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Allowance for Credit Losses - Loan Balances by Year of Origination and Performing and Nonperforming Status (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | $ 435,060 | $ 1,360,684
2019 | 1,184,593 | 1,214,746
2018 | 1,197,397 | 831,734
2017 | 777,580 | 565,201
2016 | 517,769 | 610,556
2016 and Prior | 2,014,783 | 1,572,826
Revolving | 1,027,762 | 1,041,199
Revolving-Term | 28,225 | 28,914
Total | 7,183,168 | 7,225,860
Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 429,585 | 1,355,291
2019 | 1,176,989 | 1,136,715
2018 | 1,098,741 | 792,352
2017 | 738,120 | 502,350
2016 | 462,653 | 494,436
2016 and Prior | 1,673,313 | 1,337,221
Revolving | 1,002,104 | 1,011,297
Revolving-Term | 24,770 | 25,726
Total | 6,606,275 | 6,655,389
Special mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 5,274
2019 | 7,532 | 47,302
2018 | 68,876 | 19,350
2017 | 13,283 | 24,802
2016 | 24,342 | 57,026
2016 and Prior | 133,387 | 91,677
Revolving | 18,005 | 24,296
Revolving-Term | 122 | 123
Total | 265,547 | 269,851
Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 5,476 | 118
2019 | 72 | 30,083
2018 | 29,134 | 20,032
2017 | 26,177 | 33,648
2016 | 30,773 | 57,105
2016 and Prior | 200,579 | 137,398
Revolving | 7,653 | 5,607
Revolving-Term | 3,332 | 3,066
Total | 303,198 | 287,056
Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 645
2018 | 645 | 0
2017 | 0 | 4,401
2016 | 0 | 1,989
2016 and Prior | 7,503 | 6,529
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 8,148 | 13,564
Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 429,585 | 1,360,654
2019 | 1,184,593 | 1,196,491
2018 | 1,179,550 | 827,625
2017 | 774,859 | 543,253
2016 | 503,978 | 586,622
2016 and Prior | 1,924,183 | 1,496,135
Revolving | 1,026,847 | 1,040,544
Revolving-Term | 27,160 | 27,762
Total | 7,050,755 | 7,079,086
Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 5,476 | 30
2019 | 0 | 18,254
2018 | 17,847 | 4,108
2017 | 2,720 | 21,948
2016 | 13,790 | 23,934
2016 and Prior | 90,599 | 76,691
Revolving | 915 | 654
Revolving-Term | 1,065 | 1,153
Total | 132,413 | 146,774
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 5,676,683 | 5,673,707
Commercial | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 96,988 | 334,086
2019 | 319,656 | 476,203
2018 | 497,992 | 417,944
2017 | 400,461 | 320,140
2016 | 300,796 | 415,184
2016 and Prior | 1,118,080 | 780,560
Revolving | 46,354 | 47,830
Revolving-Term | 0 | 0
Total | 2,780,327 | 2,791,947
Commercial | Commercial real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 96,988 | 334,086
2019 | 319,206 | 422,800
2018 | 444,668 | 394,963
2017 | 376,347 | 277,724
2016 | 258,362 | 307,321
2016 and Prior | 850,342 | 615,217
Revolving | 44,872 | 46,330
Revolving-Term | 0 | 0
Total | 2,390,785 | 2,398,441
Commercial | Commercial real estate | Special mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 450 | 35,499
2018 | 35,420 | 10,200
2017 | 8,342 | 22,502
2016 | 22,541 | 55,174
2016 and Prior | 113,614 | 75,022
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 180,367 | 198,397
Commercial | Commercial real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 17,259
2018 | 17,259 | 12,781
2017 | 15,772 | 19,914
2016 | 19,894 | 50,700
2016 and Prior | 146,624 | 83,792
Revolving | 1,482 | 1,500
Revolving-Term | 0 | 0
Total | 201,030 | 185,946
Commercial | Commercial real estate | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 645
2018 | 645 | 0
2017 | 0 | 0
2016 | 0 | 1,989
2016 and Prior | 7,499 | 6,529
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 8,144 | 9,163
Commercial | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 257,902 | 457,828
2019 | 481,453 | 215,457
2018 | 203,334 | 145,290
2017 | 118,255 | 82,249
2016 | 61,054 | 28,488
2016 and Prior | 193,891 | 221,609
Revolving | 383,699 | 408,631
Revolving-Term | 0 | 0
Total | 1,699,588 | 1,559,552
Commercial | Commercial and industrial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 252,427 | 454,131
2019 | 478,363 | 199,453
2018 | 168,546 | 140,049
2017 | 110,278 | 68,607
2016 | 55,096 | 27,645
2016 and Prior | 179,887 | 206,782
Revolving | 361,828 | 383,082
Revolving-Term | 0 | 0
Total | 1,606,425 | 1,479,749
Commercial | Commercial and industrial | Special mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 3,697
2019 | 3,090 | 8,211
2018 | 28,623 | 2,628
2017 | 3,562 | 697
2016 | 180 | 768
2016 and Prior | 1,289 | 1,046
Revolving | 17,718 | 23,527
Revolving-Term | 0 | 0
Total | 54,461 | 40,574
Commercial | Commercial and industrial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 5,476 | 0
2019 | 0 | 7,793
2018 | 6,165 | 2,613
2017 | 4,415 | 8,544
2016 | 5,778 | 75
2016 and Prior | 12,715 | 13,781
Revolving | 4,153 | 2,022
Revolving-Term | 0 | 0
Total | 38,701 | 34,828
Commercial | Commercial and industrial | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 0
2017 | 0 | 4,401
2016 | 0 | 0
2016 and Prior | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 4,401
Commercial | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 24,730 | 132,813
2019 | 131,133 | 230,907
2018 | 202,255 | 63,535
2017 | 53,248 | 2,921
2016 | 2,560 | 6,346
2016 and Prior | 22,301 | 16,777
Revolving | 13,232 | 12,778
Revolving-Term | 0 | 0
Total | 449,459 | 466,077
Commercial | Commercial construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 24,730 | 131,235
2019 | 127,643 | 224,794
2018 | 195,245 | 59,649
2017 | 53,248 | 2,420
2016 | 2,059 | 6,346
2016 and Prior | 10,856 | 4,555
Revolving | 13,232 | 12,778
Revolving-Term | 0 | 0
Total | 427,012 | 441,777
Commercial | Commercial construction | Special mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 1,578
2019 | 3,490 | 2,533
2018 | 2,862 | 3,886
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 8,478 | 8,593
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 14,830 | 16,590
Commercial | Commercial construction | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 3,580
2018 | 4,148 | 0
2017 | 0 | 501
2016 | 501 | 0
2016 and Prior | 2,967 | 3,629
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 7,616 | 7,710
Commercial | Commercial construction | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 0
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Commercial | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 34,568 | 296,357
2019 | 121,591 | 156,473
2018 | 171,003 | 128,250
2017 | 139,513 | 91,363
2016 | 93,638 | 82,202
2016 and Prior | 395,703 | 298,779
Revolving | 112,001 | 105,549
Revolving-Term | 1,061 | 1,094
Total | 1,069,078 | 1,160,067
Commercial | Business banking | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 34,568 | 296,254
2019 | 121,017 | 154,335
2018 | 167,764 | 123,207
2017 | 134,358 | 86,552
2016 | 89,027 | 77,238
2016 and Prior | 362,534 | 266,042
Revolving | 110,572 | 103,571
Revolving-Term | 265 | 291
Total | 1,020,105 | 1,107,490
Commercial | Business banking | Special mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 502 | 1,060
2018 | 1,972 | 1,147
2017 | 1,379 | 1,602
2016 | 1,621 | 1,084
2016 and Prior | 7,759 | 6,866
Revolving | 287 | 637
Revolving-Term | 122 | 123
Total | 13,642 | 12,519
Commercial | Business banking | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 103
2019 | 72 | 1,078
2018 | 1,267 | 3,896
2017 | 3,777 | 3,209
2016 | 2,990 | 3,880
2016 and Prior | 25,409 | 25,871
Revolving | 1,141 | 1,341
Revolving-Term | 674 | 680
Total | 35,330 | 40,058
Commercial | Business banking | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 0
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Commercial | Performing | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 96,988 | 334,086
2019 | 319,656 | 459,799
2018 | 481,588 | 417,944
2017 | 400,461 | 313,465
2016 | 294,122 | 394,972
2016 and Prior | 1,046,085 | 722,782
Revolving | 46,354 | 47,830
Revolving-Term | 0 | 0
Total | 2,685,253 | 2,690,879
Commercial | Performing | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 252,427 | 457,828
2019 | 481,453 | 214,144
2018 | 203,334 | 143,706
2017 | 117,623 | 69,411
2016 | 55,366 | 28,426
2016 and Prior | 193,614 | 220,701
Revolving | 383,355 | 408,350
Revolving-Term | 0 | 0
Total | 1,687,172 | 1,542,566
Commercial | Performing | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 24,730 | 132,813
2019 | 131,133 | 230,907
2018 | 202,255 | 63,535
2017 | 53,248 | 2,921
2016 | 2,560 | 6,346
2016 and Prior | 21,917 | 16,393
Revolving | 13,232 | 12,778
Revolving-Term | 0 | 0
Total | 449,074 | 465,692
Commercial | Performing | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 34,568 | 296,327
2019 | 121,591 | 156,164
2018 | 170,640 | 126,432
2017 | 137,748 | 90,414
2016 | 92,837 | 80,106
2016 and Prior | 384,332 | 286,970
Revolving | 111,932 | 105,494
Revolving-Term | 1,004 | 1,037
Total | 1,054,651 | 1,142,944
Commercial | Nonperforming | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 16,404
2018 | 16,404 | 0
2017 | 0 | 6,675
2016 | 6,674 | 20,212
2016 and Prior | 71,995 | 57,778
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 95,074 | 101,070
Commercial | Nonperforming | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 5,476 | 0
2019 | 0 | 1,313
2018 | 0 | 1,584
2017 | 631 | 12,838
2016 | 5,689 | 62
2016 and Prior | 276 | 908
Revolving | 344 | 281
Revolving-Term | 0 | 0
Total | 12,416 | 16,985
Commercial | Nonperforming | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 0
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 384 | 384
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 384 | 384
Commercial | Nonperforming | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 30
2019 | 0 | 309
2018 | 362 | 1,818
2017 | 1,765 | 949
2016 | 801 | 2,096
2016 and Prior | 11,371 | 11,809
Revolving | 69 | 55
Revolving-Term | 57 | 57
Total | 14,426 | 17,123
Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 1,506,485 | 1,552,153
Consumer | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 321,800 | 303,900
Consumer | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 20,000 | 120,736
2019 | 116,640 | 122,544
2018 | 111,128 | 69,931
2017 | 60,255 | 65,133
2016 | 56,942 | 76,254
2016 and Prior | 277,553 | 251,047
Revolving | 436,952 | 439,020
Revolving-Term | 24,630 | 22,667
Total | 1,104,099 | 1,167,332
Consumer | Consumer real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 20,000 | 120,736
2019 | 116,640 | 122,171
2018 | 110,942 | 67,700
2017 | 58,166 | 63,653
2016 | 55,435 | 73,805
2016 and Prior | 267,411 | 243,939
Revolving | 436,449 | 438,888
Revolving-Term | 23,550 | 22,667
Total | 1,088,594 | 1,153,559
Consumer | Consumer real estate | Special mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 1,489
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 2,246 | 150
Revolving | 0 | 132
Revolving-Term | 0 | 0
Total | 2,246 | 1,771
Consumer | Consumer real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 373
2018 | 186 | 742
2017 | 2,089 | 1,480
2016 | 1,506 | 2,449
2016 and Prior | 7,896 | 6,958
Revolving | 503 | 0
Revolving-Term | 1,080 | 0
Total | 13,260 | 12,002
Consumer | Consumer real estate | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 0
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Consumer | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 872 | 18,864
2019 | 14,119 | 13,162
2018 | 11,686 | 6,784
2017 | 5,848 | 3,395
2016 | 2,778 | 2,082
2016 and Prior | 7,255 | 4,054
Revolving | 35,525 | 27,391
Revolving-Term | 2,534 | 5,153
Total | 80,618 | 80,885
Consumer | Other consumer | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 872 | 18,849
2019 | 14,119 | 13,162
2018 | 11,576 | 6,784
2017 | 5,723 | 3,395
2016 | 2,673 | 2,082
2016 and Prior | 2,283 | 687
Revolving | 35,151 | 26,647
Revolving-Term | 955 | 2,767
Total | 73,354 | 74,373
Consumer | Other consumer | Special mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 0
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Consumer | Other consumer | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 15
2019 | 0 | 0
2018 | 109 | 0
2017 | 125 | 0
2016 | 104 | 0
2016 and Prior | 4,968 | 3,367
Revolving | 374 | 744
Revolving-Term | 1,579 | 2,386
Total | 7,260 | 6,512
Consumer | Other consumer | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 0 | 0
2017 | 0 | 0
2016 | 0 | 0
2016 and Prior | 4 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 4 | 0
Consumer | Performing | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 20,000 | 120,736
2019 | 116,640 | 122,315
2018 | 110,249 | 69,225
2017 | 59,931 | 63,647
2016 | 56,397 | 74,690
2016 and Prior | 272,547 | 245,331
Revolving | 436,628 | 438,702
Revolving-Term | 23,759 | 21,572
Total | 1,096,150 | 1,156,216
Consumer | Performing | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 872 | 18,864
2019 | 14,119 | 13,162
2018 | 11,485 | 6,784
2017 | 5,848 | 3,395
2016 | 2,697 | 2,082
2016 and Prior | 5,689 | 3,958
Revolving | 35,346 | 27,391
Revolving-Term | 2,397 | 5,153
Total | 78,455 | 80,789
Consumer | Nonperforming | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 229
2018 | 880 | 706
2017 | 324 | 1,486
2016 | 545 | 1,564
2016 and Prior | 5,006 | 5,716
Revolving | 324 | 318
Revolving-Term | 871 | 1,096
Total | 7,949 | 11,116
Consumer | Nonperforming | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 | 0
2019 | 0 | 0
2018 | 201 | 0
2017 | 0 | 0
2016 | 81 | 0
2016 and Prior | 1,566 | 96
Revolving | 179 | 0
Revolving-Term | 137 | 0
Total | $ 2,163 | $ 96

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- Definition Amount of financing receivable originated three years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
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- Definition Amount of financing receivable originated two years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
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