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Short-term Borrowings (Schedule of Weighted Average Daily Amounts of Borrowings Outstanding) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Short-term Debt [Abstract] |  |  |  |
Average Daily Amounts Outstanding | $ 35,576 | $ 58,259 | $ 31,372 | $ 56,881
Weighted Average Interest Rates | 1.24% | 3.26% | 1.63% | 3.45%

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- Definition The effective interest rate during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Maximum amount borrowed under the credit facility at any time during the period. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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Period Type: | duration