XML 68 R51.htm IDEA: XBRL DOCUMENT v3.20.4
Shareholders' Equity (Narrative) (Details) - USD ($)
$ in Thousands, shares in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Class of Stock [Line Items]      
Dividends declared $ (135,138) $ (124,356) $ (108,489)
Stock repurchases $ 170,676 $ 274,333 $ 294,566
Share repurchase plan [Member]      
Class of Stock [Line Items]      
Shares repurchased under authorized repurchase programs 4.5 8.4 10.9
Stock repurchases $ 170,700 $ 274,300 $ 294,600
Remaining value of stock repurchase programs authorization 354,900    
Shares withheld to pay taxes [Member]      
Class of Stock [Line Items]      
Stock repurchases $ 14,900 $ 11,500 $ 7,900