XML 64 R54.htm IDEA: XBRL DOCUMENT v3.20.2
Mutual Covenant-Not-to-Sue and Release Agreement (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Mutual Covenant-Not-to-Sue Agreement [Abstract]          
Proceeds from mutual covenant-not-to-sue agreement $ 50,000,000.0        
Initial term 7 years        
Extension term 7 years        
Additional proceeds if extended $ 50,000,000.0        
Contractual term 14 years        
Total proceeds if extension option utilized $ 100,000,000.0        
Amount allocated to functional component 36,000,000.0        
Amount representing the right to utilize future patents $ 64,000,000.0        
Gain on IP matter   $ 1,100,000 $ 0 $ 37,900,000 $ 0
Amount recorded in Accrued liabilities and Other liabilities in condensed consolidated balance sheet   $ 12,100,000   $ 12,100,000