Quarterly report pursuant to Section 13 or 15(d)

Information on Impaired Loans, Disaggregated by Class of Loans (Detail)

v2.4.0.6
Information on Impaired Loans, Disaggregated by Class of Loans (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Financing Receivable, Impaired [Line Items]    
Recorded Investment $ 58,637 $ 121,689
Unpaid Principal Balance 65,425 124,849
With No Related Allowance Recorded 35,915 45,464
With an Allowance Recorded 22,722 76,225
Related Allowance 6,314 23,382
Real Estate Loan [Member] | Retail [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 2,606 1,260
Unpaid Principal Balance 2,680 1,260
With No Related Allowance Recorded 2,606 1,100
With an Allowance Recorded   160
Related Allowance   126
Real Estate Loan [Member] | Land [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 2,037 3,178
Unpaid Principal Balance 2,204 3,210
With No Related Allowance Recorded 2,037  
With an Allowance Recorded   3,178
Related Allowance   360
Real Estate Loan [Member] | Other [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 532 14,773
Unpaid Principal Balance 532 14,823
With No Related Allowance Recorded   1,131
With an Allowance Recorded 532 13,642
Related Allowance 37 3,004
Real Estate Loan [Member] | Construction [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 7,868 14,120
Unpaid Principal Balance 8,075 14,120
With No Related Allowance Recorded 7,868 14,120
Real Estate Loan [Member] | Residential Property [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 3,272 5,368
Unpaid Principal Balance 3,323 5,408
With No Related Allowance Recorded 576 3,208
With an Allowance Recorded 2,696 2,160
Related Allowance 731 128
Commercial and Industrial Loans [Member] | Unsecured [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 13,595 16,035
Unpaid Principal Balance 14,535 16,559
With No Related Allowance Recorded 451 244
With an Allowance Recorded 13,144 15,791
Related Allowance 3,825 10,793
Commercial and Industrial Loans [Member] | Secured by Real Estate [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 19,841 53,159
Unpaid Principal Balance 20,967 54,156
With No Related Allowance Recorded 16,733 14,990
With an Allowance Recorded 3,108 38,169
Related Allowance 655 7,062
Commercial and Industrial Loans [Member] | Commercial Lines of Credit [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 1,547 1,431
Unpaid Principal Balance 1,713 1,554
With No Related Allowance Recorded 863 715
With an Allowance Recorded 684 716
Related Allowance 3 716
Commercial and Industrial Loans [Member] | SBA Loans [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 6,101 11,619
Unpaid Principal Balance 10,113 12,971
With No Related Allowance Recorded 4,515 9,445
With an Allowance Recorded 1,586 2,174
Related Allowance 665 1,167
Consumer Loans [Member] | Consumer Loans [Member]
    
Financing Receivable, Impaired [Line Items]    
Recorded Investment 1,238 746
Unpaid Principal Balance 1,283 788
With No Related Allowance Recorded 266 511
With an Allowance Recorded 972 235
Related Allowance $ 398 $ 26