Share-Based Awards (Summary Of Stock Appreciation Right Transactions) (Details) (Stock Appreciation Rights (SARs) [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Options outstanding, beginning of period	210
Options granted	12
Options exercised	(46)
Options forfeited	0
Options outstanding, beginning of period	176	210
Exercisable, end of period	148
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument Other Than Options Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted-Average Price, Options outstanding, beginning of period	$ 26
Weighted-Average Price, Options granted	$ 62
Weighted-Average Price, Options exercised	$ 20
Weighted-Average Price, Options forfeited	$ 0
Weighted-Average Price, Options outstanding, beginning of period	$ 30	$ 26
Weighted-Average Price, Exercisable, end of period	$ 25
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity, Nonvested, Weighted Average Grant Date Fair Value	$ 14	$ 12	$ 14