Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Reconciliation of Deferred Compensation Liability and Contingent Consideration Liability) (Details)

v3.19.3.a.u2
Fair Value Measurements (Reconciliation of Deferred Compensation Liability and Contingent Consideration Liability) (Details) - Recurring Basis
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Changes in the fair value of Contingent Consideration Liabilities  
December 31, 2018 $ 732
Settlement of contingent consideration liability (749)
Fair market value adjustment on contingent consideration liability 8,126
Accretion on contingent consideration 1,408
December 31, 2019 9,045
Reconciliation of assets to fund deferred compensation liability  
December 31, 2018 6,346
Contributions and fair value adjustments 2,044
December 31, 2019 8,390
Private AI company acquisition  
Changes in the fair value of Contingent Consideration Liabilities  
Acquisition 7,580
PortfolioCenter acquisition  
Changes in the fair value of Contingent Consideration Liabilities  
Acquisition $ 8,200