XML 20 R37.htm IDEA: XBRL DOCUMENT v3.3.0.814
Goodwill and Other Intangible Assets (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Other intangible assets:    
Indefinite-lived trademarks $ 9,052 $ 9,052
Patents 18,702 18,154
Total other intangible assets, gross 27,754 27,206
Accumulated amortization - patents (17,288) (16,631)
Other intangible assets, net $ 10,466 $ 10,575
Patents | Minimum    
Other intangible assets:    
Estimated Useful Life (in years) 8 years  
Patents | Maximum    
Other intangible assets:    
Estimated Useful Life (in years) 18 years