Operations and Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2011
Organization Consolidation And Presentation Of Financial Statements Abstract
Operations and Summary of Significant Accounting Policies	(1) OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations Texas Capital Bancshares, Inc. ("the Company"), a Delaware bank holding company, was incorporated in November 1996 and commenced operations in March 1998. The consolidated financial statements of the Company include the accounts of Texas Capital Bancshares, Inc. and its wholly owned subsidiary, Texas Capital Bank, National Association (the "Bank"). The Bank currently provides commercial banking services to its customers primarily in Texas and concentrates on middle market commercial and high net worth customers. Basis of Presentation The accounting and reporting policies of Texas Capital Bancshares, Inc. conform to accounting principles generally accepted in the United States and to generally accepted practices within the banking industry. Our consolidated financial statements include the accounts of Texas Capital Bancshares, Inc. and its subsidiary, the Bank. Certain prior period balances have been reclassified to conform to the current period presentation. The consolidated interim financial statements have been prepared without audit. Certain information and footnote disclosures presented in accordance with accounting principles generally accepted in the United States have been condensed or omitted. In the opinion of management, the interim financial statements include all normal and recurring adjustments and the disclosures made are adequate to make interim financial information not misleading. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission ("SEC"). Accordingly, the financial statements do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2010, included in our Annual Report on Form 10-K filed with the SEC on February 23, 2011 (the "2010 Form 10-K"). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States 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 valuation allowance for other real estate owned ("OREO"), 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. Accumulated Other Comprehensive Income, Net Unrealized gains or losses on our available-for-sale securities (after applicable income tax expense or benefit) are included in accumulated other comprehensive income, net. Accumulated comprehensive income, net for the nine months ended September 30, 2011 and 2010 is reported in the accompanying consolidated statements of changes in stockholders' equity. Fair Values of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates. The fair value estimates of existing on- and off-balance sheet financial instruments do not include the value of anticipated future business or the value of assets and liabilities not considered financial instruments.

Operations and Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2011

Organization Consolidation And Presentation Of Financial Statements Abstract

Operations and Summary of Significant Accounting Policies

(1) OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations

Texas Capital Bancshares, Inc. ("the Company"), a Delaware bank holding company, was incorporated in November 1996 and commenced operations in March 1998. The consolidated financial statements of the Company include the accounts of Texas Capital Bancshares, Inc. and its wholly owned subsidiary, Texas Capital Bank, National Association (the "Bank"). The Bank currently provides commercial banking services to its customers primarily in Texas and concentrates on middle market commercial and high net worth customers.

Basis of Presentation

The accounting and reporting policies of Texas Capital Bancshares, Inc. conform to accounting principles generally accepted in the United States and to generally accepted practices within the banking industry. Our consolidated financial statements include the accounts of Texas Capital Bancshares, Inc. and its subsidiary, the Bank. Certain prior period balances have been reclassified to conform to the current period presentation.

The consolidated interim financial statements have been prepared without audit. Certain information and footnote disclosures presented in accordance with accounting principles generally accepted in the United States have been condensed or omitted. In the opinion of management, the interim financial statements include all normal and recurring adjustments and the disclosures made are adequate to make interim financial information not misleading. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission ("SEC"). Accordingly, the financial statements do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2010, included in our Annual Report on Form 10-K filed with the SEC on February 23, 2011 (the "2010 Form 10-K"). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States 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 valuation allowance for other real estate owned ("OREO"), 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.

Accumulated Other Comprehensive Income, Net

Unrealized gains or losses on our available-for-sale securities (after applicable income tax expense or benefit) are included in accumulated other comprehensive income, net. Accumulated comprehensive income, net for the nine months ended September 30, 2011 and 2010 is reported in the accompanying consolidated statements of changes in stockholders' equity.

Fair Values of Financial Instruments

Fair values of financial instruments are estimated using relevant market information and other assumptions. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates. The fair value estimates of existing on- and off-balance sheet financial instruments do not include the value of anticipated future business or the value of assets and liabilities not considered financial instruments.