Condensed Consolidated Statements of Equity (Parenthetical) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Dividends declared, per common share	$ 0.31	$ 0.28
Additional Paid-in Capital
Income tax on stock option exercise and other shares issued to employees and directors	$ 424	$ 819
Stock option exercises and other shares issued to employees and directors, shares	207	163
Shares issued in connection with acquisition		77
Retained Earnings
Dividends declared, per common share	$ 0.31	$ 0.28
Treasury Shares
Treasury shares purchased		786