Benefit Plans (Summary Of Performance Contingent Cash Awards Activity) (Details) (Performance Contingent Cash Awards [Member], USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Performance Contingent Cash Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Nonvested, January 1 (in shares/awards)	59,639		46,676		23,428
Granted (in shares/awards)	39,530		36,936		23,975
Vested (in shares/awards)	0	[1]	(21,605)	[1]	0	[1]
Forfeited (in shares/awards)	(2,192)		(2,368)		(727)
Nonvested, December 31 (in shares/awards)	96,977		59,639		46,676
Cash payout value			$ 0.9

[1] In 2012, 21,605 performance contingent cash awards granted in 2010 vested, resulting in cash payouts valued at $0.9 million.