Nature Of Business And Summary Of Significant Accounting Policies (Derivative Gains And Losses In The Consolidated Statements Of Income) (Details) (Interest rate swap, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Interest rate swap
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Effective portion recognized in other comprehensive (loss) income, pretax:	$ 567	$ 881	$ 944
Effective portion reclassified from other comprehensive (loss) income to interest expense, pretax:	(295)	(449)	(576)
Ineffective portion recognized in income:	$ 0	$ 0	$ 0