Derivatives and Hedging Activities - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Derivative Assets (included in other assets on the consolidated balance sheets):
Derivative Asset, Notional Amount	$ 1,340.5	$ 1,420.5
Derivative Asset, Estimated Fair Value	29.1	44.9
Derivative Liabilities (included in accounts payable and accrued expenses on the consolidated balance sheets):
Derivative Liabilities, Notional Amount	1,718.6	2,107.0
Derivative Liabilities, Estimated Fair Value	88.9	133.8
Not Designated as Hedging Instrument \| Interest rate swap contracts
Derivative Assets (included in other assets on the consolidated balance sheets):
Derivative Asset, Notional Amount	1,330.7	1,415.4
Derivative Asset, Estimated Fair Value	29.1	44.9
Derivative Liabilities (included in accounts payable and accrued expenses on the consolidated balance sheets):
Derivative Liabilities, Notional Amount	1,330.7	1,415.4
Derivative Liabilities, Estimated Fair Value	88.6	130.0
Not Designated as Hedging Instrument \| Interest rate lock commitments
Derivative Assets (included in other assets on the consolidated balance sheets):
Derivative Asset, Notional Amount	4.2	2.7
Derivative Asset, Estimated Fair Value	0.0	0.0
Not Designated as Hedging Instrument \| Forward loan sales contracts
Derivative Assets (included in other assets on the consolidated balance sheets):
Derivative Asset, Notional Amount	5.6	2.4
Designated as Hedging Instrument [Member] \| Interest rate swap contracts
Derivative Assets (included in other assets on the consolidated balance sheets):
Derivative Asset, Notional Amount	0.0	0.0
Derivative Asset, Estimated Fair Value	0.0	0.0
Derivative Liabilities (included in accounts payable and accrued expenses on the consolidated balance sheets):
Derivative Liabilities, Notional Amount	0.0	300.0
Derivative Liabilities, Estimated Fair Value	$ 0.0	$ 2.8