Shareholders’ Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Aug. 31, 2018
Dividends, Common Stock, Cash	$ 174,355	$ 148,231	$ 136,472
Common Stock, Dividends, Per Share, Declared	$ 0.75	$ 0.62	$ 0.56
Payments of Ordinary Dividends, Common Stock	$ 168,913	$ 145,565	$ 135,767
Share repurchases (in shares)	13,100,000	7,400,000	732,000
Share repurchases	$ 523,569	$ 252,242	$ 25,034
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 399,200
Share Repurchase Program 2016
Stock Repurchase Program, Authorized Amount			$ 450,000
Share Repurchase Program, August 2018
Stock Repurchase Program, Authorized Amount				$ 750,000

Aggregate dividends declared during the period for each share of common stock outstanding.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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