$TCBI
Texas Capital Bancshares Inc Stock $tcbi

$tcbi Overview Financials Valuation SEC Filings Company Website

2012 Q2 Form 10-K Financial Statement

#000119312513068855 Filed on February 21, 2013

Income Statement

Concept	2012 Q2	2011 Q4	2011 Q3
Revenue	$95.55M	$92.97M	$83.26M
YoY Change	26.96%		14.69%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$2.720M		$2.210M
YoY Change	5.26%		-2.04%
% of Gross Profit
Depreciation & Amortization	$1.200M	$5.000M	$1.300M
YoY Change	-7.69%	233.33%	-13.33%
% of Gross Profit
Operating Expenses	$2.720M		$2.210M
YoY Change	5.26%		-2.04%
Operating Profit
YoY Change
Interest Expense	$4.906M	$4.820M	$4.065M
YoY Change	17.79%		-59.33%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$46.13M	$40.79M	$33.62M
YoY Change	78.92%	119.29%	130.16%
Income Tax	$16.50M	$15.00M	$11.91M
% Of Pretax Income	35.77%	36.78%	35.42%
Net Earnings	$29.60M	$25.70M	$21.70M
YoY Change	77.74%	112.4%	127.83%
Net Earnings / Revenue	30.98%	27.64%	26.07%
Basic Earnings Per Share	$0.78	$0.69	$0.58
Diluted Earnings Per Share	$0.76	$0.67	$0.56
COMMON SHARES
Basic Shares Outstanding	38.01M shares	37.55M shares	37.41M shares
Diluted Shares Outstanding	39.14M shares	38.61M shares	38.44M shares

Balance Sheet

Concept	2012 Q2	2011 Q4	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$142.7M	$110.6M	$120.6M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$11.45M	$11.46M	$11.60M
YoY Change	-5.55%	-0.96%	-3.37%
Goodwill	$14.04M	$14.04M
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$0.00	$0.00	$0.00
YoY Change			-100.0%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$10.54B	$8.138B	$7.706B
YoY Change	57.1%	26.24%	21.45%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.000M	$1.000M	$1.000M
YoY Change	0.0%	-66.67%	-66.67%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$294.0M	$436.0M	$349.0M
YoY Change	34.25%	47.8%	30.22%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.000M	$1.000M	$1.000M
YoY Change	0.0%	-66.67%	-66.67%
LONG-TERM LIABILITIES
Long-Term Debt	$113.0M	$113.0M	$113.0M
YoY Change	0.0%	0.0%	0.0%
Other Long-Term Liabilities	$80.00M	$83.00M	$65.00M
YoY Change	66.67%	69.39%	80.56%
Total Long-Term Liabilities	$193.0M	$196.0M	$178.0M
YoY Change	19.88%	20.99%	19.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.000M	$1.000M	$1.000M
Total Long-Term Liabilities	$193.0M	$196.0M	$178.0M
Total Liabilities	$9.705B	$7.521B	$7.118B
YoY Change	57.91%	27.09%	22.09%
SHAREHOLDERS EQUITY
Retained Earnings	$382.5M	$261.8M	$236.0M
YoY Change	78.43%	40.89%
Common Stock	$407.0K	$376.0K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$8.000K	$8.000K	$8.000K
YoY Change	0.0%	0.0%
Treasury Stock Shares	417.0 shares	417.0 shares	417.0 shares
Shareholders Equity	$836.2M	$616.3M	$587.9M
YoY Change
Total Liabilities & Shareholders Equity	$10.54B	$8.138B	$7.706B
YoY Change	57.1%	26.24%	21.45%

Cashflow Statement

Concept	2012 Q2	2011 Q4	2011 Q3
OPERATING ACTIVITIES
Net Income	$29.60M	$25.70M	$21.70M
YoY Change	77.74%	112.4%	127.83%
Depreciation, Depletion And Amortization	$1.200M	$5.000M	$1.300M
YoY Change	-7.69%	233.33%	-13.33%
Cash From Operating Activities	-$131.7M	$758.2M	-$796.4M
YoY Change	-56.86%	235.64%	112.94%
INVESTING ACTIVITIES
Capital Expenditures	-$1.500M	-$800.0K	-$300.0K
YoY Change	15.38%		-86.96%
Acquisitions
YoY Change
Other Investing Activities	-$431.8M	-$1.157B	-$128.6M
YoY Change	-5.43%	406.21%	805.63%
Cash From Investing Activities	-$433.3M	-$1.158B	-$128.9M
YoY Change	-5.37%	406.56%	681.21%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	549.5M	389.2M	956.6M
YoY Change	-12.61%	395.17%	156.26%
NET CHANGE
Cash From Operating Activities	-131.7M	758.2M	-796.4M
Cash From Investing Activities	-433.3M	-1.158B	-128.9M
Cash From Financing Activities	549.5M	389.2M	956.6M
Net Change In Cash	-15.50M	-10.10M	31.30M
YoY Change	-88.47%	-113.29%	-281.98%
FREE CASH FLOW
Cash From Operating Activities	-$131.7M	$758.2M	-$796.4M
Capital Expenditures	-$1.500M	-$800.0K	-$300.0K
Free Cash Flow	-$130.2M	$759.0M	-$796.1M
YoY Change	-57.17%	235.99%	114.18%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Type DocumentType	10-K
	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
	dei	Amendment Flag AmendmentFlag	false
	dei	Entity Registrant Name EntityRegistrantName	TEXAS CAPITAL BANCSHARES INC/TX
	dei	Entity Central Index Key EntityCentralIndexKey	0001077428
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	40758089	shares
CY2013Q1	dei	Entity Public Float EntityPublicFloat	1809251571	USD
CY2012Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	111938000	USD
CY2012Q2	us-gaap	Federal Funds Sold FederalFundsSold	0	USD
CY2012Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	100195000	USD
CY2012Q2	us-gaap	Loans Held For Sale Mortgages LoansHeldForSaleMortgages	3175272000	USD
CY2011	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	352000	USD
CY2012Q2	us-gaap	Loans Held For Sale Other LoansHeldForSaleOther	302000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	6785535000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	74337000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	6711198000	USD
CY2012Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11445000	USD
CY2012Q2	us-gaap	Other Assets OtherAssets	316201000	USD
CY2012Q2	tcbi	Goodwill And Intangible Assets Net GoodwillAndIntangibleAssetsNet	19883000	USD
CY2012Q2	us-gaap	Assets Assets	10540844000	USD
CY2012Q2	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	2535375000	USD
CY2012Q2	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	4576120000	USD
CY2012Q2	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	329309000	USD
CY2012Q2	us-gaap	Deposits Deposits	7440804000	USD
CY2012Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	650000	USD
CY2012Q2	us-gaap	Other Liabilities OtherLiabilities	91581000	USD
CY2012Q2	us-gaap	Federal Funds Purchased FederalFundsPurchased	273179000	USD
CY2012Q2	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	23936000	USD
CY2012Q2	us-gaap	Other Borrowings OtherBorrowings	1650046000	USD
CY2012Q2	us-gaap	Subordinated Debt SubordinatedDebt	113406000	USD
CY2012Q2	us-gaap	Liabilities Liabilities	9704602000	USD
CY2012Q2	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2012Q2	us-gaap	Common Stock Value CommonStockValue	407000	USD
CY2012Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	450116000	USD
CY2012Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	382455000	USD
CY2012Q2	us-gaap	Treasury Stock Value TreasuryStockValue	8000	USD
CY2012Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	3272000	USD
CY2012Q2	us-gaap	Stockholders Equity StockholdersEquity	836242000	USD
CY2012Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10540844000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	616331000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	7521287000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	4722000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11457000	USD
CY2011Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	1751944000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8137618000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	261783000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	5502076000	USD
CY2011Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	412249000	USD
CY2011Q4	us-gaap	Loans Held For Sale Other LoansHeldForSaleOther	393000	USD
CY2011Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	79248000	USD
CY2011Q4	us-gaap	Deposits Deposits	5556257000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	70295000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	8000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	5572371000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	268863000	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	3324040000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	376000	USD
CY2011Q4	us-gaap	Assets Assets	8137618000	USD
CY2011Q4	us-gaap	Subordinated Debt SubordinatedDebt	113406000	USD
CY2011	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	37000	USD
CY2011Q4	us-gaap	Other Borrowings OtherBorrowings	1332066000	USD
CY2011Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	23801000	USD
CY2011Q4	us-gaap	Federal Funds Sold FederalFundsSold	0	USD
CY2011Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	599000	USD
CY2011Q4	tcbi	Goodwill And Intangible Assets Net GoodwillAndIntangibleAssetsNet	20480000	USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	480273000	USD
CY2011Q4	us-gaap	Loans Held For Sale Mortgages LoansHeldForSaleMortgages	2080081000	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	82909000	USD
CY2011Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	143710000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	349458000	USD
CY2012Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
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CY2012Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2012Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	40727996	shares
CY2012Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	417	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	37666708	shares
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CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2012Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	94410000	USD
CY2011Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	31310000	USD
CY2012Q2	us-gaap	Senior Notes SeniorNotes	111000000	USD
CY2011Q4	us-gaap	Senior Notes SeniorNotes	0	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	393548000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	4688000	USD
	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	13000	USD
	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	208000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	398457000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	13644000	USD
	us-gaap	Interest Expense Federal Funds Purchased InterestExpenseFederalFundsPurchased	979000	USD
	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	13000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	2149000	USD
	us-gaap	Interest Expense Trust Preferred Securities InterestExpenseTrustPreferredSecurities	2756000	USD
	us-gaap	Interest Expense InterestExpense	21578000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	376879000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	11500000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	365379000	USD
	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	6605000	USD
	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	4822000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2168000	USD
	us-gaap	Noninterest Income Other NoninterestIncomeOther	6940000	USD
	us-gaap	Noninterest Income NoninterestIncome	43040000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	121456000	USD
	us-gaap	Occupancy Net OccupancyNet	14852000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	13449000	USD
	us-gaap	Professional Fees ProfessionalFees	17557000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	11158000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	5568000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	9075000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	22729000	USD
	us-gaap	Noninterest Expense NoninterestExpense	219844000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	188575000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	120709000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-37000	USD
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.09
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	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.01
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.00
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CY2010	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	10000	USD
CY2010	us-gaap	Interest Expense Other InterestExpenseOther	48000	USD
CY2010	us-gaap	Interest Expense Trust Preferred Securities InterestExpenseTrustPreferredSecurities	3672000	USD
CY2010	us-gaap	Interest Expense InterestExpense	38136000	USD
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CY2010	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	53500000	USD
CY2010	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	188174000	USD
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CY2010	us-gaap	Noninterest Income Other NoninterestIncomeOther	7680000	USD
CY2010	us-gaap	Noninterest Income NoninterestIncome	32263000	USD
CY2010	us-gaap	Labor And Related Expense LaborAndRelatedExpense	85298000	USD
CY2010	us-gaap	Occupancy Net OccupancyNet	12314000	USD
CY2010	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	5419000	USD
CY2010	us-gaap	Professional Fees ProfessionalFees	11837000	USD
CY2010	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	8511000	USD
CY2010	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	9202000	USD
CY2010	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	10404000	USD
CY2010	us-gaap	Other Noninterest Expense OtherNoninterestExpense	20503000	USD
CY2010	us-gaap	Noninterest Expense NoninterestExpense	163488000	USD
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CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-136000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.02
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CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
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CY2011	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	6458000	USD
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	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	120672000	USD
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CY2011	us-gaap	Interest Expense Deposits InterestExpenseDeposits	14950000	USD
CY2011	us-gaap	Interest Expense Federal Funds Purchased InterestExpenseFederalFundsPurchased	602000	USD
CY2011	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	10000	USD
CY2011	us-gaap	Interest Expense Other InterestExpenseOther	528000	USD
CY2011	us-gaap	Interest Expense Trust Preferred Securities InterestExpenseTrustPreferredSecurities	2573000	USD
CY2011	us-gaap	Interest Expense InterestExpense	18663000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	302937000	USD
CY2011	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	28500000	USD
CY2011	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	274437000	USD
CY2011	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	6480000	USD
CY2011	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	4219000	USD
CY2011	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2095000	USD
CY2011	us-gaap	Noninterest Income Other NoninterestIncomeOther	6168000	USD
CY2011	us-gaap	Noninterest Income NoninterestIncome	32232000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	100535000	USD
CY2011	us-gaap	Occupancy Net OccupancyNet	13657000	USD
CY2011	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	11109000	USD
CY2011	us-gaap	Professional Fees ProfessionalFees	14996000	USD
CY2011	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	9608000	USD
CY2011	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	7543000	USD
CY2011	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	9586000	USD
CY2011	us-gaap	Other Noninterest Expense OtherNoninterestExpense	21167000	USD
CY2011	us-gaap	Noninterest Expense NoninterestExpense	188201000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	76102000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-126000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.04
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.03
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.99
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.98
	tcbi	Mortgage And Premium Finance Loan Fees MortgageAndPremiumFinanceLoanFees	17596000	USD
CY2011	tcbi	Mortgage And Premium Finance Loan Fees MortgageAndPremiumFinanceLoanFees	11335000	USD
CY2010	tcbi	Mortgage And Premium Finance Loan Fees MortgageAndPremiumFinanceLoanFees	11190000	USD
	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	67866000	USD
CY2011	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	42366000	USD
CY2010	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	19626000	USD
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	2037000	USD
CY2011	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	0	USD
CY2010	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	0	USD
CY2010	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	1266000	USD
CY2011	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	1935000	USD
	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	4909000	USD
	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	4000000	USD
CY2011	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	0	USD
CY2010	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	0	USD
CY2010	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	37187000	USD
CY2011	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	75976000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-2231000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-974000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1246000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1450000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-633000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-810000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	36377000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	75343000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	119222000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4782000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5364000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-38000	USD
CY2011	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-78000	USD
	us-gaap	Tax Benefit From Stock Options Exercised TaxBenefitFromStockOptionsExercised	7769000	USD
CY2011	us-gaap	Tax Benefit From Stock Options Exercised TaxBenefitFromStockOptionsExercised	3139000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	22197000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	8970000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	51110692000	USD
CY2011	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	27234509000	USD
	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	50015503000	USD
CY2011	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	26348634000	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	917000	USD
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	80000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	56679000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	59508000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3066000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	32694000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-1020399000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-809993000	USD
	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	54000	USD
CY2011	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-29000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1020345000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-810022000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	14260000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	8240000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1220626000	USD
CY2011	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	890753000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3538000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3286000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	14921000	USD
CY2011	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	23329000	USD
	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	0	USD
CY2011	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	11482000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-1167996000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-841531000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1884547000	USD
CY2011	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	100856000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	318115000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	1341761000	USD
	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	22197000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	8970000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	139070000	USD
CY2011	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	-128468000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	2284131000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	1582245000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	95790000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-69308000	USD
CY2012Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	206348000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	110558000	USD
	us-gaap	Interest Paid InterestPaid	21527000	USD
CY2011	us-gaap	Interest Paid InterestPaid	20643000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	69095000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	32127000	USD
	tcbi	Principal Payments Received On Available For Sale Securities PrincipalPaymentsReceivedOnAvailableForSaleSecurities	27000000	USD
CY2011	tcbi	Principal Payments Received On Available For Sale Securities PrincipalPaymentsReceivedOnAvailableForSaleSecurities	42421000	USD
CY2010	tcbi	Principal Payments Received On Available For Sale Securities PrincipalPaymentsReceivedOnAvailableForSaleSecurities	74895000	USD
CY2010	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	866000	USD
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	2190000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	355000	USD
CY2010	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	29559000	USD
CY2011	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	24327000	USD
	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	3489000	USD
CY2010	us-gaap	Interest Paid InterestPaid	38025000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	27134000	USD
CY2010	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1334676000	USD
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-362404000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1774000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6821000	USD
CY2010	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-139000	USD
CY2010	us-gaap	Tax Benefit From Stock Options Exercised TaxBenefitFromStockOptionsExercised	621000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1774000	USD
CY2010	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	22859900000	USD
CY2010	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	22359195000	USD
CY2010	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-93000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	24287000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	25207000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-403794000	USD
CY2010	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-128000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-403922000	USD
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	4425000	USD
CY2010	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	303618000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3832000	USD
CY2010	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	5980000	USD
CY2010	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	10152000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-232302000	USD
CY2010	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	296738000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	690651000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	54427000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	125439000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	179866000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3131000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6682000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5613000	USD
CY2010	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	0	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	13000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	10000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	12018000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	7340000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	6770000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	86987000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12477000	USD
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	111000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	481360000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	621000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6770000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	866000	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	12477000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	528319000	USD
	us-gaap	Available For Sale Securities Income Tax Expense On Change In Unrealized Holding Gain Or Loss AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss	781000	USD
CY2011	us-gaap	Available For Sale Securities Income Tax Expense On Change In Unrealized Holding Gain Or Loss AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss	341000	USD
CY2010	us-gaap	Available For Sale Securities Income Tax Expense On Change In Unrealized Holding Gain Or Loss AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss	436000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	3139000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7340000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2190000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	616331000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	7769000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5578000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	355000	USD
CY2012Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	836242000	USD
CY2010	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-10152000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	86987000	USD
	us-gaap	Use Of Estimates UseOfEstimates	<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0px;">Use of Estimates</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States</font><font style="font-family:Times New Roman;font-size:10pt;"> (“GAAP”)</font><font style="font-family:Times New Roman;font-size:10pt;"> requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for possible loan losses, the fair value of stock-based compensation awards, the fair values of financial instruments and the status of contingencies are particularly susceptible to significant change in the near term.</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p>
CY2012Q2	tcbi	Loans And Leases Receivable Net Reported Amount Including Loans Held For Sale LoansAndLeasesReceivableNetReportedAmountIncludingLoansHeldForSale	9886470000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial Construction LoansReceivableCommercialConstruction	422026000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	5603041000	USD
CY2012Q2	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	0	USD
CY2012Q2	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	5034000	USD
CY2012Q2	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	100195000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	136446000	USD
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	7264000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	0	USD
CY2011Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	143710000	USD
CY2012Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	95161000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2012Q2	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	45449000	USD
CY2011Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	95573000	USD
	tcbi	Available For Sale Securities Average Expected Life AvailableForSaleSecuritiesAverageExpectedLife	1.6	years
CY2012Q2	us-gaap	Loans Receivable Commercial And Industrial LoansReceivableCommercialAndIndustrial	4106419000	USD
CY2012Q2	us-gaap	Loans Receivable Commercial Construction LoansReceivableCommercialConstruction	737637000	USD
CY2012Q2	us-gaap	Loans Receivable Commercial Real Estate LoansReceivableCommercialRealEstate	1892451000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Consumer LoansAndLeasesReceivableConsumer	19493000	USD
CY2012Q2	us-gaap	Leases Receivable Commercial Lease Financing LeasesReceivableCommercialLeaseFinancing	69470000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	6825470000	USD
CY2012Q2	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	39935000	USD
CY2010	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	566000	USD
	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2400000	USD
CY2011	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	5900000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial And Industrial LoansReceivableCommercialAndIndustrial	3275150000	USD
CY2011Q4	us-gaap	Leases Receivable Commercial Lease Financing LeasesReceivableCommercialLeaseFinancing	61792000	USD
CY2011Q4	tcbi	Loans And Leases Receivable Net Reported Amount Including Loans Held For Sale LoansAndLeasesReceivableNetReportedAmountIncludingLoansHeldForSale	7582157000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Consumer LoansAndLeasesReceivableConsumer	24822000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	30670000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial Real Estate LoansReceivableCommercialRealEstate	1819251000	USD
CY2012Q2	us-gaap	Participating Mortgage Loans Mortgage Obligations Amount ParticipatingMortgageLoansMortgageObligationsAmount	436000000	USD
	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	10107000	USD
	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	1795000	USD
	us-gaap	Allowance For Loan And Lease Losses Adjustments Net AllowanceForLoanAndLeaseLossesAdjustmentsNet	6065000	USD
CY2012Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	3930000	USD
CY2012Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	0	USD
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	-7860000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	71510000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Net AllowanceForLoanAndLeaseLossesProvisionForLossNet	27935000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	-31328000	USD
CY2011	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	2178000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Adjustments Net AllowanceForLoanAndLeaseLossesAdjustmentsNet	29150000	USD
CY2011Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	5271000	USD
CY2011Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	0	USD
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	2600000	USD
CY2011	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	2200000	USD
CY2010	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	10500000	USD
CY2012Q2	tcbi	Nonaccrual Loans Earning On Cash Basis NonaccrualLoansEarningOnCashBasis	17200000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	55833000	USD
CY2012Q2	tcbi	Financing Receivable Modifications Non Accrual Loans Met Criteria For Restrucutred FinancingReceivableModificationsNonAccrualLoansMetCriteriaForRestrucutred	19600000	USD
CY2010	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	120600000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment30 To59 Days Past Due FinancingReceivableRecordedInvestment30To59DaysPastDue	25255000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment60 To89 Days Past Due FinancingReceivableRecordedInvestment60To89DaysPastDue	6350000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment Equal To Greater Than90 Days Past Due FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue	3674000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	35279000	USD
CY2012Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	6734358000	USD
CY2012Q2	tcbi	Loans And Leases Receivable Gross Carrying Amount Excluding Nonaccrual LoansAndLeasesReceivableGrossCarryingAmountExcludingNonaccrual	6769637000	USD
CY2011Q4	us-gaap	Financing Receivable Modifications Number Of Contracts FinancingReceivableModificationsNumberOfContracts	14	number
CY2011Q4	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment FinancingReceivableModificationsPreModificationRecordedInvestment	49351000	USD
CY2011Q4	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment FinancingReceivableModificationsPostModificationRecordedInvestment	35231000	USD
	tcbi	Financing Receivable Modifications Post Modification Recorded Investment Increase Decrease FinancingReceivableModificationsPostModificationRecordedInvestmentIncreaseDecrease	647000000000	USD
CY2012Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	9643000	USD
CY2011Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	35231000	USD
CY2012Q2	tcbi	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing Premium Finance Loans FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruingPremiumFinanceLoans	2800000	USD
CY2012Q2	tcbi	Financing Receivable Modifications Loans Considered Restructured Nonaccrual Status FinancingReceivableModificationsLoansConsideredRestructuredNonaccrualStatus	10400000	USD
CY2012Q2	tcbi	Financing Receivable Modifications Loans Considered Restructured Nonaccrual Status Unfunded Commitments FinancingReceivableModificationsLoansConsideredRestructuredNonaccrualStatusUnfundedCommitments	599000	USD
CY2012Q2	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment FinancingReceivableModificationsPreModificationRecordedInvestment	10290000	USD
CY2012Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment FinancingReceivableModificationsPostModificationRecordedInvestment	9643000	USD
CY2012Q2	us-gaap	Financing Receivable Modifications Number Of Contracts FinancingReceivableModificationsNumberOfContracts	6	number
CY2011Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	34077000	USD
CY2010Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	42261000	USD
CY2009Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	27264000	USD
CY2012Q2	tcbi	Real Estate Acquired Through Foreclosure Additions RealEstateAcquiredThroughForeclosureAdditions	3434000	USD
CY2011Q4	tcbi	Real Estate Acquired Through Foreclosure Additions RealEstateAcquiredThroughForeclosureAdditions	22180000	USD
CY2010Q4	tcbi	Real Estate Acquired Through Foreclosure Additions RealEstateAcquiredThroughForeclosureAdditions	29559000	USD
CY2010Q4	tcbi	Real Estate Acquired Through Foreclosure Sales RealEstateAcquiredThroughForeclosureSales	-6058000	USD
CY2011Q4	tcbi	Real Estate Acquired Through Foreclosure Sales RealEstateAcquiredThroughForeclosureSales	-23566000	USD
CY2012Q2	tcbi	Real Estate Acquired Through Foreclosure Sales RealEstateAcquiredThroughForeclosureSales	-14637000	USD
	us-gaap	Real Estate Owned Valuation Allowance Provision RealEstateOwnedValuationAllowanceProvision	-4488000	USD
CY2011	us-gaap	Real Estate Owned Valuation Allowance Provision RealEstateOwnedValuationAllowanceProvision	-3922000	USD
CY2011Q4	tcbi	Real Estate Acquired Through Foreclosure Direct Write Offs RealEstateAcquiredThroughForeclosureDirectWriteOffs	-2876000	USD
CY2012Q2	tcbi	Real Estate Acquired Through Foreclosure Direct Write Offs RealEstateAcquiredThroughForeclosureDirectWriteOffs	-2395000	USD
CY2010	us-gaap	Real Estate Owned Valuation Allowance Provision RealEstateOwnedValuationAllowanceProvision	-6587000	USD
CY2010Q4	tcbi	Real Estate Acquired Through Foreclosure Direct Write Offs RealEstateAcquiredThroughForeclosureDirectWriteOffs	-1917000	USD
CY2012Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	15991000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Noncurrent Assets BusinessAcquisitionPurchasePriceAllocationNoncurrentAssets	11500000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	7200000	USD
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Noncurrent Assets BusinessAcquisitionPurchasePriceAllocationNoncurrentAssets	2300000	USD
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	224000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets	162000	USD
CY2012Q2	us-gaap	Goodwill Gross GoodwillGross	14416000	USD
CY2012Q2	us-gaap	Goodwill Goodwill	14042000	USD
CY2012Q2	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	7996000	USD
CY2012Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	-2155000	USD
CY2012Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5841000	USD
CY2012Q2	tcbi	Goodwill And Intangible Assets Gross GoodwillAndIntangibleAssetsGross	22412000	USD
CY2012Q2	tcbi	Goodwill And Intangible Assets Accumulated Amortization GoodwillAndIntangibleAssetsAccumulatedAmortization	-2529000	USD
CY2011Q4	us-gaap	Goodwill Gross GoodwillGross	14416000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	14042000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	7996000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	-1558000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6438000	USD
CY2011Q4	tcbi	Goodwill And Intangible Assets Gross GoodwillAndIntangibleAssetsGross	22412000	USD
CY2011Q4	tcbi	Goodwill And Intangible Assets Accumulated Amortization GoodwillAndIntangibleAssetsAccumulatedAmortization	-1932000	USD
CY2012Q2	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	-374000	USD
CY2011Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	-374000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	597000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	485000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	323000	USD
	us-gaap	Future Amortization Expense Year One FutureAmortizationExpenseYearOne	596000	USD
	us-gaap	Future Amortization Expense Year Two FutureAmortizationExpenseYearTwo	591000	USD
	us-gaap	Future Amortization Expense Year Three FutureAmortizationExpenseYearThree	490000	USD
	us-gaap	Future Amortization Expense Year Four FutureAmortizationExpenseYearFour	393000	USD
	us-gaap	Future Amortization Expense Year Five FutureAmortizationExpenseYearFive	365000	USD
	us-gaap	Future Amortization Expense After Year Five FutureAmortizationExpenseAfterYearFive	3406000	USD
	us-gaap	Finite Lived Intangible Assets Future Amortization Expense FiniteLivedIntangibleAssetsFutureAmortizationExpense	5841000	USD
CY2011Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	2288804000	USD
CY2011Q4	us-gaap	Time Deposits TimeDeposits	586506000	USD
CY2012Q2	us-gaap	Time Deposits TimeDeposits	426077000	USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	3804313000	USD
CY2012Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4905429000	USD
CY2011Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	448730000	USD
CY2012Q2	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	979642000	USD
CY2012Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	3170401000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	36257000	USD
CY2012Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	39428000	USD
CY2012Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	27983000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	24800000	USD
CY2012Q2	tcbi	Interest Bearing Time Deposit Maturities Year One InterestBearingTimeDepositMaturitiesYearOne	680322000	USD
CY2012Q2	tcbi	Interest Bearing Time Deposit Maturities Year Two InterestBearingTimeDepositMaturitiesYearTwo	63301000	USD
CY2012Q2	tcbi	Interest Bearing Time Deposit Maturities Year Three InterestBearingTimeDepositMaturitiesYearThree	8945000	USD
CY2012Q2	tcbi	Interest Bearing Time Deposit Maturities Year Four InterestBearingTimeDepositMaturitiesYearFour	678000	USD
CY2012Q2	tcbi	Interest Bearing Time Deposit Maturities Year Five InterestBearingTimeDepositMaturitiesYearFive	2051000	USD
CY2012Q2	tcbi	Interest Bearing Time Deposit Maturities After Year Five InterestBearingTimeDepositMaturitiesAfterYearFive	89000	USD
CY2012Q2	tcbi	Interest Bearing Time Deposits InterestBearingTimeDeposits	755386000	USD
CY2012Q2	tcbi	Time Deposits From Related Parties TimeDepositsFromRelatedParties	30310000	USD
CY2011Q4	tcbi	Time Deposits From Related Parties TimeDepositsFromRelatedParties	25285000	USD
CY2012Q2	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	719815000	USD
CY2011Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1029352000	USD
	us-gaap	Depreciation Depreciation	3550000	USD
CY2011	us-gaap	Depreciation Depreciation	3397000	USD
CY2010	us-gaap	Depreciation Depreciation	3201000	USD
CY2012Q2	us-gaap	Borrowed Funds BorrowedFunds	2171567000	USD
	tcbi	Borrowed Funds Maximum Monthend Outstanding Amount BorrowedFundsMaximumMonthendOutstandingAmount	2432945000	USD
CY2011	tcbi	Borrowed Funds Maximum Monthend Outstanding Amount BorrowedFundsMaximumMonthendOutstandingAmount	1986324000	USD
CY2010	tcbi	Borrowed Funds Maximum Monthend Outstanding Amount BorrowedFundsMaximumMonthendOutstandingAmount	653665000	USD
CY2010Q4	us-gaap	Borrowed Funds BorrowedFunds	411293000	USD
CY2011Q4	us-gaap	Borrowed Funds BorrowedFunds	1881522000	USD
CY2010Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	989912000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	20433000	USD
CY2012Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	300746000	USD
CY2012Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	706000000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	390720000	USD
CY2010Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	482460000	USD
CY2012Q2	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	35000000	USD
CY2012Q2	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	50000000	USD
	us-gaap	Line Of Credit Facility Expiration Date LineOfCreditFacilityExpirationDate	matures on September 30, 2013, but may be extended to March 31, 2014
CY2012Q2	tcbi	Borrowed Funds Maturing In Years Four And Five BorrowedFundsMaturingInYearsFourAndFive	46000	USD
CY2012Q2	tcbi	Borrowed Funds Maturities Repayments Of Principal After Year Five BorrowedFundsMaturitiesRepaymentsOfPrincipalAfterYearFive	224406000	USD
CY2012Q2	tcbi	Borrowed Funds Maturities Repayments Of Principal In Next Twelve Months BorrowedFundsMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1947115000	USD
CY2012Q2	tcbi	Borrowed Funds Maturing In Years Two And Three BorrowedFundsMaturingInYearsTwoAndThree	0	USD
	us-gaap	Debt Instrument Interest Rate Terms DebtInstrumentInterestRateTerms	fixed rate
CY2012Q2	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0619	pure
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	69092000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	47799000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	24329000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	840000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1183000	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1885000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	70977000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	48982000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	25169000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-5248000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-6927000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3131000	USD
	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	245000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-365000	USD
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	65961000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	40872000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	19081000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	475000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1428000	USD
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1885000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	67846000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42300000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19556000	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-20000	USD
CY2011	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-66000	USD
CY2010	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-70000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	20000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Other Comprehensive Loss DeferredTaxAssetsOtherComprehensiveLoss	245000	USD
CY2012Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-14798000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1452000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	27725000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	8991000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	5777000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Restructuring Charges DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges	0	USD
CY2012Q2	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-1672000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	51074000	USD
CY2012Q2	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	-9077000	USD
CY2012Q2	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	-1077000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	36276000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3168000	USD
CY2012Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	957000	USD
CY2012Q2	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	-1113000	USD
CY2012Q2	tcbi	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	-97000	USD
CY2012Q2	tcbi	Deferred Tax Assets Non Accrual Interest DeferredTaxAssetsNonAccrualInterest	2739000	USD
CY2012Q2	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	-1762000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	25787000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Restructuring Charges DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges	142000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	6432000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3776000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other Comprehensive Loss DeferredTaxAssetsOtherComprehensiveLoss	401000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	19000	USD
CY2011Q4	tcbi	Deferred Tax Assets Non Accrual Interest DeferredTaxAssetsNonAccrualInterest	5416000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	811000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6074000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	526000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	49384000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	-1054000	USD
CY2011Q4	tcbi	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	-723000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	-11174000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	-1235000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	-2542000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-293000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-17021000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	32363000	USD
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01	pure
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.01	pure
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-.01	pure
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.36	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.36	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.01	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.02	pure
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.35	pure
	us-gaap	Deferred Compensation Arrangement With Individual Employer Contribution DeferredCompensationArrangementWithIndividualEmployerContribution	2700000	USD
CY2011	us-gaap	Deferred Compensation Arrangement With Individual Employer Contribution DeferredCompensationArrangementWithIndividualEmployerContribution	819000	USD
CY2010	us-gaap	Deferred Compensation Arrangement With Individual Employer Contribution DeferredCompensationArrangementWithIndividualEmployerContribution	595000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0076	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0183	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0226	pure
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	5	number
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	5	years
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	5	years
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.404	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.414	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.418	pure
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3626000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4771000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4434000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodMinimum	four
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodMaximum	five
CY2012Q2	us-gaap	Capital Capital	1112924000	USD
CY2012Q2	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	734385000	USD
CY2012Q2	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	923677000	USD
CY2012Q2	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	367192000	USD
CY2012Q2	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	923677000	USD
CY2012Q2	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	392649000	USD
CY2011Q4	us-gaap	Capital Capital	774360000	USD
CY2011Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	586615000	USD
CY2011Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	701534000	USD
CY2011Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	293307000	USD
CY2011Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	701534000	USD
CY2011Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	319482000	USD
CY2012Q2	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1212	pure
CY2012Q2	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2012Q2	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1006	pure
CY2012Q2	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0400	pure
CY2012Q2	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0941	pure
CY2012Q2	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400	pure
CY2011Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1056	pure
CY2011Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2011Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.0957	pure
CY2011Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0400	pure
CY2011Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0878	pure
CY2011Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400	pure
CY2012Q2	tcbi	Federal Reserve Mandated Reserve Amount FederalReserveMandatedReserveAmount	33141000	USD
CY2011Q4	tcbi	Federal Reserve Mandated Reserve Amount FederalReserveMandatedReserveAmount	28219000	USD
	us-gaap	Profit Loss ProfitLoss	120672000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	75976000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	37187000	USD
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36627329	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37334743	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39046340	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	645771	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	682694	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	594707	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	123992	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	315640	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	473736	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	40165847	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38333077	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37346028	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	98000	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	978567	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	79500	shares
	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	8993000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	7982000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6916000	USD
CY2012Q2	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	10197000	USD
CY2012Q2	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	10101000	USD
CY2012Q2	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	9496000	USD
CY2012Q2	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	9099000	USD
CY2012Q2	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	9060000	USD
CY2012Q2	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	37332000	USD
CY2012Q2	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	85285000	USD
	us-gaap	Dividend Income Operating DividendIncomeOperating	83000	USD
	us-gaap	Other Income OtherIncome	38000	USD
	us-gaap	Revenues Revenues	1605000	USD
	us-gaap	Operating Expenses OperatingExpenses	8419000	USD
	tcbi	Income Loss From Continuing Operations Before Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments	-4379000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	124951000	USD
CY2011	us-gaap	Dividend Income Operating DividendIncomeOperating	77000	USD
CY2011	us-gaap	Other Income OtherIncome	72000	USD
CY2011	us-gaap	Revenues Revenues	149000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	5560000	USD
CY2011	tcbi	Income Loss From Continuing Operations Before Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments	-3524000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	79500000	USD
CY2010	us-gaap	Dividend Income Operating DividendIncomeOperating	110000	USD
CY2010	us-gaap	Other Income OtherIncome	128000	USD
CY2010	us-gaap	Revenues Revenues	238000	USD
CY2010	us-gaap	Operating Expenses OperatingExpenses	6067000	USD
CY2010	tcbi	Income Loss From Continuing Operations Before Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments	-3840000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	41027000	USD
CY2012Q2	tcbi	Loans Receivable Held For Sale Net From Disclontinued Operations LoansReceivableHeldForSaleNetFromDisclontinuedOperations	302000	USD
	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-26000	USD
	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	31000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-57000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	58000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	250000	USD
CY2011	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-192000	USD
CY2010	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	36000	USD
CY2010	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	242000	USD
CY2010	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-206000	USD
	us-gaap	Description Of Credit Risk Exposure DescriptionOfCreditRiskExposure	Our credit exposure on interest rate swaps and caps is limited to the net favorable value and interest payments of all swaps by each counterparty. In such cases collateral may be required from the counterparties involved if the net value of the swaps exceeds a nominal amount considered to be immaterial.
CY2012Q2	tcbi	Cash Pledged As Derivative Collateral CashPledgedAsDerivativeCollateral	17100000	USD
CY2012Q2	tcbi	Minority Interestbefore Sale Of Stock MinorityInterestbeforeSaleOfStock	869000	USD
	us-gaap	Sale Of Stock Percentage Of Ownership After Transaction SaleOfStockPercentageOfOwnershipAfterTransaction	0.97	pure
CY2012Q2	us-gaap	Minority Interest MinorityInterest	591000	USD
	tcbi	Gross Proceeds From Issuance Of Common Stock Maximum Amount Authorized GrossProceedsFromIssuanceOfCommonStockMaximumAmountAuthorized	12500000	USD
CY2012Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	107769000	USD
CY2012Q4	us-gaap	Interest Expense InterestExpense	6614000	USD
CY2012Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	101155000	USD
CY2012Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4500000	USD
CY2012Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	96655000	USD
CY2012Q4	us-gaap	Noninterest Income NoninterestIncome	12836000	USD
CY2012Q4	us-gaap	Noninterest Expense NoninterestExpense	60074000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	49417000	USD
CY2012Q4	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	17982000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	31435000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.78
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.78
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.76
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2012Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	40446000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41505000	shares
CY2012Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	102011000	USD
CY2012Q3	us-gaap	Interest Expense InterestExpense	5156000	USD
CY2012Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	96855000	USD
CY2012Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2012Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	93855000	USD
CY2012Q3	us-gaap	Noninterest Income NoninterestIncome	10552000	USD
CY2012Q3	us-gaap	Noninterest Expense NoninterestExpense	53521000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	50886000	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	18316000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	32570000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-34000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.82
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.80
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.80
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39618000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	40756000	shares
CY2012Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	95546000	USD
CY2012Q2	us-gaap	Interest Expense InterestExpense	4906000	USD
CY2012Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	90640000	USD
CY2012Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1000000	USD
CY2012Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	89640000	USD
CY2012Q2	us-gaap	Noninterest Income NoninterestIncome	10462000	USD
CY2012Q2	us-gaap	Noninterest Expense NoninterestExpense	53973000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	46129000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	16506000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	29623000	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.78
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.78
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.76
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38013000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39142000	shares
CY2012Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	93131000	USD
CY2012Q1	us-gaap	Interest Expense InterestExpense	4902000	USD
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2011Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37091000	shares
CY2012Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	88229000	USD
CY2012Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2012Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	85229000	USD
CY2012Q1	us-gaap	Noninterest Income NoninterestIncome	9190000	USD
CY2012Q1	us-gaap	Noninterest Expense NoninterestExpense	52276000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	42143000	USD
CY2012Q1	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	15062000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	27081000	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.72
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.70
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2012Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37795000	shares
CY2012Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38914000	shares
CY2011Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	70111000	USD
CY2011Q1	us-gaap	Interest Expense InterestExpense	5613000	USD
CY2011Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	64498000	USD
CY2011Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7500000	USD
CY2011Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	56998000	USD
CY2011Q1	us-gaap	Noninterest Income NoninterestIncome	7684000	USD
CY2011Q1	us-gaap	Noninterest Expense NoninterestExpense	46399000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	18283000	USD
CY2011Q1	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	6344000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	11939000	USD
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-60000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.32
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.31
CY2011Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38342000	shares
CY2011Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	75259000	USD
CY2011Q2	us-gaap	Interest Expense InterestExpense	4165000	USD
CY2011Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	71094000	USD
CY2011Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	8000000	USD
CY2011Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	63094000	USD
CY2011Q2	us-gaap	Noninterest Income NoninterestIncome	7951000	USD
CY2011Q2	us-gaap	Noninterest Expense NoninterestExpense	45263000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	25782000	USD
CY2011Q2	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	9074000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	16708000	USD
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-54000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.45
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.45
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.44
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.43
CY2011Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37281000	shares
CY2011Q4	us-gaap	Noninterest Income NoninterestIncome	8994000	USD
CY2011Q4	us-gaap	Noninterest Expense NoninterestExpense	50353000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	40788000	USD
CY2011Q4	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	15043000	USD
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2011Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37549000	shares
CY2011Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38609000	shares
CY2011Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38333000	shares
CY2011Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	83263000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	4065000	USD
CY2011Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	79198000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	25745000	USD
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-5000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.69
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.67
CY2011Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	USD
CY2011Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	72198000	USD
CY2011Q3	us-gaap	Noninterest Income NoninterestIncome	7603000	USD
CY2011Q3	us-gaap	Noninterest Expense NoninterestExpense	46186000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	33615000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	11905000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	21710000	USD
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-7000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.58
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.56
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37412000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38435000	shares
CY2011Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	92967000	USD
CY2011Q4	us-gaap	Interest Expense InterestExpense	4820000	USD
CY2011Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	88147000	USD
CY2011Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6000000	USD
CY2011Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	82147000	USD
CY2012Q4	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	31429000	USD
CY2012Q3	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	32536000	USD
CY2012Q2	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	29622000	USD
CY2012Q1	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	27085000	USD
CY2011Q1	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	11879000	USD
CY2011Q2	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	16654000	USD
CY2011Q3	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	21703000	USD
CY2011Q4	us-gaap	Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple	25740000	USD
	tcbi	Loss Contingency Jury Verdict Value LossContingencyJuryVerdictValue	65400000	USD

Files In Submission

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0001193125-13-068855-index-headers.html	Edgar Link	pending
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tcbi-20121231.xml	Edgar Link	completed
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tcbi-20121231_def.xml	Edgar Link	unprocessable
tcbi-20121231_lab.xml	Edgar Link	unprocessable
tcbi-20121231_pre.xml	Edgar Link	unprocessable

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$TCBI
Texas Capital Bancshares Inc Stock $tcbi

2012 Q2 Form 10-K Financial Statement

#000119312513068855 Filed on February 21, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TCBI Texas Capital Bancshares Inc Stock $tcbi

2012 Q2 Form 10-K Financial Statement

#000119312513068855 Filed on February 21, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TCBI
Texas Capital Bancshares Inc Stock $tcbi