Share-Based Compensation (Summary Of ESPP Annual Offerings) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount expensed under ESPP	$ 2,607	[1]	$ 2,538	[1]	$ 2,152	[1]
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares purchased (in shares)	65		79		71
Per common share purchase Price (in dollars per share)	$ 19.75		$ 15.04		$ 13.83
Amount expensed under ESPP	562		641		282
Net proceeds from issuance	$ 1,288		$ 1,192		$ 978
Common shares date of issue	Jan. 03, 2014		Jan. 04, 2013		Jan. 04, 2012

[1] Stock-based compensation expense is recorded in the selling, general and administrative caption in our consolidated statements of comprehensive income.