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Consolidated Statements Of Cash Flows (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Consolidated Statements Of Cash Flows [Abstract]      
Tax payments $ 2,292 $ 413 $ 636
Dividends received   $ 600