Equity (Activities Of Non-Qualified Savings Plan During Each Of Three Years) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Equity, Class of Treasury Stock [Line Items]
Purchases, Aggregate amount	$ 47,631		$ 25,516	$ 20,488
Non Qualified Deferred Compensation Plans [Member]
Equity, Class of Treasury Stock [Line Items]
Purchases, Number of shares	99		108	93
Purchases, Aggregate amount	4		4	5
Non Qualified Savings Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Sales, Number of shares	0	[1]	1,211	9
Sales, Aggregate amount	$ 0		$ 25	$ 0

[1] Represents shares purchased by the Company from the rabbi trust that held the shares for the Nonqualified Savings Plan.