Consolidated Statement of Equity (Parentheticals) - $ / shares	1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 11, 2016	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Stockholders' Equity [Abstract]
Dividends declared per share	$ 0.12	$ 0.12	$ 0.44	$ 0.34	$ 0.27