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COMMON STOCK AND TREASURY STOCK - Repurchase Programs (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Mar. 31, 2021
Equity, Class of Treasury Stock [Line Items]            
Total Aggregate Amount Paid $ 55,058,000 $ 97,588,000 $ 148,400,000 $ 119,572,000 $ 416,219,000  
Common Stock            
Equity, Class of Treasury Stock [Line Items]            
Total Number of Shares Purchased as Part of Publicly Announced Programs (in shares) 309,133 602,003 1,112,606 995,495 3,635,534 911,136
Total Aggregate Amount Paid   $ 1,000 $ 1,000 $ 1,000 $ 3,000 $ 152,600,000
Common Stock | November 2019 Repurchase Program            
Equity, Class of Treasury Stock [Line Items]            
Amount of Publicly Announced Program           200,000,000
Total Number of Shares Purchased as Part of Publicly Announced Programs (in shares)   228,180        
Average Price Paid per Share (in usd per share)   $ 166.05        
Total Aggregate Amount Paid   $ 37,900,000        
Estimated Remaining Balance Available for Share Repurchases under the Program           0
Common Stock | May 2020 Repurchase Program            
Equity, Class of Treasury Stock [Line Items]            
Amount of Publicly Announced Program           $ 500,000,000
Total Number of Shares Purchased as Part of Publicly Announced Programs (in shares)           682,956
Average Price Paid per Share (in usd per share)           $ 168.03
Total Aggregate Amount Paid           $ 114,800,000
Estimated Remaining Balance Available for Share Repurchases under the Program           $ 385,200,000