Securities Sold Under Agreements to Repurchase - Summary of Repurchase Liability by Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Securities sold under agreements to repurchase
Repurchase Liability	$ 10,000	$ 30,000
Weighted Average
Securities sold under agreements to repurchase
Rate (as a percent)	1.77%	1.66%
1 year or less
Securities sold under agreements to repurchase
Repurchase Liability	$ 5,000	$ 25,000
1 year or less \| Weighted Average
Securities sold under agreements to repurchase
Rate (as a percent)	1.65%	1.66%
Over 1 year to 2 years
Securities sold under agreements to repurchase
Repurchase Liability		$ 5,000
Over 1 year to 2 years \| Weighted Average
Securities sold under agreements to repurchase
Rate (as a percent)		1.65%
Over 4 years to 5 years
Securities sold under agreements to repurchase
Repurchase Liability	$ 5,000
Over 4 years to 5 years \| Weighted Average
Securities sold under agreements to repurchase
Rate (as a percent)	1.88%

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant