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Allowance for Loan Losses - Recorded Investment in Consumer Loan Classes by Performing and Nonperforming Status (Details) - Consumer - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 1,331,901	$ 1,274,203
Percentage of Total	100.00%	100.00%
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 1,321,007	$ 1,263,335
Percentage of Total	99.20%	99.10%
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 10,894	$ 10,868
Percentage of Total	0.80%	0.90%
Residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 770,882	$ 726,679
Percentage of Total	100.00%	100.00%
Residential mortgage | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 763,498	$ 719,551
Percentage of Total	99.00%	99.00%
Residential mortgage | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 7,384	$ 7,128
Percentage of Total	1.00%	1.00%
Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 475,024	$ 471,562
Percentage of Total	100.00%	100.00%
Home equity | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 471,532	$ 467,864
Percentage of Total	99.30%	99.20%
Home equity | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 3,492	$ 3,698
Percentage of Total	0.70%	0.80%
Installment and other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 74,460	$ 67,546
Percentage of Total	100.00%	100.00%
Installment and other consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 74,442	$ 67,504
Percentage of Total	100.00%	99.90%
Installment and other consumer | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 18	$ 42
Percentage of Total	0.00%	0.10%
Consumer construction
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 11,535	$ 8,416
Percentage of Total	100.00%	100.00%
Consumer construction | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 11,535	$ 8,416
Percentage of Total	100.00%	100.00%
Consumer construction | Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and leases receivables, recorded investment	$ 0	$ 0
Percentage of Total	0.00%	0.00%

X

- Definition

Loans and leases receivable gross carrying amount consumer percentage.

+ References

No definition available.

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+ References

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522

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