Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - Recurring Basis - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Level I    
Assets:    
Assets to fund deferred compensation liability $ 0 $ 0
Total assets 67,053 84,110
Liabilities:    
Contingent consideration 0 0
Deferred compensation liability 9,606 8,720
Total liabilities 9,606 8,720
Level I | Money Market Funds    
Assets:    
Money market funds 67,053 84,110
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 10,169 9,961
Total assets 10,169 9,961
Liabilities:    
Contingent consideration 11,746 12,559
Deferred compensation liability 0 0
Total liabilities 11,746 12,559
Level III | Money Market Funds    
Assets:    
Money market funds 0 0
Fair Value    
Assets:    
Assets to fund deferred compensation liability 10,169 9,961
Total assets 77,222 94,071
Liabilities:    
Contingent consideration 11,746 12,559
Deferred compensation liability 9,606 8,720
Total liabilities 21,352 21,279
Fair Value | Money Market Funds    
Assets:    
Money market funds $ 67,053 $ 84,110