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.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

- Definition

Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio, after deducting deferred income, but before deducting the allowance for losses on loans and leases.

+ References+ Details

Loans Held for Investment (LHFI) and Allowance for Loan Losses, excluding Covered Loans Part 1 (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2009
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	$ 5,783,712	$ 6,060,242
Less Allowance For Loan Losses	89,463	93,510	94,458	103,662
Net Loans Held For Investment, Excluding Covered Loans	5,694,249	5,966,732
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	99,578	142,923
Loans Held For Investment, Collectively Evaluated For Impairment	5,684,134	5,917,319
Total	5,783,712	6,060,242
Real Estate Secured Financing Receivable [Member] \| Construction Land Development And Other Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	481,821	583,316
Less Allowance For Loan Losses	29,540	35,562	34,005	43,552
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	29,594	57,831
Loans Held For Investment, Collectively Evaluated For Impairment	452,227	525,485
Total	481,821	583,316
Real Estate Secured Financing Receivable [Member] \| Residential Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	1,717,366	1,732,056
Less Allowance For Loan Losses	11,538	13,051	11,895	13,151
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	23,558	30,313
Loans Held For Investment, Collectively Evaluated For Impairment	1,693,808	1,701,743
Total	1,717,366	1,732,056
Real Estate Secured Financing Receivable [Member] \| Nonresidential Properties Financing Receivables [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	1,437,573	1,498,108
Less Allowance For Loan Losses	22,738	20,980	21,272	20,110
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	25,303	29,013
Loans Held For Investment, Collectively Evaluated For Impairment	1,412,270	1,469,095
Total	1,437,573	1,498,108
Real Estate Secured Financing Receivable [Member] \| Other Real Estate Secured Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	207,984	231,963
Less Allowance For Loan Losses	2,974	1,582	1,535	1,631
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	4,821	6,154
Loans Held For Investment, Collectively Evaluated For Impairment	203,163	225,809
Total	207,984	231,963
Commercial And Industrial Loans Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	1,083,753	1,068,369
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	14,204	16,107
Loans Held For Investment, Collectively Evaluated For Impairment	1,069,549	1,052,262
Total	1,083,753	1,068,369
Consumer Loans Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	268,002	402,165
Less Allowance For Loan Losses	3,991	5,400	5,906	7,246
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	907	2,112
Loans Held For Investment, Collectively Evaluated For Impairment	267,095	400,053
Total	268,002	402,165
Other Loans Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	587,213	544,265
Less Allowance For Loan Losses	2,930	2,160	2,348	1,697
Loans and Leases Receivable, Other Information [Abstract]
Loans Held For Investment, Individually Evaluated For Impairment	1,191	1,393
Loans Held For Investment, Collectively Evaluated For Impairment	586,022	542,872
Total	587,213	544,265
Construction Land Development And Other Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	481,821	583,316
Loans and Leases Receivable, Other Information [Abstract]
Total	481,821	583,316
Residential Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	1,717,366	1,732,056
Loans and Leases Receivable, Other Information [Abstract]
Total	1,717,366	1,732,056
Nonresidential Properties Financing Receivables [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	1,437,573	1,498,108
Loans and Leases Receivable, Other Information [Abstract]
Total	1,437,573	1,498,108
Other Real Estate Secured Financing Receivable [Member]
Loan Portfolio [Abstract]
Loans Held For Investment, Excluding Covered Loans	207,984	231,963
Loans and Leases Receivable, Other Information [Abstract]
Total	$ 207,984	$ 231,963