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Loans Receivable and Allowance for Credit Losses (Aging Analysis on Loans Held-for-Investment) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | $ 93,181 | $ 215,154
Total loans | 41,693,781 | 38,390,955
Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 68,965 | 184,153
Total loans | 30,327,746 | 28,440,027
Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 59,023 | 133,939
Total loans | 14,150,608 | 13,631,726
Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 9,498 | 46,546
Total loans | 12,155,047 | 11,174,611
Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 444 | 3,668
Total loans | 3,675,605 | 3,033,998
Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 0 | 0
Total loans | 346,486 | 599,692
Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 9,942 | 50,214
Total loans | 16,177,138 | 14,808,301
Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 24,216 | 31,001
Total loans | 11,366,035 | 9,950,928
Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 15,720 | 16,814
Total loans | 9,093,702 | 8,185,953
Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 8,444 | 11,696
Total loans | 2,144,821 | 1,601,716
Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 24,164 | 28,510
Total loans | 11,238,523 | 9,787,669
Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Financing receivable, nonaccrual | 52 | 2,491
Total loans | 127,512 | 163,259
Current Accruing Loans |  |
Nonaccrual and Past Due Loans |  |
Total loans | 41,555,745 | 38,125,211
Current Accruing Loans | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 30,238,648 | 28,224,064
Current Accruing Loans | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Total loans | 14,080,516 | 13,488,070
Current Accruing Loans | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 12,141,827 | 11,127,690
Current Accruing Loans | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Total loans | 3,669,819 | 3,028,512
Current Accruing Loans | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Total loans | 346,486 | 579,792
Current Accruing Loans | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 16,158,132 | 14,735,994
Current Accruing Loans | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 11,317,097 | 9,901,147
Current Accruing Loans | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Total loans | 9,059,222 | 8,156,645
Current Accruing Loans | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Total loans | 2,130,523 | 1,583,968
Current Accruing Loans | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Total loans | 11,189,745 | 9,740,613
Current Accruing Loans | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Total loans | 127,352 | 160,534
Accruing Loans 30-59 Days Past Due |  |
Nonaccrual and Past Due Loans |  |
Total loans | 31,091 | 44,136
Accruing Loans 30-59 Days Past Due | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 16,025 | 31,086
Accruing Loans 30-59 Days Past Due | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Total loans | 6,983 | 8,993
Accruing Loans 30-59 Days Past Due | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 3,722 | 375
Accruing Loans 30-59 Days Past Due | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Total loans | 5,320 | 1,818
Accruing Loans 30-59 Days Past Due | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Total loans | 0 | 19,900
Accruing Loans 30-59 Days Past Due | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 9,042 | 22,093
Accruing Loans 30-59 Days Past Due | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 15,066 | 13,050
Accruing Loans 30-59 Days Past Due | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Total loans | 10,191 | 9,911
Accruing Loans 30-59 Days Past Due | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Total loans | 4,776 | 2,922
Accruing Loans 30-59 Days Past Due | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Total loans | 14,967 | 12,833
Accruing Loans 30-59 Days Past Due | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Total loans | 99 | 217
Accruing Loans 60-89 Days Past Due |  |
Nonaccrual and Past Due Loans |  |
Total loans | 13,764 | 6,454
Accruing Loans 60-89 Days Past Due | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 4,108 | 724
Accruing Loans 60-89 Days Past Due | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Total loans | 4,086 | 724
Accruing Loans 60-89 Days Past Due | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 0 | 0
Accruing Loans 60-89 Days Past Due | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Total loans | 22 | 0
Accruing Loans 60-89 Days Past Due | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Total loans | 0 | 0
Accruing Loans 60-89 Days Past Due | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 22 | 0
Accruing Loans 60-89 Days Past Due | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 9,656 | 5,730
Accruing Loans 60-89 Days Past Due | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Total loans | 8,569 | 2,583
Accruing Loans 60-89 Days Past Due | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Total loans | 1,078 | 3,130
Accruing Loans 60-89 Days Past Due | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Total loans | 9,647 | 5,713
Accruing Loans 60-89 Days Past Due | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Total loans | 9 | 17
Total Accruing Past Due Loans |  |
Nonaccrual and Past Due Loans |  |
Total loans | 44,855 | 50,590
Total Accruing Past Due Loans | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 20,133 | 31,810
Total Accruing Past Due Loans | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Total loans | 11,069 | 9,717
Total Accruing Past Due Loans | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 3,722 | 375
Total Accruing Past Due Loans | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Total loans | 5,342 | 1,818
Total Accruing Past Due Loans | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Total loans | 0 | 19,900
Total Accruing Past Due Loans | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Total loans | 9,064 | 22,093
Total Accruing Past Due Loans | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Total loans | 24,722 | 18,780
Total Accruing Past Due Loans | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Total loans | 18,760 | 12,494
Total Accruing Past Due Loans | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Total loans | 5,854 | 6,052
Total Accruing Past Due Loans | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Total loans | 24,614 | 18,546
Total Accruing Past Due Loans | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Total loans | $ 108 | $ 234

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