Subsequent Events (Details) - $ / shares	1 Months Ended
	Oct. 31, 2018	Jul. 31, 2018	May 01, 2018	Jan. 30, 2018	Oct. 31, 2017
Subsequent Event [Line Items]
Dividends Payable, Amount Per Share		$ 0.06	$ 0.06	$ 0.05	$ 0.05
Subsequent Event
Subsequent Event [Line Items]
Dividends Payable, Amount Per Share	$ 0.08
Increase in dividend payable, percent	33.00%