Common Equity - Changes in outstanding common shares (Details) - Common Stock [Member] - shares	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Beginning balance	20,310,584	20,172,746
Treasury stock purchases	(61,197)	(100,726)
Common stock issued (including stock-based compensation impact)	223,912	298,778
Ending balance	20,473,299	20,370,798