Derivative And Hedging Activites - Schedule of Financial Instruments Eligible for Offset in Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Offsetting [Abstract]
Gross Amounts of Recognized, Derivative assets	$ 15,922	$ 7,780
Net Amounts Recognized, Derivative Assets	15,922	7,780
Gross Amounts Not Offset, Financial Instruments, Derivative Assets	3,663	3,099
Gross Amounts Not Offset, Collateral Pledged (Received), Derivative Assets		(743)
Gross Amounts Not Offset, Net amount, Derivative Assets	12,259	3,938
Gross Amounts of Recognized, Derivative Liablities	12,807	5,961
Net Amounts Recognized, Derivative Liablities	12,807	5,961
Gross Amounts Not Offset, Financial Instruments, Derivative Liablities	3,663	3,099
Gross Amounts Not Offset, Collateral Pledged (Received), Derivative Liablities	8,428	260
Gross Amounts Not Offset, Net amount, Derivative Liablities	$ 716	$ 2,602

Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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