XML 63 R53.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
 1 Months Ended 12 Months Ended
Oct. 31, 2009
Dec. 31, 2012
Plans
Office
Number of days on which collection of interest on principal is no longer probable   90 days
Period over which borrower has to demonstrate repayment performance in compliance with restructured terms to take loan out of nonaccrual status   6 months
Original terms of modified loans   6 months
Number of days on which charge-offs unsecured consumer loans are recorded   120 days
Maximum loan amount for credit review process   $ 1,000,000
Agreed percentage of loss in loss sharing agreement 80.00% 80.00%
Loss recoveries on covered assets 144,000,000 144,000,000
Loss amount with respect to covered assets 26,700,000 26,700,000
Agreed percentage of reimbursement in loss reimburse agreement 95.00% 95.00%
Goodwill impairment   0
Number of stock-based compensation plans   3
Number of offices providing services, Citizens Trust   3
Assets under administration, CitizensTrust   2,100,000,000
Assets under management, CitizensTrust   $ 1,580,000,000
Minimum [Member]
    
Number of days over which principal or interest payment are past due to consider non-covered loans   30 days
Number of days for which principal or interest payment on non-covered loans remain accrual   30 days
Maximum [Member]
    
Number of days for which principal or interest payment on non-covered loans remain accrual   89 days
Commercial Loans [Member]
    
Loss sharing agreement term   5 years
Loss recovery provision term   8 years
Single Family Residential Loans [Member]
    
Loss sharing agreement term   10 years
Loss recovery provision term   10 years