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Stockholder's Equity ( Stock Dividend Schedule) (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Dividends Payable Date Of Declaration   Sep. 09, 2011
DividendsPayableDateOfRecordDayMonthAndYear   Dec. 02, 2011
Stock Dividend Percentage Paid   5.00%
CommonStockDividendsPerShareDeclared   $ 8.60
Common Stock Dividends, Shares 0 651,367
Stock Issued During Period, Value, Stock Dividend   $ 6,195,148