Segment Reporting (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Total revenues information by geographic area
Total product revenues	$ 136,153	$ 77,137	$ 265,679	$ 112,933
Total product revenues in percentage	100.00%	100.00%	100.00%	100.00%
United States [Member]
Total revenues information by geographic area
Total product revenues	57,510	23,899	113,221	35,567
Total product revenues in percentage	42.00%	31.00%	43.00%	31.00%
Germany [Member]
Total revenues information by geographic area
Total product revenues	15,770	8,372	33,711	8,603
Total product revenues in percentage	12.00%	11.00%	13.00%	8.00%
China [Member]
Total revenues information by geographic area
Total product revenues	14,561	6,010	25,737	6,126
Total product revenues in percentage	11.00%	8.00%	10.00%	5.00%
South Korea [Member]
Total revenues information by geographic area
Total product revenues	12,975	10,268	20,919	19,322
Total product revenues in percentage	10.00%	13.00%	8.00%	17.00%
Japan [Member]
Total revenues information by geographic area
Total product revenues	7,259	3,325	13,298	9,077
Total product revenues in percentage	5.00%	4.00%	5.00%	8.00%
Canada [Member]
Total revenues information by geographic area
Total product revenues	4,428	2,896	8,584	4,195
Total product revenues in percentage	3.00%	4.00%	3.00%	4.00%
Mexico [Member]
Total revenues information by geographic area
Total product revenues	4,249	7,024	8,685	12,998
Total product revenues in percentage	3.00%	9.00%	3.00%	12.00%
Czech Republic [Member]
Total revenues information by geographic area
Total product revenues	4,103	2,739	8,695	2,739
Total product revenues in percentage	3.00%	3.00%	3.00%	2.00%
United Kingdom [Member]
Total revenues information by geographic area
Total product revenues	2,865	2,418	6,548	4,120
Total product revenues in percentage	2.00%	3.00%	2.00%	4.00%
Other [Member]
Total revenues information by geographic area
Total product revenues	$ 12,433	$ 10,186	$ 26,281	$ 10,186
Total product revenues in percentage	9.00%	14.00%	10.00%	9.00%