Common Stock (Antidilutive Securities Excluded From Computation Of Earnings Per Share) (Details)	3 Months Ended				9 Months Ended				12 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Performance shares payout based on performance	0		0		0		0		0		0
Performance level payout	100.00%		100.00%		100.00%		100.00%		100.00%		100.00%
Restricted Stock [Member]
Antidilutive Securities Excluded from the Computation of Diluted Earnings Per Share, Amount	46,632		90,358		46,178		84,691		52,768		83,091
Performance Shares [Member]
Antidilutive Securities Excluded from the Computation of Diluted Earnings Per Share, Amount	51,133	[1]	0	[1]	48,439	[1]	0	[1]	36,329	[1]	0	[1]
Stock Options [Member]
Antidilutive Securities Excluded from the Computation of Diluted Earnings Per Share, Amount	0		0		0		0		0		0

[1] Performance shares excluded from the computation of diluted earnings per share, as no payouts would have been required based upon performance at the end of the corresponding period. This amount assumes a 100% performance level payout.