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Organization and Summary of Significant Accounting Policies (Inventories) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]    
Document Fiscal Year Focus 2018  
Inventory, Gross [Abstract]    
Raw materials $ 59,321 $ 43,092
Work-in-process 30,086 28,133
Finished goods 43,230 41,332
Total inventories $ 132,637 $ 112,557