XML 59 R49.htm IDEA: XBRL DOCUMENT v3.20.2
Revenue Recognition - Summary of Contract Balances (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Revenue From Contract With Customer [Abstract]    
Contract assets $ 3,200 $ 6,091
Deferred revenue $ 4,347 $ 6,826