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Equity Narratives (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Oct. 29, 2019 | Sep. 30, 2019 | Aug. 14, 2019
Treasury Stock Acquired, Average Cost Per Share |  | $ 44.37 |
Treasury Stock, Value, Acquired, Par Value Method |  | $ 52.2 |
Treasury Stock, Shares, Acquired |  | 1,176,139 |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  | $ 389.0 |
Stock Repurchase Program, Authorized Amount |  |  | $ 400.0
Subsequent Event [Member] |  |  |
Treasury Stock Acquired, Average Cost Per Share | $ 45.81 |  |
Treasury Stock, Value, Acquired, Par Value Method | $ 3.9 |  |
Treasury Stock, Shares, Acquired | 85,244 |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 385.1 |  |

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