CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CONDENSED CONSOLIDATED STATEMENTS OF EQUITY
Cash dividends declared, Common, per share (in dollars per share)	$ 0.205	$ 0.205
Translation adjustments, deferred income taxes	$ (4,644)	$ (6,508)
Cash flow hedging instrument adjustments, deferred income taxes	(215)	(1,517)
Pension liability adjustments, deferred income taxes	793	2,105
Marketable securities unrealized gains (loss), deferred income taxes	$ (4)
Stock options exercised (in shares)	30,900	80,442
Vesting of restricted stock units and other (in shares)	38,573	31,552