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Short-term Borrowings | 12 Months Ended
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Dec. 31, 2019
Short-term Debt [Abstract] |
Short-term Borrowings | Note 5 – Short-term Borrowings Information regarding the Company’s short-term borrowings for the years ended December 31, 2019 and 2018 is summarized below:
|  | (Millions of Dollars)
|  | 2019 |  | 2018
Established Lines at Year-End |  | $ | 140.0 |  |  | $ | 92.0 |
Maximum Amount Outstanding |  |  | 59.4 |  |  |  | 48.5 |
Average Outstanding |  |  | 52.4 |  |  |  | 37.3 |
Notes Payable at Year-End |  |  | 20.0 |  |  |  | 48.5 |
Weighted Average Interest Rate |  |  | 3.33 | % |  |  | 3.17 | %
Weighted Average Interest Rate at Year-End |  |  | 2.86 | % |  |  | 3.57 | %
The maturity dates for the Notes Payable as of December 31, 2019 are in January 2020 and are extendable at the discretion of the Company. Interest rates for short-term borrowings are below the prime rate with no requirement for compensating balances.

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- Definition The entire disclosure for short-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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