Annual report pursuant to Section 13 and 15(d)

Segment and Geographic Information - Additional Information (Detail)

v3.20.4
Segment and Geographic Information - Additional Information (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
Segment
Customer
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Segment Reporting Information [Line Items]      
Number of reportable segments | Segment 3    
Credit losses attributable to expense $ 50,696 $ 52,456 $ 35,730
Non-US [Member]      
Segment Reporting Information [Line Items]      
Net assets held outside the United States 3,100,000 2,600,000  
Credit losses attributable to expense $ 19,000 $ 31,600 $ 8,000
Sales [Member] | Customer Concentration Risk [Member]      
Segment Reporting Information [Line Items]      
Percentage of concentration risk 8.80% 9.60% 10.40%
Number of largest customers | Customer 5