Earnings Per Share, Share Repurchases and Dividends on Common Stock (Unaudited) Earnings Per Share and Dividends (Details 1) - $ / shares shares in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2026	Jun. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Earnings Per Share [Abstract]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	300		400	300	300
Common stock dividends per share, declared (in dollars per share)	$ 2.47		$ 2.31	$ 7.25	$ 6.68
Increase in quarterly common stock dividend (percent)		7.00%