Financial Instruments and Risk Management (Interest Rate Risk) (Details) - Interest rate risk [member] $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]
Potential percentage change in value	100.00%
Impact on interest earned	$ 1.8

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

No definition available.

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Balance Type:	na
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