Loans Receivable and Allowance for Loan Losses - Summary of Loans Modified in Troubled Debt Restructurings and Related Recorded Investment (Detail) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018 USD ($) Loan	Sep. 30, 2017 USD ($) Loan	Sep. 30, 2018 USD ($) Loan	Sep. 30, 2017 USD ($) Loan
Financing Receivable, Modifications [Line Items]
Number of Loans \| Loan	8	4	33	36
Recorded Investment \| $	$ 473	$ 182	$ 1,458	$ 7,560
Commercial and industrial (including owner occupied commercial real estate)
Financing Receivable, Modifications [Line Items]
Number of Loans \| Loan			0	3
Recorded Investment \| $			$ 0	$ 6,203
Manufactured housing
Financing Receivable, Modifications [Line Items]
Number of Loans \| Loan	7	4	30	33
Recorded Investment \| $	$ 321	$ 182	$ 1,093	$ 1,357
Residential real estate
Financing Receivable, Modifications [Line Items]
Number of Loans \| Loan	1	0	2	0
Recorded Investment \| $	$ 152	$ 0	$ 352	$ 0
Other
Financing Receivable, Modifications [Line Items]
Number of Loans \| Loan			1	0
Recorded Investment \| $			$ 13	$ 0

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No definition available.

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- Definition

Number of financing receivables that have been 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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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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