Goodwill And Related Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Goodwill And Related Intangible Assets [Abstract]
Accumulated impairment losses	$ 150,965,000		$ 150,965,000
Acquired intangible asset amortization expense	$ 1,439,000	$ 1,719,000