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Loans and Leases Receivable and Allowance for Loan and Lease Losses - Schedule of Accruing and Nonaccrual TDRs (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | $ 899 | $ 322 |
Commercial and industrial (including owner occupied commercial real estate) (1) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 431 | 0 |
Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 385 | 322 |
Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 83 | $ 0 |
Accruing TDRs |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 16,590 |  | $ 11,624
Accruing TDRs | Commercial and industrial (including owner occupied commercial real estate) (1) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 5,186 |  | 64
Accruing TDRs | Commercial real estate owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 28 |  | 32
Accruing TDRs | Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 2,993 |  | 3,026
Accruing TDRs | Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 8,383 |  | 8,502
Accruing TDRs | Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 |  | 0
Nonaccrual TDRs |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 3,055 |  | 7,572
Nonaccrual TDRs | Commercial and industrial (including owner occupied commercial real estate) (1) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 471 |  | 5,273
Nonaccrual TDRs | Commercial real estate owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 0 |  | 0
Nonaccrual TDRs | Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 723 |  | 667
Nonaccrual TDRs | Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 1,850 |  | 1,620
Nonaccrual TDRs | Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 11 |  | 12
Total |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 19,645 |  | 19,196
Total | Commercial and industrial (including owner occupied commercial real estate) (1) |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 5,657 |  | 5,337
Total | Commercial real estate owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 28 |  | 32
Total | Manufactured housing |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 3,716 |  | 3,693
Total | Residential real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | 10,233 |  | 10,122
Total | Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment | $ 11 |  | $ 12

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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524 + Details
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