Summary Of Significant Accounting Policies (Calculation Of Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Summary Of Significant Accounting Policies [Abstract]
Net income allocable to common shareholders	$ 9,940	$ 8,540
Basic weighted average common shares outstanding	26,863	24,308
Net effect of dilutive stock compensation - based on treasury stock method using average market price	98	103
Diluted weighted average common shares outstanding	26,961	24,411
Net income per common share - Basic	$ 0.37	$ 0.35
Net income per common share - Diluted	$ 0.37	$ 0.35