Subsequent Events (Details) - Subsequent Event [Member] - Common Stock [Member]	3 Months Ended
	Mar. 31, 2018 $ / shares
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.20
Dividends Payable, Date of Record	Feb. 15, 2018
Dividends Payable, Date to be Paid	Feb. 28, 2018