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Loans Receivable and Allowance for Credit Losses (Impaired Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2019 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses |  |  | $ 632,071 |  | $ 358,287 |  |
Commercial and industrial (“C&I”) |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses |  |  | 756 |  |  |  |
HELOCs |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses |  |  | 76 |  |  |  |
Commercial lending |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Collateral dependent loan |  |  | 88,100 |  |  |  |
Commercial lending | Commercial and industrial (“C&I”) |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses | $ 205,503 | $ 205,503 | 380,723 | $ 362,629 | 238,376 | $ 189,757 | $ 189,117
Commercial lending | Commercial real estate (“CRE”) |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses | 39,811 | 39,811 | 176,040 | 132,819 | 40,509 | 39,224 | 40,666
Commercial lending | Real estate loan | Multifamily residential |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses | 19,280 | 19,280 | 25,058 | 16,530 | 22,826 | 19,169 | 19,885
Commercial lending | Construction and land |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses | 22,961 | 22,961 | 18,551 | 11,018 | 19,404 | 22,349 | 20,290
Consumer lending |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Collateral dependent loan |  |  | 23,800 |  |  |  |
Consumer lending | Real estate loan | Single-family residential |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses | 32,763 | 32,763 | 25,314 | 26,822 | 28,527 | 35,759 | 31,340
Consumer lending | HELOCs |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses | 6,177 | 6,177 | 3,867 | 3,881 | 5,265 | 7,401 | 5,774
Consumer lending | Other consumer |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Allowance for loan losses | 4,130 | 4,130 | $ 2,518 | $ 3,304 | 3,380 | $ 4,235 | $ 4,250
Non-PCI Loans |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 266,772 |  |
Recorded Investment With No Allowance |  |  |  |  | 129,748 |  |
Recorded Investment With Allowance |  |  |  |  | 68,369 |  |
Total Recorded Investment |  |  |  |  | 198,117 |  |
Related Allowance |  |  |  |  | 5,593 |  |
Average Recorded Investment | 257,108 | 269,604 |  |  |  |  |
Recognized Interest Income | 1,444 | 2,500 |  |  |  |  |
Allowance for loan losses |  |  |  |  | 358,287 |  |
Non-PCI Loans | Commercial lending |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 226,918 |  |
Recorded Investment With No Allowance |  |  |  |  | 115,116 |  |
Recorded Investment With Allowance |  |  |  |  | 44,699 |  |
Total Recorded Investment |  |  |  |  | 159,815 |  |
Related Allowance |  |  |  |  | 3,033 |  |
Average Recorded Investment | 217,782 | 226,892 |  |  |  |  |
Recognized Interest Income | 1,277 | 2,186 |  |  |  |  |
Non-PCI Loans | Commercial lending | Commercial and industrial (“C&I”) |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 174,656 |  |
Recorded Investment With No Allowance |  |  |  |  | 73,956 |  |
Recorded Investment With Allowance |  |  |  |  | 40,086 |  |
Total Recorded Investment |  |  |  |  | 114,042 |  |
Related Allowance |  |  |  |  | 2,881 |  |
Average Recorded Investment | 182,689 | 189,553 |  |  |  |  |
Recognized Interest Income | 1,081 | 1,816 |  |  |  |  |
Non-PCI Loans | Commercial lending | Commercial real estate (“CRE”) |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 27,601 |  |
Recorded Investment With No Allowance |  |  |  |  | 20,098 |  |
Recorded Investment With Allowance |  |  |  |  | 1,520 |  |
Total Recorded Investment |  |  |  |  | 21,618 |  |
Related Allowance |  |  |  |  | 97 |  |
Average Recorded Investment | 29,241 | 31,456 |  |  |  |  |
Recognized Interest Income | 135 | 249 |  |  |  |  |
Non-PCI Loans | Commercial lending | Real estate loan | Multifamily residential |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 4,965 |  |
Recorded Investment With No Allowance |  |  |  |  | 1,371 |  |
Recorded Investment With Allowance |  |  |  |  | 3,093 |  |
Total Recorded Investment |  |  |  |  | 4,464 |  |
Related Allowance |  |  |  |  | 55 |  |
Average Recorded Investment | 5,852 | 5,883 |  |  |  |  |
Recognized Interest Income | 61 | 121 |  |  |  |  |
Non-PCI Loans | Commercial lending | Construction and land |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 19,696 |  |
Recorded Investment With No Allowance |  |  |  |  | 19,691 |  |
Recorded Investment With Allowance |  |  |  |  | 0 |  |
Total Recorded Investment |  |  |  |  | 19,691 |  |
Related Allowance |  |  |  |  | 0 |  |
Non-PCI Loans | Commercial lending | Total CRE |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 52,262 |  |
Recorded Investment With No Allowance |  |  |  |  | 41,160 |  |
Recorded Investment With Allowance |  |  |  |  | 4,613 |  |
Total Recorded Investment |  |  |  |  | 45,773 |  |
Related Allowance |  |  |  |  | 152 |  |
Average Recorded Investment | 35,093 | 37,339 |  |  |  |  |
Recognized Interest Income | 196 | 370 |  |  |  |  |
Non-PCI Loans | Consumer lending |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 39,854 |  |
Recorded Investment With No Allowance |  |  |  |  | 14,632 |  |
Recorded Investment With Allowance |  |  |  |  | 23,670 |  |
Total Recorded Investment |  |  |  |  | 38,302 |  |
Related Allowance |  |  |  |  | 2,560 |  |
Average Recorded Investment | 39,326 | 42,712 |  |  |  |  |
Recognized Interest Income | 167 | 314 |  |  |  |  |
Non-PCI Loans | Consumer lending | Real estate loan | Single-family residential |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 23,626 |  |
Recorded Investment With No Allowance |  |  |  |  | 8,507 |  |
Recorded Investment With Allowance |  |  |  |  | 13,704 |  |
Total Recorded Investment |  |  |  |  | 22,211 |  |
Related Allowance |  |  |  |  | 35 |  |
Average Recorded Investment | 23,247 | 24,865 |  |  |  |  |
Recognized Interest Income | 129 | 258 |  |  |  |  |
Non-PCI Loans | Consumer lending | HELOCs |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 13,711 |  |
Recorded Investment With No Allowance |  |  |  |  | 6,125 |  |
Recorded Investment With Allowance |  |  |  |  | 7,449 |  |
Total Recorded Investment |  |  |  |  | 13,574 |  |
Related Allowance |  |  |  |  | 8 |  |
Average Recorded Investment | 13,564 | 15,321 |  |  |  |  |
Recognized Interest Income | 38 | 56 |  |  |  |  |
Non-PCI Loans | Consumer lending | Total residential mortgage |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 37,337 |  |
Recorded Investment With No Allowance |  |  |  |  | 14,632 |  |
Recorded Investment With Allowance |  |  |  |  | 21,153 |  |
Total Recorded Investment |  |  |  |  | 35,785 |  |
Related Allowance |  |  |  |  | 43 |  |
Average Recorded Investment | 36,811 | 40,186 |  |  |  |  |
Recognized Interest Income | 167 | 314 |  |  |  |  |
Non-PCI Loans | Consumer lending | Other consumer |  |  |  |  |  |  |
Impaired loans disclosures |  |  |  |  |  |  |
Unpaid Principal Balance |  |  |  |  | 2,517 |  |
Recorded Investment With No Allowance |  |  |  |  | 0 |  |
Recorded Investment With Allowance |  |  |  |  | 2,517 |  |
Total Recorded Investment |  |  |  |  | 2,517 |  |
Related Allowance |  |  |  |  | $ 2,517 |  |
Average Recorded Investment | 2,515 | 2,526 |  |  |  |  |
Recognized Interest Income | $ 0 | $ 0 |  |  |  |  |

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