XML 67 R59.htm IDEA: XBRL DOCUMENT v2.4.0.6
Bank subsidiary (Details 6) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period $ 37,906 $ 40,646
Charge-offs (3,491) (19,490)
Recoveries 873 1,741
Provision 3,546 15,009
Valuation allowance, balance at the end of the period 38,834 37,906
Ending balance: individually evaluated for impairment 3,091 3,704
Ending balance: collectively evaluated for impairment 35,743 34,202
Financing Receivables:    
Ending balance 3,724,055 3,694,535
Ending balance: individually evaluated for impairment 122,442 128,488
Ending balance: collectively evaluated for impairment 3,601,613 3,566,047
Residential 1-4 family
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 6,500 6,497
Charge-offs (600) (5,528)
Recoveries 489 110
Provision 330 5,421
Valuation allowance, balance at the end of the period 6,719 6,500
Ending balance: individually evaluated for impairment 218 203
Ending balance: collectively evaluated for impairment 6,501 6,297
Financing Receivables:    
Ending balance 1,895,442 1,926,774
Ending balance: individually evaluated for impairment 26,988 26,012
Ending balance: collectively evaluated for impairment 1,868,454 1,900,762
Commercial real estate
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 1,688 1,474
Provision 79 214
Valuation allowance, balance at the end of the period 1,767 1,688
Ending balance: collectively evaluated for impairment 1,767 1,688
Financing Receivables:    
Ending balance 351,716 331,931
Ending balance: individually evaluated for impairment 13,336 13,397
Ending balance: collectively evaluated for impairment 338,380 318,534
Home equity line of credit
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 4,354 4,269
Charge-offs   (1,439)
Recoveries 8 25
Provision 397 1,499
Valuation allowance, balance at the end of the period 4,759 4,354
Ending balance: collectively evaluated for impairment 4,759 4,354
Financing Receivables:    
Ending balance 562,386 535,481
Ending balance: individually evaluated for impairment 1,371 1,450
Ending balance: collectively evaluated for impairment 561,015 534,031
Residential land
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 3,795 6,411
Charge-offs (856) (4,071)
Recoveries 74 170
Provision 493 1,285
Valuation allowance, balance at the end of the period 3,506 3,795
Ending balance: individually evaluated for impairment 2,322 2,525
Ending balance: collectively evaluated for impairment 1,184 1,270
Financing Receivables:    
Ending balance 39,025 45,392
Ending balance: individually evaluated for impairment 34,361 39,364
Ending balance: collectively evaluated for impairment 4,664 6,028
Commercial construction
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 1,888 1,714
Provision 265 174
Valuation allowance, balance at the end of the period 2,153 1,888
Ending balance: collectively evaluated for impairment 2,153 1,888
Financing Receivables:    
Ending balance 47,850 41,950
Ending balance: collectively evaluated for impairment 47,850 41,950
Residential construction
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 4 7
Provision 1 (3)
Valuation allowance, balance at the end of the period 5 4
Ending balance: collectively evaluated for impairment 5 4
Financing Receivables:    
Ending balance 3,082 3,327
Ending balance: collectively evaluated for impairment 3,082 3,327
Commercial loans
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 14,867 16,015
Charge-offs (1,359) (5,335)
Recoveries 196 869
Provision 871 3,318
Valuation allowance, balance at the end of the period 14,575 14,867
Ending balance: individually evaluated for impairment 551 976
Ending balance: collectively evaluated for impairment 14,024 13,891
Financing Receivables:    
Ending balance 727,292 716,427
Ending balance: individually evaluated for impairment 46,363 48,241
Ending balance: collectively evaluated for impairment 680,929 668,186
Consumer loans
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 3,806 3,325
Charge-offs (676) (3,117)
Recoveries 106 567
Provision 514 3,031
Valuation allowance, balance at the end of the period 3,750 3,806
Ending balance: collectively evaluated for impairment 3,750 3,806
Financing Receivables:    
Ending balance 97,262 93,253
Ending balance: individually evaluated for impairment 23 24
Ending balance: collectively evaluated for impairment 97,239 93,229
Unallocated
    
Allowance for loan losses:    
Valuation allowance, balance at the beginning of the period 1,004 934
Provision 596 70
Valuation allowance, balance at the end of the period 1,600 1,004
Ending balance: collectively evaluated for impairment $ 1,600 $ 1,004