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Derivatives and Hedging Activities (Details) - Interest Rate Swap - Designated as Hedging Instrument - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jan. 31, 2019	Dec. 31, 2018
Other Assets
Derivative [Line Items]
Derivative asset				$ 76
Cash Flow Hedging
Derivative [Line Items]
Notional amount			$ 255,000
Cash Flow Hedging \| Interest Expense
Derivative [Line Items]
Amount of income (loss) recognized in OCI on derivatives (effective portion)	$ 1	$ 606
Amount of (income) loss reclassified from accumulated OCI into income (effective portion)	$ (77)	$ (573)