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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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+ References

No definition available.

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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

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