Equity Narratives (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Mar. 31, 2015	Apr. 26, 2016
Subsequent Event [Line Items]
Treasury Stock, Shares, Acquired		2,285,230
Treasury Stock, Value, Acquired, Par Value Method		$ 54.6
Treasury Stock Acquired, Average Cost Per Share		$ 23.91
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 226.3
Dividends, Common Stock, Cash		$ 23.3
Dividends declared per share		$ 0.12	$ 0.10
Subsequent Event [Member]
Subsequent Event [Line Items]
Treasury Stock, Shares, Acquired	419,147
Treasury Stock, Value, Acquired, Par Value Method	$ 10.5
Treasury Stock Acquired, Average Cost Per Share	$ 24.96
Stock Repurchase Program, Remaining Authorized Repurchase Amount				$ 215.8