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STOCKHOLDERS' EQUITY (Details)
 3 Months Ended
Jun. 30, 2023
USD ($)
class_of_stock
vote
shares
Jun. 30, 2022
USD ($)
$ / shares
shares
Mar. 31, 2023
shares
Mar. 31, 2022
shares
Jul. 31, 2021
USD ($)
Aug. 18, 2015
Class of Stock [Line Items]            
Number of classes of common stock | class_of_stock 2          
Conversion ratio of common stock           1
Dividends outstanding | $ $ 14,673,000 $ 8,766,000        
Authorized amount to be repurchased | $         $ 500,000,000  
Stock repurchase program, remaining authorized repurchase amount | $ $ 482,700,000          
Weighted average price per share (in dollars per share) | $ / shares   $ 85.34        
Class A Common Stock            
Class of Stock [Line Items]            
Common stock voting rights, number of votes | vote 1          
Shares issued of common stock (in shares) 51,296,601   50,638,924      
Number of common shares outstanding (in shares) 51,296,601   50,638,924      
Outstanding common stock repurchased and retired (in shares)   477,030,000        
Shares repurchased and retired, value | $   $ 40,724,000        
Class A Common Stock | Common stock            
Class of Stock [Line Items]            
Shares issued to non-employee directors (in shares) 6,609 6,739        
Conversion of Class B to Class A shares (in shares) 651,068 266,492        
Number of common shares outstanding (in shares) 51,296,601 49,649,765 50,638,924 49,853,564    
Class B Common Stock            
Class of Stock [Line Items]            
Common stock voting rights, number of votes | vote 10          
Shares issued of common stock (in shares) 18,035,565   18,048,345      
Number of common shares outstanding (in shares) 18,035,565   18,048,345      
Outstanding common stock repurchased and retired (in shares) 507,511,000 496,731        
Shares repurchased and retired, value | $ $ 69,766,000 $ 42,121,000        
Class B Common Stock | Common stock            
Class of Stock [Line Items]            
Number of common shares outstanding (in shares) 18,035,565 19,136,952 18,048,345 17,649,555    
Investor | Class A Common Stock            
Class of Stock [Line Items]            
Shares issued of common stock (in shares) 51,231,666,000 49,591,439,000        
Director | Class A Common Stock            
Class of Stock [Line Items]            
Shares issued to non-employee directors (in shares) 6,609 6,739        
HL Holders | Class B Common Stock            
Class of Stock [Line Items]            
Number of common shares outstanding (in shares) 18,035,565,000 19,136,952,000        
Director | Class A Common Stock            
Class of Stock [Line Items]            
Shares issued of common stock (in shares) 64,935,000 58,326,000