Goodwill And Intangible Assets (Changes In Carrying Amounts Of Goodwill And Other Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Balance at beginning period	$ 407,825	$ 279,016
Goodwill, Acquired During Period	54,472	128,532
Purchase Accounting Adjustments	(5,324)
Foreign Exchange Translation	449	277
Balance at ending period	$ 457,422	$ 407,825