XML 45 R35.htm IDEA: XBRL DOCUMENT v3.21.1
Revenue from Contracts with Customers - Additional Information (Detail)
3 Months Ended
Mar. 31, 2021
Minimum  
Revenue From Contract With Customers [Line Items]  
Initial term of contract 2 months
Maximum  
Revenue From Contract With Customers [Line Items]  
Initial term of contract 60 months