Inventories (Summary Of Activity Within The Reserve For Excess, Osolete, and Slow Moving Inventory) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Inventories [Abstract]
Beginning balance	$ 4,907	$ 4,146	$ 3,044
Excess, obsolete, and slow moving inventory expense	2,068	2,417	378
Reserves from acquisitions	35	95	1,270
Scrapped inventory and other adjustments	(1,440)	(1,751)	(546)
Ending balance	$ 5,570	$ 4,907	$ 4,146