XML 64 R54.htm IDEA: XBRL DOCUMENT v3.21.2
Financial Instruments - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Foreign exchange contracts [Member]        
Derivative [Line Items]        
Notional amount of foreign currency derivative hedges $ 463,000,000.0   $ 463,000,000.0  
Cash flow hedge [Member]        
Derivative [Line Items]        
Derivative instrument gain (loss) 2,400,000 $ (300,000) 1,800,000 $ (7,000,000.0)
Cash flow hedge [Member] | Foreign exchange contracts [Member]        
Derivative [Line Items]        
Estimated amount of net derivative gains in accumulated other comprehensive income reclassified to earnings within 12 months $ 2,700,000   $ 2,700,000