Equity Compensation And Employee Benefit Plans (Schedule Of Equity Compensation Restricted Stock Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Arrangements with Employees and Nonemployees [Abstract]
Number of Restricted Shares Nonvested at beginning of period	815,000
Number of Restricted Shares granted	115,000	268,000	205,500
Number of Restricted Shares vested	(223,000)
Number of Restricted Shares forfeited	(9,000)
Number of Restricted Shares Nonvested at end of period	698,000	815,000
Weighted Average Grant Date Fair Value Nonvested at beginning of period	$ 20.69
Weighted Average Grant Date Fair Value Shares granted	$ 23.51
Weighted Average Grant Date Fair Value Shares vested	$ 21.08
Weighted Average Grant Date Fair Value Shares forfeited	$ 20.24
Weighted Average Grant Date Fair Value Nonvested at end of period	$ 21.04	$ 20.69