XML 113 R91.htm IDEA: XBRL DOCUMENT v3.10.0.1
Commitments and Contingencies - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2018
Loss Contingencies [Line Items]    
2019   $ 98,900,000
2020   89,400,000
2021   76,900,000
2022   66,100,000
2023   58,600,000
Thereafter   159,000,000
Contingent annual cash rebate $ 1,800,000  
Potential losses accrued   $ 0
Linksmart Litigation [Member]    
Loss Contingencies [Line Items]    
Litigation filing date   April 20, 2018
Securities Litigation [Member]    
Loss Contingencies [Line Items]    
Litigation filing date   December 10, 2018
Derivative Litigation [Member]    
Loss Contingencies [Line Items]    
Litigation filing date   September 25, 2018 and September 26, 2018