Subsequent Events Narrative Data (Details) - Dividend Declared [Member]	12 Months Ended
	Dec. 31, 2016 USD ($)
Subsequent Event [Line Items]
Date Declared, cash dividend	Jan. 18, 2017
Cash Dividend Declared, per share	$ 0.29
Payable Date, cash dividend	Feb. 08, 2017
Date of Record, cash dividend declared	Jan. 28, 2017