CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY
Common stock issued - employee stock grants (in shares)	6,170	7,475	5,615
Common stock issued - director stock awards (in shares)	1,352	74	49
Common stock, forfeited (in shares)	1,181
Dividends per share (in dollars per share)	$ 1.08	$ 1.00	$ 0.96