Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements Of Comprehensive Income (Parenthetical)

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Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Condensed Consolidated Statements Of Comprehensive Income [Abstract]    
Unrealized holding gains arising during the period, tax $ 355 $ 1,645
Reclassification adjustment for losses included in net income, tax $ 2 $ 6