Acquisition (Details 1) $ in Thousands	May. 12, 2014 USD ($)
Business Combinations [Abstract]
Cash and cash equivalents	$ 29,042
Current assets, excluding cash and cash equivalents	6,114
Deferred tax asset, current	1,124
Property, plant and equipment	17,269
Identifiable intangible assets	39,050
Other assets	1,518
Total assets acquired at fair value	94,117
Current liabilities	(19,009)
Long-term debt	(1,603)
Deferred tax liability, long-term	(9,138)
Other long-term liabilities	(7,397)
Total liabilities assumed	(37,147)
Net assets acquired	$ 56,970