Description Of Business, Ownership Formation, Basis Of Presentation, And Principles Of Consolidation (Policies)	6 Months Ended
Jun. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation, Variable Interest Entity, Policy	We have determined that DTAC is a variable interest entity (“VIE”) and DTAG is the primary beneficiary of DTAC. Therefore, the accounts of DTAG and DTAC are consolidated and intercompany transactions between DTAG and DTAC are eliminated in consolidation. We determined DTAG is the primary beneficiary of DTAC because DTAG has both (1) the power to direct the activities of DTAC that most significantly impact DTAC's economic performance and (2) a potentially significant variable interest that carries with it the obligation to absorb the losses or the right to receive benefits of DTAC. DTAG has the power to direct the activities of DTAC because it originates and sells 100% of the loans DTAC is required to purchase, sets underwriting standards and origination terms, sets servicing and collection policies administered by DTAC, as well as the fact that DTAC was created and designed by DTAG to obtain third party financing for DTAG's originations. DTAG also has potentially significant variable interests in the form of debt capital provided to DTAC through various debt issuances, guarantees of DTAC's debt, as well as operational liabilities owed to DTAG, all of which carry the obligation to absorb losses or receive benefits of DTAC. Creditors of DTAC generally do not have recourse to the general credit of DTAG, except that the special purpose entity ("SPE") related to our term residual facility entered into a demand note with DTAC. The demand note is guaranteed by DTAG.
Basis of Accounting, Policy	These condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles ("GAAP") for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, such interim condensed consolidated financial statements reflect all normal recurring adjustments considered necessary to present fairly the financial position, results of operations, and cash flows for the interim periods presented. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes as of and for the year-ended December 31, 2012, which are included in our Annual Report on Form 10-K, filed with the Securities and Exchange Commission (“SEC”) on March 28, 2013.
Use of Estimates, Policy	The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities. Certain accounting estimates involve significant judgments, assumptions, and estimates by management that have a material impact on the carrying value of certain assets and liabilities, disclosures of contingent assets and liabilities, and the reported amounts of income and expenses during the reporting period which management considers to be critical accounting estimates. The judgments, assumptions, and estimates used by management are based on historical experience, managements’ experience, and other factors, which are believed to be reasonable under the circumstances. Because of the nature of the judgments and assumptions made by management, actual results could differ materially from these judgments and estimates, which could have a material impact on the carrying values of our assets and liabilities and our results of operations. Significant items subject to estimates and assumptions include the allowance for credit losses, inventory valuation, fair value measurements, certain legal reserves, our reserve for sales returns and allowances, our recovery receivables, and our warranty accrual. Actual results could differ from these estimates.
Finance, Loans and Leases Receivable, Policy	Our finance receivables are defined as one segment and class of loan, which is the sub-prime consumer auto loan. Therefore, the disaggregation of information into portfolio segments and classes for assets with different risk characteristics is limited, and the level of risks inherent in our financing receivables are managed as one homogeneous pool and further segmented with our proprietary credit scoring system as described below in "—Credit Quality Indicators." We have chosen our proprietary credit scoring system to segregate risk characteristics of the portfolio since it has a direct impact in managing our portfolio risk and monitoring loan performance. Finance receivables pledged as collateral associated with liabilities in our warehouse facilities, asset backed securitizations, and bank term financings, are provided in Note 5—Debt Obligations. We do not place loans on nonaccrual status, nor do we classify loans as impaired, since accounts are charged-off when the loan becomes 91 -121 days contractually past due at month end under our charge-off policy. We do not have loans that meet the definition of troubled debt restructurings.
Finance, Loan and Lease Receivables, Held-for-investment, Allowance and Nonperforming Loans, Nonperforming Loans Policy	An account is considered delinquent if a substantial portion of a scheduled payment has not been received by the date such payment was contractually due. Delinquencies may vary from period to period based upon the average age or seasoning of the portfolio, seasonality within the calendar year and economic factors. Delinquencies are presented on a Sunday-to-Sunday basis, which reflects delinquencies as of the nearest Sunday to period end. Sunday is used to eliminate any impact of the day of the week on delinquencies since delinquencies tend to be higher mid-week.
Limited Warranty, Policy	Our limited warranty accrual/service contract liability is recorded as a component of Accrued Expenses and Other Liabilities on the accompanying condensed consolidated balance sheets for each period presented.
Income Tax, Policy	The condensed consolidated financial statements consist of financial and operating data of DTAG and DTAC, which are both S corporations. Since DTAC and DTAG are flow-through entities for federal income tax purposes, there is no federal income tax expense related to the income of DTAC and DTAG, other than for two of DTAG’s C corporation subsidiaries, one of which is wholly owned with the other majority owned. The taxable income flows through to our shareholders who are responsible for paying the associated taxes. The Company recognizes deferred tax assets and liabilities for temporary differences between the financial reporting basis and the tax basis of its assets and liabilities recorded in jurisdictions that either do not recognize the Company's S corporation status and/or assess a tax on the Company's operations at the entity level. The Company's policy is to record a valuation allowance against its deferred tax assets to reduce the net carrying value to an amount that management believes is more likely than not to be realized. As of June 30, 2013, our deferred tax assets and liabilities are immaterial to the financial statements. Although most states follow the federal recognition of S corporation status, some states do impose an entity level tax on that income; therefore, the tax expense is adjusted accordingly. We did not have an income tax liability as of June 30, 2013. Our income tax liability was $0.2 million as of December 31, 2012. At June 30, 2013 and December 31, 2012, the Company had no unrecognized tax benefits. The Company recognizes accrued interest and penalties, if applicable, related to unrecognized tax benefits in income tax expense. The Company had not accrued any amounts related to the payment of interest and penalties as of June 30, 2013 and December 31, 2012.
Legal Matters, Policy	In accordance with ASC 450, Contingencies, we establish an accrual for a liability when it is both probable that the liability has been incurred and the amount of the loss can be reasonably estimated. These accruals are reviewed monthly and adjusted to reflect the impact of negotiations, settlements and payments, rulings, advice of legal counsel, and other information and events pertaining to a particular case. Legal expenses related to defense, negotiations, settlements, rulings, and advice of outside legal counsel are expensed as incurred.
Valuation Methodologies, Policy	Finance receivables The fair value of finance receivables was estimated by discounting future cash flows expected to be collected using current rates at which similar loans would be made to borrowers with similar credit ratings and the same remaining maturities. This discounted cash flow is estimated utilizing an internal valuation model, which uses a combination of market inputs (i.e. discount rates for similar and like transactions) and our own assumptions regarding credit losses, recoveries, and prepayment rates in our portfolio. We estimate the cash flow of the portfolio and the cash flow of our retained interests in securitization, warehouse and bank term financing transactions in measuring total cash flow. These cash flows are developed on a leveraged basis since our finance receivable portfolio is financed by these debt instruments and are not separable transactions. Dealer Finance Receivables - GO The fair value of Dealer Finance Receivables was estimated by discounting future cash flows expected to be collected utilizing an internal loss adjusted cash flow model. The cash flow model uses internally generated assumptions regarding credit losses, recoveries, and prepayment rates in our portfolio, and a discount rate consistent with that of similar and like transactions.
Consolidation, Policy	In accordance with the indenture governing the 12.625% Senior Secured Notes due 2017 (see Note 5—Debt Obligations), certain wholly-owned U.S. subsidiaries of the Company have fully and unconditionally guaranteed the Senior Secured Notes on a joint and several basis. Pursuant to Regulation S-X, Rule 3-10(f), we are required to present condensed consolidating financial information for subsidiaries that have guaranteed the debt of a registrant issued in a public offering, where the guarantee is full and unconditional, joint and several, and where the voting interest of the subsidiary is 100% owned by the registrant.

Description Of Business, Ownership Formation, Basis Of Presentation, And Principles Of Consolidation (Policies)

6 Months Ended

Jun. 30, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Consolidation, Variable Interest Entity, Policy

We have determined that DTAC is a variable interest entity (“VIE”) and DTAG is the primary beneficiary of DTAC. Therefore, the accounts of DTAG and DTAC are consolidated and intercompany transactions between DTAG and DTAC are eliminated in consolidation. We determined DTAG is the primary beneficiary of DTAC because DTAG has both (1) the power to direct the activities of DTAC that most significantly impact DTAC's economic performance and (2) a potentially significant variable interest that carries with it the obligation to absorb the losses or the right to receive benefits of DTAC. DTAG has the power to direct the activities of DTAC because it originates and sells 100% of the loans DTAC is required to purchase, sets underwriting standards and origination terms, sets servicing and collection policies administered by DTAC, as well as the fact that DTAC was created and designed by DTAG to obtain third party financing for DTAG's originations. DTAG also has potentially significant variable interests in the form of debt capital provided to DTAC through various debt issuances, guarantees of DTAC's debt, as well as operational liabilities owed to DTAG, all of which carry the obligation to absorb losses or receive benefits of DTAC. Creditors of DTAC generally do not have recourse to the general credit of DTAG, except that the special purpose entity ("SPE") related to our term residual facility entered into a demand note with DTAC. The demand note is guaranteed by DTAG.

Basis of Accounting, Policy

These condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles ("GAAP") for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, such interim condensed consolidated financial statements reflect all normal recurring adjustments considered necessary to present fairly the financial position, results of operations, and cash flows for the interim periods presented. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes as of and for the year-ended December 31, 2012, which are included in our Annual Report on Form 10-K, filed with the Securities and Exchange Commission (“SEC”) on March 28, 2013.

Use of Estimates, Policy

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities. Certain accounting estimates involve significant judgments, assumptions, and estimates by management that have a material impact on the carrying value of certain assets and liabilities, disclosures of contingent assets and liabilities, and the reported amounts of income and expenses during the reporting period which management considers to be critical accounting estimates. The judgments, assumptions, and estimates used by management are based on historical experience, managements’ experience, and other factors, which are believed to be reasonable under the circumstances. Because of the nature of the judgments and assumptions made by management, actual results could differ materially from these judgments and estimates, which could have a material impact on the carrying values of our assets and liabilities and our results of operations.

Significant items subject to estimates and assumptions include the allowance for credit losses, inventory valuation, fair value measurements, certain legal reserves, our reserve for sales returns and allowances, our recovery receivables, and our warranty accrual. Actual results could differ from these estimates.

Finance, Loans and Leases Receivable, Policy

Our finance receivables are defined as one segment and class of loan, which is the sub-prime consumer auto loan. Therefore, the disaggregation of information into portfolio segments and classes for assets with different risk characteristics is limited, and the level of risks inherent in our financing receivables are managed as one homogeneous pool and further segmented with our proprietary credit scoring system as described below in "—Credit Quality Indicators." We have chosen our proprietary credit scoring system to segregate risk characteristics of the portfolio since it has a direct impact in managing our portfolio risk and monitoring loan performance.

Finance receivables pledged as collateral associated with liabilities in our warehouse facilities, asset backed securitizations, and bank term financings, are provided in Note 5—Debt Obligations. We do not place loans on nonaccrual status, nor do we classify loans as impaired, since accounts are charged-off when the loan becomes 91 -121 days contractually past due at month end under our charge-off policy. We do not have loans that meet the definition of troubled debt restructurings.

Finance, Loan and Lease Receivables, Held-for-investment, Allowance and Nonperforming Loans, Nonperforming Loans Policy

An account is considered delinquent if a substantial portion of a scheduled payment has not been received by the date such payment was contractually due. Delinquencies may vary from period to period based upon the average age or seasoning of the portfolio, seasonality within the calendar year and economic factors. Delinquencies are presented on a Sunday-to-Sunday basis, which reflects delinquencies as of the nearest Sunday to period end. Sunday is used to eliminate any impact of the day of the week on delinquencies since delinquencies tend to be higher mid-week.

Limited Warranty, Policy

Our limited warranty accrual/service contract liability is recorded as a component of Accrued Expenses and Other Liabilities on the accompanying condensed consolidated balance sheets for each period presented.

Income Tax, Policy

The condensed consolidated financial statements consist of financial and operating data of DTAG and DTAC, which are both S corporations. Since DTAC and DTAG are flow-through entities for federal income tax purposes, there is no federal income tax expense related to the income of DTAC and DTAG, other than for two of DTAG’s C corporation subsidiaries, one of which is wholly owned with the other majority owned. The taxable income flows through to our shareholders who are responsible for paying the associated taxes.

The Company recognizes deferred tax assets and liabilities for temporary differences between the financial reporting basis and the tax basis of its assets and liabilities recorded in jurisdictions that either do not recognize the Company's S corporation status and/or assess a tax on the Company's operations at the entity level. The Company's policy is to record a valuation allowance against its deferred tax assets to reduce the net carrying value to an amount that management believes is more likely than not to be realized. As of June 30, 2013, our deferred tax assets and liabilities are immaterial to the financial statements.

Although most states follow the federal recognition of S corporation status, some states do impose an entity level tax on that income; therefore, the tax expense is adjusted accordingly. We did not have an income tax liability as of June 30, 2013. Our income tax liability was $0.2 million as of December 31, 2012.

At June 30, 2013 and December 31, 2012, the Company had no unrecognized tax benefits. The Company recognizes accrued interest and penalties, if applicable, related to unrecognized tax benefits in income tax expense. The Company had not accrued any amounts related to the payment of interest and penalties as of June 30, 2013 and December 31, 2012.

Legal Matters, Policy

In accordance with ASC 450, Contingencies, we establish an accrual for a liability when it is both probable that the liability has been incurred and the amount of the loss can be reasonably estimated. These accruals are reviewed monthly and adjusted to reflect the impact of negotiations, settlements and payments, rulings, advice of legal counsel, and other information and events pertaining to a particular case. Legal expenses related to defense, negotiations, settlements, rulings, and advice of outside legal counsel are expensed as incurred.

Valuation Methodologies, Policy

Finance receivables

The fair value of finance receivables was estimated by discounting future cash flows expected to be collected using current rates at which similar loans would be made to borrowers with similar credit ratings and the same remaining maturities. This discounted cash flow is estimated utilizing an internal valuation model, which uses a combination of market inputs (i.e. discount rates for similar and like transactions) and our own assumptions regarding credit losses, recoveries, and prepayment rates in our portfolio. We estimate the cash flow of the portfolio and the cash flow of our retained interests in securitization, warehouse and bank term financing transactions in measuring total cash flow. These cash flows are developed on a leveraged basis since our finance receivable portfolio is financed by these debt instruments and are not separable transactions.

Dealer Finance Receivables - GO

The fair value of Dealer Finance Receivables was estimated by discounting future cash flows expected to be collected utilizing an internal loss adjusted cash flow model. The cash flow model uses internally generated assumptions regarding credit losses, recoveries, and prepayment rates in our portfolio, and a discount rate consistent with that of similar and like transactions.

Consolidation, Policy

In accordance with the indenture governing the 12.625% Senior Secured Notes due 2017 (see Note 5—Debt Obligations), certain wholly-owned U.S. subsidiaries of the Company have fully and unconditionally guaranteed the Senior Secured Notes on a joint and several basis. Pursuant to Regulation S-X, Rule 3-10(f), we are required to present condensed consolidating financial information for subsidiaries that have guaranteed the debt of a registrant issued in a public offering, where the guarantee is full and unconditional, joint and several, and where the voting interest of the subsidiary is 100% owned by the registrant.