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Allowance for Credit Losses (ACL) - Disaggregated analysis of the changes in allowance for credit losses (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 07, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | $ 350,401 | $ 434,608 | $ 457,309 | $ 56,927
Charge-offs |  | (3,847) | (4,642) | (12,883) | (10,296)
Recoveries |  | 3,801 | 4,048 | 10,744 | 8,287
Net (charge-offs) recoveries |  | (46) | (594) | (2,139) | (2,009)
(Recovery) provision |  | (36,211) | 7,687 | (141,026) | 71,957
Balance at end of period |  | 314,144 | 440,159 | 314,144 | 440,159
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 297,728 | 426,934 | 297,728 | 426,934
Individually evaluated |  | 1,726 | 1,171 | 1,726 | 1,171
Total quantitative allowance |  | 299,454 | 428,105 | 299,454 | 428,105
Qualitative allowance |  | 14,690 | 12,054 | 14,690 | 12,054
Provision for credit losses |  | (36,211) | 7,687 | (141,026) | 71,957
Unfunded Commitment |  |  |  |  |
Allowance for credit losses |  |  |  |  |
(Recovery) provision |  | (2,700) | 22,100 | (15,100) | 36,400
Quantitative allowance |  |  |  |  |
Provision for credit losses |  | (2,700) | 22,100 | (15,100) | 36,400
Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 3,408
Balance at end of period |  |  | 149,404 |  | 149,404
Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 433,066 |  | 111,365
Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | (1,542) |  | 51,030
Balance at end of period |  |  | 109,442 |  | 109,442
Residential Mortgage Sr. |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 55,820 | 67,342 | 63,561 | 6,128
Charge-offs |  | (15) | (90) | (204) | (473)
Recoveries |  | 332 | 289 | 1,103 | 876
Net (charge-offs) recoveries |  | 317 | 199 | 899 | 403
(Recovery) provision |  | (4,587) | (5,351) | (12,910) | 3,180
Balance at end of period |  | 51,550 | 62,219 | 51,550 | 62,219
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 48,411 | 60,377 | 48,411 | 60,377
Individually evaluated |  | 77 | 115 | 77 | 115
Total quantitative allowance |  | 48,488 | 60,492 | 48,488 | 60,492
Qualitative allowance |  | 3,062 | 1,727 | 3,062 | 1,727
Provision for credit losses |  | (4,587) | (5,351) | (12,910) | 3,180
Residential Mortgage Sr. | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 406
Balance at end of period |  |  | 29,935 |  | 29,935
Residential Mortgage Sr. | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 67,371 |  | 11,989
Residential Mortgage Sr. | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 29 |  | 5,455
Balance at end of period |  |  | 16,712 |  | 16,712
Residential Mortgage Jr. |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 825 | 1,081 | 1,238 | 15
Charge-offs |  |  |  |  | (24)
Recoveries |  | 48 | 100 | 131 | 246
Net (charge-offs) recoveries |  | 48 | 100 | 131 | 222
(Recovery) provision |  | (174) | 253 | (670) | 153
Balance at end of period |  | 699 | 1,434 | 699 | 1,434
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 699 | 1,477 | 699 | 1,477
Total quantitative allowance |  | 699 | 1,477 | 699 | 1,477
Qualitative allowance |  |  | (43) |  | (43)
Provision for credit losses |  | (174) | 253 | (670) | 153
Residential Mortgage Jr. | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 3
Balance at end of period |  |  | 804 |  | 804
Residential Mortgage Jr. | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 1,081 |  | 29
Residential Mortgage Jr. | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 11
Balance at end of period |  |  | 226 |  | 226
HELOC |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 14,550 | 26,623 | 16,698 | 4,327
Charge-offs |  | (149) | (297) | (835) | (978)
Recoveries |  | 720 | 365 | 1,903 | 988
Net (charge-offs) recoveries |  | 571 | 68 | 1,068 | 10
(Recovery) provision |  | (204) | (5,584) | (2,849) | 3,286
Balance at end of period |  | 14,917 | 21,107 | 14,917 | 21,107
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 13,307 | 18,868 | 13,307 | 18,868
Individually evaluated |  | 959 | 73 | 959 | 73
Total quantitative allowance |  | 14,266 | 18,941 | 14,266 | 18,941
Qualitative allowance |  | 651 | 2,166 | 651 | 2,166
Provision for credit losses |  | (204) | (5,584) | (2,849) | 3,286
HELOC | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 289
Balance at end of period |  |  | 5,119 |  | 5,119
HELOC | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 26,623 |  | 8,465
HELOC | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 3,849
Balance at end of period |  |  | 4,227 |  | 4,227
Residential Construction |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 4,488 | 9,439 | 4,914 | 815
Charge-offs |  |  |  |  | (31)
Recoveries |  | 2 | 79 | 3 | 83
Net (charge-offs) recoveries |  | 2 | 79 | 3 | 52
(Recovery) provision |  | 295 | (4,151) | (132) | (2,474)
Balance at end of period |  | 4,785 | 5,367 | 4,785 | 5,367
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 4,756 | 5,132 | 4,756 | 5,132
Total quantitative allowance |  | 4,756 | 5,132 | 4,756 | 5,132
Qualitative allowance |  | 29 | 235 | 29 | 235
Provision for credit losses |  | 295 | (4,151) | (132) | (2,474)
Residential Construction | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at end of period |  |  | 1,302 |  | 1,302
Residential Construction | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 9,439 |  | 1,594
Residential Construction | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 779
Balance at end of period |  |  | 4,893 |  | 4,893
Other C&D |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 45,488 | 33,912 | 67,197 | 6,211
Charge-offs |  |  | (38) | (87) | (212)
Recoveries |  | 748 | 221 | 1,178 | 1,070
Net (charge-offs) recoveries |  | 748 | 183 | 1,091 | 858
(Recovery) provision |  | (10,337) | 29,756 | (32,389) | 37,135
Balance at end of period |  | 35,899 | 63,851 | 35,899 | 63,851
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 35,893 | 66,087 | 35,893 | 66,087
Individually evaluated |  | 6 | 8 | 6 | 8
Total quantitative allowance |  | 35,899 | 66,095 | 35,899 | 66,095
Qualitative allowance |  |  | (2,244) |  | (2,244)
Provision for credit losses |  | (10,337) | 29,756 | (32,389) | 37,135
Other C&D | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 351
Balance at end of period |  |  | 6,035 |  | 6,035
Other C&D | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 33,912 |  | 12,150
Other C&D | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 5,588
Balance at end of period |  |  | 7,673 |  | 7,673
Consumer |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 25,697 | 20,170 | 26,562 | 4,350
Charge-offs |  | (2,366) | (1,393) | (6,001) | (4,301)
Recoveries |  | 577 | 602 | 1,618 | 1,498
Net (charge-offs) recoveries |  | (1,789) | (791) | (4,383) | (2,803)
(Recovery) provision |  | 332 | 4,577 | 2,061 | 8,294
Balance at end of period |  | 24,240 | 23,956 | 24,240 | 23,956
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 21,509 | 19,276 | 21,509 | 19,276
Individually evaluated |  |  | 2 |  | 2
Total quantitative allowance |  | 21,509 | 19,278 | 21,509 | 19,278
Qualitative allowance |  | 2,731 | 4,678 | 2,731 | 4,678
Provision for credit losses |  | 332 | 4,577 | 2,061 | 8,294
Consumer | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 669
Balance at end of period |  |  | 6,120 |  | 6,120
Consumer | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 20,170 |  | 8,509
Consumer | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 3,490
Balance at end of period |  |  | 3,836 |  | 3,836
Multifamily |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 5,883 | 7,792 | 7,887 | 1,557
Recoveries |  |  | 8 | 3 | 63
Net (charge-offs) recoveries |  |  | 8 | 3 | 63
(Recovery) provision |  | (1,299) | 767 | (3,306) | 3,345
Balance at end of period |  | 4,584 | 8,567 | 4,584 | 8,567
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 4,584 | 8,567 | 4,584 | 8,567
Total quantitative allowance |  | 4,584 | 8,567 | 4,584 | 8,567
Provision for credit losses |  | (1,299) | 767 | (3,306) | 3,345
Multifamily | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 97
Balance at end of period |  |  | 902 |  | 902
Multifamily | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 7,792 |  | 3,045
Multifamily | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 1,391
Balance at end of period |  |  | 1,212 |  | 1,212
Municipal |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 1,063 | 4,075 | 1,510 | 956
(Recovery) provision |  | (554) | (2,641) | (1,001) | (2,358)
Balance at end of period |  | 509 | 1,434 | 509 | 1,434
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 509 | 603 | 509 | 603
Total quantitative allowance |  | 509 | 603 | 509 | 603
Qualitative allowance |  |  | 831 |  | 831
Provision for credit losses |  | (554) | (2,641) | (1,001) | (2,358)
Municipal | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at end of period |  |  | 1,003 |  | 1,003
Municipal | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 4,075 |  | 1,870
Municipal | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 914
Balance at end of period |  |  | 919 |  | 919
CRE Owner Occupied |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 75,492 | 90,206 | 97,104 | 10,879
Charge-offs |  | (4) | (458) | (2,052) | (1,081)
Recoveries |  | 332 | 457 | 796 | 885
Net (charge-offs) recoveries |  | 328 | (1) | (1,256) | (196)
(Recovery) provision |  | (10,611) | 4,830 | (30,639) | 13,224
Balance at end of period |  | 65,209 | 93,780 | 65,209 | 93,780
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 62,969 | 95,399 | 62,969 | 95,399
Individually evaluated |  | 377 | 961 | 377 | 961
Total quantitative allowance |  | 63,346 | 96,360 | 63,346 | 96,360
Qualitative allowance |  | 1,863 | (2,580) | 1,863 | (2,580)
Provision for credit losses |  | (10,611) | 4,830 | (30,639) | 13,224
CRE Owner Occupied | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 898
Balance at end of period |  |  | 34,077 |  | 34,077
CRE Owner Occupied | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 88,951 |  | 21,282
CRE Owner Occupied | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | (1,255) |  | 9,505
Balance at end of period |  |  | 25,393 |  | 25,393
Non Owner Occupied CRE |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 90,404 | 129,958 | 124,421 | 15,219
Charge-offs |  | (241) | (578) | (776) | (601)
Recoveries |  | 173 | 234 | 905 | 287
Net (charge-offs) recoveries |  | (68) | (344) | 129 | (314)
(Recovery) provision |  | (7,458) | (9,181) | (41,672) | 10,123
Balance at end of period |  | 82,878 | 120,436 | 82,878 | 120,436
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 79,302 | 121,403 | 79,302 | 121,403
Individually evaluated |  |  | 5 |  | 5
Total quantitative allowance |  | 79,302 | 121,408 | 79,302 | 121,408
Qualitative allowance |  | 3,576 | (972) | 3,576 | (972)
Provision for credit losses |  | (7,458) | (9,181) | (41,672) | 10,123
Non Owner Occupied CRE | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 656
Balance at end of period |  |  | 45,787 |  | 45,787
Non Owner Occupied CRE | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 129,961 |  | 29,773
Non Owner Occupied CRE | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 3 |  | 13,898
Balance at end of period |  |  | 35,067 |  | 35,067
C & I |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 30,691 | 44,010 | 46,217 | 6,470
Charge-offs |  | (1,072) | (1,788) | (2,928) | (2,595)
Recoveries |  | 869 | 1,693 | 3,104 | 2,291
Net (charge-offs) recoveries |  | (203) | (95) | 176 | (304)
(Recovery) provision |  | (1,614) | (5,588) | (17,519) | (1,951)
Balance at end of period |  | 28,874 | 38,008 | 28,874 | 38,008
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 25,789 | 29,745 | 25,789 | 29,745
Individually evaluated |  | 307 | 7 | 307 | 7
Total quantitative allowance |  | 26,096 | 29,752 | 26,096 | 29,752
Qualitative allowance |  | 2,778 | 8,256 | 2,778 | 8,256
Provision for credit losses |  | $ (1,614) | (5,588) | $ (17,519) | (1,951)
C & I | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  |  |  | 39
Balance at end of period |  |  | 18,320 |  | 18,320
C & I | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 43,691 |  | 12,659
C & I | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | (319) |  | 6,150
Balance at end of period |  |  | $ 9,284 |  | 9,284
CSFL |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Charge-offs | $ (158,200) |  |  |  |
CSFL | Unfunded Commitment |  |  |  |  |
Allowance for credit losses |  |  |  |  |
(Recovery) provision |  |  |  |  | 9,600
Quantitative allowance |  |  |  |  |
Provision for credit losses |  |  |  |  | $ 9,600

X
- Definition Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities. This amount is net of reduction in bad debt expense attributable to collections of loans and lease receivables which had previously been fully or partially charged off as bad debts. + References No definition available. + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were individually and collectively evaluated for impairment. + References No definition available. + Details
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- Definition Amount of qualitative allowance for credit loss on financing receivable. + References No definition available. + Details
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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + 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=124267575&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 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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