Stockholders' Equity (Share-Based Compensation Expense Included in the Statement of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share base compensation	$ 3,851	$ 2,230
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share base compensation	799	488
Selling, distribution and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share base compensation	66	40
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share base compensation	2,646	1,490
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share base compensation	$ 340	$ 212