Loans and Leases and the Allowance for Credit Losses - Schedule of Amortized Cost Basis of Loans and Leases by Credit Quality Indicator, Loan Class, and Year of Origination (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	$ 1,068,933	$ 1,945,030
Fiscal Year Before Latest Fiscal Year	1,730,286	2,771,149
Two Years Before Latest Fiscal Year	2,576,796	2,481,049
Three Years Before Latest Fiscal Year	2,194,862	1,679,428
Four Years Before Latest Fiscal Year	1,574,833	674,605
Prior	2,095,832	1,653,267
Revolving Loans	2,622,751	2,712,450
Revolving Loans Converted to Term Loans	54,290	48,048
Total Loans and Leases	13,918,583	13,965,026
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	645,361	1,294,406
Fiscal Year Before Latest Fiscal Year	1,165,607	1,530,449
Two Years Before Latest Fiscal Year	1,471,326	988,303
Three Years Before Latest Fiscal Year	825,192	624,175
Four Years Before Latest Fiscal Year	588,485	308,049
Prior	754,004	537,667
Revolving Loans	479,788	493,974
Revolving Loans Converted to Term Loans	311	463
Total Loans and Leases	5,930,074	5,777,486
Commercial | Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	286,753	382,033
Fiscal Year Before Latest Fiscal Year	309,268	305,543
Two Years Before Latest Fiscal Year	249,807	238,214
Three Years Before Latest Fiscal Year	159,633	155,200
Four Years Before Latest Fiscal Year	142,694	41,353
Prior	99,277	86,988
Revolving Loans	427,604	442,905
Revolving Loans Converted to Term Loans	311	463
Total Loans and Leases	1,675,347	1,652,699
Commercial | Commercial and Industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	285,962	319,451
Fiscal Year Before Latest Fiscal Year	292,777	294,142
Two Years Before Latest Fiscal Year	245,738	229,286
Three Years Before Latest Fiscal Year	154,663	148,575
Four Years Before Latest Fiscal Year	136,087	40,696
Prior	90,848	77,789
Revolving Loans	366,971	380,524
Revolving Loans Converted to Term Loans	304	450
Total Loans and Leases	1,573,350	1,490,913
Commercial | Commercial and Industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	485	50,792
Fiscal Year Before Latest Fiscal Year	380	5,555
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	657
Prior	0	0
Revolving Loans	43,129	39,278
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	43,994	96,282
Commercial | Commercial and Industrial | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	306	11,790
Fiscal Year Before Latest Fiscal Year	16,111	5,846
Two Years Before Latest Fiscal Year	4,069	8,928
Three Years Before Latest Fiscal Year	4,970	6,625
Four Years Before Latest Fiscal Year	6,607	0
Prior	8,429	9,199
Revolving Loans	17,504	23,103
Revolving Loans Converted to Term Loans	7	13
Total Loans and Leases	58,003	65,504
Commercial | Paycheck Protection Program
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	2,199
Three Years Before Latest Fiscal Year	579	9,170
Four Years Before Latest Fiscal Year	5,767	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	6,346	11,369
Commercial | Paycheck Protection Program | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	2,199
Three Years Before Latest Fiscal Year	579	9,170
Four Years Before Latest Fiscal Year	5,767	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	6,346	11,369
Commercial | Commercial Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	264,931	824,743
Fiscal Year Before Latest Fiscal Year	720,117	1,062,263
Two Years Before Latest Fiscal Year	1,108,545	682,982
Three Years Before Latest Fiscal Year	652,915	449,883
Four Years Before Latest Fiscal Year	432,586	245,302
Prior	645,063	442,551
Revolving Loans	44,409	41,292
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	3,868,566	3,749,016
Commercial | Commercial Mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	196,564	788,558
Fiscal Year Before Latest Fiscal Year	655,229	1,043,472
Two Years Before Latest Fiscal Year	1,081,869	679,258
Three Years Before Latest Fiscal Year	646,371	432,896
Four Years Before Latest Fiscal Year	409,854	244,767
Prior	610,725	419,225
Revolving Loans	44,409	41,292
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	3,645,021	3,649,468
Commercial | Commercial Mortgage | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	32,508	30,356
Fiscal Year Before Latest Fiscal Year	47,868	18,636
Two Years Before Latest Fiscal Year	1,932	0
Three Years Before Latest Fiscal Year	3,377	3,875
Four Years Before Latest Fiscal Year	2,948	0
Prior	15,818	9,153
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	104,451	62,020
Commercial | Commercial Mortgage | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	35,859	5,829
Fiscal Year Before Latest Fiscal Year	17,020	155
Two Years Before Latest Fiscal Year	24,744	3,724
Three Years Before Latest Fiscal Year	3,167	13,112
Four Years Before Latest Fiscal Year	19,784	535
Prior	18,520	14,173
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	119,094	37,528
Commercial | Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	78,889	77,163
Fiscal Year Before Latest Fiscal Year	127,136	149,183
Two Years Before Latest Fiscal Year	102,669	50,996
Three Years Before Latest Fiscal Year	1,390	1,335
Four Years Before Latest Fiscal Year	1,291	16,009
Prior	0	0
Revolving Loans	7,775	9,777
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	319,150	304,463
Commercial | Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	78,889	77,163
Fiscal Year Before Latest Fiscal Year	127,136	149,183
Two Years Before Latest Fiscal Year	100,125	50,996
Three Years Before Latest Fiscal Year	1,390	0
Four Years Before Latest Fiscal Year	1,291	16,009
Prior	0	0
Revolving Loans	7,775	9,777
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	316,606	303,128
Commercial | Construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year		0
Fiscal Year Before Latest Fiscal Year		0
Two Years Before Latest Fiscal Year		0
Three Years Before Latest Fiscal Year		1,335
Four Years Before Latest Fiscal Year		0
Prior		0
Revolving Loans		0
Revolving Loans Converted to Term Loans		0
Total Loans and Leases		1,335
Commercial | Construction | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0
Fiscal Year Before Latest Fiscal Year	0
Two Years Before Latest Fiscal Year	2,544
Three Years Before Latest Fiscal Year	0
Four Years Before Latest Fiscal Year	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total Loans and Leases	2,544
Commercial | Lease Financing
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	14,788	10,467
Fiscal Year Before Latest Fiscal Year	9,086	13,460
Two Years Before Latest Fiscal Year	10,305	13,912
Three Years Before Latest Fiscal Year	10,675	8,587
Four Years Before Latest Fiscal Year	6,147	5,385
Prior	9,664	8,128
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	60,665	59,939
Commercial | Lease Financing | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	14,788	9,867
Fiscal Year Before Latest Fiscal Year	8,567	13,409
Two Years Before Latest Fiscal Year	10,265	13,795
Three Years Before Latest Fiscal Year	10,585	8,493
Four Years Before Latest Fiscal Year	6,078	5,385
Prior	9,255	7,650
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	59,538	58,599
Commercial | Lease Financing | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	600
Fiscal Year Before Latest Fiscal Year	519	51
Two Years Before Latest Fiscal Year	40	117
Three Years Before Latest Fiscal Year	90	94
Four Years Before Latest Fiscal Year	69	0
Prior	409	478
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	1,127	1,340
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	423,572	650,624
Fiscal Year Before Latest Fiscal Year	564,679	1,240,700
Two Years Before Latest Fiscal Year	1,105,470	1,492,746
Three Years Before Latest Fiscal Year	1,369,670	1,055,253
Four Years Before Latest Fiscal Year	986,348	366,556
Prior	1,341,828	1,115,600
Revolving Loans	2,142,963	2,218,476
Revolving Loans Converted to Term Loans	53,979	47,585
Total Loans and Leases	7,988,509	8,187,540
Consumer | Residential Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	165,448	297,532
Fiscal Year Before Latest Fiscal Year	278,126	796,979
Two Years Before Latest Fiscal Year	765,993	1,250,343
Three Years Before Latest Fiscal Year	1,201,573	977,377
Four Years Before Latest Fiscal Year	938,184	303,098
Prior	1,273,353	1,058,842
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	4,622,677	4,684,171
Consumer | Residential Mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	165,448	297,532
Fiscal Year Before Latest Fiscal Year	278,126	796,979
Two Years Before Latest Fiscal Year	765,135	1,249,917
Three Years Before Latest Fiscal Year	1,201,147	977,377
Four Years Before Latest Fiscal Year	937,449	303,098
Prior	1,271,855	1,057,267
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	4,619,160	4,682,170
Consumer | Residential Mortgage | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	858	426
Three Years Before Latest Fiscal Year	426	0
Four Years Before Latest Fiscal Year	735	0
Prior	1,498	1,575
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	3,517	2,001
Consumer | Home Equity Loan
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	41	43
Revolving Loans	2,141,824	2,217,199
Revolving Loans Converted to Term Loans	53,979	47,585
Total Loans and Leases	2,195,844	2,264,827
Consumer | Home Equity Loan | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	41	43
Revolving Loans	2,139,055	2,215,970
Revolving Loans Converted to Term Loans	53,491	46,794
Total Loans and Leases	2,192,587	2,262,807
Consumer | Home Equity Loan | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	0	0
Fiscal Year Before Latest Fiscal Year	0	0
Two Years Before Latest Fiscal Year	0	0
Three Years Before Latest Fiscal Year	0	0
Four Years Before Latest Fiscal Year	0	0
Prior	0	0
Revolving Loans	2,769	1,229
Revolving Loans Converted to Term Loans	488	791
Total Loans and Leases	3,257	2,020
Consumer | Automobile
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	166,456	250,464
Fiscal Year Before Latest Fiscal Year	204,396	302,076
Two Years Before Latest Fiscal Year	232,395	149,926
Three Years Before Latest Fiscal Year	107,413	64,780
Four Years Before Latest Fiscal Year	41,432	46,468
Prior	34,818	24,116
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	786,910	837,830
Consumer | Automobile | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	166,406	250,380
Fiscal Year Before Latest Fiscal Year	204,222	301,968
Two Years Before Latest Fiscal Year	232,226	149,915
Three Years Before Latest Fiscal Year	107,309	64,734
Four Years Before Latest Fiscal Year	41,428	46,396
Prior	34,739	24,038
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	786,330	837,431
Consumer | Automobile | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	50	84
Fiscal Year Before Latest Fiscal Year	174	108
Two Years Before Latest Fiscal Year	169	11
Three Years Before Latest Fiscal Year	104	46
Four Years Before Latest Fiscal Year	4	72
Prior	79	78
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	580	399
Consumer | Other Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	91,668	102,628
Fiscal Year Before Latest Fiscal Year	82,157	141,645
Two Years Before Latest Fiscal Year	107,082	92,477
Three Years Before Latest Fiscal Year	60,684	13,096
Four Years Before Latest Fiscal Year	6,732	16,990
Prior	33,616	32,599
Revolving Loans	1,139	1,277
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	383,078	400,712
Consumer | Other Loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	91,624	102,563
Fiscal Year Before Latest Fiscal Year	82,046	141,421
Two Years Before Latest Fiscal Year	106,876	92,312
Three Years Before Latest Fiscal Year	60,569	13,074
Four Years Before Latest Fiscal Year	6,706	16,897
Prior	33,564	32,519
Revolving Loans	1,139	1,277
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	382,524	400,063
Consumer | Other Loans | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Current Fiscal Year	44	65
Fiscal Year Before Latest Fiscal Year	111	224
Two Years Before Latest Fiscal Year	206	165
Three Years Before Latest Fiscal Year	115	22
Four Years Before Latest Fiscal Year	26	93
Prior	52	80
Revolving Loans	0	0
Revolving Loans Converted to Term Loans	0	0
Total Loans and Leases	$ 554	$ 649