Equity Compensation (Equity Compensation Expense And Related Income Tax Benefit Recognized) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Restricted Stock
Equity Compensation [Abstract]
Pre-tax compensation expense	$ 1,549	$ 1,398
Tax benefit	395	356
Stock expense, net of tax	1,154	1,042
Performance Shares
Equity Compensation [Abstract]
Pre-tax compensation expense	946	1,010
Tax benefit	241	258
Stock expense, net of tax	$ 705	$ 752

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Topic 718
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