Segment Information - Revenue by Major Customer (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Nokia Siemens Networks [Member]
Revenue, Major Customer [Line Items]
Entity-Wide Revenue, Major Customer, Percentage	18.60%	20.50%	18.30%	19.00%
NEC [Member]
Revenue, Major Customer [Line Items]
Entity-Wide Revenue, Major Customer, Percentage			10.60%	11.00%
Philips Healthcare [Member]
Revenue, Major Customer [Line Items]
Entity-Wide Revenue, Major Customer, Percentage	16.00%		15.10%
Danaher [Member]
Revenue, Major Customer [Line Items]
Entity-Wide Revenue, Major Customer, Percentage		10.40%