Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v3.19.2
Fair Value Measurements (Details) - Recurring Basis - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Level 1    
Assets    
Assets to fund deferred compensation liability $ 0 $ 0
Total assets 40,016 265,554
Liabilities    
Contingent consideration 0 0
Deferred compensation liability 7,974 6,196
Total liabilities 7,974 6,196
Level 1 | Money Market Funds    
Assets    
Money market funds 40,016 265,554
Level 2    
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 2 | Money Market Funds    
Assets    
Money market funds 0 0
Level 3    
Assets    
Assets to fund deferred compensation liability 8,091 6,346
Total assets 8,091 6,346
Liabilities    
Contingent consideration 16,423 732
Deferred compensation liability 0 0
Total liabilities 16,423 732
Level 3 | Money Market Funds    
Assets    
Money market funds 0 0
Fair Value    
Assets    
Assets to fund deferred compensation liability 8,091 6,346
Total assets 48,107 271,900
Liabilities    
Contingent consideration 16,423 732
Deferred compensation liability 7,974 6,196
Total liabilities 24,397 6,928
Fair Value | Money Market Funds    
Assets    
Money market funds $ 40,016 $ 265,554