CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Statement of Stockholders' Equity [Abstract]
Issuance of common shares under stock based compensation awards, including related tax effects	83,149	169,792
Common stock acquired for treasury	543,406	89,867
Common stock dividend (in dollars per share)	$ 0.53	$ 0.51