XML 81 R64.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 8 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-lived intangible assets, gross $ 573,795 $ 540,958
Finite-lived intangible assets, accumulated amortization (455,626) (433,514)
Finite-lived intangible assets, net 118,169 107,444
Indefinite-lived tradenames, gross 128,321 128,321
Total intangible assets, gross 702,116 669,279
Total intangible assets, net $ 246,490 235,765
Trade Names [Member]    
Finite-lived intangible assets, useful life (Year) 9 years  
Finite-lived intangible assets, gross $ 56,378 52,784
Finite-lived intangible assets, accumulated amortization (32,416) (28,422)
Finite-lived intangible assets, net $ 23,962 24,362
Customer Lists [Member]    
Finite-lived intangible assets, useful life (Year) 12 years  
Finite-lived intangible assets, gross $ 368,343 340,138
Finite-lived intangible assets, accumulated amortization (307,149) (299,074)
Finite-lived intangible assets, net $ 61,194 41,064
Patents [Member]    
Finite-lived intangible assets, useful life (Year) 14 years  
Finite-lived intangible assets, gross $ 131,030 131,137
Finite-lived intangible assets, accumulated amortization (101,060) (91,520)
Finite-lived intangible assets, net $ 29,970 39,617
Unpatented Technology [Member]    
Finite-lived intangible assets, useful life (Year) 15 years  
Finite-lived intangible assets, gross $ 13,169 13,169
Finite-lived intangible assets, accumulated amortization (12,058) (11,915)
Finite-lived intangible assets, net $ 1,111 1,254
Computer Software, Intangible Asset [Member]    
Finite-lived intangible assets, useful life (Year)  
Finite-lived intangible assets, gross $ 1,046 1,046
Finite-lived intangible assets, accumulated amortization (1,046) (1,046)
Finite-lived intangible assets, net
Noncompete Agreements [Member]    
Finite-lived intangible assets, useful life (Year) 7 years  
Finite-lived intangible assets, gross $ 3,829 2,684
Finite-lived intangible assets, accumulated amortization (1,897) (1,537)
Finite-lived intangible assets, net $ 1,932 $ 1,147