Derivatives and Hedging Activities (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) instrument counterparty	Dec. 31, 2023 USD ($) instrument
Derivative [Line Items]
Amount of collateral	$ 0	$ 0
Derivative assets	117,452	105,164
Derivative liabilities	103,314	90,834
Derivative instruments in accumulated other comprehensive income (loss) reclassified to interest expense	11,100
Notional amount	$ 375,000	455,000
Number of counterparties | counterparty	4
Derivatives Not Designated as a Hedging Instruments
Derivative [Line Items]
Notional amount		$ 89,469
Derivatives Not Designated as a Hedging Instruments | Interest rate products
Derivative [Line Items]
Number of derivative instruments held | instrument	152	154
Derivative notional amount	$ 2,230,000	$ 2,300,000
Notional amount	$ 1,117,124	1,152,200
Derivatives Not Designated as a Hedging Instruments | Credit contracts
Derivative [Line Items]
Number of derivative instruments held | instrument	12
Derivative notional amount	$ 188,400	142,800
Amount of collateral	70
Derivative assets	9	17
Derivative liabilities	5	8
Notional amount	$ 142,260	$ 96,462
Designated as Hedging Instrument
Derivative [Line Items]
Number of outstanding derivatives | instrument	7	9
Designated as Hedging Instrument | Interest rate products
Derivative [Line Items]
Notional amount	$ 0	$ 125,000