Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Schedule of Assets and Liabilities at Fair Value on Recurring Basis (Detail)

v3.23.2
Fair Value Measurements - Schedule of Assets and Liabilities at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Assets        
Assets held in rabbi trust $ 10,365 $ 9,553    
Marketable debt securities, available-for-sale 235,567 322,029    
Liabilities:        
Contingent consideration 6,518   $ 7,779  
Deferred consideration 2,018 5,119    
Deferred compensation liability 8,086 6,661    
Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 164,856 253,434    
Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 70,711 68,595    
U.S. treasuries | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 65,495 134,549    
U.S. treasuries | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 17,409 20,715    
U.S. government sponsored entities | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 510 536    
Corporate debt | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 99,361 118,041    
Corporate debt | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 42,250 41,358    
ABS and other | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale   844    
ABS and other | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 10,542 5,986    
Recurring        
Assets        
Cash equivalents 131,602 180,349    
Recurring | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 164,856 253,434    
Recurring | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 70,711 68,595    
Recurring | Commercial paper        
Assets        
Cash equivalents 50,191 41,324    
Recurring | Money market funds        
Assets        
Cash equivalents 81,411 139,025    
Recurring | Assets held in rabbi trust        
Assets        
Assets held in rabbi trust 10,365 9,553    
Recurring | U.S. treasuries | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 65,495 134,549    
Recurring | U.S. treasuries | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 17,409 20,715    
Recurring | U.S. government sponsored entities | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 510 536    
Recurring | Corporate debt | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 99,361 118,041    
Recurring | Corporate debt | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 42,250 41,358    
Recurring | ABS and other | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 844    
Recurring | ABS and other | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 10,542 5,986    
Level 1 | Recurring        
Assets        
Cash equivalents 81,411 139,025    
Liabilities:        
Deferred consideration 0 0    
Deferred compensation liability 8,086 6,661    
Level 1 | Recurring | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 65,495 134,549    
Level 1 | Recurring | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 17,409 20,715    
Level 1 | Recurring | Commercial paper        
Assets        
Cash equivalents 0 0    
Level 1 | Recurring | Money market funds        
Assets        
Cash equivalents 81,411 139,025    
Level 1 | Recurring | Assets held in rabbi trust        
Assets        
Assets held in rabbi trust 0 0    
Level 1 | Recurring | U.S. treasuries | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 65,495 134,549    
Level 1 | Recurring | U.S. treasuries | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 17,409 20,715    
Level 1 | Recurring | U.S. government sponsored entities | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 1 | Recurring | Corporate debt | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 1 | Recurring | Corporate debt | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 1 | Recurring | ABS and other | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 1 | Recurring | ABS and other | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 2 | Recurring        
Assets        
Cash equivalents 50,191 41,324    
Liabilities:        
Deferred consideration 2,018 5,119    
Deferred compensation liability 0 0    
Level 2 | Recurring | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 99,361 118,885    
Level 2 | Recurring | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 53,302 47,880    
Level 2 | Recurring | Commercial paper        
Assets        
Cash equivalents 50,191 41,324    
Level 2 | Recurring | Money market funds        
Assets        
Cash equivalents 0 0    
Level 2 | Recurring | Assets held in rabbi trust        
Assets        
Assets held in rabbi trust 10,365 9,553    
Level 2 | Recurring | U.S. treasuries | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 2 | Recurring | U.S. treasuries | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 2 | Recurring | U.S. government sponsored entities | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 510 536    
Level 2 | Recurring | Corporate debt | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 99,361 118,041    
Level 2 | Recurring | Corporate debt | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 42,250 41,358    
Level 2 | Recurring | ABS and other | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 844    
Level 2 | Recurring | ABS and other | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 10,542 5,986    
Level 3 | Recurring        
Assets        
Cash equivalents 0 0    
Liabilities:        
Deferred consideration 0 0    
Deferred compensation liability 0 0    
Level 3 | Recurring | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | Commercial paper        
Assets        
Cash equivalents 0 0    
Level 3 | Recurring | Money market funds        
Assets        
Cash equivalents 0 0    
Level 3 | Recurring | Assets held in rabbi trust        
Assets        
Assets held in rabbi trust 0 0    
Level 3 | Recurring | U.S. treasuries | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | U.S. treasuries | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | U.S. government sponsored entities | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | Corporate debt | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | Corporate debt | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | ABS and other | Short-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Level 3 | Recurring | ABS and other | Long-term investments:        
Assets        
Marketable debt securities, available-for-sale 0 0    
Contingent consideration        
Liabilities:        
Contingent consideration 6,518 7,067   $ 9,312
Contingent consideration | Level 1 | Recurring        
Liabilities:        
Contingent consideration 0 0    
Contingent consideration | Level 2 | Recurring        
Liabilities:        
Contingent consideration 0 0    
Contingent consideration | Level 3        
Liabilities:        
Contingent consideration $ 6,518 $ 7,067