Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details)

v3.20.1
Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - Recurring Basis - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Level I    
Assets:    
Assets to fund deferred compensation liability $ 0 $ 0
Total assets 29,076 37,730
Liabilities:    
Contingent consideration 0 0
Deferred compensation liability 6,911 8,208
Total liabilities 6,911 8,208
Level I | Money Market Funds    
Assets:    
Money market funds 29,076 37,730
Level II    
Assets:    
Assets to fund deferred compensation liability 0 0
Total assets 0 0
Liabilities:    
Contingent consideration 0 0
Deferred compensation liability 0 0
Total liabilities 0 0
Level II | Money Market Funds    
Assets:    
Money market funds 0 0
Level III    
Assets:    
Assets to fund deferred compensation liability 7,173 8,390
Total assets 7,173 8,390
Liabilities:    
Contingent consideration 14,791 9,045
Deferred compensation liability 0 0
Total liabilities 14,791 9,045
Level III | Money Market Funds    
Assets:    
Money market funds 0 0
Fair Value    
Assets:    
Assets to fund deferred compensation liability 7,173 8,390
Total assets 36,249 46,120
Liabilities:    
Contingent consideration 14,791 9,045
Deferred compensation liability 6,911 8,208
Total liabilities 21,702 17,253
Fair Value | Money Market Funds    
Assets:    
Money market funds $ 29,076 $ 37,730