XML 73 R62.htm IDEA: XBRL DOCUMENT v3.19.1
Acquisition-Related Amortization and Remeasurement - Components of Acquisition-Related Amortization and Remeasurement (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Acquisition Related Amortization And Remeasurement [Abstract]    
Changes in fair value of contingent consideration $ 5,400  
Amortization of acquired intangibles 1,057 $ 63
Acquisition-related amortization and remeasurement $ 6,457 $ 63