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Debt and Credit Facilities - Schedule of Aggregate Amount of Debt (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2020 USD ($)
Senior Note, Series A |
Debt Instrument [Line Items] |
Debt Amount | $ 50,000
Maturity Date | Jul. 15, 2021
Interest Rates | 4.44%
Senior Note, Series B |
Debt Instrument [Line Items] |
Debt Amount | $ 100,000
Maturity Date | Jul. 15, 2024
Interest Rates | 4.98%
Senior Note, Series C |
Debt Instrument [Line Items] |
Debt Amount | $ 60,000
Maturity Date | Jul. 15, 2026
Interest Rates | 5.13%
Senior Note, Series D |
Debt Instrument [Line Items] |
Debt Amount | $ 40,000
Maturity Date | Jul. 15, 2029
Interest Rates | 5.38%

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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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