CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Stockholders' Equity [Abstract]
Issuance of common shares under stock based compensation awards, including related tax effects	61,978	148,627
Common stock acquired for treasury	48,607	24,800
Common stock dividend (in dollars per share)	$ 0.17	$ 0.17