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Loans Receivable and Allowance for Credit Losses (Allowance for Loan Losses and Recorded Investments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | $ 632,071 |  | $ 632,071 |  |  | $ 358,287 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 37,229,412 |  | 37,229,412 |  |  | 34,778,539 |  |
Provision for credit losses | 102,443 | $ 19,245 | 176,313 | $ 41,824 |  |  |  |
Commercial and industrial (“C&I”) |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 756 |  | 756 |  |  |  |  |
HELOCs |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 76 |  | 76 |  |  |  |  |
Commercial lending |  |  |  |  |  |  |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 27,924,906 |  | 27,924,906 |  |  | 25,914,252 |  |
Commercial lending | Commercial and industrial (“C&I”) |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 380,723 | 205,503 | 380,723 | 205,503 | $ 362,629 | 238,376 | $ 189,757 | $ 189,117
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 13,422,691 |  | 13,422,691 |  |  | 12,150,931 |  |
Provision for credit losses | 37,862 | 26,140 | 98,480 | 41,404 |  |  |  |
Total net (charge-offs) recoveries | 19,776 | 10,032 | 30,178 | 25,025 |  |  |  |
Commercial lending | Commercial real estate (“CRE”) |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 176,040 | 39,811 | 176,040 | 39,811 | 132,819 | 40,509 | 39,224 | 40,666
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 10,902,114 |  | 10,902,114 |  |  | 10,278,448 |  |
Provision for credit losses | 43,315 | (1,250) | 54,750 | (2,914) |  |  |  |
Total net (charge-offs) recoveries | 94 | (1,837) | (8,612) | (2,059) |  |  |  |
Commercial lending | Real estate loan | Multifamily residential |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 25,058 | 19,280 | 25,058 | 19,280 | 16,530 | 22,826 | 19,169 | 19,885
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 3,032,385 |  | 3,032,385 |  |  | 2,856,374 |  |
Provision for credit losses | 7,908 | 58 | 9,189 | (939) |  |  |  |
Total net (charge-offs) recoveries | (620) | (53) | (1,155) | (334) |  |  |  |
Commercial lending | Construction and land |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 18,551 | 22,961 | 18,551 | 22,961 | 11,018 | 19,404 | 22,349 | 20,290
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 567,716 |  | 567,716 |  |  | 628,499 |  |
Provision for credit losses | 7,526 | 173 | 9,008 | 2,169 |  |  |  |
Total net (charge-offs) recoveries | (7) | (439) | (28) | (502) |  |  |  |
Consumer lending |  |  |  |  |  |  |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 9,304,506 |  | 9,304,506 |  |  | 8,864,287 |  |
Consumer lending | Real estate loan | Single-family residential |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 25,314 | 32,763 | 25,314 | 32,763 | 26,822 | 28,527 | 35,759 | 31,340
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 7,660,094 |  | 7,660,094 |  |  | 7,108,590 |  |
Provision for credit losses | (1,667) | (3,068) | 33 | 1,349 |  |  |  |
Total net (charge-offs) recoveries | (159) | (72) | (424) | (74) |  |  |  |
Consumer lending | HELOCs |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 3,867 | 6,177 | 3,867 | 6,177 | 3,881 | 5,265 | 7,401 | 5,774
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 1,461,951 |  | 1,461,951 |  |  | 1,472,783 |  |
Provision for credit losses | 205 | (1,224) | 617 | 401 |  |  |  |
Total net (charge-offs) recoveries | 219 | 0 | 217 | (2) |  |  |  |
Consumer lending | Other consumer |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 2,518 | 4,130 | 2,518 | 4,130 | 3,304 | 3,380 | 4,235 | 4,250
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment | 182,461 |  | 182,461 |  |  | 282,914 |  |
Provision for credit losses | (849) | (98) | (3,121) | (99) |  |  |  |
Total net (charge-offs) recoveries | (63) | 7 | (38) | 21 |  |  |  |
Commercial and consumer lending |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses | 632,071 | 330,625 | 632,071 | 330,625 | $ 557,003 | 358,287 | $ 317,894 | $ 311,322
Recorded investment in loans |  |  |  |  |  |  |  |
Provision for credit losses | 94,300 | 20,731 | 168,956 | 41,371 |  |  |  |
Total net (charge-offs) recoveries | $ 19,240 | $ 7,638 | $ 20,138 | $ 22,075 |  |  |  |
Non-PCI Loans |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 5,593 |  |
Collectively evaluated for impairment |  |  |  |  |  | 352,694 |  |
Allowance for loan losses |  |  |  |  |  | 358,287 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 198,117 |  |
Collectively evaluated for impairment |  |  |  |  |  | 34,357,551 |  |
Loans held-for-investment |  |  |  |  |  | 34,555,668 |  |
Non-PCI Loans | Commercial lending |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 3,033 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 25,777,039 |  |
Non-PCI Loans | Commercial lending | Commercial and industrial (“C&I”) |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 2,881 |  |
Collectively evaluated for impairment |  |  |  |  |  | 235,495 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 114,042 |  |
Collectively evaluated for impairment |  |  |  |  |  | 12,035,079 |  |
Loans held-for-investment |  |  |  |  |  | 12,149,121 |  |
Non-PCI Loans | Commercial lending | Commercial real estate (“CRE”) |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 97 |  |
Collectively evaluated for impairment |  |  |  |  |  | 40,412 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 21,618 |  |
Collectively evaluated for impairment |  |  |  |  |  | 10,143,629 |  |
Loans held-for-investment |  |  |  |  |  | 10,165,247 |  |
Non-PCI Loans | Commercial lending | Real estate loan | Multifamily residential |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 55 |  |
Collectively evaluated for impairment |  |  |  |  |  | 22,771 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 4,464 |  |
Collectively evaluated for impairment |  |  |  |  |  | 2,829,748 |  |
Loans held-for-investment |  |  |  |  |  | 2,834,212 |  |
Non-PCI Loans | Commercial lending | Construction and land |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 0 |  |
Collectively evaluated for impairment |  |  |  |  |  | 19,404 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 19,691 |  |
Collectively evaluated for impairment |  |  |  |  |  | 608,768 |  |
Loans held-for-investment |  |  |  |  |  | 628,459 |  |
Non-PCI Loans | Consumer lending |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 2,560 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 8,778,629 |  |
Non-PCI Loans | Consumer lending | Real estate loan | Single-family residential |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 35 |  |
Collectively evaluated for impairment |  |  |  |  |  | 28,492 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 22,211 |  |
Collectively evaluated for impairment |  |  |  |  |  | 7,006,768 |  |
Loans held-for-investment |  |  |  |  |  | 7,028,979 |  |
Non-PCI Loans | Consumer lending | HELOCs |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 8 |  |
Collectively evaluated for impairment |  |  |  |  |  | 5,257 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 13,574 |  |
Collectively evaluated for impairment |  |  |  |  |  | 1,453,162 |  |
Loans held-for-investment |  |  |  |  |  | 1,466,736 |  |
Non-PCI Loans | Consumer lending | Other consumer |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 2,517 |  |
Collectively evaluated for impairment |  |  |  |  |  | 863 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |  | 2,517 |  |
Collectively evaluated for impairment |  |  |  |  |  | 280,397 |  |
Loans held-for-investment |  |  |  |  |  | 282,914 |  |
PCI Loans |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 222,871 |  |
PCI Loans | Commercial lending |  |  |  |  |  |  |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 137,213 |  |
PCI Loans | Commercial lending | Commercial and industrial (“C&I”) |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 1,810 |  |
PCI Loans | Commercial lending | Commercial real estate (“CRE”) |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 113,201 |  |
PCI Loans | Commercial lending | Real estate loan | Multifamily residential |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 22,162 |  |
PCI Loans | Commercial lending | Construction and land |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 40 |  |
PCI Loans | Consumer lending |  |  |  |  |  |  |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 85,658 |  |
PCI Loans | Consumer lending | Real estate loan | Single-family residential |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 79,611 |  |
PCI Loans | Consumer lending | HELOCs |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | 6,047 |  |
PCI Loans | Consumer lending | Other consumer |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  | 0 |  |
Recorded investment in loans |  |  |  |  |  |  |  |
Loans held-for-investment |  |  |  |  |  | $ 0 |  |

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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 The balance of financing receivables 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 (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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