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Derivative Instruments (Schedule of Interest Rate Swaps) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Nov. 30, 2020	Jul. 31, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 390,000
July 2017 Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount			$ 150,000
November 2020 Swap 1 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount		$ 60,000
November 2020 Swap 2 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount		60,000
November 2020 Swap 3 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount		120,000
November 2020 Swap 4 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount		$ 120,000
Forward-Starting Interest Rate Swaps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 120,000

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

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