Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity (Details)

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Shareholders' Equity (Details) - USD ($)
$ in Thousands, shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Equity [Abstract]        
Stock Repurchased During Period, Value $ 132,900 $ 81,352 $ 132,889 $ 100,426
Stock Repurchase Program, Authorized Amount $ 1,100,000   $ 1,100,000  
Stock Repurchase Program Number Of Shares Repurchased To Date     26.8  
Stock Repurchased To Date Value     $ 1,017,800