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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Cash dividend declared, per share   $ 0.05
Amortization of unrealized gains in respect of derivative instruments designated for cash flow hedge, tax $ 29 $ 32
Change in unrealized gains or losses on marketable securities available-for-sale, tax $ 0 $ 14