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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Stockholders' Equity Note [Abstract] |  |
Dividends | $ 15.6 | $ 12.4
Aggregate number of shares repurchased during the period (in shares) | 878,305 |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased | 1,000,000 |
Shares repurchased under the program (in shares) | 728,000 |
Authorized to repurchased additional shares under repurchase program (in shares) | 685,833 |
Shares withheld for tax withholding obligations for the vesting of restricted stock awards (in shares) | 150,305 |
Dividends declared per share of common stock (in dollars per share) | $ 0.40 | $ 0.30

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