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Loans Receivable and Allowance for Credit Losses (Loans Held-for-Sale Activity) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Loans Held-for-Sale |  |
Loans transferred from held-for-investment to held-for-sale | $ 155,767 | $ 278,024
Sales | 114,287 | 275,945
Purchases | 80,046 | 147,242
Net gains from sales of loans held-for-sale during the period, excluding lower of cost or fair value adjustment | 1,600 | 2,800
C & I and CRE | Originated |  |
Loans Held-for-Sale |  |
Sales | 89,700 | 29,300
Loans sold in secondary market | Purchased |  |
Loans Held-for-Sale |  |
Sales | 24,600 | 246,600
Commercial lending | Commercial and industrial (“C&I”) |  |
Loans Held-for-Sale |  |
Sales | 102,365 | 236,679
Purchases | 64,747 | 147,116
Commercial lending | Commercial real estate (“CRE”) |  |
Loans Held-for-Sale |  |
Sales | 9,376 | 12,765
Purchases | 0 | 0
Commercial lending | Real estate loan | Multifamily |  |
Loans Held-for-Sale |  |
Sales | 0 | 0
Purchases | 186 | 126
Consumer lending | Real estate loan | Single-family |  |
Loans Held-for-Sale |  |
Sales | 2,546 | 4,310
Purchases | 15,113 | 0
Consumer lending | Other consumer |  |
Loans Held-for-Sale |  |
Sales | 0 | 22,191
Purchases | 0 | 0
Loans held-for-sale |  |
Loans Held-for-Sale |  |
Loans transferred from held-for-investment to held-for-sale | 155,767 | 278,024
Write-down of loans transferred from loans held-for-investment to loans held-for-sale recorded to allowance for loan losses | 85 | 92
Lower of cost or fair value adjustment |  | 69
Loans held-for-sale | Commercial lending | Commercial and industrial (“C&I”) |  |
Loans Held-for-Sale |  |
Loans transferred from held-for-investment to held-for-sale | 146,391 | 265,259
Loans held-for-sale | Commercial lending | Commercial real estate (“CRE”) |  |
Loans Held-for-Sale |  |
Loans transferred from held-for-investment to held-for-sale | 9,376 | 12,765
Loans held-for-sale | Commercial lending | Real estate loan | Multifamily |  |
Loans Held-for-Sale |  |
Loans transferred from held-for-investment to held-for-sale | 0 | 0
Loans held-for-sale | Consumer lending | Real estate loan | Single-family |  |
Loans Held-for-Sale |  |
Loans transferred from held-for-investment to held-for-sale | 0 | 0
Loans held-for-sale | Consumer lending | Other consumer |  |
Loans Held-for-Sale |  |
Loans transferred from held-for-investment to held-for-sale | $ 0 | $ 0

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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
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- Definition The amount of any significant purchases of financing receivables during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The amount of any significant sales of financing receivables during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases that were sold during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sales. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 + Details
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