Long-term Borrowings (Details) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Percentage of entity's assets equal to line of credit facility (in hundredths)	30.00%
Collateral pledged under blanket floating lien agreement	$ 558,231,000
Advance Amount	0	$ 0
Debt Instrument [Line Items]
Public deposit accounts	258,566,000
Federal Home Loan Bank Advances
Debt Instrument [Line Items]
Collateral for deposits	190,000,000
US government and agency securities
Debt Instrument [Line Items]
Collateral for deposits	$ 93,073,000

Refers to the percentage of company's assets equal to line of credit facility with federal home loan bank.

No definition available.

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- Definition

Public deposit means to accept fund from public in the form of deposit.

+ References

No definition available.

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- References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818

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- Definition

Amount of the collateral pledged in support of federal home loan bank advances outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (d)
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- Definition

Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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