Securities - Schedule of Required Fair Value Disclosures for Equity Securities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair Value	$ 0
Fair Value	1,760
Accounting Standards Update 2016-01
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair Value	1,793
Unrealized Gains	7
Unrealized Losses	40
Fair Value	$ 1,760