Earnings Per Common Share And Share Awards Summary Of Share-Based Award Transactions (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number Of Shares, Options exercised	(1,000)	(2,650)
Share Based Compensation Arrangement By Share Based Payment Award, Options, Unvested, Number	3,375
Share Based Compensation Arrangement By Share Based Payment Award, Options, Unvested, Weighted Average Exercise Price	$ 68.70
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Options exercised	$ 27.21	$ 28.63
StockOptionsAndStockAppreciationRightsSARS [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number Of Shares, Outstanding Beginning Balance	19,000	98,150
Number Of Shares, Options/SARs cancelled/forfeited/expired	0	0
Number Of Shares, Outstanding Ending Balance	21,000	19,000	98,150
Number Of Shares, Exercisable as of June 30, 2014	17,625
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Outstanding Beginning Balance	$ 45.74	$ 30.74
Weighted Average Exercise Price, Options/SARs cancelled/forfeited/expired	$ 0.00	$ 0.00
Weighted Average Exercise Price, Outstanding Ending Balance	$ 51.30	$ 45.74	$ 30.74
Weighted Average Exercise Price, Exercisable as of June 30, 2014	$ 47.97
Average Remaining Contractual Term, Outstanding Beginning Balance	4 years 1 month 24 days	3 years 5 months 5 days	3 years 2 months 1 day
Average Remaining Contractual Term, Outstanding Ending Balance	4 years 1 month 24 days	3 years 5 months 5 days	3 years 2 months 1 day
Average Remaining Contractual Term, Exercisable as of June 30, 2014	3 years 7 months 13 days
Share Based Compensation Arrangement By Share Based Payment Award, Options, Unvested, Weighted Average Remaining Contractual Term	6 years 10 months 24 days
Aggregate Intrinsic Value, Outstanding Beginning Balance	$ 669,610	$ 2,871,710
Aggregate Intrinsic Value, Outstanding Ending Balance	356,160	669,610	2,871,710
Aggregate Intrinsic Value, Exercisable as of June 30, 2014	356,160
Share Based Compensation Arrangement By Share Based Payment Award, Options, Unvested, Intrinsic Value	$ 0
SARs
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number Of Shares, SARs granted	4,500	3,000
Number Of Shares, Options exercised	(1,500)	(79,500)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, SARs granted	$ 68.70	$ 71.59
Weighted Average Exercise Price, Options exercised	$ 49.04	$ 28.77