Derivative Financial Instruments (Details) - Interest rate swap - Not designated as hedging instrument - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Nov. 30, 2018	Oct. 02, 2017	Jun. 30, 2016
Derivatives, Fair Value [Line Items]
Fixed interest rate					3.075%	1.093%	1.055%
Notional amount					$ 5,000	$ 1,900	$ 16,700
Quarterly decrease in notional amount						$ 100	300
Derivative fair value assets (liabilities)	$ 1,500	$ (1,000)	$ 1,500	$ (1,000)
Interest expense
Derivatives, Fair Value [Line Items]
Monthly settlement payments (receipts)	$ 200	$ 40	$ 1,000	$ 90
Derivative Instrument, Periodic Payment, Installment Periods Through June Twenty Nine Two Thousand Eighteen
Derivatives, Fair Value [Line Items]
Quarterly decrease in notional amount							400
Derivative Instrument, Periodic Payment, Installment Periods Through June Twenty Eight Two Thousand Nineteen
Derivatives, Fair Value [Line Items]
Notional amount					17,500
Quarterly decrease in notional amount							$ 500
Quarterly increase in notional amount					400
Derivative Instrument, Periodic Payment, Installment Periods Until September Thirty Two Thousand Twenty
Derivatives, Fair Value [Line Items]
Notional amount					17,500
Quarterly decrease in notional amount					200
Derivative Instrument, Periodic Payment, Installment Periods Until December Thirty First Twenty Twenty One
Derivatives, Fair Value [Line Items]
Quarterly decrease in notional amount					400
Derivative Instrument, Periodic Payment, Installment Periods Until November Eighth Twenty Twenty Three
Derivatives, Fair Value [Line Items]
Quarterly decrease in notional amount					$ 600