XML 28 R43.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Allowance for Loan and Lease Losses (Summary of Activity In Allowance for Loan and Lease Losses) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011 | Dec. 31, 2011
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Net loans and leases | $ 13,188,880 | [1] | $ 13,678,542 | [1] | $ 13,188,880 | [1] | $ 13,678,542 | [1] | $ 13,673,645 | [2]
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
Allowance for loan and lease losses | 272,929 | [1] | 250,050 | [1] | 272,929 | [1] | 250,050 | [1] | 270,144 | [2]
Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 86,117 | [3] | 54,629 | [3] | 89,261 | [3] | 51,248 | [3] |  |
Charge-offs | (17,140) | [3] | (26,544) | [3] | (29,887) | [3] | (55,728) | [3] |  |
Recoveries | 142 | [3] | 154 | [3] | 142 | [3] | 162 | [3] |  |
Provisions | 18,678 | [3] | 41,196 | [3] | 28,281 | [3] | 73,753 | [3] |  |
Ending balance | 87,797 | [3] | 69,435 | [3] | 87,797 | [3] | 69,435 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 87,797 | [3] | 69,435 | [3] | 87,797 | [3] | 69,435 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 87,797 | [3] | 69,435 | [3] | 87,797 | [3] | 69,435 | [3] | 89,261 | [3]
Loans and leases acquired with deteriorated credit quality | 1,999,351 |  | 2,399,738 |  | 1,999,351 |  | 2,399,738 |  | 2,362,152 |
Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 186,383 |  | 177,968 |  | 180,883 |  | 176,517 |  |  |
Charge-offs | (13,794) |  | (11,678) |  | (31,425) |  | (22,131) |  |  |
Recoveries | (1,554) |  | (1,544) |  | (3,573) |  | (1,586) |  |  |
Provisions | 10,989 |  | 12,781 |  | 32,101 |  | 24,643 |  |  |
Ending balance | 185,132 |  | 180,615 |  | 185,132 |  | 180,615 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 16,212 |  | 11,925 |  | 16,212 |  | 11,925 |  | 7,962 |
ALLL for loans and leases collectively evaluated for impairment | 152,978 |  | 154,612 |  | 152,978 |  | 154,612 |  | 158,799 |
Non-specific ALLL | 15,942 |  | 14,078 |  | 15,942 |  | 14,078 |  | 14,122 |
Total allowance for loan and lease losses | 185,132 |  | 180,615 |  | 185,132 |  | 180,615 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 221,699 |  | 129,188 |  | 221,699 |  | 129,188 |  | 156,301 |
Loans and leases collectively evaluated for impairment | 11,240,759 |  | 11,399,666 |  | 11,240,759 |  | 11,399,666 |  | 11,425,336 |
Net loans and leases | 11,462,458 |  | 11,528,854 |  | 11,462,458 |  | 11,528,854 |  | 11,581,637 |
Construction and Land Development - Commercial | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 12,736 | [3] | 20,419 | [3] | 16,693 | [3] | 20,654 | [3] |  |
Charge-offs | (3,639) | [3] | (5,156) | [3] | (5,026) | [3] | (9,952) | [3] |  |
Recoveries | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Provisions | 6,886 | [3] | 8,971 | [3] | 4,316 | [3] | 13,532 | [3] |  |
Ending balance | 15,983 | [3] | 24,234 | [3] | 15,983 | [3] | 24,234 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 15,983 | [3] | 24,234 | [3] | 15,983 | [3] | 24,234 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 15,983 | [3] | 24,234 | [3] | 15,983 | [3] | 24,234 | [3] | 16,693 | [3]
Loans and leases acquired with deteriorated credit quality | 272,445 |  | 338,650 |  | 272,445 |  | 338,650 |  | 338,873 |
Construction and Land Development - Commercial | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 6,608 |  | 10,728 |  | 5,467 |  | 10,512 |  |  |
Charge-offs | (3,492) |  | (308) |  | (9,221) |  | (395) |  |  |
Recoveries | (228) |  | (13) |  | (269) |  | (37) |  |  |
Provisions | 1,712 |  | (741) |  | 8,541 |  | (462) |  |  |
Ending balance | 5,056 |  | 9,692 |  | 5,056 |  | 9,692 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 1,621 |  | 5,526 |  | 1,621 |  | 5,526 |  | 1,139 |
ALLL for loans and leases collectively evaluated for impairment | 3,435 |  | 4,166 |  | 3,435 |  | 4,166 |  | 4,328 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 5,056 |  | 9,692 |  | 5,056 |  | 9,692 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 28,230 |  | 28,274 |  | 28,230 |  | 28,274 |  | 26,782 |
Loans and leases collectively evaluated for impairment | 300,921 |  | 378,860 |  | 300,921 |  | 378,860 |  | 354,381 |
Net loans and leases | 329,151 |  | 407,134 |  | 329,151 |  | 407,134 |  | 381,163 |
Commercial Mortgage | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 39,744 | [3] | 14,649 | [3] | 39,557 | [3] | 13,199 | [3] |  |
Charge-offs | (9,182) | [3] | (11,409) | [3] | (15,393) | [3] | (24,007) | [3] |  |
Recoveries | 0 | [3] | 7 | [3] | 0 | [3] | 15 | [3] |  |
Provisions | 5,429 | [3] | 18,846 | [3] | 11,827 | [3] | 32,886 | [3] |  |
Ending balance | 35,991 | [3] | 22,093 | [3] | 35,991 | [3] | 22,093 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 35,991 | [3] | 22,093 | [3] | 35,991 | [3] | 22,093 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 35,991 | [3] | 22,093 | [3] | 35,991 | [3] | 22,093 | [3] | 39,557 | [3]
Loans and leases acquired with deteriorated credit quality | 1,142,677 |  | 1,307,775 |  | 1,142,677 |  | 1,307,775 |  | 1,260,589 |
Commercial Mortgage | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 72,155 |  | 66,190 |  | 67,486 |  | 64,772 |  |  |
Charge-offs | (1,556) |  | (825) |  | (4,020) |  | (3,961) |  |  |
Recoveries | (12) |  | (546) |  | (1,008) |  | (555) |  |  |
Provisions | 355 |  | 1,212 |  | 6,492 |  | 5,757 |  |  |
Ending balance | 70,966 |  | 67,123 |  | 70,966 |  | 67,123 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 9,745 |  | 5,272 |  | 9,745 |  | 5,272 |  | 5,266 |
ALLL for loans and leases collectively evaluated for impairment | 61,221 |  | 61,851 |  | 61,221 |  | 61,851 |  | 62,220 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 70,966 |  | 67,123 |  | 70,966 |  | 67,123 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 139,235 |  | 69,806 |  | 139,235 |  | 69,806 |  | 92,872 |
Loans and leases collectively evaluated for impairment | 5,010,461 |  | 4,791,651 |  | 5,010,461 |  | 4,791,651 |  | 5,012,121 |
Net loans and leases | 5,149,696 |  | 4,861,457 |  | 5,149,696 |  | 4,861,457 |  | 5,104,993 |
Other Commercial Real Estate | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 11,150 | [3] | 4,905 | [3] | 16,862 | [3] | 4,148 | [3] |  |
Charge-offs | (796) | [3] | (3,289) | [3] | (796) | [3] | (11,474) | [3] |  |
Recoveries | 0 | [3] | 91 | [3] | 0 | [3] | 91 | [3] |  |
Provisions | (1,160) | [3] | 11,134 | [3] | (6,872) | [3] | 20,076 | [3] |  |
Ending balance | 9,194 | [3] | 12,841 | [3] | 9,194 | [3] | 12,841 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 9,194 | [3] | 12,841 | [3] | 9,194 | [3] | 12,841 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 9,194 | [3] | 12,841 | [3] | 9,194 | [3] | 12,841 | [3] | 16,862 | [3]
Loans and leases acquired with deteriorated credit quality | 115,787 |  | 173,606 |  | 115,787 |  | 173,606 |  | 158,394 |
Other Commercial Real Estate | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 2,248 |  | 2,204 |  | 2,169 |  | 2,200 |  |  |
Charge-offs | (112) |  | 0 |  | (254) |  | (83) |  |  |
Recoveries | 0 |  | (6) |  | 0 |  | (6) |  |  |
Provisions | 277 |  | 58 |  | 498 |  | 145 |  |  |
Ending balance | 2,413 |  | 2,268 |  | 2,413 |  | 2,268 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 498 |  | 56 |  | 498 |  | 56 |  | 283 |
ALLL for loans and leases collectively evaluated for impairment | 1,915 |  | 2,212 |  | 1,915 |  | 2,212 |  | 1,886 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 2,413 |  | 2,268 |  | 2,413 |  | 2,268 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 4,919 |  | 1,770 |  | 4,919 |  | 1,770 |  | 5,686 |
Loans and leases collectively evaluated for impairment | 157,660 |  | 147,207 |  | 157,660 |  | 147,207 |  | 139,085 |
Net loans and leases | 162,579 |  | 148,977 |  | 162,579 |  | 148,977 |  | 144,771 |
Commercial and Industrial | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 13,728 | [3] | 6,712 | [3] | 5,500 | [3] | 6,828 | [3] |  |
Charge-offs | (2,827) | [3] | (2,413) | [3] | (6,016) | [3] | (2,443) | [3] |  |
Recoveries | 0 | [3] | 12 | [3] | 0 | [3] | 12 | [3] |  |
Provisions | 3,823 | [3] | (2,439) | [3] | 15,240 | [3] | (2,525) | [3] |  |
Ending balance | 14,724 | [3] | 1,872 | [3] | 14,724 | [3] | 1,872 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 14,724 | [3] | 1,872 | [3] | 14,724 | [3] | 1,872 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 14,724 | [3] | 1,872 | [3] | 14,724 | [3] | 1,872 | [3] | 5,500 | [3]
Loans and leases acquired with deteriorated credit quality | 66,442 |  | 125,492 |  | 66,442 |  | 125,492 |  | 113,442 |
Commercial and Industrial | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 24,246 |  | 24,365 |  | 23,723 |  | 24,089 |  |  |
Charge-offs | (1,599) |  | (1,592) |  | (3,046) |  | (2,613) |  |  |
Recoveries | (187) |  | (277) |  | (437) |  | (282) |  |  |
Provisions | 2,081 |  | 1,868 |  | 3,801 |  | 3,160 |  |  |
Ending balance | 24,915 |  | 24,918 |  | 24,915 |  | 24,918 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 2,318 |  | 430 |  | 2,318 |  | 430 |  | 640 |
ALLL for loans and leases collectively evaluated for impairment | 22,597 |  | 24,488 |  | 22,597 |  | 24,488 |  | 23,083 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 24,915 |  | 24,918 |  | 24,915 |  | 24,918 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 18,754 |  | 14,063 |  | 18,754 |  | 14,063 |  | 15,996 |
Loans and leases collectively evaluated for impairment | 1,704,007 |  | 1,791,749 |  | 1,704,007 |  | 1,791,749 |  | 1,748,411 |
Net loans and leases | 1,722,761 |  | 1,805,812 |  | 1,722,761 |  | 1,805,812 |  | 1,764,407 |
Lease Financing | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 3 | [3] | 0 | [3] | 13 | [3] | 0 | [3] |  |
Charge-offs | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Recoveries | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Provisions | (3) | [3] | 0 | [3] | (13) | [3] | 0 | [3] |  |
Ending balance | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] | 13 | [3]
Loans and leases acquired with deteriorated credit quality | 0 |  | 224 |  | 0 |  | 224 |  | 57 |
Lease Financing | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 3,320 |  | 3,369 |  | 3,288 |  | 3,384 |  |  |
Charge-offs | (144) |  | (252) |  | (335) |  | (252) |  |  |
Recoveries | (18) |  | (37) |  | (48) |  | (37) |  |  |
Provisions | 321 |  | 204 |  | 514 |  | 189 |  |  |
Ending balance | 3,515 |  | 3,358 |  | 3,515 |  | 3,358 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 70 |  | 48 |  | 70 |  | 48 |  | 17 |
ALLL for loans and leases collectively evaluated for impairment | 3,445 |  | 3,310 |  | 3,445 |  | 3,310 |  | 3,271 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 3,515 |  | 3,358 |  | 3,515 |  | 3,358 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 354 |  | 617 |  | 354 |  | 617 |  | 328 |
Loans and leases collectively evaluated for impairment | 320,349 |  | 302,487 |  | 320,349 |  | 302,487 |  | 312,541 |
Net loans and leases | 320,703 |  | 303,104 |  | 320,703 |  | 303,104 |  | 312,869 |
Other | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 1,281 |  | 1,419 |  | 1,315 |  | 1,473 |  |  |
Charge-offs | (28) |  | 0 |  | (28) |  | 0 |  |  |
Recoveries | 0 |  | 0 |  | (4) |  | 0 |  |  |
Provisions | (70) |  | (68) |  | (108) |  | (122) |  |  |
Ending balance | 1,183 |  | 1,351 |  | 1,183 |  | 1,351 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 0 |  | 0 |  | 0 |  | 0 |  | 14 |
ALLL for loans and leases collectively evaluated for impairment | 1,183 |  | 1,351 |  | 1,183 |  | 1,351 |  | 1,301 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 1,183 |  | 1,351 |  | 1,183 |  | 1,351 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 742 |  | 0 |  | 742 |  | 0 |  | 193 |
Loans and leases collectively evaluated for impairment | 139,996 |  | 170,758 |  | 139,996 |  | 170,758 |  | 158,176 |
Net loans and leases | 140,738 |  | 170,758 |  | 140,738 |  | 170,758 |  | 158,369 |
Residential Mortgage | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 4,732 | [3] | 1,012 | [3] | 5,433 | [3] | 113 | [3] |  |
Charge-offs | (657) | [3] | (1,927) | [3] | (2,612) | [3] | (2,734) | [3] |  |
Recoveries | 142 | [3] | 44 | [3] | 142 | [3] | 44 | [3] |  |
Provisions | 1,358 | [3] | 4,524 | [3] | 2,612 | [3] | 6,230 | [3] |  |
Ending balance | 5,575 | [3] | 3,653 | [3] | 5,575 | [3] | 3,653 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 5,575 | [3] | 3,653 | [3] | 5,575 | [3] | 3,653 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 5,575 | [3] | 3,653 | [3] | 5,575 | [3] | 3,653 | [3] | 5,433 | [3]
Loans and leases acquired with deteriorated credit quality | 322,053 |  | 354,033 |  | 322,053 |  | 354,033 |  | 327,568 |
Residential Mortgage | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 9,107 |  | 7,129 |  | 8,879 |  | 7,009 |  |  |
Charge-offs | (1,255) |  | (713) |  | (2,290) |  | (719) |  |  |
Recoveries | (269) |  | (3) |  | (312) |  | (4) |  |  |
Provisions | (482) |  | 985 |  | 738 |  | 1,110 |  |  |
Ending balance | 7,639 |  | 7,404 |  | 7,639 |  | 7,404 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 1,451 |  | 455 |  | 1,451 |  | 455 |  | 411 |
ALLL for loans and leases collectively evaluated for impairment | 6,188 |  | 6,949 |  | 6,188 |  | 6,949 |  | 8,468 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 7,639 |  | 7,404 |  | 7,639 |  | 7,404 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 19,305 |  | 11,102 |  | 19,305 |  | 11,102 |  | 9,776 |
Loans and leases collectively evaluated for impairment | 789,925 |  | 814,508 |  | 789,925 |  | 814,508 |  | 774,342 |
Net loans and leases | 809,230 |  | 825,610 |  | 809,230 |  | 825,610 |  | 784,118 |
Revolving Mortgage | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 1,027 | [3] | 1,451 | [3] | 77 | [3] | 676 | [3] |  |
Charge-offs | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Recoveries | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Provisions | 1,521 | [3] | (1,441) | [3] | 2,471 | [3] | (666) | [3] |  |
Ending balance | 2,548 | [3] | 10 | [3] | 2,548 | [3] | 10 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 2,548 | [3] | 10 | [3] | 2,548 | [3] | 10 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 2,548 | [3] | 10 | [3] | 2,548 | [3] | 10 | [3] | 77 | [3]
Loans and leases acquired with deteriorated credit quality | 37,110 |  | 11,933 |  | 37,110 |  | 11,933 |  | 51,552 |
Revolving Mortgage | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 26,911 |  | 19,363 |  | 27,045 |  | 18,016 |  |  |
Charge-offs | (3,331) |  | (4,404) |  | (6,271) |  | (4,446) |  |  |
Recoveries | (198) |  | (159) |  | (414) |  | (159) |  |  |
Provisions | 2,922 |  | 6,902 |  | 5,512 |  | 8,291 |  |  |
Ending balance | 26,700 |  | 22,020 |  | 26,700 |  | 22,020 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 51 |  | 0 |  | 51 |  | 0 |  | 0 |
ALLL for loans and leases collectively evaluated for impairment | 26,649 |  | 22,020 |  | 26,649 |  | 22,020 |  | 27,045 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 26,700 |  | 22,020 |  | 26,700 |  | 22,020 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 3,594 |  | 0 |  | 3,594 |  | 0 |  | 0 |
Loans and leases collectively evaluated for impairment | 2,264,616 |  | 2,303,687 |  | 2,264,616 |  | 2,303,687 |  | 2,296,306 |
Net loans and leases | 2,268,210 |  | 2,303,687 |  | 2,268,210 |  | 2,303,687 |  | 2,296,306 |
Construction and Land Development - Non - Commercial | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 2,720 | [3] | 5,468 | [3] | 4,652 | [3] | 5,607 | [3] |  |
Charge-offs | (9) | [3] | (2,276) | [3] | (9) | [3] | (5,044) | [3] |  |
Recoveries | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Provisions | 1,069 | [3] | 1,528 | [3] | (863) | [3] | 4,157 | [3] |  |
Ending balance | 3,780 | [3] | 4,720 | [3] | 3,780 | [3] | 4,720 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 3,780 | [3] | 4,720 | [3] | 3,780 | [3] | 4,720 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 3,780 | [3] | 4,720 | [3] | 3,780 | [3] | 4,720 | [3] | 4,652 | [3]
Loans and leases acquired with deteriorated credit quality | 39,294 |  | 82,177 |  | 39,294 |  | 82,177 |  | 105,536 |
Construction and Land Development - Non - Commercial | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 1,397 |  | 1,328 |  | 1,427 |  | 1,751 |  |  |
Charge-offs | 0 |  | (363) |  | (675) |  | (373) |  |  |
Recoveries | (145) |  | (70) |  | (152) |  | (73) |  |  |
Provisions | 273 |  | 289 |  | 911 |  | (127) |  |  |
Ending balance | 1,815 |  | 1,324 |  | 1,815 |  | 1,324 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 205 |  | 93 |  | 205 |  | 93 |  | 145 |
ALLL for loans and leases collectively evaluated for impairment | 1,610 |  | 1,231 |  | 1,610 |  | 1,231 |  | 1,282 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 1,815 |  | 1,324 |  | 1,815 |  | 1,324 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 3,458 |  | 2,562 |  | 3,458 |  | 2,562 |  | 3,676 |
Loans and leases collectively evaluated for impairment | 124,268 |  | 142,883 |  | 124,268 |  | 142,883 |  | 133,595 |
Net loans and leases | 127,726 |  | 145,445 |  | 127,726 |  | 145,445 |  | 137,271 |
Consumer | Covered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 277 | [3] | 13 | [3] | 474 | [3] | 23 | [3] |  |
Charge-offs | (30) | [3] | (74) | [3] | (35) | [3] | (74) | [3] |  |
Recoveries | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |  |
Provisions | (245) | [3] | 73 | [3] | (437) | [3] | 63 | [3] |  |
Ending balance | 2 | [3] | 12 | [3] | 2 | [3] | 12 | [3] |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Total allowance for loan and lease losses | 2 | [3] | 12 | [3] | 2 | [3] | 12 | [3] |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases acquired with deteriorated credit quality | 2 | [3] | 12 | [3] | 2 | [3] | 12 | [3] | 474 | [3]
Loans and leases acquired with deteriorated credit quality | 3,543 |  | 5,848 |  | 3,543 |  | 5,848 |  | 6,141 |
Consumer | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 24,288 |  | 27,778 |  | 25,962 |  | 29,448 |  |  |
Charge-offs | (2,277) |  | (3,221) |  | (5,285) |  | (9,289) |  |  |
Recoveries | (497) |  | (433) |  | (929) |  | (433) |  |  |
Provisions | 2,480 |  | 2,089 |  | 3,382 |  | 6,487 |  |  |
Ending balance | 24,988 |  | 27,079 |  | 24,988 |  | 27,079 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 253 |  | 45 |  | 253 |  | 45 |  | 47 |
ALLL for loans and leases collectively evaluated for impairment | 24,735 |  | 27,034 |  | 24,735 |  | 27,034 |  | 25,915 |
Non-specific ALLL | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Total allowance for loan and lease losses | 24,988 |  | 27,079 |  | 24,988 |  | 27,079 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 3,108 |  | 994 |  | 3,108 |  | 994 |  | 992 |
Loans and leases collectively evaluated for impairment | 428,556 |  | 555,876 |  | 428,556 |  | 555,876 |  | 496,378 |
Net loans and leases | 431,664 |  | 556,870 |  | 431,664 |  | 556,870 |  | 497,370 |
Non-Specific | Noncovered Loans |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |
Beginning balance | 14,822 |  | 14,095 |  | 14,122 |  | 13,863 |  |  |
Charge-offs | 0 |  | 0 |  | 0 |  | 0 |  |  |
Recoveries | 0 |  | 0 |  | 0 |  | 0 |  |  |
Provisions | 1,120 |  | (17) |  | 1,820 |  | 215 |  |  |
Ending balance | 15,942 |  | 14,078 |  | 15,942 |  | 14,078 |  |  |
Allowance for Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
ALLL for loans and leases individually evaluated for impairment | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
ALLL for loans and leases collectively evaluated for impairment | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Non-specific ALLL | 15,942 |  | 14,078 |  | 15,942 |  | 14,078 |  | 14,122 |
Total allowance for loan and lease losses | 15,942 |  | 14,078 |  | 15,942 |  | 14,078 |  |  |
Loans and Leases Evaluated for Impairment [Abstract] |  |  |  |  |  |  |  |  |  |
Loans and leases individually evaluated for impairment | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Loans and leases collectively evaluated for impairment | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Net loans and leases | 0 |  | 0 |  | 0 |  | 0 |  | 0 |
Pooled Loans |  |  |  |  |  |  |  |  |  |
Loan and Lease Acquired with Deteriorated Credit Quality [Abstract] |  |  |  |  |  |  |  |  |  |
Allowance for loan and lease losses | $ 19,157 |  |  |  | $ 19,157 |  |  |  | $ 1,099 |
[1] | Unaudited
[2] | Derived from 2011 Annual Report on Form 10-K.
[3] | The allowance of $19,157 at June 30, 2012 and $1,099 at December 31, 2011 relating to pooled loans is included in the loan classes above based on the primary loan class within each pool.

X
- Details
Name: | fcnca_AllowanceForLoansAndLeasesEvaluatedForImpairmentAbstract
Namespace Prefix: | fcnca_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | fcnca_LoanAndLeaseAcquiredWithDeterioratedCreditQualityAbstract
Namespace Prefix: | fcnca_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | fcnca_LoansAndLeasesEvaluatedForImpairmentAbstract
Namespace Prefix: | fcnca_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Non Specific Allowances For Loan And Lease Losses + References No definition available. + Details
Name: | fcnca_NonSpecificAllowancesForLoanAndLeaseLosses
Namespace Prefix: | fcnca_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were acquired with deteriorated credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (h) + Details
Name: | us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (c)(1) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables acquired with deteriorated credit quality. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (g) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesAcquiredWithDeterioratedCreditQuality
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (g) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (g) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Charge to expense for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (c)(2) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesProvisions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reduction to the allowance for credit losses related to collections on financing receivables which have been partially or fully charged off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (c)(4) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecoveries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reduction to the allowance for credit losses related to financing receivables deemed uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (c)(3) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (h) + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (h) + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The allowance for loan and lease losses represents the reserve to cover probable credit losses related to specifically identified loans and leases, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. For banks, include currently required allocated transfer risk reserves. Include carryover of or adjustments to the allowance for loan losses in connection with business combinations determined to be appropriate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 8 -Subparagraph a(ii) -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 9 -Section 03 -Paragraph 7 -Subparagraph d Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 8, 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reflects the aggregate carrying amount of all categories of loans and leases held in portfolio, net of unearned income and the allowance for losses on loans and leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant