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Revenue Recognition and Sales Commissions - Schedule of Revenues Included in Continuing Operations Disaggregated by Revenue Source (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation Of Revenue [Line Items]    
Total revenues, net $ 61,572 $ 65,187
Workforce Solutions [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net 49,824 54,295
Provider Solutions [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net 11,748 10,892
Subscription Services [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net 58,344 61,885
Subscription Services [Member] | Workforce Solutions [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net 48,717 52,805
Subscription Services [Member] | Provider Solutions [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net 9,627 9,080
Professional Services [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net 3,228 3,302
Professional Services [Member] | Workforce Solutions [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net 1,107 1,490
Professional Services [Member] | Provider Solutions [Member]    
Disaggregation Of Revenue [Line Items]    
Total revenues, net $ 2,121 $ 1,812