Stock-Based Compensation (The Weighted Average Assumptions Used By The Company In Applying The Monte Carlo Valuation Model For Performance Share Grants) (Details) - Performance Shares [Member] - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.45%	2.44%
Dividend yield	3.13%	2.64%
Expected volatility	41.69%	45.11%
Monte Carlo valuation	99.62%	97.39%
Closing stock price on the date of grant	$ 15.34	$ 18.15