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Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 15, 2019 | May 07, 2019 | Jun. 30, 2019 | Jun. 30, 2019 | Jun. 30, 2018 | Feb. 25, 2016
Common stock dividends paid |  |  |  | $ 149,300,000 | $ 118,900,000 |
Dividends paid per common share (in dollars per share) |  | $ 0.79 |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | $ 200,000,000.0
Repurchases of common stock under stock repurchase program |  |  | 0 | 0 |  |
Common stock repurchase authorization amount available |  |  | $ 193,000,000.0 | $ 193,000,000.0 |  |
Subsequent Event |  |  |  |  |  |
Common stock dividends paid | $ 74,700,000 |  |  |  |  |

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