Summary Of Significant Accounting Policies (Intangible Assets Useful Lives) (Details)	12 Months Ended
	Dec. 31, 2015
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted-average Amortization Period	10 years
Core Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted-average Amortization Period	5 years
Capitalized Software [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted-average Amortization Period	7 years