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Consumer Loans Receivable (Details 2) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Accretable Yield Movement on Acquired Consumer Loans Receivable    
Balance at the beginning of the period $ 106,949  
Additions   118,335
Accretion (3,564) (2,864)
Balance at the end of the period $ 103,385 $ 115,471