XML 89 R72.htm IDEA: XBRL DOCUMENT v3.20.2
Commitments and Contingencies - Additional Information (Detail) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]    
Letters of credit outstanding, amount $ 5,000,000.0 $ 5,000,000.0
Outstanding guarantees 0  
Contingently liable for performance, current $ 29,900,000