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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses and Recorded Investment Excluding Accrued Interest in Loans (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | $ 81,030 |  |
(Reversal of) provision for credit losses | (1,107) | $ 991 | $ 15,761
Balance at end of period | 79,353 | 81,030 |
Commercial real estate |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 84,213 |  | 61,713
Charge-offs | (565) |  | (2,076)
Recoveries of loans previously charged off | 172 |  | 350
Net (charge-offs) recoveries | (393) |  | (1,726)
(Reversal of) provision for credit losses | (1,107) |  | 15,761
Balance at end of period | 82,713 | 84,213 | 82,131
Allowance for Loan Losses |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 81,030 |  | 57,649
Charge-offs | (565) |  | (2,076)
Recoveries of loans previously charged off | 172 |  | 350
Net (charge-offs) recoveries | (393) |  | (1,726)
(Reversal of) provision for credit losses | (1,284) |  | 14,711
Balance at end of period | 79,353 | 81,030 | 78,243
Allowance for Loan Losses | Commercial real estate |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 81,030 |  | 57,649
Charge-offs | (565) |  | (2,076)
Recoveries of loans previously charged off | 172 |  | 350
Net (charge-offs) recoveries | (393) |  | (1,726)
(Reversal of) provision for credit losses | (1,284) |  | 14,711
Balance at end of period | 79,353 | 81,030 | 78,243
Allowance for Loan Losses | Commercial | Commercial and industrial |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 20,608 |  | 22,353
Charge-offs | (565) |  | (1,164)
Recoveries of loans previously charged off | 45 |  | 30
Net (charge-offs) recoveries | (520) |  | (1,134)
(Reversal of) provision for credit losses | (385) |  | 1,692
Balance at end of period | 19,703 | 20,608 | 23,573
Allowance for Loan Losses | Commercial | Commercial real estate |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 19,074 |  | 5,941
Charge-offs | 0 |  | 0
Recoveries of loans previously charged off | 0 |  | 0
Net (charge-offs) recoveries | 0 |  | 0
(Reversal of) provision for credit losses | (1,974) |  | 2,832
Balance at end of period | 17,100 | 19,074 | 13,620
Allowance for Loan Losses | Commercial | Multifamily |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 22,512 |  | 11,405
Charge-offs | 0 |  | 0
Recoveries of loans previously charged off | 0 |  | 0
Net (charge-offs) recoveries | 0 |  | 0
(Reversal of) provision for credit losses | 1,372 |  | 6,858
Balance at end of period | 23,884 | 22,512 | 20,072
Allowance for Loan Losses | Commercial | SBA |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 3,145 |  | 3,120
Charge-offs | 0 |  | (356)
Recoveries of loans previously charged off | 126 |  | 121
Net (charge-offs) recoveries | 126 |  | (235)
(Reversal of) provision for credit losses | 180 |  | 379
Balance at end of period | 3,451 | 3,145 | 3,652
Allowance for Loan Losses | Commercial | Construction |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 5,849 |  | 3,906
Charge-offs | 0 |  | 0
Recoveries of loans previously charged off | 0 |  | 0
Net (charge-offs) recoveries | 0 |  | 0
(Reversal of) provision for credit losses | (297) |  | 3,043
Balance at end of period | 5,552 | 5,849 | 7,052
Allowance for Loan Losses | Consumer | Single Family Residential Mortgage |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 9,191 |  | 10,486
Charge-offs | 0 |  | (552)
Recoveries of loans previously charged off | 0 |  | 151
Net (charge-offs) recoveries | 0 |  | (401)
(Reversal of) provision for credit losses | (30) |  | (72)
Balance at end of period | 9,161 | 9,191 | 9,593
Allowance for Loan Losses | Consumer | Other Consumer |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 651 |  | 438
Charge-offs | 0 |  | (4)
Recoveries of loans previously charged off | 1 |  | 48
Net (charge-offs) recoveries | 1 |  | 44
(Reversal of) provision for credit losses | (150) |  | (21)
Balance at end of period | 502 | 651 | 681
Impact of adopting ASU 2016-13 | Commercial real estate |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | 0 |  | 6,383
Balance at end of period |  | 0 |
Impact of adopting ASU 2016-13 | Allowance for Loan Losses |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | 7,609
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Commercial real estate |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period | $ 0 |  | 7,609
Balance at end of period |  | $ 0 |
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Commercial | Commercial and industrial |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | 662
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Commercial | Commercial real estate |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | 4,847
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Commercial | Multifamily |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | 1,809
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Commercial | SBA |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | 388
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Commercial | Construction |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | 103
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Consumer | Single Family Residential Mortgage |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | (420)
Impact of adopting ASU 2016-13 | Allowance for Loan Losses | Consumer | Other Consumer |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at beginning of period |  |  | $ 220

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- Definition Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: 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 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (4) + 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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