Earnings Per Common Share And Share Awards Share-Based Valuation Assumptions (Details) - SARs	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life in years	7 years	7 years
Volatility	36.60%	35.00%
Interest rate	4.40%	4.40%
Yield rate	0.80%	1.10%