Quarterly report pursuant to Section 13 or 15(d)

Revenues from Contracts and Significant Customers - Company???s product revenue (Detail)

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Revenues from Contracts and Significant Customers - Company’s product revenue (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Sales Revenue, Goods, Net $ 6,689   $ 12,198  
Total Revenue 63,834 $ 50,697 119,259 $ 95,379
TGTX [Member]        
Sales Revenue, Goods, Net 126   520  
Targadox [Member]        
Sales Revenue, Goods, Net 6,363   11,861  
Other branded revenue [Member]        
Sales Revenue, Goods, Net $ 326   $ 337