Loans and Allowance for Loan Losses Loan Classification by Risk Rating Category (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Percentage of loan portfolio as commercial loan	81.40%
Risk rated loans	$ 1,000
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,424,501	$ 19,787,876
Nonaccrual loans	73,836	61,605
Average balance of impaired loans		76,919	$ 75,257
Interest Lost on impaired loans	$ 3,300	3,000	4,200
Percentage of credit exposure to risk based capital	25.00%
Loans and other extensions of credit granted to directors, executive officers, and their related entities	$ 10,700	10,600
Amount drawn from loans and other extensions of credit granted	6,800	6,800
Commercial loans held-for-sale	31,200	17,585
Mortgage loans held-for-sale	67,800	61,600
Gains on mortgage loans sold, net	60,042	24,335	$ 14,564
Financing Receivable, Year One, Originated, Current Fiscal Year	8,401,422
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,276,694
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,553,597
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,467,660
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,130,064
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,057,306
Financing Receivable, Revolving	3,537,758
Potential problem loans	173,500	276,000
Mortgage Loan Volumes Sold	1,800,000	1,100,000
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	20,923,856
Financing Receivable, Year One, Originated, Current Fiscal Year	7,702,452
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,029,174
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,452,076
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,316,128
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,026,992
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	964,879
Financing Receivable, Revolving	3,432,155
Pass | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		19,299,393
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,253,298
Financing Receivable, Year One, Originated, Current Fiscal Year	617,356
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	214,071
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	73,627
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	128,918
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	85,685
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	64,608
Financing Receivable, Revolving	69,033
Special Mention | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		148,267
Substandard | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		278,611
Substandard | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		61,605
Doubtful | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		0
Substandard Accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	173,511
Financing Receivable, Year One, Originated, Current Fiscal Year	60,099
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	24,506
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	22,816
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	18,619
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	12,328
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	10,638
Financing Receivable, Revolving	24,505
Substandard Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	73,836
Financing Receivable, Year One, Originated, Current Fiscal Year	21,515
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	8,943
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	5,078
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	3,995
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	5,059
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	17,181
Financing Receivable, Revolving	12,065
Doubtful Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		7,709,218
Commercial Real Estate | Pass | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		7,499,725
Commercial Real Estate | Special Mention | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		51,147
Commercial Real Estate | Substandard | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		139,518
Commercial Real Estate | Substandard | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		18,828
Commercial Real Estate | Doubtful | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		0
Commercial Real Estate Owner Occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,802,227	2,669,766
Nonaccrual loans	10,231	11,654
Financing Receivable, Year One, Originated, Current Fiscal Year	881,209
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	468,580
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	462,996
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	337,978
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	294,074
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	269,561
Financing Receivable, Revolving	87,829
Commercial Real Estate Owner Occupied | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,616,826
Financing Receivable, Year One, Originated, Current Fiscal Year	824,419
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	437,755
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	430,690
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	311,132
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	280,826
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	257,717
Financing Receivable, Revolving	74,287
Commercial Real Estate Owner Occupied | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	117,673
Financing Receivable, Year One, Originated, Current Fiscal Year	38,687
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	23,641
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	22,521
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	13,335
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	5,089
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,762
Financing Receivable, Revolving	9,638
Commercial Real Estate Owner Occupied | Substandard Accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	57,497
Financing Receivable, Year One, Originated, Current Fiscal Year	17,131
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	7,035
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	6,853
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	12,063
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	6,627
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,946
Financing Receivable, Revolving	3,842
Commercial Real Estate Owner Occupied | Substandard Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	10,231
Financing Receivable, Year One, Originated, Current Fiscal Year	972
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	149
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,932
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,448
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,532
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,136
Financing Receivable, Revolving	62
Commercial Real Estate Owner Occupied | Doubtful Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Commercial real estate non owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,203,384	5,039,452
Nonaccrual loans	5,219	7,173
Financing Receivable, Year One, Originated, Current Fiscal Year	1,702,932
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,074,690
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	776,708
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	618,495
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	560,938
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	386,075
Financing Receivable, Revolving	83,546
Commercial real estate non owner occupied | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,275,929
Financing Receivable, Year One, Originated, Current Fiscal Year	1,210,032
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	951,070
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	728,348
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	507,095
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	482,642
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	323,036
Financing Receivable, Revolving	73,706
Commercial real estate non owner occupied | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	891,602
Financing Receivable, Year One, Originated, Current Fiscal Year	477,098
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	121,531
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	44,634
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	107,712
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	72,618
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	58,169
Financing Receivable, Revolving	9,840
Commercial real estate non owner occupied | Substandard Accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	30,634
Financing Receivable, Year One, Originated, Current Fiscal Year	15,039
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,666
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	3,140
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	3,551
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,929
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,309
Financing Receivable, Revolving	0
Commercial real estate non owner occupied | Substandard Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,219
Financing Receivable, Year One, Originated, Current Fiscal Year	763
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	423
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	586
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	137
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	749
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,561
Financing Receivable, Revolving	0
Commercial real estate non owner occupied | Doubtful Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Consumer Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,099,172	3,068,625
Financing Receivable, Year One, Originated, Current Fiscal Year	732,787
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	481,023
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	323,380
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	164,961
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	126,496
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	310,041
Financing Receivable, Revolving	960,484
Consumer Real Estate | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,059,316
Financing Receivable, Year One, Originated, Current Fiscal Year	730,617
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	477,965
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	321,411
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	163,457
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	123,900
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	296,408
Financing Receivable, Revolving	945,558
Consumer Real Estate | Pass | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		3,019,203
Consumer Real Estate | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11,993
Financing Receivable, Year One, Originated, Current Fiscal Year	1,206
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	65
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	970
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	67
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	946
Financing Receivable, Revolving	8,739
Consumer Real Estate | Special Mention | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		13,787
Consumer Real Estate | Substandard | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		10,969
Consumer Real Estate | Substandard | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		24,666
Consumer Real Estate | Doubtful | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		0
Consumer Real Estate | Substandard Accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,672
Financing Receivable, Year One, Originated, Current Fiscal Year	689
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	507
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	189
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	8
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,171
Financing Receivable, Revolving	2,108
Consumer Real Estate | Substandard Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,191
Financing Receivable, Year One, Originated, Current Fiscal Year	275
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,486
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	999
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,248
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	2,588
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	10,516
Financing Receivable, Revolving	4,079
Consumer Real Estate | Doubtful Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Construction and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,901,746	2,430,483
Nonaccrual loans	1,953	2,278
Financing Receivable, Year One, Originated, Current Fiscal Year	1,256,862
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,175,077
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	363,501
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	56,814
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	23,681
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	7,578
Financing Receivable, Revolving	18,233
Construction and Land Development | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,835,743
Financing Receivable, Year One, Originated, Current Fiscal Year	1,199,902
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,171,879
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	363,247
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	56,736
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	19,198
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	6,548
Financing Receivable, Revolving	18,233
Construction and Land Development | Pass | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		2,422,347
Construction and Land Development | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	62,850
Financing Receivable, Year One, Originated, Current Fiscal Year	55,805
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,648
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	154
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,243
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Construction and Land Development | Special Mention | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		2,816
Construction and Land Development | Substandard | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		3,042
Construction and Land Development | Substandard | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		2,278
Construction and Land Development | Doubtful | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		0
Construction and Land Development | Substandard Accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,200
Financing Receivable, Year One, Originated, Current Fiscal Year	777
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	15
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	27
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	240
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	141
Financing Receivable, Revolving	0
Construction and Land Development | Substandard Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,953
Financing Receivable, Year One, Originated, Current Fiscal Year	378
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	535
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	73
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	78
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	889
Financing Receivable, Revolving	0
Construction and Land Development | Doubtful Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,038,457	6,290,296
Financing Receivable, Year One, Originated, Current Fiscal Year	3,662,603
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,060,377
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	620,497
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	282,584
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	121,181
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	82,408
Financing Receivable, Revolving	2,208,807
Commercial and Industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	7,756,531
Financing Receivable, Year One, Originated, Current Fiscal Year	3,572,453
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	973,558
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	601,865
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	270,880
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	116,736
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	79,527
Financing Receivable, Revolving	2,141,512
Commercial and Industrial | Pass | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		6,069,757
Commercial and Industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	169,180
Financing Receivable, Year One, Originated, Current Fiscal Year	44,560
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	66,186
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	5,348
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	7,804
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,735
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	731
Financing Receivable, Revolving	40,816
Commercial and Industrial | Special Mention | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		79,819
Commercial and Industrial | Substandard | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		125,035
Commercial and Industrial | Substandard | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		15,685
Commercial and Industrial | Doubtful | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		0
Commercial and Industrial | Substandard Accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	78,508
Financing Receivable, Year One, Originated, Current Fiscal Year	26,463
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	15,283
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	12,796
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,816
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	524
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,071
Financing Receivable, Revolving	18,555
Commercial and Industrial | Substandard Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	34,238
Financing Receivable, Year One, Originated, Current Fiscal Year	19,127
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	5,350
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	488
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,084
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	186
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	79
Financing Receivable, Revolving	7,924
Commercial and Industrial | Doubtful Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Consumer and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	379,515	289,254
Nonaccrual loans	4	148
Financing Receivable, Year One, Originated, Current Fiscal Year	165,029
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	16,947
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	6,515
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	6,828
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,694
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,643
Financing Receivable, Revolving	178,859
Consumer and Other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	379,511
Financing Receivable, Year One, Originated, Current Fiscal Year	165,029
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	16,947
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	6,515
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	6,828
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,690
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,643
Financing Receivable, Revolving	178,859
Consumer and Other | Pass | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		288,361
Consumer and Other | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Consumer and Other | Special Mention | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		698
Consumer and Other | Substandard | Accruing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		47
Consumer and Other | Substandard | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		148
Consumer and Other | Doubtful | Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		$ 0
Consumer and Other | Substandard Accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Consumer and Other | Substandard Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4
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	4
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, Revolving	0
Consumer and Other | Doubtful Nonaccrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
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
Construction and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of credit exposure to risk based capital	89.00%	83.60%