Derivatives and Hedging Activities, Fair Value of Derivative Instruments on the Balance Sheet (Details) $ in Thousands	9 Months Ended
Sep. 30, 2021 USD ($) Derivatives	Dec. 31, 2020 USD ($) Derivatives
Derivatives and Hedging Activities [Abstract]
Gain to be reclassified to interest expense during next twelve months	$ 112
Number of outstanding derivatives held \| Derivatives	4	4
Notional amount	$ 200,000	$ 200,000
Interest Rate Swaps [Member] \| Designated as Hedging Instrument [Member] \| Other Assets [Member]
Derivatives and Hedging Activities [Abstract]
Fair value, asset	4,395	1,145
Interest Rate Swaps [Member] \| Designated as Hedging Instrument [Member] \| Accrued Expenses [Member]
Derivatives and Hedging Activities [Abstract]
Fair value, liability	$ 112	$ 105

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994

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No definition available.

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Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
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The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
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Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments.

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