CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash dividends declared per common share	$ 0.41	$ 0.41
Translation adjustments, deferred income taxes	$ 2,357	$ (7,473)
Cash flow hedging instrument adjustments, deferred income taxes	(895)	(1,742)
Pension liability adjustments, deferred income taxes	(1,325)	947
Unrealized gain (loss) on marketable securities, deferred income taxes	$ (1)	$ 2
Stock options exercised (in shares)	38,900	86,022
Vesting of restricted stock units and other (in shares)	48,519	92,630