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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Risk Categories for Loans (Detail) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019
--- | --- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | $ 102,579 |  |
2019 | 975,341 |  |
2018 | 1,151,357 |  |
2017 | 738,222 |  |
2016 | 678,265 |  |
Prior | 920,940 |  |
Revolving Loans Amortized Cost Basis | 1,078,526 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 22,234 |  |
Total | 5,667,464 | $ 5,951,885 | $ 7,557,200
Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  | 5,782,383 |
Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  | 67,531 |
Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  | 99,836 |
Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  | 2,135 |
Traditional Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | 5,107,406 | 5,351,229 |
Commercial | Commercial and industrial |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 17,714 |  |
2019 | 145,790 |  |
2018 | 113,932 |  |
2017 | 69,779 |  |
2016 | 65,760 |  |
Prior | 140,931 |  |
Revolving Loans Amortized Cost Basis | 1,009,041 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 15,276 |  |
Total | 1,578,223 | 1,691,270 | 1,907,102
Commercial | Commercial and industrial | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 15,168 |  |
2019 | 121,892 |  |
2018 | 112,591 |  |
2017 | 69,585 |  |
2016 | 44,205 |  |
Prior | 138,326 |  |
Revolving Loans Amortized Cost Basis | 983,178 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 4,743 |  |
Total | 1,489,688 | 1,580,269 |
Commercial | Commercial and industrial | Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 6,473 |  |
2018 | 1,341 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 12,776 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 2,284 |  |
Total | 22,874 | 45,323 |
Commercial | Commercial and industrial | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 2,546 |  |
2019 | 17,425 |  |
2018 | 0 |  |
2017 | 194 |  |
2016 | 21,555 |  |
Prior | 2,605 |  |
Revolving Loans Amortized Cost Basis | 13,087 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 8,249 |  |
Total | 65,661 | 65,678 |
Commercial | Commercial and industrial | Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 0 | 0 |
Commercial | Commercial real estate |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 15,189 |  |
2019 | 154,592 |  |
2018 | 229,702 |  |
2017 | 73,134 |  |
2016 | 102,913 |  |
Prior | 224,895 |  |
Revolving Loans Amortized Cost Basis | 8,011 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 1,588 |  |
Total | 810,024 | 818,817 | 865,521
Commercial | Commercial real estate | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 15,189 |  |
2019 | 152,789 |  |
2018 | 229,702 |  |
2017 | 73,134 |  |
2016 | 102,913 |  |
Prior | 218,978 |  |
Revolving Loans Amortized Cost Basis | 8,011 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 1,588 |  |
Total | 802,304 | 813,846 |
Commercial | Commercial real estate | Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 1,803 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 742 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 2,545 | 2,532 |
Commercial | Commercial real estate | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 5,175 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 5,175 | 2,439 |
Commercial | Commercial real estate | Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 0 | 0 |
Commercial | Multifamily |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 49,455 |  |
2019 | 440,695 |  |
2018 | 347,864 |  |
2017 | 276,075 |  |
2016 | 151,406 |  |
Prior | 200,588 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 1,466,083 | 1,494,528 | 2,332,527
Commercial | Multifamily | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 49,455 |  |
2019 | 440,695 |  |
2018 | 338,904 |  |
2017 | 276,075 |  |
2016 | 151,406 |  |
Prior | 197,596 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 1,454,131 | 1,484,931 |
Commercial | Multifamily | Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 8,960 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 8,960 | 4,256 |
Commercial | Multifamily | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 2,992 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 2,992 | 5,341 |
Commercial | Multifamily | Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 0 | 0 |
Commercial | SBA |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 1,787 |  |
2019 | 16,067 |  |
2018 | 1,778 |  |
2017 | 6,589 |  |
2016 | 17,321 |  |
Prior | 22,932 |  |
Revolving Loans Amortized Cost Basis | 2,003 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 2,106 |  |
Total | 70,583 | 70,981 | 74,998
Commercial | SBA | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 1,787 |  |
2019 | 16,067 |  |
2018 | 1,388 |  |
2017 | 5,300 |  |
2016 | 15,105 |  |
Prior | 19,797 |  |
Revolving Loans Amortized Cost Basis | 1,667 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 515 |  |
Total | 61,626 | 60,982 |
Commercial | SBA | Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 229 |  |
2016 | 479 |  |
Prior | 987 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 7 |  |
Total | 1,702 | 2,760 |
Commercial | SBA | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 1,060 |  |
2016 | 1,529 |  |
Prior | 1,515 |  |
Revolving Loans Amortized Cost Basis | 336 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 1,197 |  |
Total | 5,637 | 5,621 |
Commercial | SBA | Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 390 |  |
2017 | 0 |  |
2016 | 208 |  |
Prior | 633 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 387 |  |
Total | 1,618 | 1,618 |
Commercial | Construction |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 12,948 |  |
2019 | 39,120 |  |
2018 | 84,631 |  |
2017 | 87,270 |  |
2016 | 3,978 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 227,947 | 231,350 | $ 211,549
Commercial | Construction | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 12,948 |  |
2019 | 39,120 |  |
2018 | 76,619 |  |
2017 | 87,270 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 215,957 | 229,771 |
Commercial | Construction | Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 8,012 |  |
2017 | 0 |  |
2016 | 3,978 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 11,990 | 1,579 |
Commercial | Construction | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 0 | 0 |
Commercial | Construction | Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 0 | 0 |
Commercial | Traditional Loans | Commercial and industrial |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | 1,578,223 | 1,691,270 |
Commercial | Traditional Loans | Commercial real estate |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | 810,024 | 818,817 |
Commercial | Traditional Loans | Multifamily |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | 1,466,083 | 1,494,528 |
Commercial | Traditional Loans | SBA |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | 70,583 | 70,981 |
Commercial | Traditional Loans | Construction |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | 227,947 | 231,350 |
Consumer | Single family residential mortgage |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 5,431 |  |
2019 | 178,982 |  |
2018 | 373,329 |  |
2017 | 225,375 |  |
2016 | 336,873 |  |
Prior | 326,228 |  |
Revolving Loans Amortized Cost Basis | 21,157 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 1,467,375 | 1,590,774 |
Consumer | Single family residential mortgage | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 5,431 |  |
2019 | 177,908 |  |
2018 | 371,674 |  |
2017 | 221,287 |  |
2016 | 328,033 |  |
Prior | 304,408 |  |
Revolving Loans Amortized Cost Basis | 21,157 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 1,429,898 | 1,559,253 |
Consumer | Single family residential mortgage | Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 1,157 |  |
2017 | 668 |  |
2016 | 5,070 |  |
Prior | 4,057 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 10,952 | 10,735 |
Consumer | Single family residential mortgage | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 1,074 |  |
2018 | 498 |  |
2017 | 3,420 |  |
2016 | 3,253 |  |
Prior | 17,763 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 26,008 | 20,269 |
Consumer | Single family residential mortgage | Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 517 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 517 | 517 |
Consumer | Other consumer |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 55 |  |
2019 | 95 |  |
2018 | 121 |  |
2017 | 0 |  |
2016 | 14 |  |
Prior | 5,366 |  |
Revolving Loans Amortized Cost Basis | 38,314 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 3,264 |  |
Total | 47,229 | 54,165 |
Consumer | Other consumer | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 55 |  |
2019 | 95 |  |
2018 | 86 |  |
2017 | 0 |  |
2016 | 14 |  |
Prior | 5,332 |  |
Revolving Loans Amortized Cost Basis | 37,992 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 2,941 |  |
Total | 46,515 | 53,331 |
Consumer | Other consumer | Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 224 |  |
Total | 224 | 346 |
Consumer | Other consumer | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 35 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 34 |  |
Revolving Loans Amortized Cost Basis | 322 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 99 |  |
Total | 490 | 488 |
Consumer | Other consumer | Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Revolving Loans Amortized Cost Basis Converted to Term | 0 |  |
Total | 0 | 0 |
Consumer | Traditional Loans | Single family residential mortgage |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | 909,211 | 992,417 |
Consumer | Traditional Loans | Other consumer |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | $ 45,335 | $ 51,866 |

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