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Loans Receivable and Allowance for Credit Losses (Non-PCI Impaired Loans) (Details) - Non-PCI Loans - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Impaired loans disclosures |  |  |
Unpaid Principal Balance | $ 206,532 |  | $ 211,442
Recorded Investment With No Allowance | 88,232 |  | 79,064
Recorded Investment With Allowance | 85,499 |  | 91,823
Total Recorded Investment | 173,731 |  | 170,887
Related Allowance | 32,319 |  | 19,895
Average Recorded Investment | 174,314 | $ 221,601 |
Recognized Interest Income | 3,315 | 328 |
Commercial lending |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 178,781 |  | 187,966
Recorded Investment With No Allowance | 80,858 |  | 76,777
Recorded Investment With Allowance | 66,429 |  | 72,073
Total Recorded Investment | 147,287 |  | 148,850
Related Allowance | 29,282 |  | 16,866
Average Recorded Investment | 148,054 | 201,972 |
Recognized Interest Income | 2,953 | 294 |
Commercial lending | Commercial and industrial (“C&I”) |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 123,336 |  | 130,773
Recorded Investment With No Allowance | 43,192 |  | 36,086
Recorded Investment With Allowance | 55,789 |  | 62,599
Total Recorded Investment | 98,981 |  | 98,685
Related Allowance | 28,564 |  | 16,094
Average Recorded Investment | 99,457 | 143,214 |
Recognized Interest Income | 1,900 | 221 |
Commercial lending | Commercial real estate (“CRE”) |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 40,935 |  | 41,248
Recorded Investment With No Allowance | 27,210 |  | 28,699
Recorded Investment With Allowance | 7,706 |  | 6,857
Total Recorded Investment | 34,916 |  | 35,556
Related Allowance | 615 |  | 684
Average Recorded Investment | 35,166 | 44,772 |
Recognized Interest Income | 868 | 35 |
Commercial lending | Real estate loan | Multifamily |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 9,819 |  | 11,164
Recorded Investment With No Allowance | 6,483 |  | 8,019
Recorded Investment With Allowance | 2,934 |  | 2,617
Total Recorded Investment | 9,417 |  | 10,636
Related Allowance | 103 |  | 88
Average Recorded Investment | 9,458 | 9,269 |
Recognized Interest Income | 116 | 38 |
Commercial lending | Construction and land |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 4,691 |  | 4,781
Recorded Investment With No Allowance | 3,973 |  | 3,973
Recorded Investment With Allowance | 0 |  | 0
Total Recorded Investment | 3,973 |  | 3,973
Related Allowance | 0 |  | 0
Average Recorded Investment | 3,973 | 4,717 |
Recognized Interest Income | 69 | 0 |
Consumer lending |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 27,751 |  | 23,476
Recorded Investment With No Allowance | 7,374 |  | 2,287
Recorded Investment With Allowance | 19,070 |  | 19,750
Total Recorded Investment | 26,444 |  | 22,037
Related Allowance | 3,037 |  | 3,029
Average Recorded Investment | 26,260 | 19,629 |
Recognized Interest Income | 362 | 34 |
Consumer lending | Real estate loan | Single-family |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 16,983 |  | 15,501
Recorded Investment With No Allowance | 2,600 |  | 0
Recorded Investment With Allowance | 13,219 |  | 14,338
Total Recorded Investment | 15,819 |  | 14,338
Related Allowance | 541 |  | 534
Average Recorded Investment | 15,628 | 15,096 |
Recognized Interest Income | 206 | 22 |
Consumer lending | Home equity lines of credit (“HELOCs”) |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 8,277 |  | 5,484
Recorded Investment With No Allowance | 4,774 |  | 2,287
Recorded Investment With Allowance | 3,360 |  | 2,921
Total Recorded Investment | 8,134 |  | 5,208
Related Allowance | 5 |  | 4
Average Recorded Investment | 8,141 | 4,532 |
Recognized Interest Income | 111 | 12 |
Consumer lending | Other consumer |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 2,491 |  | 2,491
Recorded Investment With No Allowance | 0 |  | 0
Recorded Investment With Allowance | 2,491 |  | 2,491
Total Recorded Investment | 2,491 |  | 2,491
Related Allowance | 2,491 |  | $ 2,491
Average Recorded Investment | 2,491 | 1 |
Recognized Interest Income | $ 45 | $ 0 |

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