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Consolidated Statements of Income (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Consolidated Statements of Income        
Impairment charges, other-than-temporary impairment charges $ (74) $ (953) $ (107) $ 15
Impairment charges, other comprehensive (loss) income $ (263) $ (1,370) $ (386) $ (712)