Condensed Consolidated Statements of Equity (Parenthetical) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Dividends declared, per common share	$ 0.465	$ 0.42
Additional Paid-in Capital
Income tax on stock option exercise and other shares issued to employees and directors	$ 471	$ 819
Stock option exercises and other shares issued to employees and directors, shares	202	163
Shares issued in connection with acquisition		77
Retained Earnings
Dividends declared, per common share	$ 0.465	$ 0.42
Treasury Shares
Treasury shares purchased		1,193