Securities Securities (Equity gains and losses) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Equity securities gains and losses [Abstract]
Equity Securities, FV-NI, Gain (Loss)	$ 907	$ (485)
Equity Securities, FV-NI, Realized Gain (Loss)	3	2
Equity Securities, FV-NI, Unrealized Gain (Loss)	$ 904	$ (487)

Equity securities gains and losses [Abstract]

No definition available.

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- Definition

Amount of unrealized and realized gain (loss) 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/2009/role/commonPracticeRef
-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

+ Details

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- Definition

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

+ References

+ Details

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- Definition

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

+ References

+ Details

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