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