Certain Financial Statement Information Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Mar. 31, 2015
Schedule of Property and equipment
Machinery and equipment	$ 38,895	$ 37,286
Leasehold improvements	7,526	9,909
Computers, office furniture and equipment	32,996	32,902
Property and equipment, gross	79,417	80,097
Less: accumulated depreciation and amortization	(64,190)	(63,348)
Property and equipment, net	$ 15,227	$ 16,749	[1]
Machinery and Equipment | Minimum
Schedule of Property and equipment
Useful life	3 years
Machinery and Equipment | Maximum
Schedule of Property and equipment
Useful life	5 years
Leasehold Improvements | Minimum
Schedule of Property and equipment
Useful life	1 year
Leasehold Improvements | Maximum
Schedule of Property and equipment
Useful life	5 years
Computers, Office Furniture and Equipment | Minimum
Schedule of Property and equipment
Useful life	3 years
Computers, Office Furniture and Equipment | Maximum
Schedule of Property and equipment
Useful life	5 years

[1] The Condensed Consolidated Balance Sheet as of March 31, 2015 has been derived from the audited Consolidated Financial Statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.