Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Employee Benefit Plans (Restricted Shares Activity And Related Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024
Average Market Price at Grant
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 99.60	$ 84.88
Restricted Stock
Restricted Awards Activity
Beginning Balance (in shares)	133,624	134,949
Granted (in shares)	11,023	8,989
Vested (in shares)	(17,218)	(29,927)
Ending Balance (in shares)	127,429	114,011
Average Market Price at Grant
Granted (in dollars per share)	$ 122.83	$ 120.20
Stock-based compensation expense associated with restricted shares, RSUs, and PSUs	$ 858	$ 719
Unrecognized stock-based compensation expense associated with restricted shares	$ 6,841
Weighted average period (in years) in which the above amount is expected to be recognized	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 97.80	$ 84.90
Vested (in dollars per share)	$ 103.04	$ 74.40