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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 | 6 Months Ended
--- | --- | --- | ---
Jun. 07, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | $ 406,460 | $ 144,785 | $ 457,309 | $ 56,927
Charge-offs |  | (5,662) | (2,431) | (9,036) | (5,654)
Recoveries |  | 3,548 | 2,330 | 6,943 | 4,239
Net (charge-offs) recoveries |  | (2,114) | (101) | (2,093) | (1,415)
(Recovery) provision |  | (53,945) | 29,536 | (104,815) | 64,270
Balance at end of period |  | 350,401 | 434,608 | 350,401 | 434,608
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 323,558 | 356,187 | 323,558 | 356,187
Individually evaluated |  | 1,885 | 10,904 | 1,885 | 10,904
Total quantitative allowance |  | 325,443 | 367,091 | 325,443 | 367,091
Qualitative allowance |  | 24,958 | 67,517 | 24,958 | 67,517
Provision for credit losses |  | (53,945) | 29,536 | (104,815) | 64,270
Unfunded Commitment |  |  |  |  |
Allowance for credit losses |  |  |  |  |
(Recovery) provision |  | 4,800 | 12,500 | 12,400 | 14,300
Quantitative allowance |  |  |  |  |
Provision for credit losses |  | 4,800 | 12,500 | 12,400 | 14,300
Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 150,946 |  | 3,408
Balance at end of period |  |  | 150,946 |  | 150,946
Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 405,173 |  | 111,365
Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 109,442 |  | 51,030
Balance at end of period |  |  | 109,442 |  | 109,442
Residential Mortgage Sr. |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 63,042 | 18,214 | 63,561 | 6,128
Charge-offs |  | (69) | (79) | (189) | (383)
Recoveries |  | 343 | 315 | 771 | 591
Net (charge-offs) recoveries |  | 274 | 236 | 582 | 208
(Recovery) provision |  | (7,496) | 2,418 | (8,323) | 8,671
Balance at end of period |  | 55,820 | 67,486 | 55,820 | 67,486
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 50,424 | 59,101 | 50,424 | 59,101
Individually evaluated |  | 88 | 210 | 88 | 210
Total quantitative allowance |  | 50,512 | 59,311 | 50,512 | 59,311
Qualitative allowance |  | 5,308 | 8,175 | 5,308 | 8,175
Provision for credit losses |  | (7,496) | 2,418 | (8,323) | 8,671
Residential Mortgage Sr. | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 29,906 |  | 406
Balance at end of period |  |  | 29,906 |  | 29,906
Residential Mortgage Sr. | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 64,832 |  | 11,989
Residential Mortgage Sr. | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 16,712 |  | 5,455
Balance at end of period |  |  | 16,712 |  | 16,712
Residential Mortgage Jr. |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 1,190 | 239 | 1,238 | 15
Charge-offs |  |  | (24) |  | (24)
Recoveries |  | 50 | 55 | 83 | 146
Net (charge-offs) recoveries |  | 50 | 31 | 83 | 122
(Recovery) provision |  | (415) | (219) | (496) | (100)
Balance at end of period |  | 825 | 1,081 | 825 | 1,081
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 825 | 1,143 | 825 | 1,143
Total quantitative allowance |  | 825 | 1,143 | 825 | 1,143
Qualitative allowance |  |  | (62) |  | (62)
Provision for credit losses |  | (415) | (219) | (496) | (100)
Residential Mortgage Jr. | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 804 |  | 3
Balance at end of period |  |  | 804 |  | 804
Residential Mortgage Jr. | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 1,269 |  | 29
Residential Mortgage Jr. | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 226 |  | 11
Balance at end of period |  |  | 226 |  | 226
HELOC |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 16,003 | 12,092 | 16,698 | 4,327
Charge-offs |  | (517) | (67) | (686) | (681)
Recoveries |  | 766 | 211 | 1,183 | 623
Net (charge-offs) recoveries |  | 249 | 144 | 497 | (58)
(Recovery) provision |  | (1,702) | 5,040 | (2,645) | 8,869
Balance at end of period |  | 14,550 | 26,622 | 14,550 | 26,622
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 12,350 | 23,579 | 12,350 | 23,579
Individually evaluated |  | 1,140 | 299 | 1,140 | 299
Total quantitative allowance |  | 13,490 | 23,878 | 13,490 | 23,878
Qualitative allowance |  | 1,060 | 2,744 | 1,060 | 2,744
Provision for credit losses |  | (1,702) | 5,040 | (2,645) | 8,869
HELOC | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 5,119 |  | 289
Balance at end of period |  |  | 5,119 |  | 5,119
HELOC | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 21,438 |  | 8,465
HELOC | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 4,227 |  | 3,849
Balance at end of period |  |  | 4,227 |  | 4,227
Residential Construction |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 3,892 | 2,135 | 4,914 | 815
Charge-offs |  |  | (31) |  | (31)
Recoveries |  |  |  | 1 |
Net (charge-offs) recoveries |  |  | (31) | 1 | (31)
(Recovery) provision |  | 596 | 996 | (427) | 1,537
Balance at end of period |  | 4,488 | 9,295 | 4,488 | 9,295
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 4,438 | 8,922 | 4,438 | 8,922
Total quantitative allowance |  | 4,438 | 8,922 | 4,438 | 8,922
Qualitative allowance |  | 50 | 373 | 50 | 373
Provision for credit losses |  | 596 | 996 | (427) | 1,537
Residential Construction | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 1,302 |  |
Balance at end of period |  |  | 1,302 |  | 1,302
Residential Construction | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 8,330 |  | 1,594
Residential Construction | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 4,893 |  | 779
Balance at end of period |  |  | 4,893 |  | 4,893
Other C&D |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 55,337 | 16,777 | 67,197 | 6,211
Charge-offs |  | (77) | (69) | (87) | (174)
Recoveries |  | 229 | 569 | 430 | 849
Net (charge-offs) recoveries |  | 152 | 500 | 343 | 675
(Recovery) provision |  | (10,001) | 2,927 | (22,052) | 7,379
Balance at end of period |  | 45,488 | 33,912 | 45,488 | 33,912
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 45,472 | 30,750 | 45,472 | 30,750
Individually evaluated |  | 16 | 76 | 16 | 76
Total quantitative allowance |  | 45,488 | 30,826 | 45,488 | 30,826
Qualitative allowance |  |  | 3,086 |  | 3,086
Provision for credit losses |  | (10,001) | 2,927 | (22,052) | 7,379
Other C&D | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 6,035 |  | 351
Balance at end of period |  |  | 6,035 |  | 6,035
Other C&D | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 30,485 |  | 12,150
Other C&D | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 7,673 |  | 5,588
Balance at end of period |  |  | 7,673 |  | 7,673
Consumer |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 27,883 | 8,999 | 26,562 | 4,350
Charge-offs |  | (1,486) | (1,122) | (3,635) | (2,908)
Recoveries |  | 531 | 428 | 1,041 | 896
Net (charge-offs) recoveries |  | (955) | (694) | (2,594) | (2,012)
(Recovery) provision |  | (1,231) | 1,909 | 1,729 | 3,717
Balance at end of period |  | 25,697 | 20,170 | 25,697 | 20,170
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 21,195 | 15,828 | 21,195 | 15,828
Total quantitative allowance |  | 21,195 | 15,828 | 21,195 | 15,828
Qualitative allowance |  | 4,502 | 4,342 | 4,502 | 4,342
Provision for credit losses |  | (1,231) | 1,909 | 1,729 | 3,717
Consumer | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 6,120 |  | 669
Balance at end of period |  |  | 6,120 |  | 6,120
Consumer | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 18,955 |  | 8,509
Consumer | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 3,836 |  | 3,490
Balance at end of period |  |  | 3,836 |  | 3,836
Multifamily |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 5,884 | 4,557 | 7,887 | 1,557
Recoveries |  | 3 | 3 | 3 | 55
Net (charge-offs) recoveries |  | 3 | 3 | 3 | 55
(Recovery) provision |  | (4) | 1,118 | (2,007) | 2,578
Balance at end of period |  | 5,883 | 7,792 | 5,883 | 7,792
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 5,883 | 4,556 | 5,883 | 4,556
Total quantitative allowance |  | 5,883 | 4,556 | 5,883 | 4,556
Qualitative allowance |  |  | 3,236 |  | 3,236
Provision for credit losses |  | (4) | 1,118 | (2,007) | 2,578
Multifamily | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 902 |  | 97
Balance at end of period |  |  | 902 |  | 902
Multifamily | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 6,671 |  | 3,045
Multifamily | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 1,212 |  | 1,391
Balance at end of period |  |  | 1,212 |  | 1,212
Municipal |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 1,544 | 1,889 | 1,510 | 956
(Recovery) provision |  | (481) | 264 | (447) | 283
Balance at end of period |  | 1,063 | 4,075 | 1,063 | 4,075
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 520 | 2,641 | 520 | 2,641
Total quantitative allowance |  | 520 | 2,641 | 520 | 2,641
Qualitative allowance |  | 543 | 1,434 | 543 | 1,434
Provision for credit losses |  | (481) | 264 | (447) | 283
Municipal | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 1,003 |  |
Balance at end of period |  |  | 1,003 |  | 1,003
Municipal | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 3,811 |  | 1,870
Municipal | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 919 |  | 914
Balance at end of period |  |  | 919 |  | 919
CRE Owner Occupied |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 90,660 | 23,792 | 97,104 | 10,879
Charge-offs |  | (2,021) | (308) | (2,048) | (623)
Recoveries |  | 131 | 340 | 464 | 428
Net (charge-offs) recoveries |  | (1,890) | 32 | (1,584) | (195)
(Recovery) provision |  | (13,278) | 5,657 | (20,028) | 8,394
Balance at end of period |  | 75,492 | 90,206 | 75,492 | 90,206
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 72,212 | 78,715 | 72,212 | 78,715
Individually evaluated |  | 333 | 5,319 | 333 | 5,319
Total quantitative allowance |  | 72,545 | 84,034 | 72,545 | 84,034
Qualitative allowance |  | 2,947 | 6,172 | 2,947 | 6,172
Provision for credit losses |  | (13,278) | 5,657 | (20,028) | 8,394
CRE Owner Occupied | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 35,332 |  | 898
Balance at end of period |  |  | 35,332 |  | 35,332
CRE Owner Occupied | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 84,517 |  | 21,282
CRE Owner Occupied | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 25,393 |  | 9,505
Balance at end of period |  |  | 25,393 |  | 25,393
Non Owner Occupied CRE |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 107,559 | 41,302 | 124,421 | 15,219
Charge-offs |  | (341) | (23) | (535) | (23)
Recoveries |  | 411 | 32 | 732 | 76
Net (charge-offs) recoveries |  | 70 | 9 | 197 | 53
(Recovery) provision |  | (17,225) | 8,711 | (34,214) | 20,196
Balance at end of period |  | 90,404 | 130,874 | 90,404 | 130,874
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 85,044 | 101,998 | 85,044 | 101,998
Individually evaluated |  |  | 3,890 |  | 3,890
Total quantitative allowance |  | 85,044 | 105,888 | 85,044 | 105,888
Qualitative allowance |  | 5,360 | 24,986 | 5,360 | 24,986
Provision for credit losses |  | (17,225) | 8,711 | (34,214) | 20,196
Non Owner Occupied CRE | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 45,785 |  | 656
Balance at end of period |  |  | 45,785 |  | 45,785
Non Owner Occupied CRE | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 122,154 |  | 29,773
Non Owner Occupied CRE | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 35,067 |  | 13,898
Balance at end of period |  |  | 35,067 |  | 35,067
C & I |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  | 33,466 | 14,789 | 46,217 | 6,470
Charge-offs |  | (1,151) | (708) | (1,856) | (807)
Recoveries |  | 1,084 | 377 | 2,235 | 575
Net (charge-offs) recoveries |  | (67) | (331) | 379 | (232)
(Recovery) provision |  | (2,708) | 715 | (15,905) | 2,746
Balance at end of period |  | 30,691 | 43,095 | 30,691 | 43,095
Quantitative allowance |  |  |  |  |
Collectively evaluated |  | 25,195 | 28,954 | 25,195 | 28,954
Individually evaluated |  | 308 | 1,110 | 308 | 1,110
Total quantitative allowance |  | 25,503 | 30,064 | 25,503 | 30,064
Qualitative allowance |  | 5,188 | 13,031 | 5,188 | 13,031
Provision for credit losses |  | $ (2,708) | 715 | $ (15,905) | 2,746
C & I | Initial PCD Allowance |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 18,638 |  | 39
Balance at end of period |  |  | 18,638 |  | 18,638
C & I | Adjustments |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 42,711 |  | 12,659
C & I | Adjustments | ASU 2016-13 |  |  |  |  |
Allowance for credit losses |  |  |  |  |
Balance at beginning of period |  |  | 9,284 |  | 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 |  | 9,600
Quantitative allowance |  |  |  |  |
Provision for credit losses |  |  | $ 9,600 |  | $ 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=121611835&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=121599878&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=121599337&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=121599337&loc=SL82919249-210447 + 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=121611835&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=121611835&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=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 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121599337&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=121611835&loc=SL6953423-111524 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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