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Acquisition of C Technologies, Inc. - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Business Acquisition [Line Items]          
Cash consideration     $ 182,176  
Value of common stock issued     53,938  
Fair value of tangible assets acquired $ 30,756 $ 30,756 30,756  
Fair value of acquired finite lived intangible assets 90,830 90,830 90,830  
Goodwill 469,510 469,510 469,510   $ 326,735
Acquisition-related Costs [Member]          
Business Acquisition [Line Items]          
Transaction costs 4,000 4,000 4,000    
Fair Value Adjustment to Inventory [Member]          
Business Acquisition [Line Items]          
Inventory purchase accounting adjustments     1,200    
Selling, general and administrative          
Business Acquisition [Line Items]          
Transaction costs   3,500 4,000    
Spectrum Inc.          
Business Acquisition [Line Items]          
Cash consideration     $ 185,971    
Shares issued for business acquisition     779,221    
Value of common stock issued     $ 53,938    
Business combination, consideration transferred     239,909    
Fair value of tangible assets acquired 6,200 6,200 6,200    
Fair value of acquired finite lived intangible assets 90,800 90,800 90,800    
Cash consideration for future employment     9,000    
C Technologies          
Business Acquisition [Line Items]          
Cash consideration     195,000    
Fair value of acquired finite lived intangible assets 90,800 90,800 90,800    
Goodwill 142,881 142,881 142,881    
Business acquisition, revenue 2,200        
Pro forma adjustments amortization     2,200   2,700
Pro forma adjustments stock based compensation     300   $ 400
Business Acquisitions ProForma Net Loss 1,500   20,560 $ 8,060  
C Technologies | Accounting Standards Update 2015-16 [Member]          
Business Acquisition [Line Items]          
Cash consideration     186,000    
C Technologies | Goodwill [Member]          
Business Acquisition [Line Items]          
Intangible Asset Residual Value $ 142,900 $ 142,900 $ 142,900