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Securities - Schedule of Required Fair Value Disclosures for Equity Securities (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair Value at January 1, 2018	$ 0
Fair Value at June 30, 2018	1,767
Accounting Standards Update 2016-01
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair Value at January 1, 2018	1,793
Unrealized Gains	22
Unrealized Losses	48
Fair Value at June 30, 2018	$ 1,767

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- Definition

Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]

+ References

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

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- Definition

Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117546-209714

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Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
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