Segment, Customer and Geographic Information (Details 2)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Europe, Middle East, & Africa [Member]	Jun. 30, 2011 Europe, Middle East, & Africa [Member]	Jun. 30, 2012 Europe, Middle East, & Africa [Member]	Jun. 30, 2011 Europe, Middle East, & Africa [Member]	Jun. 30, 2012 Asia Pacific [Member]	Jun. 30, 2011 Asia Pacific [Member]	Jun. 30, 2012 Asia Pacific [Member]	Jun. 30, 2011 Asia Pacific [Member]	Jun. 30, 2012 Other Americas [Member]	Jun. 30, 2011 Other Americas [Member]	Jun. 30, 2012 Other Americas [Member]	Jun. 30, 2011 Other Americas [Member]	Jun. 30, 2012 Customer A [Member]	Jun. 30, 2011 Customer A [Member]	Jun. 30, 2012 Customer A [Member]	Jun. 30, 2011 Customer A [Member]	Jun. 30, 2012 Customer B [Member]	Jun. 30, 2011 Customer B [Member]	Jun. 30, 2012 Customer B [Member]	Dec. 31, 2011 Customer B [Member]
Revenues to customers outside
Total Foreign sales	30.00%	36.00%	31.00%	39.00%	13.00%	19.00%	14.00%	21.00%	9.00%	10.00%	10.00%	10.00%	8.00%	7.00%	7.00%	8.00%	8.00%	10.00%	9.00%	8.00%	2.00%	10.00%	2.00%	7.00%