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Shareholders' Equity (Details) - USD ($)
shares in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
May 31, 2019
Class of Stock [Line Items]      
Dividends $ 32,609,000 $ 30,831,000  
Payments for repurchase of common stock $ 95,676,000 $ 24,999,000  
Increase in share repurchase authorization     $ 500,000,000.0
Share repurchase plan      
Class of Stock [Line Items]      
Share repurchases (shares) 2.8 0.9  
Payments for repurchase of common stock $ 95,700,000 $ 25,000,000.0  
Remaining value of stock repurchase programs authorization 429,900,000    
Shares withheld to pay taxes      
Class of Stock [Line Items]      
Payments for repurchase of common stock $ 14,800,000 $ 10,400,000