Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Impairment - Schedule of Reconciliation of Impairment Charges Recognized in Operating Expenses (Detail)

v3.10.0.1
Impairment - Schedule of Reconciliation of Impairment Charges Recognized in Operating Expenses (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Asset Impairment Charges [Line Items]      
Impairment charges $ 0 $ 0 $ 3,464
Path Logic | Customer Relationships      
Asset Impairment Charges [Line Items]      
Impairment charges 0 0 1,562
Health Discovery Corporation Assets      
Asset Impairment Charges [Line Items]      
Impairment charges $ 0 $ 0 $ 1,902