Allowance for Credit Losses - Summary of Loan grades applied various classes of Commercial and Real Estate Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	$ 131,564,163	$ 92,912,452
Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	26,197,545	16,234,904
Revolving Loans Converted to Term Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,664,096	1,199,887
Term Loans 2022 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	24,853,925
Term Loans 2021 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	18,747,757	18,817,411
Term Loans 2020 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	13,072,920	12,376,366
Term Loans 2019 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	12,737,602	12,286,933
Term Loans 2018 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	7,534,367	7,895,140
Term Loans 2017 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		5,558,871
Term Loans Prior Period [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	26,755,951	18,542,940
Commercial, Financial, Leasing, etc. [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	41,850,566	23,473,324
Commercial, Financial, Leasing, etc. [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	20,313,716	11,538,391
Commercial, Financial, Leasing, etc. [Member] | Revolving Loans Converted to Term Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	64,599	40,836
Commercial, Financial, Leasing, etc. [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	39,621,772	22,054,341
Commercial, Financial, Leasing, etc. [Member] | Pass [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	19,444,247	10,993,461
Commercial, Financial, Leasing, etc. [Member] | Pass [Member] | Revolving Loans Converted to Term Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	40,471	18,699
Commercial, Financial, Leasing, etc. [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,881,590	1,197,961
Commercial, Financial, Leasing, etc. [Member] | Criticized Accrual [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	768,497	484,755
Commercial, Financial, Leasing, etc. [Member] | Criticized Accrual [Member] | Revolving Loans Converted to Term Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	17,026	15,628
Commercial, Financial, Leasing, etc. [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	347,204	221,022
Commercial, Financial, Leasing, etc. [Member] | Criticized Nonaccrual [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	100,972	60,175
Commercial, Financial, Leasing, etc. [Member] | Criticized Nonaccrual [Member] | Revolving Loans Converted to Term Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	7,102	6,509
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	8,841,135
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	8,575,130
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	247,626
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	18,379
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	5,227,686	5,014,194
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	4,952,758	4,798,052
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	222,861	196,680
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	52,067	19,462
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	2,252,579	2,037,896
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	2,024,603	1,916,072
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	190,368	98,595
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	37,608	23,229
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,949,169	1,600,910
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,796,047	1,476,786
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	116,881	107,010
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	36,241	17,114
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	924,743	1,064,915
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	817,569	951,881
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	71,485	73,126
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	35,689	39,908
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2017 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		557,774
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2017 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		500,615
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2017 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		36,232
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2017 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		20,927
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	2,276,939	1,618,408
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,970,947	1,398,775
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	246,846	185,935
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	59,146	33,698
Commercial [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	36,748,173	26,132,755
Commercial [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	941,189	805,609
Commercial [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	30,531,762	20,445,045
Commercial [Member] | Pass [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	869,981	728,948
Commercial [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	4,819,749	4,618,430
Commercial [Member] | Criticized Accrual [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	48,099	38,570
Commercial [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,396,662	1,069,280
Commercial [Member] | Criticized Nonaccrual [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	23,109	38,091
Commercial [Member] | Term Loans 2022 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	4,473,083
Commercial [Member] | Term Loans 2022 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	4,136,890
Commercial [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	324,652
Commercial [Member] | Term Loans 2022 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	11,541
Commercial [Member] | Term Loans 2021 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	3,865,843	3,568,307
Commercial [Member] | Term Loans 2021 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	3,379,900	3,413,587
Commercial [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	463,484	133,133
Commercial [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	22,459
Commercial [Member] | Term Loans 2020 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	4,040,133	3,276,705
Commercial [Member] | Term Loans 2020 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	3,388,590	2,662,999
Commercial [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	467,557	480,146
Commercial [Member] | Term Loans 2020 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	183,986	133,560
Commercial [Member] | Term Loans 2019 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	5,542,410	4,562,963
Commercial [Member] | Term Loans 2019 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	4,557,065	3,682,178
Commercial [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	688,239	685,701
Commercial [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	297,106	195,084
Commercial [Member] | Term Loans 2018 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	4,401,183	3,800,797
Commercial [Member] | Term Loans 2018 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	3,293,380	2,648,388
Commercial [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	937,421	1,068,552
Commercial [Member] | Term Loans 2018 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	170,382	83,857
Commercial [Member] | Term Loans 2017 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		2,621,313
Commercial [Member] | Term Loans 2017 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		2,076,155
Commercial [Member] | Term Loans 2017 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		468,530
Commercial [Member] | Term Loans 2017 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		76,628
Commercial [Member] | Term Loans Prior Period [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	13,484,332	7,497,061
Commercial [Member] | Term Loans Prior Period [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	10,905,956	5,232,790
Commercial [Member] | Term Loans Prior Period [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,890,297	1,743,798
Commercial [Member] | Term Loans Prior Period [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	688,079	520,473
Residential Builder and Developer [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,314,730	1,406,346
Residential Builder and Developer [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	181,219	230,908
Residential Builder and Developer [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,117,256	1,263,514
Residential Builder and Developer [Member] | Pass [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	150,404	230,017
Residential Builder and Developer [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	196,245	139,827
Residential Builder and Developer [Member] | Criticized Accrual [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	30,815	891
Residential Builder and Developer [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,229	3,005
Residential Builder and Developer [Member] | Term Loans 2022 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	683,731
Residential Builder and Developer [Member] | Term Loans 2022 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	680,705
Residential Builder and Developer [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	2,969
Residential Builder and Developer [Member] | Term Loans 2022 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	57
Residential Builder and Developer [Member] | Term Loans 2021 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	259,205	789,038
Residential Builder and Developer [Member] | Term Loans 2021 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	230,079	786,983
Residential Builder and Developer [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	28,472	2,055
Residential Builder and Developer [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	654
Residential Builder and Developer [Member] | Term Loans 2020 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	21,232	111,866
Residential Builder and Developer [Member] | Term Loans 2020 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	11,280	106,510
Residential Builder and Developer [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	9,952	5,356
Residential Builder and Developer [Member] | Term Loans 2019 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	131,597	195,455
Residential Builder and Developer [Member] | Term Loans 2019 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	22,111	75,287
Residential Builder and Developer [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	108,968	117,258
Residential Builder and Developer [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	518	2,910
Residential Builder and Developer [Member] | Term Loans 2018 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	27,881	61,224
Residential Builder and Developer [Member] | Term Loans 2018 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	12,812	47,587
Residential Builder and Developer [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	15,069	13,637
Residential Builder and Developer [Member] | Term Loans 2017 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		5,310
Residential Builder and Developer [Member] | Term Loans 2017 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		4,680
Residential Builder and Developer [Member] | Term Loans 2017 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		630
Residential Builder and Developer [Member] | Term Loans Prior Period [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	9,865	12,545
Residential Builder and Developer [Member] | Term Loans Prior Period [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	9,865	12,450
Residential Builder and Developer [Member] | Term Loans Prior Period [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		95
Other Commercial Construction [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	7,301,668	7,850,629
Other Commercial Construction [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	18,001	43,037
Other Commercial Construction [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	5,204,061	6,059,379
Other Commercial Construction [Member] | Pass [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	15,575	38,781
Other Commercial Construction [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,972,670	1,679,845
Other Commercial Construction [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	124,937	111,405
Other Commercial Construction [Member] | Criticized Nonaccrual [Member] | Revolving Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	2,426	4,256
Other Commercial Construction [Member] | Term Loans 2022 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,070,667
Other Commercial Construction [Member] | Term Loans 2022 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,032,774
Other Commercial Construction [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	37,893
Other Commercial Construction [Member] | Term Loans 2021 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,235,332	982,050
Other Commercial Construction [Member] | Term Loans 2021 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,080,141	957,947
Other Commercial Construction [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	145,199	24,103
Other Commercial Construction [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	9,992	21,587
Other Commercial Construction [Member] | Term Loans 2020 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,590,345	1,835,794
Other Commercial Construction [Member] | Term Loans 2020 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,225,845	1,781,603
Other Commercial Construction [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	320,463	54,191
Other Commercial Construction [Member] | Term Loans 2020 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	44,037
Other Commercial Construction [Member] | Term Loans 2019 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	2,246,897	2,769,115
Other Commercial Construction [Member] | Term Loans 2019 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,185,685	2,022,276
Other Commercial Construction [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	1,025,371	675,226
Other Commercial Construction [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	35,841	71,613
Other Commercial Construction [Member] | Term Loans 2018 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	676,578	1,419,278
Other Commercial Construction [Member] | Term Loans 2018 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	366,686	832,547
Other Commercial Construction [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	299,350	583,428
Other Commercial Construction [Member] | Term Loans 2018 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	10,542	3,303
Other Commercial Construction [Member] | Term Loans 2017 [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		393,671
Other Commercial Construction [Member] | Term Loans 2017 [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		152,669
Other Commercial Construction [Member] | Term Loans 2017 [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		228,739
Other Commercial Construction [Member] | Term Loans 2017 [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount		12,263
Other Commercial Construction [Member] | Term Loans Prior Period [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	463,848	407,684
Other Commercial Construction [Member] | Term Loans Prior Period [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	297,355	273,556
Other Commercial Construction [Member] | Term Loans Prior Period [Member] | Criticized Accrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	144,394	114,158
Other Commercial Construction [Member] | Term Loans Prior Period [Member] | Criticized Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Loans and leases, net of unearned discount	$ 22,099	$ 19,970