 0.9 
Trust IXJune 20055.83June 15, 20352.1 0.1 2.1 0.1 
Trust XDecember 20036.82December 17, 203323.1 0.7 23.1 0.7 
Trust XIDecember 2002January 7, 2033— — 5.2 0.2 
Trust XIISeptember 2003October 8, 2033— — 7.2 0.2 
Trust XIIIDecember 20065.88March 1, 20375.3 0.3 5.3 0.3 
Trust XIVJuly 20075.90October 1, 20372.2 0.2 2.2 0.2 
Total subordinated debentures payable$151.3 $4.9 $163.7 $5.3 
Less: fair value adjustment 3
(1.5)(0.6)
Total subordinated debentures payable, net of fair value adjustments$149.8 $163.1 
1 Interest rates as of December 31, 2025
2 Common shares on subordinated debentures are included in other assets on the consolidated balance sheets
3 Adjustment reflects the fair value adjustments related to the subordinated deferrable interest debentures assumed as part of the Northwest and Great Western acquisitions.