CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - Unaudited (Parenthetical)	3 Months Ended
	Mar. 31, 2016 $ / shares shares
Stockholders' Equity Attributable to Parent
Common dividends declared - per share (in dollars per share) | $ / shares	$ 0.60
Issuance of shares of common stock, dividend reinvestment plan	984
Withheld shares of common stock to satisfy tax withholding obligations in connection with the vesting of restricted stock	47,541