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Derivative Instruments and Hedge Activities - Summary of Derivative Financial Instruments and Classification on Consolidated Statements of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Jul. 01, 2023
Derivatives Fair Value [Line Items]
Notional Amount	$ 1,518,888	$ 1,359,728
Other Assets	44,401	56,923
Other Liabilities	(17,785)	(19,345)
Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	650,000
Other Assets	26,529
Other Liabilities	52
Interest Rate Swap \| Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	42,000
Other Assets	3,500
Other Interest Rate Derivatives
Derivatives Fair Value [Line Items]
Notional Amount	851,742
Other Assets	17,865
Other Liabilities	(17,721)
Other Interest Rate Derivatives \| Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	450,000
Derivatives Designated as Hedging Instruments \| Interest Rate Swap \| Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	650,000	650,000
Other Assets	26,529	37,475
Other Liabilities	52	0
Derivatives Not Designated As Hedging Instruments \| Other Credit Derivatives
Derivatives Fair Value [Line Items]
Notional Amount	17,146	3,602
Other Assets	7	1
Other Liabilities	(12)	0
Derivatives Not Designated As Hedging Instruments \| Interest Rate Swap
Derivatives Fair Value [Line Items]
Notional Amount			$ 67,700
Derivatives Not Designated As Hedging Instruments \| Other Interest Rate Derivatives
Derivatives Fair Value [Line Items]
Notional Amount	851,742	706,126
Other Assets	17,865	19,447
Other Liabilities	$ (17,721)	$ (19,345)