XML 69 R55.htm IDEA: XBRL DOCUMENT v3.21.1
Trade Accounts Receivable - Additional Information (Detail)
3 Months Ended
Mar. 31, 2021
Accounts Receivable [Member] | Minimum [Member] | Credit Concentration Risk [Member]  
Concentration Risk [Line Items]  
Percentage of trade accounts receivable of major customers 10.00%