Organization, Business Environment and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in conformity with the instructions of the Securities and Exchange Commission (SEC) to Form 10-Q and SEC Regulation S-X, Article 10, Rule 10-01 for interim financial statements. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America (GAAP) for complete financial statements. In our opinion, the accompanying unaudited consolidated financial statements contain all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation. The results of operations and other data for the three months ended March 31, 2016 are not necessarily indicative of the results that may be expected for any other interim period or for the year ending December 31, 2016. The unaudited consolidated financial statements presented herein should be read in conjunction with the audited consolidated financial statements and related notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2015.
Reclassifications	Reclassifications As a result of our retrospective adoption on January 1, 2016 of FASB Accounting Standards Update (ASU) 2015-03, Interest—Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs, and ASU 2015-15, Interest—Imputation of Interest: Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements—Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting, unamortized debt issuance costs that are not related to revolving line-of-credit arrangements have been reclassified from other assets to other secured borrowings and senior unsecured notes on the consolidated balance sheets, resulting in a reduction to the Company’s assets and liabilities of $23.5 million and $24.5 million at March 31, 2016 and December 31, 2015, respectively.
Use of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of financial statements in conformity with GAAP requires that management make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, the reported amounts of revenues and expenses during the reporting period and the related disclosures in the accompanying notes. Such estimates and assumptions include, but are not limited to, those that relate to fair value measurements, the provision for potential losses that may arise from litigation proceedings, and representation and warranty and other indemnification obligations. In developing estimates and assumptions, management uses all available information; however, actual results could materially differ from those estimates and assumptions.
Recently Issued Accounting Standards	Recently Issued Accounting Standards Leases (ASU 2016-02) In February 2016, the FASB issued ASU 2016-02 to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key qualitative and quantitative information about leasing arrangements. A lessee will be required to recognize assets and liabilities for leases with lease terms of more than 12 months, regardless of whether the lease is classified as a finance or operating lease. Additional disclosures will help investors and financial statement users better understand the amount, timing and uncertainty of cash flows arising from leases. ASU 2016-02 will be effective for us on January 1, 2019, with early application permitted. We are currently evaluating the effect of adopting this standard. Derivatives and Hedging: Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships (ASU 2016-05) In March 2016, the FASB issued ASU 2016-05 to clarify that a change in the counterparty to a derivative instrument that has been designated as a hedging instrument under FASB Accounting Standards Codification (ASC) Topic 815, Derivatives and Hedging, does not, in and of itself, require dedesignation of that hedging relationship provided that all other hedge accounting criteria continue to be met. ASU 2016-05 will be effective for us on January 1, 2017, with early adoption permitted, including adoption in an interim period. We do not anticipate that our adoption of this standard will have a material impact on our consolidated financial statements. Derivatives and Hedging: Contingent Put and Call Options in Debt Instruments (ASU 2016-06) In March 2016, the FASB issued ASU 2016-06 to clarify that in assessing whether embedded contingent put or call options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts, an entity is required to apply only the four-step decision sequence in FASB ASC 815-15-25-42 (as amended by this ASU). An entity does not have to separately assess whether the event that triggers its ability to exercise the contingent option is itself indexed only to interest rates or credit risk. ASU 2016-06 will be effective for us on January 1, 2017, with early adoption permitted, including adoption in an interim period. We are currently evaluating the effect of adopting this standard. Investments - Equity Method and Joint Ventures: Simplifying the Transition to the Equity Method of Accounting (ASU 2016-07) In March 2016, the FASB issued ASU 2016-07 to simplify the transition to the equity method of accounting as part of its simplification initiative to reduce cost and complexity in accounting standards while maintaining or improving the usefulness of the information provided to the users of financial statements. This standard requires that an equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment qualifies for equity method accounting, rather than adjusting the investment retroactively. This standard also requires that an entity that has an available-for-sale equity security that qualifies for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment qualifies for use of the equity method. ASU 2016-07 will be effective for us on January 1, 2017, with early application permitted. We are currently evaluating the effect of adopting this standard. Revenue from Contracts with Customers: Principal versus Agent Considerations (ASU 2016-08) In March 2016, the FASB issued ASU 2016-08 to clarify the implementation guidance included in FASB ASC Topic 606, Revenue from Contracts with Customers, related to principal versus agent considerations and add illustrative examples to assist in the application of the guidance. When another party is involved in providing goods or services to a customer, an entity is required to determine whether the nature of its promise is that of a principal -- providing the specified good or service itself, or that of an agent -- arranging for that good or service to be provided by the other party. An entity is a principal if it controls the specified good or service before that good or service is transferred to a customer. ASU 2016-08 will be effective for us on January 1, 2018, with early application permitted. We are currently evaluating the effect of adopting this standard. Compensation - Stock Compensation: Improvements to Employee Shared-Based Payment Accounting (ASU 2016-09) In March 2016, the FASB issued ASU 2016-09 to improve the accounting for employee share-based payments. This standard simplifies several aspects of the accounting for share-based payment award transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows, as part of FASB’s simplification initiative to reduce cost and complexity in accounting standards while maintaining or improving the usefulness of the information provided to the users of financial statements. ASU 2016-09 will be effective for us on January 1, 2017, with early adoption permitted. We are currently evaluating the effect of adopting this standard.