The Company is party to off-balance sheet financial instruments in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include loan commitments, standby and commercial letters of credit, and loan level derivatives. According to GAAP, these financial instruments are not recorded in the financial statements until they are funded or related fees are incurred or received.

The contract amounts reflect the extent of the involvement the Company has in particular classes of these instruments. Such commitments involve, to varying degrees, elements of credit risk and interest-rate risk in excess of the amount recognized in the consolidated balance sheets. The Company's exposure to credit loss in the event of non-performance by the counterparty is represented by the fair value of the instruments. The Company uses the same policies in making commitments and conditional obligations as it does for on-balance sheet instruments.


	At March 31, 2026		At December 31, 2025
	(In Thousands)
Financial instruments whose contract amounts represent credit risk:
Commitments to originate loans and leases:
Commercial real estate	$	222,501	$	99,457
Commercial	136,295		137,923
Residential mortgage	7,100		23,115
Home equity	10,926		9,022
Unadvanced portion of loans and leases	2,254,538		2,483,239
Unused lines of credit:
Home equity	1,177,379		1,175,702
Other consumer	176,127		148,358
Other commercial	—		—
Unused letters of credit:
Financial standby letters of credit	9,971		10,440
Performance standby letters of credit	54,996		25,025
Commercial and similar letters of credit	4,499		58,074
Interest rate derivatives (Notional principal amounts):	149,679		192,468
Loan level derivatives (Notional principal amounts):
Receive fixed, pay variable	3,500,284		3,505,840
Pay fixed, receive variable	3,504,381		3,505,840
Risk participation-out agreements	681,207		670,834
Risk participation-in agreements	147,069		153,185
Foreign exchange contracts (Notional amounts):
Buys foreign currency, sells U.S. currency	2,965		2,785
Sells foreign currency, buys U.S. currency	2,978		2,800

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require the payment of a fee by the customer. Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer's creditworthiness on a case-by-case basis. The amount of collateral obtained, if any, is based on management's credit evaluation of the borrower.

Standby and commercial letters of credit are conditional commitments issued by the Company to guarantee performance of a customer to a third party. These standby and commercial letters of credit are primarily issued to support the financing needs of the Company's commercial customers. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers.

From time to time, the Company enters into loan level derivatives, risk participation agreements or foreign exchange contracts with commercial customers and third-party financial institutions. These derivatives allow the Company to offer long-term fixed-rate commercial loans while mitigating the interest-rate or foreign exchange risk of holding those loans. In a loan level derivative transaction, the Company lends to a commercial customer on a floating-rate basis and then enters into a loan level derivative with that customer. Concurrently, the Company enters into offsetting swaps with a third-party financial institution, effectively minimizing its net interest-rate risk exposure resulting from such transactions. The fair value of these derivatives are presented in Note 8.

The Company leases certain office space under various noncancellable operating leases as well as other assets. These leases have terms ranging from 1 year to over 18 years. Certain leases contain renewal options and escalation clauses which can increase rental expenses based principally on the consumer price index and fair market rental value provisions. All of the Company's current outstanding leases are classified as operating leases.

The Company considered the following criteria when determining whether a contract contains a lease, the existence of an identifiable asset and the right to obtain substantially all of the economic benefits from use of the asset through the period. The Company uses the FHLB classic advance rates available as of the lease's start dates as the discount rate to determine the net present value of the remaining lease payments.


	Three Months Ended March 31, 2026		Three Months Ended March 31, 2025
	(In Thousands)
The components of lease expense was as follows:
Operating lease cost	$	4,948	$	2,191





Supplemental cash flow information related to leases was as follows:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	4,950	$	2,256


Right-of-use assets obtained in exchange for new lease obligations:
Operating leases assets	$	1,663	$	—
Operating leases liabilities	1,663		—


	At March 31, 2026		At December 31, 2025
	(In Thousands)
Supplemental balance sheet information related to leases was as follows:
Operating Leases
Operating lease right-of-use assets	$	84,851	$	82,817


Operating lease liabilities	92,820		90,713











Weighted Average Remaining Lease Term
Operating leases	7.96		7.95


Weighted Average Discount Rate
Operating leases	4.2%		4.2%


	Minimum Rental Payments
	March 31, 2026
	(In Thousands)

Remainder of 2026	$	14,351
Year ending:
2027	18,152
2028	15,689
2029	12,757
2030	10,247
2031	—
Thereafter	37,254
Total	$	108,450
Less imputed interest	(15,630)
Present value of lease liability	$	92,820

Certain leases contain escalation clauses for real estate taxes and other expenditures, which are not included above. The total real estate taxes were $1.0 million and $0.6 million for the three months ended March 31, 2026 and 2025, respectively. Total other expenditures were $0.5 million and $0.2 million for the three months ended March 31, 2026 and 2025, respectively. Total rental expense was $4.9 million and $2.2 million for the three months ended March 31, 2026 and 2025, respectively.

In the normal course of business, there are various outstanding legal proceedings. In the opinion of management, after consulting with legal counsel, the consolidated financial position and results of operations of the Company are not expected to be affected materially by the outcome of such proceedings.