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Regulatory Requirements And Capital Ratios (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
City National [Member]
   
Dividends Payable $ 22,000  
Parent Company [Member]
   
Dividends Payable 5,192 5,177
Cash balance $ 14,349 $ 2,621