Shareholders' Equity Share repurchase (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions			3 Months Ended
	Apr. 30, 2020	Jan. 23, 2020	Mar. 31, 2020
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 100.0
Common Stock, Dividends, Per Share, Declared		$ 0.28
Treasury Stock, Shares, Acquired			731
Treasury Stock Acquired, Average Cost Per Share			$ 27.36
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased			717
Subsequent Event [Member]
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.28