Acquisitions (Details) - USD ($) $ in Thousands	Jun. 01, 2015	Jun. 30, 2015
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Goodwill		$ 141
Silarx
Business Acquisition [Line Items]
Percentage of outstanding equity interest	100.00%
Total cash consideration	$ 42,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash	664
Accounts receivable, net of revenue-related reserves	4,396
Inventories	2,705
Property, plant and equipment	7,247
Silarx Product rights	10,000
Silarx In-process research and development	18,000
Goodwill	141
Other current assets	9
Other assets	348
Total assets acquired	43,510
Accounts payable	(711)
Income taxes payable	(273)
Total fair value of acquisition	$ 42,526
Estimated useful lives	15 years
Silarx | Selling, general and administrative
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Acquisition cost		$ 1,400