Annual report pursuant to Section 13 and 15(d)

Consolidated Statements Of Stockholders' Equity (Parenthetical)

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Consolidated Statements Of Stockholders' Equity (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Consolidated Statement of Stockholders' Equity (Parenthetical) [Abstract]      
Tax on unrealized investment gain $ (4,438) $ (296) $ (334)