Loans Loans - Weighted Average Risk Grade for All Commercial Loans by Class and Year of Origination (Details) $ in Thousands	Sep. 30, 2024 USD ($) Grade	Dec. 31, 2023 USD ($) Grade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 20,054,863	$ 18,824,251
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,213,266
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	645,575
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	596,772
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	335,508
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	303,937
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	318,214
Financing Receivable, Revolving	2,342,671
Loans and Leases Receivable, Net of Deferred Income	$ 5,822,976	$ 5,967,182
Weighted Average Risk Grade For Loans | Grade	6.71	6.60
Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 329,675
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	26,287
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	52,657
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	45,169
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,488
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	9,365
Financing Receivable, Revolving	596,664
Loans and Leases Receivable, Net of Deferred Income	$ 1,069,718	$ 936,737
Weighted Average Risk Grade For Loans | Grade	5.91	6.05
Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 1,028,255
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,458,787
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,637,773
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,174,145
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	724,347
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,161,426
Financing Receivable, Revolving	133,265
Loans and Leases Receivable, Net of Deferred Income	$ 7,475,265	$ 7,301,920
Weighted Average Risk Grade For Loans | Grade	7.31	7.20
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 573,431
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	578,682
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	605,020
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	279,883
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	27,978
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	711
Financing Receivable, Revolving	239,389
Loans and Leases Receivable, Net of Deferred Income	$ 2,305,255	$ 1,680,724
Weighted Average Risk Grade For Loans | Grade	7.58	7.45
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 1,601,686
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,037,469
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,242,793
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,454,028
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	752,325
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,162,137
Financing Receivable, Revolving	372,654
Loans and Leases Receivable, Net of Deferred Income	$ 9,780,520	$ 8,982,644
Weighted Average Risk Grade For Loans | Grade	7.37	7.24
Risk Grade One To Eight [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 1,117,081
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	608,162
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	467,493
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	297,464
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	293,499
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	291,128
Financing Receivable, Revolving	2,130,893
Loans and Leases Receivable, Net of Deferred Income	$ 5,246,290	$ 5,507,878
Weighted Average Risk Grade For Loans | Grade	6.34	6.32
Risk Grade One To Eight [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 325,589
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	23,800
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	47,276
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	43,113
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,378
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,499
Financing Receivable, Revolving	568,678
Loans and Leases Receivable, Net of Deferred Income	$ 1,022,116	$ 871,221
Weighted Average Risk Grade For Loans | Grade	5.72	5.73
Risk Grade One To Eight [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 996,825
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,382,808
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,393,417
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,075,231
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	683,603
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,022,727
Financing Receivable, Revolving	119,987
Loans and Leases Receivable, Net of Deferred Income	$ 6,764,607	$ 6,895,358
Weighted Average Risk Grade For Loans | Grade	7.03	7.03
Risk Grade One To Eight [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 468,262
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	543,840
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	497,630
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	53,892
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	27,978
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	711
Financing Receivable, Revolving	232,768
Loans and Leases Receivable, Net of Deferred Income	$ 1,825,242	$ 1,526,086
Weighted Average Risk Grade For Loans | Grade	7.14	7.27
Risk Grade One To Eight [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income		$ 8,421,444
Weighted Average Risk Grade For Loans | Grade		7.07
Risk Grade Nine [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 17,309
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	13,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	92,050
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	11,848
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,481
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	10,212
Financing Receivable, Revolving	106,701
Loans and Leases Receivable, Net of Deferred Income	$ 260,703	$ 205,244
Weighted Average Risk Grade For Loans | Grade	9.00	9.00
Risk Grade Nine [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,487
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	3,318
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,040
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	406
Financing Receivable, Revolving	17,517
Loans and Leases Receivable, Net of Deferred Income	$ 26,398	$ 27,643
Weighted Average Risk Grade For Loans | Grade	9.00	9.00
Risk Grade Nine [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 18,021
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	17,294
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	127,554
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	48,332
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	11,198
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	41,484
Financing Receivable, Revolving	10,560
Loans and Leases Receivable, Net of Deferred Income	$ 339,983	$ 173,470
Weighted Average Risk Grade For Loans | Grade	9.00	9.00
Risk Grade Nine [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 90,353
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	93,883
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	176,903
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	6,621
Loans and Leases Receivable, Net of Deferred Income	$ 367,760	$ 127,102
Weighted Average Risk Grade For Loans | Grade	9.00	9.00
Risk Grade Nine [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income		$ 300,572
Weighted Average Risk Grade For Loans | Grade		9.00
Risk Grade Ten [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 6,900
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	5,377
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	14,054
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,215
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	132
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	12,591
Financing Receivable, Revolving	26,412
Loans and Leases Receivable, Net of Deferred Income	$ 68,099	$ 109,254
Weighted Average Risk Grade For Loans | Grade	10.00	10.00
Risk Grade Ten [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	16
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	3,000
Loans and Leases Receivable, Net of Deferred Income	$ 3,016	$ 818
Weighted Average Risk Grade For Loans | Grade	10.00	10.00
Risk Grade Ten [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 2,576
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	32,349
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	51,933
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	25,609
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	16,692
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	13,015
Financing Receivable, Revolving	0
Loans and Leases Receivable, Net of Deferred Income	$ 143,892	$ 96,601
Weighted Average Risk Grade For Loans | Grade	10.00	10.00
Risk Grade Ten [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 14,816
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	34,842
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,208
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	49,088
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Loans and Leases Receivable, Net of Deferred Income	$ 99,954	$ 17,035
Weighted Average Risk Grade For Loans | Grade	10.00	10.00
Risk Grade Ten [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income		$ 113,636
Weighted Average Risk Grade For Loans | Grade		10.00
Risk Grade Eleven [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 49,220
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	16,214
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	18,840
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	22,893
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	5,331
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,112
Financing Receivable, Revolving	77,935
Loans and Leases Receivable, Net of Deferred Income	$ 196,825	$ 125,261
Weighted Average Risk Grade For Loans | Grade	11.00	11.00
Risk Grade Eleven [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,063
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	54
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,139
Financing Receivable, Revolving	4,767
Loans and Leases Receivable, Net of Deferred Income	$ 10,023	$ 25,555
Weighted Average Risk Grade For Loans | Grade	11.00	11.00
Risk Grade Eleven [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 10,505
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	7,469
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	53,958
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	21,731
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	11,606
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	82,606
Financing Receivable, Revolving	0
Loans and Leases Receivable, Net of Deferred Income	$ 187,875	$ 114,071
Weighted Average Risk Grade For Loans | Grade	11.00	11.00
Risk Grade Eleven [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	12,299
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Loans and Leases Receivable, Net of Deferred Income	$ 12,299	$ 10,501
Weighted Average Risk Grade For Loans | Grade	11.00	11.00
Risk Grade Eleven [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income		$ 124,572
Weighted Average Risk Grade For Loans | Grade		11.00
Risk Grade Twelve [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 15,220
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,272
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,856
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,060
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	483
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,171
Financing Receivable, Revolving	723
Loans and Leases Receivable, Net of Deferred Income	$ 35,658	$ 17,102
Weighted Average Risk Grade For Loans | Grade	12.00	12.00
Risk Grade Twelve [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 4,086
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	56
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,321
Financing Receivable, Revolving	2
Loans and Leases Receivable, Net of Deferred Income	$ 5,465	$ 8,800
Weighted Average Risk Grade For Loans | Grade	12.00	12.00
Risk Grade Twelve [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 328
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	14,717
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	10,911
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	3,020
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,126
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,594
Financing Receivable, Revolving	2,437
Loans and Leases Receivable, Net of Deferred Income	$ 34,133	$ 19,770
Weighted Average Risk Grade For Loans | Grade	12.00	12.00
Risk Grade Twelve [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Loans and Leases Receivable, Net of Deferred Income	$ 0	$ 0
Weighted Average Risk Grade For Loans | Grade	12.00	12.00
Risk Grade Twelve [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income		$ 19,770
Weighted Average Risk Grade For Loans | Grade		12.00
Risk Grade Thirteen [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 7,536
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	550
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,479
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	28
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	11
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	7
Loans and Leases Receivable, Net of Deferred Income	$ 15,401	$ 2,443
Weighted Average Risk Grade For Loans | Grade	13.00	13.00
Risk Grade Thirteen [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	2,700
Loans and Leases Receivable, Net of Deferred Income	$ 2,700	$ 2,700
Weighted Average Risk Grade For Loans | Grade	13.00	13.00
Risk Grade Thirteen [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,150
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	222
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	122
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	281
Loans and Leases Receivable, Net of Deferred Income	$ 4,775	$ 2,650
Weighted Average Risk Grade For Loans | Grade	13.00	13.00
Risk Grade Thirteen [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Loans and Leases Receivable, Net of Deferred Income	$ 0	$ 0
Weighted Average Risk Grade For Loans | Grade	13.00	13.00
Risk Grade Thirteen [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net of Deferred Income		$ 2,650
Weighted Average Risk Grade For Loans | Grade		13.00
Revolving Credit Facility [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.42
Revolving Credit Facility [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	5.46
Revolving Credit Facility [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.24
Revolving Credit Facility [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.04
Revolving Credit Facility [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.47
Revolving Loans Converted to Term [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 67,033
Weighted Average Risk Grade For Loans | Grade	8.89
Revolving Loans Converted to Term [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 6,413
Weighted Average Risk Grade For Loans | Grade	7.06
Revolving Loans Converted to Term [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 157,267
Weighted Average Risk Grade For Loans | Grade	7.61
Revolving Loans Converted to Term [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 161
Weighted Average Risk Grade For Loans | Grade	7.03
Revolving Loans Converted to Term [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 157,428
Weighted Average Risk Grade For Loans | Grade	7.61
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 40,570
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	5,783
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	90,009
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	161
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	5,102
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	630
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	65,540
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	1,418
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	1,718
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	4,280
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	9,873
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	5,790
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 0
2024 [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.93
2024 [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.27
2024 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.21
2024 [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.68
2024 [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.38
2023 [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.99
2023 [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.16
2023 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.34
2023 [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.52
2023 [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.39
2022 [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.49
2022 [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.24
2022 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.43
2022 [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.79
2022 [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.52
2021 [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.20
2021 [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.09
2021 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.40
2021 [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	8.85
2021 [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.68
2020 [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	5.70
2020 [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.81
2020 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.13
2020 [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	2.53
2020 [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.96
Prior Years [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	6.07
Prior Years [Member] | Commercial and Industrial Total Energy Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	9.06
Prior Years [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.16
Prior Years [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.71
Prior Years [Member] | Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Grade For Loans | Grade	7.16