Short-Term Borrowings (Tables)

3 Months Ended

Mar. 31, 2021

Short-term Debt [Abstract]

Schedule of Line of Credit

The Company maintains lines of credit aggregating $110.0 million.

	(Millions)
	As of March 31, 2020
	Outstanding		Available		Maximum		Credit Type	Renewal Date
Bank of America	$	-	$	30.0	$	30.0	Uncommitted	January 27, 2022
PNC Bank		10.0		58.0		68.0	Committed	January 31, 2023
CoBank		3.0		9.0		12.0	Committed	November 30, 2023
	$	13.0	$	97.0	$	110.0