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Disaggregated Revenues (Tables)
12 Months Ended
Dec. 31, 2021
Disaggregation of Revenue [Abstract]  
Summary of disaggregation of revenue by nature The following table summarizes the disaggregation of revenues by product or source (dollars in thousands):
 Years Ended December 31,
 202120202019
Net product sales   
Trokendi XR$304,817 $319,640 $295,214 
Oxtellar XR110,708 98,725 88,186 
APOKYN99,233 74,296 — 
XADAGO13,387 6,943 — 
MYOBLOC19,514 9,746 — 
Qelbree9,879 — — 
GOCOVRI9,778 — — 
Osmolex ER188 — — 
Total net product sales567,504 509,350 383,400 
Royalty revenues12,271 11,047 9,355 
Total revenues$579,775 $520,397 $392,755