Securities Securities (Available for sale securities in continuous unrealized loss position) (Details) $ in Thousands	Jun. 30, 2024 USD ($) holding	Dec. 31, 2023 USD ($) holding
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	168	163
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 1,624	$ 1,620
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(8)	(18)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,217,099	1,328,959
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(124,210)	(125,618)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,218,723	1,330,579
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 124,218	$ 125,636
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	122	115
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 598	$ 1,091
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(4)	(11)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	263,528	273,447
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(38,570)	(37,235)
Debt Securities, Available-for-sale, Unrealized Loss Position	264,126	274,538
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 38,574	$ 37,246
Collateralized Debt Obligations [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	12	12
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 1,026	$ 339
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(4)	(2)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	29,906	31,682
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(2,501)	(2,528)
Debt Securities, Available-for-sale, Unrealized Loss Position	30,932	32,021
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 2,505	$ 2,530
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	1	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 190
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(5)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	190	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(5)	0
Debt Securities, Available-for-sale, Unrealized Loss Position	190	190
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 5	$ 5
Pooled trust preferred securities issued by banks and insurers
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	1	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,037	1,018
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(143)	(170)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,037	1,018
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 143	$ 170
Small Business Administration Pooled Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	8	8
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	43,141	46,572
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(7,640)	(7,130)
Debt Securities, Available-for-sale, Unrealized Loss Position	43,141	46,572
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 7,640	$ 7,130
U.S. government agency securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	9	9
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	205,882	207,138
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(23,946)	(23,060)
Debt Securities, Available-for-sale, Unrealized Loss Position	205,882	207,138
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 23,946	$ 23,060
US Treasury Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| holding	15	17
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	673,415	769,102
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(51,405)	(55,495)
Debt Securities, Available-for-sale, Unrealized Loss Position	673,415	769,102
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 51,405	$ 55,495

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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