Santander Consumer USA (SC) 10-Q 5 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Apr. 30, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	Santander Consumer USA Holdings Inc.
Entity Central Index Key	1,580,608
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding (in shares)		359,421,742

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents - $92,712 and $98,536 held at affiliates, respectively	$ 420,826	$ 160,180
Finance receivables held for sale, net	1,856,019	2,123,415
Finance receivables held for investment, net (includes $30,652 and $24,495 of loans recorded at fair value, respectively)	23,444,625	23,481,001
Restricted cash - $7,813 and $11,629 held at affiliates, respectively	2,946,736	2,757,299
Accrued interest receivable	306,742	373,274
Leased vehicles, net	8,927,536	8,564,628
Furniture and equipment, net of accumulated depreciation of $51,299 and $47,365, respectively	67,921	67,509
Federal, state and other income taxes receivable	93,386	87,352
Related party taxes receivable	467	1,087
Goodwill	74,056	74,056
Intangible assets, net of amortization of $34,602 and $33,652, respectively	32,275	32,623
Due from affiliates	29,480	31,270
Other assets	861,871	785,410
Total assets	39,061,940	38,539,104
Liabilities:
Notes payable — credit facilities	4,958,638	6,739,817
Notes payable — secured structured financings	23,666,666	21,608,889
Notes payable — related party	2,850,000	2,975,000
Accrued interest payable	37,759	33,346
Accounts payable and accrued expenses	414,851	379,021
Deferred tax liabilities, net	1,342,055	1,278,064
Due to affiliates	90,341	50,620
Other liabilities	282,632	235,728
Total liabilities	33,642,942	33,300,485
Commitments and contingencies (Notes 5 and 10)
Equity:
Common stock, $0.01 par value - 1,100,000,000 shares authorized; 359,489,493 and 359,002,145 shares issued and 359,394,898 and 358,907,550 shares outstanding, respectively	3,594	3,589
Additional paid-in capital	1,662,200	1,657,611
Accumulated other comprehensive income, net	35,504	28,259
Retained earnings	3,717,700	3,549,160
Total stockholders’ equity	5,418,998	5,238,619
Total liabilities and equity	39,061,940	38,539,104
Assets
Restricted cash	2,437,776	2,087,177
Finance receivables held for sale, net	859,360	1,012,277
Finance receivables held for investment, net	22,957,913	22,919,312
Leased vehicles, net	8,927,536	8,564,628
Various other assets	705,569	686,253
Total assets	35,888,154	35,269,647
Liabilities
Notes payable	30,842,051	31,659,203
Various other liabilities	111,075	91,234
Total liabilities	$ 30,953,126	$ 31,750,437

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Cash and cash equivalents held for affiliates	$ 92,712	$ 98,536
Loans recorded at fair value	30,652	24,495
Restricted cash held for affiliates	7,813	11,629
Accumulated depreciation	51,299	47,365
Accumulated amortization	$ 34,602	$ 33,652
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	1,100,000,000	1,100,000,000
Common stock, shares issued	359,489,493	359,002,145
Common stock, shares outstanding	359,394,898	358,907,550

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Interest on finance receivables and loans	$ 1,209,186	$ 1,286,195
Leased vehicle income	418,233	329,792
Other finance and interest income	3,825	3,912
Total finance and other interest income	1,631,244	1,619,899
Interest expense — Including $37,724 and $31,686 to affiliates, respectively	227,089	184,735
Leased vehicle expense	290,171	221,360
Net finance and other interest income	1,113,984	1,213,804
Provision for credit losses	635,013	660,170
Net finance and other interest income after provision for credit losses	478,971	553,634
Profit sharing	7,945	11,394
Net finance and other interest income after provision for credit losses and profit sharing	471,026	542,240
Investment losses, net — Including $2,719 and zero from affiliates, respectively	(76,399)	(69,056)
Servicing fee income — Including $3,263 and $4,076 from affiliates, respectively	31,684	44,494
Fees, commissions, and other — Including $225 and $225 from affiliates, respectively	100,195	102,120
Total other income	55,480	77,558
Compensation expense	136,262	119,842
Repossession expense	71,299	73,545
Other operating costs — Including $21,644 and $4,462 to affiliates, respectively	97,517	97,469
Total operating expenses	305,078	290,856
Income before income taxes	221,428	328,942
Income tax expense	78,001	120,643
Net income	143,427	208,299
Other comprehensive income (loss):
Change in unrealized gains (losses) on cash flow hedges, net of tax of $4,327 and $22,733, respectively	7,245	(38,190)
Comprehensive income	$ 150,672	$ 170,109
Net income per common share (basic) (in usd per share)	$ 0.40	$ 0.58
Net income per common share (diluted) (in usd per share)	$ 0.40	$ 0.58
Weighted average common shares (basic) (in shares)	359,105,050	357,974,890
Weighted average common shares (diluted) (in shares)	360,616,032	358,840,322

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Interest expense to affiliates	$ 37,724	$ 31,686
Investment gains (losses), net from affiliates	2,719	0
Servicing fee income from affiliates	3,263	4,076
Fees, commissions and other from affiliates	225	225
Other operating costs to affiliates	21,644	4,462
Change in unrealized gains (losses) on cash flow hedges, tax	$ 4,327	$ 22,733

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2015		357,946,000
Beginning balance at Dec. 31, 2015	$ 4,432,549	$ 3,579	$ 1,644,151	$ 2,125	$ 2,782,694
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued in connection with employee incentive compensation plans (in shares)		93,000
Stock issued in connection with employee incentive compensation plans	705	$ 1	704
Stock-based compensation expense	1,768		1,768
Tax sharing with affiliate	(392)		(392)
Net income	208,299				208,299
Other comprehensive income (loss), net of taxes	(38,190)			(38,190)
Ending balance (in shares) at Mar. 31, 2016		358,039,000
Ending balance at Mar. 31, 2016	4,604,739	$ 3,580	1,646,231	(36,065)	2,990,993
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative-effect adjustment upon adoption of ASU 2016-09 (Note 1)	$ 26,552		1,439		25,113
Beginning balance (in shares) at Dec. 31, 2016	358,907,550	358,908,000
Beginning balance at Dec. 31, 2016	$ 5,238,619	$ 3,589	1,657,611	28,259	3,549,160
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued in connection with employee incentive compensation plans (in shares)		487,000
Stock issued in connection with employee incentive compensation plans	1,090	$ 5	1,085
Stock-based compensation expense	2,067		2,067
Tax sharing with affiliate	(2)		(2)
Net income	143,427				143,427
Other comprehensive income (loss), net of taxes	$ 7,245			7,245
Ending balance (in shares) at Mar. 31, 2017	359,394,898	359,395,000
Ending balance at Mar. 31, 2017	$ 5,418,998	$ 3,594	$ 1,662,200	$ 35,504	$ 3,717,700

CONDENSED CONSOLIDATED STATEME7

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 143,427	$ 208,299
Adjustments to reconcile net income to net cash provided by operating activities
Derivative mark to market	(760)	6,633
Provision for credit losses	635,013	660,170
Depreciation and amortization	317,154	245,610
Accretion of discount	(69,945)	(90,806)
Originations and purchases of receivables held for sale	(818,817)	(1,277,487)
Proceeds from sales of and collections on receivables held for sale	973,118	922,071
Change in revolving personal loans	(5,064)	(129,330)
Investment losses, net	76,399	69,056
Stock-based compensation	2,067	1,768
Deferred tax expense	86,218	112,054
Changes in assets and liabilities:
Accrued interest receivable	49,650	11,272
Accounts receivable	(8,420)	3,157
Federal income tax and other taxes	(5,415)	7,515
Other assets	(10,435)	(57,262)
Accrued interest payable	1,086	3,102
Other liabilities	53,708	(22,936)
Due to/from affiliates	45,026	(15,748)
Net cash provided by operating activities	1,464,010	657,138
Cash flows from investing activities:
Originations of and disbursements on finance receivables held for investment	(2,985,822)	(3,836,292)
Purchases of portfolios of finance receivables held for investment	(152,208)	(95,596)
Collections on finance receivables held for investment	2,585,103	2,598,238
Proceeds from sale of loans held for investment	0	823,877
Leased vehicles purchased	(1,608,151)	(1,622,199)
Manufacturer incentives received	330,017	329,616
Proceeds from sale of leased vehicles	625,628	292,369
Change in revolving personal loans	49,236	166,890
Purchases of furniture and equipment	(7,551)	(14,500)
Sales of furniture and equipment	409	1,010
Change in restricted cash	(200,582)	(404,457)
Other investing activities	(1,931)	(2,532)
Net cash used in investing activities	(1,365,852)	(1,763,576)
Cash flows from financing activities:
Proceeds from notes payable related to secured structured financings — net of debt issuance costs	5,692,771	2,702,004
Payments on notes payable related to secured structured financings	(3,638,774)	(3,175,675)
Proceeds from unsecured notes payable	4,315,000	2,361,144
Payments on unsecured notes payable	(3,887,283)	(2,050,853)
Proceeds from notes payable	4,772,034	6,810,899
Payments on notes payable	(7,094,803)	(5,518,740)
Proceeds from stock option exercises, gross	3,543	813
Net cash provided by financing activities	162,488	1,129,592
Net increase in cash and cash equivalents	260,646	23,154
Cash — Beginning of period	160,180	18,893
Cash — End of period	420,826	42,047
Noncash investing and financing transactions:
Transfer of secured notes payable to unsecured notes payable	$ 120,748	$ 138,993

Description of Business, Basis

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices	Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices Santander Consumer USA Holdings Inc., a Delaware corporation (together with its subsidiaries, SC or the Company), is the holding company for Santander Consumer USA Inc., an Illinois corporation, and its subsidiaries, a specialized consumer finance company focused on vehicle finance and third-party servicing. The Company’s primary business is the indirect origination and securitization of retail installment contracts principally through manufacturer-franchised dealers in connection with their sale of new and used vehicles to retail consumers. In conjunction with a ten -year private label financing agreement (the Chrysler Agreement) with Fiat Chrysler Automobiles US LLC (FCA) that became effective May 1, 2013, the Company offers a full spectrum of auto financing products and services to FCA customers and dealers under the Chrysler Capital brand. These products and services include consumer retail installment contracts and leases, as well as dealer loans for inventory, construction, real estate, working capital and revolving lines of credit. The Company also originates vehicle loans through a web-based direct lending program, purchases vehicle retail installment contracts from other lenders, and services automobile and recreational and marine vehicle portfolios for other lenders. Additionally, the Company has several relationships through which it provides personal loans, private-label credit cards and other consumer finance products. As of March 31, 2017 , the Company was owned approximately 58.7% by Santander Holdings USA, Inc. (SHUSA), a subsidiary of Banco Santander, S.A. (Santander), approximately 31.5% by public shareholders, approximately 9.7% by DDFS LLC, an entity affiliated with Thomas G. Dundon, the Company’s former Chairman and CEO, and approximately 0.1% by other holders, primarily members of senior management. Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of the Company and its subsidiaries, including certain Trusts, which are considered variable interest entities (VIEs). The Company also consolidates other VIEs for which it was deemed to be the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation. The accompanying condensed consolidated financial statements as of March 31, 2017 and December 31, 2016 , and for the three months ended March 31, 2017 and 2016 , have been prepared in accordance with U.S. GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, these financial statements contain all adjustments, consisting of normal recurring adjustments, necessary for the fair statement of the financial position, results of operations and cash flows for the periods indicated. Results of operations for the periods presented herein are not necessarily indicative of results of operations for the entire year. These financial statements should be read in conjunction with the 2016 Annual Report on Form 10-K. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and the disclosures of contingent assets and liabilities, as of the date of the financial statements and the amount of revenue and expenses during the reporting periods. Actual results could differ from those estimates and those differences may be material. These estimates include the determination of credit loss allowance, discount accretion, impairment, fair value, expected end-of-term lease residual values, values of repossessed assets, and income taxes. These estimates, although based on actual historical trends and modeling, may potentially show significant variances over time. Business Segment Information The Company has one reportable segment: Consumer Finance, which includes the Company’s vehicle financial products and services, including retail installment contracts, vehicle leases, and dealer loans, as well as financial products and services related to motorcycles, recreational vehicles, and marine vehicles. It also includes the Company’s personal loan and point-of-sale financing operations. Accounting Policies There have been no material changes in the Company's accounting policies from those disclosed in Part II, Item 8 - Financial Statements and Supplementary Data in the 2016 Annual Report on Form 10-K. Recently Adopted Accounting Standards Since January 1, 2017, the Company adopted the following Financial Accounting Standards Board ("FASB") Accounting Standards Updates ("ASUs"): • The Company adopted ASU 2016-09, Compensation - Stock Compensation (Topic 718) . This new guidance simplifies certain aspects related to income taxes, the Statement of Cash Flows (SCF), and forfeitures when accounting for share-based payment transactions. ASU 2016-09 eliminates the requirement to recognize excess tax benefits in APIC pools, and instead requires companies to record all excess tax benefits and deficiencies at settlement, vesting or expiration in the income statement as provision for income taxes. At adoption of ASU 2016-09 on January 1, 2017, the cumulative-effect for previously unrecognized excess tax benefits totaled $26,552 net of tax, and was recognized, as an increased, through an adjustment in beginning retained earnings. The Company recorded excess tax benefits, net of tax of $47 in the provision for income taxes rather than as an increase to additional paid-in capital for the three months ended March 31, 2017, on a prospective basis. Therefore, the prior period presented has not been adjusted. All excess tax benefits along with other income tax cash flows will now be classified as an operating activity rather than financing activities in the SCF on a prospective basis. In addition, the Company changed its accounting policy on forfeitures from previously recognizing forfeitures based on estimating the number of awards expected to be forfeited to electing to recognize forfeiture of awards as they occur to simplify the accounting for forfeitures. This resulted in a cumulative adjustment, as a decrease to, beginning retained earnings of $1,439 . • The Company also adopted ASU 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships . The new guidance clarifies that a change in the counterparties to a derivative contract, i.e., a novation, in and of itself, does not require the de-designation of a hedging relationship. An entity will, however, still need to evaluate whether it is probable that the counterparty will perform under the contract as part of its ongoing effectiveness assessment for hedge accounting. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. • The Company also adopted ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments. This new guidance clarifies that an exercise contingency does not need to be evaluated to determine whether it relates to interest rates and credit risk in an embedded derivative analysis of hybrid financial instruments. In other words, a contingent put or call option embedded in a debt instrument would be evaluated for possible separate accounting as a derivative instrument without regard to the nature of the exercise contingency. However, as required under existing guidance, companies will still need to evaluate other relevant embedded derivative guidance, such as whether the payoff from the contingent put or call option is adjusted based on changes in an index other than interest rates or credit risk, and whether the debt involves a substantial premium or discount. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. • The Company also adopted ASU 2016-07, Investments-Equity Method and Joint Ventures (Topic 323) . The new guidance eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment. Instead, the equity method of accounting should be applied prospectively from the date significant influence is obtained. Investors should add the cost of acquiring the additional interest in the investee (if any) to the current basis of their previously held interest. The new standard also provides specific guidance for available-for-sale securities that become eligible for the equity method of accounting. In those cases, any unrealized gain or loss recorded within accumulated other comprehensive income should be recognized in earnings at the date the investment initially qualifies for the use of the equity method of accounting. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. • The Company also adopted ASU 2016-17, Consolidation (Topic 810), Interest Held Through Related Parties That Are Under Common Control, which amends the guidance in U.S. GAAP on related parties that are under common control. Specifically, the new ASU requires that a single decision maker consider indirect interests held by related parties under common control on a proportionate basis in a manner consistent with its evaluation of indirect interests held through other related parties. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. Recently Issued Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) , superseding the revenue recognition requirements in ASC 605. This ASU requires an entity to recognize revenue for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendment includes a five-step process to assist an entity in achieving the main principle(s) of revenue recognition under ASC 605. In August 2015, the FASB issued ASU 2015-14, which formalized the deferral of the effective date of the amendment for a period of one year from the original effective date. Following the issuance of ASU 2015-14, the amendment will be effective for the Company for the first annual period beginning after December 15, 2017. In March 2016, the FASB also issued ASU 2016-08, an amendment to the guidance in ASU 2014-09, which revises the structure of the indicators to provide indicators of when the entity is the principal or agent in a revenue transaction, and eliminated two of the indicators (“the entity’s consideration is in the form of a commission” and “the entity is not exposed to credit risk”) in making that determination. This amendment also clarifies that each indicator may be more or less relevant to the assessment depending on the terms and conditions of the contract. In April 2016, the FASB issued ASU 2016-10, which clarifies the implementation guidance on identifying promised goods or services and on determining whether an entity’s promise to grant a license with either a right to use the entity’s intellectual property (which is satisfied at a point in time) or a right to access the entity’s intellectual property (which is satisfied over time). In May 2016, the FASB issued ASU 2016-12, an amendment to ASU 2014-09, which provided practical expedients related to disclosures of remaining performance obligations, as well as other amendments to guidance on transition, collectability, non-cash consideration and the presentation of sales and other similar taxes. In December 2016, the FASB issued ASU 2016-20, a separate update for technical corrections and improvements to Topic 606 and other Topics amended by Update 2014-09 to increase stakeholders’ awareness of the proposals and to expedite improvements to Update 2014-09. The amendments, collectively, should be applied retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. Because ASU 2014-09 does not apply to revenue associated with leases and financial instruments (including loans and securities), the Company does not expect the new guidance to have a material impact on the elements of its Consolidated Statements of Operations most closely associated with leases and financial instruments (such as interest income, interest expense and investment gain). The Company expects to adopt this ASU in the first quarter of 2018 with a cumulative-effect adjustment to opening retained earnings. The Company’s ongoing implementation efforts include the identification of other revenue streams that are within the scope of the new guidance and reviewing related contracts with customers to determine the effect on certain non-interest income items presented in the Consolidated Statements of Operations and on the presentation and disclosures. In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . This amendment requires that equity investments, except those accounted for under the equity method of accounting or which result in consolidation of the investee, to be measured at fair value, with changes in the fair value being recorded in net income. However, equity investments that do not have readily determinable fair values will be measured at cost less impairment, if any, plus the effect of changes resulting from observable price transactions in orderly transactions or for the identical or similar investment of the same issuer. The amendment also simplifies the impairment assessment of equity instruments that do not have readily determinable fair values, eliminates the requirement to disclose methods and assumptions used to estimate fair value of instruments measured at their amortized cost on the balance sheet, requires that the disclosed fair values of financial instruments represent "exit price," requires entities to separately present in other comprehensive income the portion of the total change in fair value of a liability resulting from instrument-specific credit risk when the fair value option has been elected for that liability, requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes, and clarifies that an entity should evaluate the need for a valuation allowance on its deferred tax asset related to its available-for-sale securities in combination with its other deferred tax assets. This amendment will be effective for the Company for the first reporting period beginning after December 15, 2017, with earlier adoption permitted by public entities on a limited basis. Adoption of the amendment must be applied by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption, except for amendments related to equity instruments that do not have readily determinable fair values, for which it should be applied prospectively. While the Company is still in the process of evaluating the impacts of the adoption of this ASU, the Company does not expect the impact to be material to its financial position, results of operations or cash flows. In February 2016, the FASB issued ASU 2016-02, Leases, which will, among other impacts, change the criteria under which leases are identified and accounted for as on- or off-balance sheet. The guidance will be effective for the fiscal year beginning after December 15, 2018, including interim periods within that year. Once effective, the new guidance must be applied for all periods presented. The Company does not expect the new guidance to have a material impact on the Consolidated Statements of Income or the Consolidated Statements of Shareholders' Equity, since the Company recognizes assets and liabilities for all of its vehicle lease transactions. The Company will continue to evaluate the impact of the new guidance on its operating leases primarily for office space and computer equipment. Upon adoption, the Company will gross up its balance sheet by the present value of future minimum lease payments for these operating leases. In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses , which changes the criteria under which credit losses are measured. The amendment introduces a new credit reserving model known as the Current Expected Credit Loss (CECL) model, which replaces the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to establish credit loss estimates. The guidance will be effective for the fiscal year beginning after December 15, 2019, including interim periods within that year. The Company does not intend to adopt the new standard early and is currently evaluating the impact the new guidance will have on its financial position, results of operations and cash flows; however, it is expected that the new CECL model will alter the assumptions used in calculating the Company's credit losses, given the change to estimated losses for the estimated life of the financial asset, and will likely result in material changes to the Company’s credit and capital reserves. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments . This update amends the guidance in ASC 230 on the classification of certain cash receipts and payments in the SCF. The ASU’s amendments add or clarify guidance on eight cash flow issues including debt extinguishment costs, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions, and separately identifiable cash flows and application of the predominance principle. The guidance will be effective for the fiscal year beginning after December 15, 2017, including interim periods within that year. Early adoption is permitted, including adoption in an interim period, however any adjustments should be reflected as of the beginning of the fiscal year that includes the period of adoption. All of the amended guidance must be adopted in the same period. The Company is in the process of evaluating the impacts of the adoption of this ASU. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740), Intra-Entity Transfers of Assets Other Than Inventory , which will require an entity to recognize the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. This eliminates the current exception for all intra-entity transfers of an asset other than inventory that requires deferral of the tax effects until the asset is sold to a third party or otherwise recovered through use. The guidance will be effective for the Company for annual reporting periods beginning after December 15, 2017, including interim reporting periods. Early adoption is permitted at the beginning of an annual reporting period for which annual or interim financial statements have not been issued or made available for issuance. The Company is in the process of evaluating the impacts of the adoption of this ASU. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (A consensus of the FASB Emerging Issues Task Force) , which requires that the statement of cash flows include restricted cash in the beginning and end-of-period total amounts shown on the statement of cash flows and that the statement of cash flows explain changes in restricted cash during the period. The guidance will be effective for the Company for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted, however, adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The Company does not expect the adoption of this ASU to have an impact on its financial position, results of operations or cash flows and expects the impact to be disclosure only. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business . The new guidance revises the definition of a business, potentially affecting areas of accounting such as acquisitions, disposals, goodwill impairment, and consolidation. Under the new guidance, when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the assets acquired (or disposed of) would not represent a business. If this initial screen is met, no further analysis would be required. To be considered a business, an acquisition would have to include an input and a substantive process that together significantly contribute to the ability to create an output. In addition, the amendments narrow the definition of the term “output” so that it is consistent with how outputs are defined in ASC Topic 606, Revenue from Contracts with Customers . This new guidance will be effective for the Company for the first reporting period beginning after December 15, 2017, with earlier adoption permitted. Adoption of the amendments must be applied on a prospective basis. The Company is in the process of evaluating the impacts of the adoption of this ASU. On January 26, 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill & Other (Topic 350): Simplifying the Accounting for Goodwill Impairment . It removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. The new rules state that a goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts. The revised guidance will be applied prospectively, and is effective January 1, 2020, with early adoption permitted for any impairment tests performed after January 1, 2017. The Company is in the process of evaluating the impacts of the adoption of this ASU.

Finance Receivables

Finance Receivables	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Finance Receivables	Finance Receivables Held For Investment Finance receivables held for investment, net is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Retail installment contracts acquired individually (a) $ 23,200,111 $ 23,219,724 Purchased receivables 146,150 158,264 Receivables from dealers 69,643 68,707 Personal loans 7,499 12,272 Capital lease receivables (Note 3) 21,222 22,034 Finance receivables held for investment, net $ 23,444,625 $ 23,481,001 (a) The Company has elected the fair value option for certain retail installment contracts reported in finance receivables held for investment, net. As at March 31, 2017 and December 31, 2016 , $30,652 and $24,495 of loans were recorded at fair value (Note 13). The Company's held for investment portfolio of retail installment contracts acquired individually, receivables from dealers, and personal loans is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, 2017 Retail Installment Contracts Receivables from Personal Loans Non-TDR TDR Unpaid principal balance $ 21,286,466 $ 5,788,390 $ 70,377 $ 15,412 Credit loss allowance - specific — (1,604,489 ) — — Credit loss allowance - collective (1,836,730 ) — (734 ) (4,517 ) Discount (409,142 ) (88,546 ) — (3,822 ) Capitalized origination costs and fees 58,791 5,371 — 426 Net carrying balance $ 19,099,385 $ 4,100,726 $ 69,643 $ 7,499 December 31, 2016 Retail Installment Contracts Receivables from Personal Loans Non-TDR TDR Unpaid principal balance $ 21,528,406 $ 5,599,567 $ 69,431 $ 19,361 Credit loss allowance - specific — (1,611,295 ) — — Credit loss allowance - collective (1,799,760 ) — (724 ) — Discount (467,757 ) (91,359 ) — (7,721 ) Capitalized origination costs and fees 56,704 5,218 — 632 Net carrying balance $ 19,317,593 $ 3,902,131 $ 68,707 $ 12,272 Retail installment contracts Retail installment contracts are collateralized by vehicle titles, and the Company has the right to repossess the vehicle in the event the consumer defaults on the payment terms of the contract. Most of the Company’s retail installment contracts held for investment are pledged against warehouse lines or securitization bonds (Note 5). Most of the borrowers on the Company’s retail installment contracts held for investment are retail consumers; however, $764,611 and $848,918 of the unpaid principal balance represented fleet contracts with commercial borrowers as of March 31, 2017 and December 31, 2016 , respectively. During the three months ended March 31, 2017 and 2016 , the Company originated $1,588,506 and $2,549,249 , respectively, in Chrysler Capital loans which represented 42% and 49% , respectively, of the total retail installment contract originations. Additionally, during the three months ended March 31, 2017 and 2016 , the Company originated $1,600,659 and $1,617,080 in Chrysler Capital leases. As of March 31, 2017 and December 31, 2016 , the Company's auto retail installment contract portfolio consisted of $7,147,687 and $7,365,444 , respectively, of Chrysler loans which represents 31% and 32% , respectively, of the Company's auto retail installment contract portfolio. Retail installment contracts and vehicle leases entered into with FCA customers, as part of the Chrysler Agreement, represent a significant concentration of those portfolios and there is a risk that the Chrysler Agreement could be terminated prior to its expiration date. Termination of the Chrysler Agreement could result in a decrease in the amount of new retail installment contracts and vehicle leases entered into with FCA customers. As of March 31, 2017 , borrowers on the Company’s retail installment contracts held for investment are located in Texas ( 16% ), Florida ( 13% ), California ( 9% ), Georgia ( 6% ) and other states each individually representing less than 5% of the Company’s total. Purchased receivables Purchased receivables portfolios, which were acquired with deteriorated credit quality, is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Outstanding balance $ 212,018 $ 231,360 Outstanding recorded investment, net of impairment $ 147,094 $ 159,451 Changes in accretable yield on the Company’s purchased receivables portfolios for the periods indicated were as follows: For the Three Months Ended 2017 2016 Balance — beginning of period $ 107,041 $ 178,582 Accretion of accretable yield (11,144 ) (21,329 ) Reclassifications from (to) nonaccretable difference 2,049 (917 ) Balance — end of period $ 97,946 $ 156,336 During the three months ended March 31, 2017 and 2016 , the Company did not acquire any vehicle loan portfolios for which it was probable at acquisition that not all contractually required payments would be collected. However, during the three months ended March 31, 2017 , the Company recognized certain retail installment contracts with an unpaid principal balance of $152,208 held by non-consolidated securitization Trusts, under optional clean-up calls. Following the initial recognition of these loans at fair value, the performing loans in the portfolio are carried at amortized cost, net of allowance for credit losses. The Company elected the fair value option for all non-performing loans acquired (more than 60 days delinquent as of re-recognition date), for which it was probable that not all contractually required payments would be collected (Note 13). No such transactions occurred during the three months ended March 31, 2016 . Receivable from Dealers Receivables from dealers held for investment includes a term loan with a third-party vehicle dealer and lender that operates in multiple states. The loan allowed committed borrowings of $50,000 at March 31, 2017 and December 31, 2016 , and the unpaid principal balance of the facility was $50,000 at each of those dates. The term loan will mature on December 31, 2018 . The Company had accrued interest on this term loan of $169 and $165 at March 31, 2017 and December 31, 2016 , respectively. The remaining receivables from dealers held for investment are all Chrysler Agreement-related. As of March 31, 2017 , borrowers on these dealer receivables are located in Virginia ( 50% ), New York ( 23% ), Mississippi ( 18% ), Missouri ( 8% ) and Wisconsin ( 1% ). Personal Loans At December 31, 2015, the Company determined that its intent to sell certain non-performing personal installment loans had changed and now expects to hold these loans through their maturity. The Company recorded a lower of cost or market adjustment through investment gains (losses), net, immediately prior to transferring the loans to finance receivables held for investment at their new recorded investment. The carrying value of these loans was $457 and $539 at March 31, 2017 and December 31, 2016 , respectively. At September 30, 2016, the Company determined that its intent to sell certain personal revolving loans had changed and now expects to hold these loans through their maturity. The Company recorded a lower of cost or market adjustment through investment gains (losses), net, immediately prior to transferring the loans to finance receivables held for investment at their new recorded investment. The carrying value of these loans was $7,042 and $11,733 at March 31, 2017 and December 31, 2016 , respectively. Held For Sale The carrying value of the Company's finance receivables held for sale, net is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Retail installment contracts acquired individually $ 876,916 $ 1,045,815 Personal loans 979,103 1,077,600 Finance receivables held for sale, net $ 1,856,019 $ 2,123,415 Sales of retail installment contracts to third parties and proceeds from sales of charged-off assets for the three months ended March 31, 2017 and 2016 were as follows: For the Three Months Ended 2017 2016 Sales of retail installment contracts to third parties $ 230,568 $ 859,955 Proceeds from sales of charged-off assets 21,343 6,230 The Company retains servicing of retail installment contracts and leases sold to third parties. Total contracts sold to unrelated third parties and serviced as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, 2016 Serviced balance of retail installment contracts and leases sold to third parties $ 8,926,456 $ 10,116,788

Leases

Leases	3 Months Ended
	Mar. 31, 2017
Leases [Abstract]
Leases	Leases The Company has both operating and capital leases, which are separately accounted for and recorded on the Company's condensed consolidated balance sheets. Operating leases are reported as leased vehicles, net, while capital leases are included in finance receivables held for investment, net. Operating Leases Leased vehicles, net, which is comprised of leases originated under the Chrysler Agreement, consisted of the following as of March 31, 2017 and December 31, 2016 : March 31, December 31, Leased vehicles $ 12,442,141 $ 11,939,295 Less: accumulated depreciation (2,394,567 ) (2,326,342 ) Depreciated net capitalized cost 10,047,574 9,612,953 Manufacturer subvention payments, net of accretion (1,141,194 ) (1,066,531 ) Origination fees and other costs 21,156 18,206 Net book value $ 8,927,536 $ 8,564,628 Periodically, the Company executes bulk sales of Chrysler Capital leases to a third party. The bulk sale agreements include certain provisions whereby the Company agrees to share in residual losses for lease terminations with losses over a specific percentage threshold (Note 10). The Company has retained servicing on the sold leases. During the three months ended March 31, 2017 and 2016, the Company did not execute any bulk sales of leases originated under the Chrysler Capital program. The following summarizes the future minimum rental payments due to the Company as lessor under operating leases as of March 31, 2017 : Remainder of 2017 $ 1,191,931 2018 1,091,466 2019 445,100 2020 28,504 2021 79 Thereafter — Total $ 2,757,080 Capital Leases Certain leases originated by the Company are accounted for as capital leases, as the contractual residual values are nominal amounts. Capital lease receivables, net consisted of the following as of March 31, 2017 and December 31, 2016 : March 31, December 31, Gross investment in capital leases $ 33,657 $ 39,417 Origination fees and other 68 150 Less: unearned income (5,898 ) (7,545 ) Net investment in capital leases before allowance 27,827 32,022 Less: allowance for lease losses (6,605 ) (9,988 ) Net investment in capital leases $ 21,222 $ 22,034 The following summarizes the future minimum lease payments due to the Company as lessor under capital leases as of March 31, 2017 : Remainder of 2017 $ 10,365 2018 13,195 2019 6,280 2020 2,495 2021 1,322 Thereafter — Total $ 33,657

Credit Loss Allowance and Credi

Credit Loss Allowance and Credit Quality	3 Months Ended
	Mar. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]
Credit Loss Allowance and Credit Quality	Credit Loss Allowance and Credit Quality Credit Loss Allowance The Company estimates the allowance for credit losses on individually acquired retail installment contracts and personal loans held for investment not classified as TDRs based on delinquency status, historical loss experience, estimated values of underlying collateral, when applicable, and various economic factors. In developing the allowance, the Company utilizes a loss emergence period assumption, a loss given default assumption applied to recorded investment, and a probability of default assumption based on a loss forecasting model. The loss emergence period assumption represents the average length of time between when a loss event is first estimated to have occurred and when the account is charged-off. The recorded investment represents unpaid principal balance adjusted for unaccreted net discounts, subvention from manufacturers, and origination costs. Under this approach, the resulting allowance represents the expected net losses of recorded investment inherent in the portfolio. For loans classified as TDRs, impairment is generally measured based on the present value of expected future cash flows discounted at the original effective interest rate. For loans that are considered collateral-dependent, such as certain bankruptcy modifications, impairment is measured based on the fair value of the collateral, less its estimated cost to sell. The amount of the allowance is equal to the difference between the loan’s impaired value and the recorded investment. The Company maintains a general credit loss allowance for receivables from dealers based on risk ratings and individually evaluates loans for specific impairment as necessary. As of March 31, 2017 , the credit loss allowance for receivables from dealers is comprised of a general allowance as none of these receivables have been determined to be individually impaired. As of March 31, 2016, the credit loss allowance for receivables from dealers is comprised of a general allowance of $978 , plus $425 specific impairment for substandard commercial risk rated receivables from dealers with an unpaid principal balance of $5,965 . The activity in the credit loss allowance for individually acquired and dealer loans for the three months ended March 31, 2017 and 2016 was as follows: Three Months Ended March 31, 2017 Retail Installment Contracts Acquired Individually Receivables from Dealers Personal Loans Balance — beginning of period $ 3,411,055 $ 724 $ — Provision for credit losses 629,097 10 7,975 Charge-offs (a) (1,224,697 ) — (3,632 ) Recoveries 625,764 — 174 Balance — end of period $ 3,441,219 $ 734 $ 4,517 (a) Charge-offs for retail installment contracts acquired individually includes approximately $24 million for the partial write-down of loans to the collateral value less estimated costs to sell, for which a bankruptcy notice was received. Three Months Ended March 31, 2016 Retail Installment Contracts Acquired Individually Receivables Balance — beginning of period $ 3,197,414 $ 916 Provision for credit losses 663,126 487 Charge-offs (1,150,628 ) — Recoveries 610,315 — Balance — end of period $ 3,320,227 $ 1,403 The impairment activity related to purchased receivables portfolios for the three months ended March 31, 2017 and 2016 was as follows: Three Months Ended 2017 2016 Balance — beginning of period $ 169,323 $ 172,308 Incremental provisions for purchased receivable portfolios — — Incremental reversal of provisions for purchased receivable portfolios — (1,896 ) Balance — end of period $ 169,323 $ 170,412 The Company estimates lease losses on the capital lease receivable portfolio based on delinquency status and loss experience to date, as well as various economic factors. The activity in the lease loss allowance for capital leases for the three months ended March 31, 2017 and 2016 was as follows: Three Months Ended 2017 2016 Balance — beginning of period $ 9,988 $ 19,878 Provision for lease losses (2,069 ) (1,547 ) Charge-offs (3,679 ) (12,359 ) Recoveries 2,365 9,888 Balance — end of period $ 6,605 $ 15,860 Delinquencies Retail installment contracts are generally classified as non-performing when they are greater than 60 days past due as to contractual principal or interest payments. See discussion over TDR loans below. Dealer receivables are classified as non-performing when they are greater than 90 days past due. At the time a loan is placed in non-performing status, previously accrued and uncollected interest is reversed against interest income. If an account is returned to a performing status, the Company returns to accruing interest on the contract. The Company considers an account delinquent when an obligor fails to pay the required minimum portion of the scheduled payment by the due date. With respect to receivables originated by the Company prior to January 1, 2017 and through its “Chrysler Capital” channel, the required minimum payment is 90% of the scheduled payment. With respect to all other receivables originated by the Company or acquired by the Company from an unaffiliated third-party originator prior to January 1, 2017, the required minimum payment is 50% of the scheduled payment. With respect to receivables originated by the Company or acquired by the Company from an unaffiliated third-party originator on or after January 1, 2017, the required minimum payment is 90% of the scheduled payment, regardless of which channel the receivable was originated through. In each case, the period of delinquency is based on the number of days payments are contractually past due. As of March 31, 2017 and December 31, 2016 , a summary of delinquencies on retail installment contracts held for investment portfolio is as follows: March 31, 2017 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 30-59 days past due $ 2,336,113 $ 9,882 $ 2,345,995 Delinquent principal over 59 days (a) 1,148,517 4,852 1,153,369 Total delinquent principal $ 3,484,630 $ 14,734 $ 3,499,364 December 31, 2016 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 30-59 days past due $ 2,911,800 $ 13,703 $ 2,925,503 Delinquent principal over 59 days (a) 1,520,105 6,638 1,526,743 Total delinquent principal $ 4,431,905 $ 20,341 $ 4,452,246 (a) Interest is accrued until 60 days past due in accordance with the Company's accounting policy for retail installment contracts. The balances in the above tables reflect total unpaid principal balance rather than net recorded investment before allowance. As of March 31, 2017 and December 31, 2016 , there were no receivables from dealers that were 30 days or more delinquent. As of March 31, 2017 and December 31, 2016 , there were $27,617 and $33,886 , respectively, of retail installment contracts held for sale that were 30 days or more delinquent. Credit Quality Indicators FICO ® Distribution — A summary of the credit risk profile of the Company’s retail installment contracts held for investment by FICO ® distribution, determined at origination, as of March 31, 2017 and December 31, 2016 was as follows: FICO ® Band March 31, 2017 December 31, 2016 Commercial (a) 2.8% 3.1% No-FICOs 12.0% 12.2% <540 22.3% 22.1% 540-599 31.7% 31.4% 600-639 17.4% 17.4% >640 13.8% 13.8% (a) No FICO score is obtained on loans to commercial borrowers. (b) FICO scores are updated quarterly. Commercial Lending — The Company's risk department performs a commercial analysis and classifies certain loans over an internal threshold based on the commercial lending classifications described in Note 4 of the 2016 Annual Report on Form 10-K. Fleet loan credit quality indicators for retail installment contracts held for investment with commercial borrowers as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, Pass $ 49,752 $ 17,585 Special Mention 15,282 2,790 Substandard 2,696 1,488 Doubtful — — Loss 125 — Total $ 67,855 $ 21,863 Commercial loan credit quality indicators for receivables from dealers held for investment as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, Pass $ 68,672 $ 67,681 Special Mention — — Substandard 1,705 1,750 Doubtful — — Loss — — Unpaid principal balance $ 70,377 $ 69,431 Troubled Debt Restructurings In certain circumstances, the Company modifies the terms of its finance receivables to troubled borrowers. A modification of finance receivable terms is considered a TDR if the Company grants a concession to a borrower for economic or legal reasons related to the debtor’s financial difficulties that would not otherwise have been considered. Management considers TDRs to include all individually acquired retail installment contracts that have been modified at least once, deferred for a period of 90 days or more, or deferred at least twice. Additionally, restructurings through bankruptcy proceedings are deemed to be TDRs. The purchased receivables portfolio, operating and capital leases, and loans held for sale, including personal loans, are excluded from the scope of the applicable guidance. The Company's TDR balance as of March 31, 2017 and December 31, 2016 primarily consisted of loans that had been deferred or modified to receive a temporary reduction in monthly payment. As of March 31, 2017 and December 31, 2016 , there were no receivables from dealers classified as a TDR. For loans not classified as TDRs, the Company generally estimates an appropriate allowance for credit losses based on delinquency status, the Company’s historical loss experience, estimated values of underlying collateral, and various economic factors. Once a loan has been classified as a TDR, it is generally assessed for impairment based on the present value of expected future cash flows discounted at the loan's original effective interest rate considering all available evidence. For loans that are considered collateral-dependent, such as certain bankruptcy modifications, impairment is measured based on the fair value of the collateral, less its estimated cost to sell. The table below presents the Company’s TDRs as of March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Retail Installment Contracts Outstanding recorded investment (a) $ 5,785,032 $ 5,637,792 Impairment (1,604,489 ) (1,611,295 ) Outstanding recorded investment, net of impairment $ 4,180,543 $ 4,026,497 (a) As of March 31, 2017, the outstanding recorded investment excludes $14.7 million of collateral-dependent bankruptcy TDRs that has been written down by $7.6 million to fair value less cost to sell. A summary of the Company’s delinquent TDRs at March 31, 2017 and December 31, 2016 , is as follows: March 31, December 31, 2016 Retail Installment Contracts Principal, 30-59 days past due $ 1,078,637 $ 1,253,848 Delinquent principal over 59 days 579,262 736,691 Total delinquent TDR principal $ 1,657,899 $ 1,990,539 A loan that has been classified as a TDR remains so until the loan is liquidated through payoff or charge-off. TDRs are placed on nonaccrual status when the Company believes repayment under the revised terms is not reasonably assured and, at the latest when the account becomes past due more than 60 days, and considered for return to accrual when a sustained period of repayment performance has been achieved. Average recorded investment and income recognized on TDR loans are as follows: Three Months Ended March 31, 2017 March 31, 2016 Retail Installment Contracts Average outstanding recorded investment in TDRs $ 5,711,412 $ 4,666,713 Interest income recognized $ 260,352 $ 174,191 The following table summarizes the financial effects of TDRs that occurred during the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 March 31, 2016 Retail Installment Contracts Outstanding recorded investment before TDR $ 881,699 $ 692,928 Outstanding recorded investment after TDR $ 866,278 $ 699,286 Number of contracts (not in thousands) 49,499 39,380 Loan restructurings accounted for as TDRs within the previous twelve months that subsequently defaulted during the three months ended March 31, 2017 and 2016 are summarized in the following table: Three Months Ended March 31, 2017 March 31, 2016 Retail Installment Contracts Recorded investment in TDRs that subsequently defaulted (a) $ 211,697 $ 199,862 Number of contracts (not in thousands) 11,894 11,402 (a) For TDR modifications and TDR modifications that subsequently defaults, the allowance methodology remains unchanged.

Debt

Debt	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Debt	Debt Revolving Credit Facilities The following table presents information regarding credit facilities as of March 31, 2017 and December 31, 2016 : March 31, 2017 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Facilities with third parties: Warehouse line January 2018 $ 168,084 $ 500,000 2.84% $ 213,200 $ — Warehouse line Various (a) 232,045 1,250,000 3.73% 326,912 11,207 Warehouse line (b) August 2018 216,520 780,000 3.30% 281,270 6,946 Warehouse line (c) August 2018 2,018,143 3,120,000 2.29% 3,067,595 64,912 Warehouse line October 2018 435,477 1,800,000 3.31% 620,916 10,000 Repurchase facility (d) December 2017 328,608 328,608 3.32% — 14,012 Repurchase facility (d) April 2017 235,509 235,509 2.04% — — Repurchase facility (d) March 2018 147,182 147,182 3.31% — — Repurchase facility (d) April 2017 59,202 59,202 2.09% — — Warehouse line November 2018 301,199 1,000,000 2.51% 451,750 7,902 Warehouse line July 2018 235,784 250,000 3.25% 500,095 44,377 Warehouse line October 2018 132,365 400,000 2.91% 189,416 2,671 Warehouse line November 2018 174,720 500,000 2.16% 186,481 4,722 Warehouse line October 2017 273,800 300,000 2.44% 322,183 10,803 Total facilities with third parties 4,958,638 10,670,501 6,159,818 177,552 Lines of credit with Santander and related subsidiaries (e, f): Line of credit December 2017 500,000 500,000 3.24% — — Line of credit December 2018 — 500,000 3.89% — — Line of credit December 2017 1,000,000 1,000,000 2.83% — — Line of credit December 2018 400,000 1,000,000 3.36% — — Promissory Note March 2019 300,000 300,000 2.45% — — Promissory Note March 2022 650,000 650,000 4.20% — — Line of credit March 2019 — 3,000,000 3.94% — — Total facilities with Santander and related subsidiaries 2,850,000 6,950,000 — — Total revolving credit facilities $ 7,808,638 $ 17,620,501 $ 6,159,818 $ 177,552 (a) Half of the outstanding balance on this facility matures in April 2017 and half matures in March 2018. In April 2017, the facilities that matured were extended to March 2019. (b) This line is held exclusively for financing of Chrysler Capital loans. (c) This line is held exclusively for financing of Chrysler Capital leases. (d) These repurchase facilities are collateralized by securitization notes payable retained by the Company. These facilities have rolling maturities of up to one year . In April 2017, the repurchase facilities that matured were extended to May 2017. (e) These lines generally are also collateralized by securitization notes payable and residuals retained by the Company. As of March 31, 2017 and December 31, 2016 , $1,623,538 and $1,316,568 , respectively, of the aggregate outstanding balances on these facilities were unsecured. (f) SPAIN Revolving Funding LLC (a subsidiary) established a committed facility of $750 million with the New York branch of Santander on April 3, 2017. Borrowings under this facility bear interest at a rate equal to one-month LIBOR plus a spread (based on the quality of the collateral for the facility) ranging from 0.60% to 0.90% . The current maturity date of the facility is December 31, 2018. December 31, 2016 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Facilities with third parties: Warehouse line January 2018 $ 153,784 $ 500,000 3.17% $ 213,578 $ — Warehouse line Various 462,085 1,250,000 2.52% 653,014 14,916 Warehouse line August 2018 534,220 780,000 1.98% 608,025 24,520 Warehouse line August 2018 3,119,943 3,120,000 1.91% 4,700,774 70,991 Warehouse line October 2018 702,377 1,800,000 2.51% 994,684 23,378 Repurchase facility December 2017 507,800 507,800 2.83% — 22,613 Repurchase facility April 2017 235,509 235,509 2.04% — — Warehouse line November 2018 578,999 1,000,000 1.56% 850,758 17,642 Warehouse line October 2018 202,000 400,000 2.22% 290,867 5,435 Warehouse line November 2018 — 500,000 2.07% — — Warehouse line October 2017 243,100 300,000 2.38% 295,045 9,235 Total facilities with third parties 6,739,817 10,393,309 8,606,745 188,730 Lines of credit with Santander and related subsidiaries: Line of credit December 2017 500,000 500,000 3.04% — — Line of credit December 2018 175,000 500,000 3.87% — — Line of credit December 2017 1,000,000 1,000,000 2.86% — — Line of credit December 2018 1,000,000 1,000,000 2.88% — — Line of credit March 2017 300,000 300,000 2.25% — — Line of credit March 2019 — 3,000,000 3.74% — — Total facilities with Santander and related subsidiaries 2,975,000 6,300,000 — — Total revolving credit facilities $ 9,714,817 $ 16,693,309 $ 8,606,745 $ 188,730 Facilities with Third Parties The warehouse lines and repurchase facilities are fully collateralized by a designated portion of the Company’s retail installment contracts (Note 2), leased vehicles (Note 3), securitization notes payables and residuals retained by the Company.` Lines of Credit with Santander and Related Subsidiaries Through SHUSA, Santander provides the Company with $3,000,000 of committed revolving credit that can be drawn on an unsecured basis. Through its New York branch, Santander provides the Company with an additional $3,000,000 of long-term committed revolving credit facilities. The facilities offered through the New York branch are structured as three - and five -year floating rate facilities, with current maturity dates of December 31, 2017 and December 31, 2018 , respectively. These facilities currently permit unsecured borrowing but generally are collateralized by retail installment contracts and retained residuals. Any secured balances outstanding under the facilities at the time of their maturity will amortize to match the maturities and expected cash flows of the corresponding collateral. Santander Consumer ABS Funding 2, LLC (a subsidiary) established a committed facility of $300 million with SHUSA on March 6, 2014. This facility matured on March 6, 2017 and was replaced on the same day with a $300 million term promissory note executed by SC Illinois (a subsidiary) as the borrower and SHUSA as the lender. During the three months ended March 31, 2017, the Company paid zero in principal and zero in interest and fees on this note. Interest accrues on this note at a rate equal to three-month LIBOR plus 1.35% . The note has a maturity date of March 6, 2019. SC Illinois as borrower executed a $650 million term promissory note with SHUSA as lender on March 31, 2017. During the three months ended March 31, 2017, the Company paid zero in principal and zero in interest and fees on this note. Interest accrues on this note at the rate of 4.20% . The note has a maturity date of March 31, 2022. Secured Structured Financings The following table presents information regarding secured structured financings as of March 31, 2017 and December 31, 2016 : March 31, 2017 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 $ 69,677 $ 1,025,540 1.23% $ 113,867 $ 31,277 2013 Securitizations January 2019 - March 2021 992,709 6,689,700 0.89%-1.59% 1,272,176 228,108 2014 Securitizations February 2020 - April 2022 1,648,799 6,391,020 1.16%-1.72% 2,071,309 257,629 2015 Securitizations September 2019 - January 2023 3,802,864 9,264,432 1.33%-2.29% 5,073,548 489,225 2016 Securitizations April 2022 - March 2024 5,266,504 7,462,790 1.63%-2.80% 6,802,736 459,748 2017 Securitizations April 2023 - July 2024 3,010,805 3,125,430 2.01%-2.43% 3,764,454 175,497 Public securitizations (a) 14,791,358 33,958,912 19,098,090 1,641,484 2010 Private issuances June 2011 99,172 516,000 1.29% 198,524 7,117 2011 Private issuances December 2018 237,745 1,700,000 1.46% 517,516 33,863 2013 Private issuances September 2018 2,988,296 2,044,054 1.28%-1.38% 5,064,575 237,078 2014 Private issuances March 2018 - November 2021 264,411 1,530,125 1.05%-1.40% 382,536 50,425 2015 Private issuances December 2016 - July 2019 1,984,521 2,605,062 0.88%-2.81% 1,998,100 169,635 2016 Private issuances May 2020 - September 2024 2,262,387 3,050,000 1.55%-2.86% 3,218,736 117,809 2017 Private issuances April 2021 - September 2021 1,038,776 1,000,000 1.85%-2.27% 1,501,121 16,826 Privately issued amortizing notes 8,875,308 12,445,241 12,881,108 632,753 Total secured structured financings $ 23,666,666 $ 46,404,153 $ 31,979,198 $ 2,274,237 (a) Securitizations executed under Rule 144A of the Securities Act are included within this balance. December 31, 2016 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 $ 197,470 $ 2,525,540 0.92%-1.23% $ 312,710 $ 73,733 2013 Securitizations January 2019 - January 2021 1,172,904 6,689,700 0.89%-1.59% 1,484,014 222,187 2014 Securitizations February 2020 - January 2021 1,858,600 6,391,020 1.16%-1.72% 2,360,939 250,806 2015 Securitizations September 2019 - January 2023 4,326,292 9,317,032 1.33%-2.29% 5,743,884 468,787 2016 Securitizations April 2022 - March 2024 5,881,216 7,462,790 1.63%-2.46% 7,572,977 408,086 Securitizations 13,436,482 32,386,082 17,474,524 1,423,599 2010 Private issuances June 2011 113,157 516,000 1.29% 213,235 6,270 2011 Private issuances December 2018 342,369 1,700,000 1.46% 617,945 31,425 2013 Private issuances September 2018-September 2020 2,375,964 2,693,754 1.13%-1.38% 4,122,963 164,740 2014 Private issuances March 2018 - December 2021 643,428 3,271,175 1.05%-1.40% 1,129,506 68,072 2015 Private issuances December 2016 - July 2019 2,185,166 2,855,062 0.88%-2.81% 2,384,661 140,269 2016 Securitizations May 2020 - September 2024 2,512,323 3,050,000 1.55%-2.86% 3,553,577 90,092 Privately issued amortizing notes 8,172,407 14,085,991 12,021,887 500,868 Total secured structured financings $ 21,608,889 $ 46,472,073 $ 29,496,411 $ 1,924,467 Most of the Company’s secured structured financings are in the form of public, SEC-registered securitizations. The Company also executes private securitizations under Rule 144A of the Securities Act and periodically issues private term amortizing notes, which are structured similarly to securitizations but are acquired by banks and conduits. The Company’s securitizations and private issuances are collateralized by vehicle retail installment contracts and loans or leases. As of March 31, 2017 and December 31, 2016 , the Company had private issuances of notes backed by vehicle leases totaling $5,158,859 and $3,862,274 , respectively. Unamortized debt issuance costs are amortized as interest expense over the terms of the related notes payable using the effective interest method and are classified as a discount to the related recorded debt balance. Amortized debt issuance costs were $8,729 and $6,119 for the three months ended March 31, 2017 and 2016 , respectively. For securitizations, the term takes into consideration the expected execution of the contractual call option, if applicable. Amortization of premium or accretion of discount on acquired notes payable is also included in interest expense using the effective interest method over the estimated remaining life of the acquired notes. Total interest expense on secured structured financings for the three months ended March 31, 2017 and 2016 was $124,065 and $94,376 , respectively.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2017
Variable Interest Entity Disclosure [Abstract]
Variable Interest Entities	Variable Interest Entities The Company transfers retail installment contracts and leased vehicles into newly formed Trusts that then issue one or more classes of notes payable backed by the collateral. The Company’s continuing involvement with these Trusts is in the form of servicing the assets and, generally, through holding residual interests in the Trusts. The Trusts are considered VIEs under U.S. GAAP and the Company may or may not consolidate these VIEs on the condensed consolidated balance sheets. For further description of the Company’s securitization activities, involvement with VIEs and accounting policies regarding consolidation of VIEs, see Note 7 of the 2016 Annual Report on Form 10-K. On-balance sheet variable interest entities The Company retains servicing for receivables transferred to the Trusts and receives a monthly servicing fee on the outstanding principal balance. Supplemental fees, such as late charges, for servicing the receivables are reflected in fees, commissions and other income. As of March 31, 2017 and December 31, 2016 , the Company was servicing $27,651,173 and $27,802,971 , respectively, of gross retail installment contracts that have been transferred to consolidated Trusts. The remainder of the Company’s retail installment contracts remain unpledged. A summary of the cash flows received from consolidated securitization trusts during the three months ended March 31, 2017 and 2016 , is as follows: Three Months Ended March 31, 2017 March 31, 2016 Assets securitized $ 7,646,625 $ 3,657,955 Net proceeds from new securitizations (a) $ 5,576,801 $ 2,702,004 Net proceeds from sale of retained bonds 115,970 — Cash received for servicing fees (b) 208,923 194,365 Net distributions from Trusts (b) 678,229 629,726 Total cash received from Trusts $ 6,579,923 $ 3,526,095 (a) Includes additional advances on existing securitizations. (b) These amounts are not reflected in the accompanying condensed consolidated statements of cash flows because these cash flows are intra-company and eliminated in consolidation. Off-balance sheet variable interest entities During the three months ended March 31, 2017 , the Company sold $700,022 of gross retail installment contracts to VIEs in off-balance sheet securitizations for a loss of $2,719 which is recorded in investment losses, net in the accompanying condensed consolidated statements of income. The transaction was executed under the new securitization platform-SPAIN, with Santander. S antander, as a majority owned affiliate, will hold eligible vertical interest in Notes and Certificates of not less than 5% to comply with the Dodd-Frank Act risk retention rules. For the three months ended March 31, 2016, the Company executed no off-balance sheet securitizations with VIEs with which it has continuing involvement. As of March 31, 2017 and December 31, 2016 , the Company was servicing $2,943,905 and $2,741,101 , respectively, of gross retail installment contracts that have been sold in off-balance sheet securitizations and were subject to an optional clean-up call. The portfolio was comprised as follows: March 31, 2017 December 31, 2016 SPAIN $ 666,346 $ — Total serviced for related parties 666,346 — Chrysler Capital securitizations 2,188,452 2,472,756 Other third parties 89,107 268,345 Total serviced for third parties 2,277,559 2,741,101 Total serviced for others portfolio $ 2,943,905 $ 2,741,101 Other than repurchases of sold assets due to standard representations and warranties, the Company has no exposure to loss as a result of its involvement with these VIEs. A summary of the cash flows received from off-balance sheet securitization trusts during the three months ended March 31, 2017 and 2016 is as follows: Three Months Ended March 31, 2017 March 31, 2016 Receivables securitized (a) $ 700,022 $ — Net proceeds from new securitizations $ 702,319 $ — Cash received for servicing fees 1,398 15,701 Total cash received from securitization trusts $ 703,717 $ 15,701 (a) Represents the unpaid principal balance at the time of original securitization.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Company uses derivatives financial instruments such as interest rate swaps, interest rate caps and the corresponding options written in order to offset the interest rate caps to manage the Company's exposure to changing interest rates. The Company uses both derivatives that qualify for hedge accounting treatment and economic hedges. The Company has purchase price holdback payments and total return settlement payments that are considered to be derivatives, collectively referred to herein as “total return settlement,” and accordingly are marked to fair value each reporting period. The Company is obligated to make purchase price holdback payments on a periodic basis to a third-party originator of loans that the Company has purchased, when losses are lower than originally expected. The Company also is obligated to make total return settlement payments to this third-party originator in 2016 and 2017 if returns on the purchased loans are greater than originally expected. All purchase price holdback payments and all total return settlement payments due in 2016 have been made. The underlying notional amounts and aggregate fair values of these derivatives financial instruments at March 31, 2017 and December 31, 2016 , are as follows: March 31, 2017 December 31, 2016 Notional Fair Value Notional Fair Value Interest rate swap agreements designated as cash flow hedges $ 7,045,800 $ 56,573 $ 7,854,700 $ 44,618 Interest rate swap agreements not designated as hedges 813,700 3,258 1,019,900 1,939 Interest rate cap agreements 10,690,797 104,625 9,463,935 76,269 Options for interest rate cap agreements 10,690,797 (104,692 ) 9,463,935 (76,281 ) Total return settlement 658,471 (31,123 ) 658,471 (30,618 ) In addition to the above, the Company is the holder of a warrant that gives it the right, if certain vesting conditions are satisfied, to purchase additional shares in a company in which it has a cost method investment. This warrant was issued in 2012 and is carried at its estimated fair value of zero at March 31, 2017 and December 31, 2016 . See Note 13 for disclosure of fair value and balance sheet location of the Company's derivative financial instruments. The Company enters into legally enforceable master netting agreements that reduce risk by permitting netting of transactions, such as derivatives and collateral posting, with the same counterparty on the occurrence of certain events. A master netting agreement allows two counterparties the ability to net-settle amounts under all contracts, including any related collateral posted, through a single payment. The right to offset and certain terms regarding the collateral process, such as valuation, credit events and settlement, are contained in ISDA master agreements. The Company has elected to present derivative balances on a gross basis even if the derivative is subject to a legally enforceable master netting (ISDA) agreement. Collateral that is received or pledged for these transactions is disclosed within the “Gross amounts not offset in the Condensed Consolidated Balance Sheet” section of the tables below. Information on the offsetting of derivative assets and derivative liabilities due to the right of offset was as follows, as of March 31, 2017 and December 31, 2016 : Gross Amounts Not Offset in the Assets Presented Cash Net March 31, 2017 Interest rate swaps - Santander and affiliates $ 8,194 $ — $ 8,194 Interest rate swaps - third party 51,957 (9,783 ) 42,174 Interest rate caps - Santander and affiliates 7,812 — 7,812 Interest rate caps - third party 96,813 (11,586 ) 85,227 Total derivatives subject to a master netting arrangement or similar arrangement 164,776 (21,369 ) 143,407 Total derivatives not subject to a master netting arrangement or similar arrangement — — — Total derivative assets $ 164,776 $ (21,369 ) $ 143,407 Total financial assets $ 164,776 $ (21,369 ) $ 143,407 December 31, 2016 Interest rate swaps - Santander and affiliates $ 5,372 $ — $ 5,372 Interest rate swaps - third party 42,254 (22,100 ) 20,154 Interest rate caps - Santander and affiliates 7,593 — 7,593 Interest rate caps - third party 68,676 — 68,676 Total derivatives subject to a master netting arrangement or similar arrangement 123,895 (22,100 ) 101,795 Total derivatives not subject to a master netting arrangement or similar arrangement — — — Total derivative assets $ 123,895 $ (22,100 ) $ 101,795 Total financial assets $ 123,895 $ (22,100 ) $ 101,795 (a) Cash collateral pledged is reported in Other liabilities or Due to affiliate, as applicable, in the condensed consolidated balance sheet. Gross Amounts Not Offset in the Liabilities Presented Cash Net March 31, 2017 Interest rate swaps - Santander & affiliates $ 87 $ (87 ) $ — Interest rate swaps - third party 234 (234 ) — Back to back - Santander & affiliates 7,812 (7,812 ) — Back to back - third party 96,880 (81,503 ) 15,377 Total derivatives subject to a master netting arrangement or similar arrangement 105,013 (89,636 ) 15,377 Total return settlement 31,123 — 31,123 Total derivatives not subject to a master netting arrangement or similar arrangement 31,123 — 31,123 Total derivative liabilities $ 136,136 $ (89,636 ) $ 46,500 Total financial liabilities $ 136,136 $ (89,636 ) $ 46,500 December 31, 2016 Interest rate swaps - Santander & affiliates $ 546 $ (546 ) $ — Interest rate swaps - third party 524 (524 ) — Back to back - Santander & affiliates 7,593 (7,593 ) — Back to back - third party 68,688 (68,688 ) — Total derivatives subject to a master netting arrangement or similar arrangement 77,351 (77,351 ) — Total return settlement 30,618 — 30,618 Total derivatives not subject to a master netting arrangement or similar arrangement 30,618 — 30,618 Total derivative liabilities $ 107,969 $ (77,351 ) $ 30,618 Total financial liabilities $ 107,969 $ (77,351 ) $ 30,618 (a) Cash collateral pledged is reported in Other assets or Due from affiliate, as applicable, in the condensed consolidated balance sheet. The gross gains (losses) reclassified from accumulated other comprehensive income (loss) to net income, and gains (losses) recognized in net income, are included as components of interest expense. The impacts on the condensed consolidated statements of income and comprehensive income for the three months ended March 31, 2017 and 2016 were as follows: Three Months Ended March 31, 2017 Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Interest rate swap agreements designated as cash flow hedges $ 383 $ 7,332 $ 4,240 Derivative instruments not designated as hedges: Gains (losses) recognized in interest expense $ (1,204 ) Gains (losses) recognized in operating expenses $ (505 ) Three Months Ended March 31, 2016 Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Interest rate swap agreements designated as cash flow hedges $ 208 $ (73,005 ) $ (12,082 ) Derivative instruments not designated as hedges: Gains (losses) recognized in interest expense $ (5,499 ) Gains (losses) recognized in operating expenses $ (1,316 ) The ineffectiveness related to the interest rate swap agreements designated as cash flow hedges was insignificant for the three months ended March 31, 2017 and 2016 . The Company estimates that approximately $8,000 of unrealized gains included in accumulated other comprehensive income (loss) will be reclassified to interest expense within the next twelve months.

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Other assets were comprised as follows: March 31, December 31, Vehicles (a) $ 314,960 $ 257,382 Manufacturer subvention payments receivable (b) 134,347 161,447 Upfront fee (b) 91,250 95,000 Derivative assets at fair value (c) 148,770 110,930 Derivative - third party collateral 81,737 75,089 Prepaids 46,613 46,177 Accounts receivable 29,872 22,480 Other 14,322 16,905 Other assets $ 861,871 $ 785,410 (a) Includes vehicles obtained through repossession as well as vehicles obtained due to lease terminations. (b) These amounts relate to the Chrysler Agreement. The Company paid a $150,000 upfront fee upon the May 2013 inception of the agreement. The fee is being amortized into finance and other interest income over a ten -year term. As the preferred financing provider for FCA, the Company is entitled to subvention payments on loans and leases with below-market customer payments. (c) Derivative assets at fair value represent the gross amount of derivatives presented in the condensed consolidated financial statements. Refer to Note 7 to these Condensed Consolidated Financial Statements for the detail of these amounts.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded income tax expense of $78,001 ( 35.2% effective tax rate) and $120,643 ( 36.7% effective tax rate) during the three months ended March 31, 2017 and 2016 , respectively. The decline in the effective tax rate was primarily due to changes in estimated electric vehicle tax credits. The Company is a party to a tax sharing agreement requiring that the unitary state tax liability among affiliates included in unitary state tax returns be allocated using the hypothetical separate company tax calculation method. The Company had a net receivable from affiliates under the tax sharing agreement of $467 and $1,087 at March 31, 2017 and December 31, 2016 , respectively, which was included in related party taxes receivable in the condensed consolidated balance sheet. Significant judgment is required in evaluating and reserving for uncertain tax positions. Although management believes adequate reserves have been established for all uncertain tax positions, the final outcomes of these matters may differ. Management does not believe the outcome of any uncertain tax position, individually or combined, will have a material effect on the results of operations. The reserve for uncertain tax positions, as well as associated penalties and interest, is a component of the income tax provision.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The following table summarizes liabilities recorded for commitments and contingencies as of March 31, 2017 and December 31, 2016 , all of which are included in accounts payable and accrued expenses in the accompanying condensed consolidated balance sheets: Agreement or Legal Matter Commitment or Contingency March 31, 2017 December 31, 2016 Chrysler Agreement Revenue-sharing and gain-sharing payments $ 9,234 $ 10,134 Agreement with Bank of America Servicer performance fee 10,814 9,797 Agreement with CBP Loss-sharing payments 4,612 4,563 Legal and regulatory proceedings Aggregate legal and regulatory liabilities 43,170 39,200 Following is a description of the agreements and legal matters pursuant to which the liabilities in the preceding table were recorded. Chrysler Agreement Under terms of the Chrysler Agreement, the Company must make revenue sharing payments to FCA and gain-sharing payments when residual gains on leased vehicles exceed a specified threshold. The Company had accrued $9,234 and $ 10,134 at March 31, 2017 and December 31, 2016 , respectively, related to these obligations. The Chrysler Agreement requires, among other things, that the Company bear the risk of loss on loans originated pursuant to the agreement, but also that FCA shares in any residual gains and losses from consumer leases. The agreement also requires that the Company maintain at least $5.0 billion in funding available for dealer inventory financing and $4.5 billion of financing dedicated to FCA retail financing. In turn, FCA must provide designated minimum threshold percentages of its subvention business to the Company. The Chrysler Agreement is subject to early termination in certain circumstances, including the failure by either party to comply with certain of their ongoing obligations under the Chrysler Agreement. These obligations include the Company's meeting specified escalating penetration rates for the first five years of the agreement. The Company has not met these penetration rates at March 31, 2017 . If the Chrysler Agreement were to terminate, there could be a materially adverse impact to the Company's financial condition and results of operations. Agreement with Bank of America Until January 31, 2017, the Company had a flow agreement with Bank of America whereby the Company was committed to sell up to $300,000 of eligible loans to the bank each month. On October 27, 2016, Bank of America notified the Company that it was terminating the flow agreement effective January 31, 2017, and accordingly, the flow agreement is terminated. The Company retains servicing on all sold loans and may receive or pay a servicer performance payment based on an agreed-upon formula if performance on the sold loans is better or worse, respectively, than expected performance at time of sale. Servicer performance payments are due six years from the cut-off date of each loan sale. The Company had accrued $10,814 and $9,797 at March 31, 2017 and December 31, 2016 , respectively, related to this obligation. Agreement with CBP The Company has sold loans to CBP under terms of a flow agreement and predecessor sale agreements. The Company retains servicing on the sold loans and will owe CBP a loss-sharing payment capped at 0.5% of the original pool balance if losses exceed a specified threshold, established on a pool-by-pool basis. Loss-sharing payments are due the month in which net losses exceed the established threshold of each loan sale. On June 25, 2015, the Company and CBP amended the flow agreement to reduce, effective from and after August 1, 2015, CBP's committed purchases of Chrysler Capital prime loans from a maximum of $600,000 and a minimum of $250,000 per quarter to a maximum of $200,000 and a minimum of $50,000 per quarter, as may be adjusted according to the agreement. In January 2016, the Company executed an amendment to the servicing agreement with CBP which decreased the servicing fee the Company receives on loans sold to CBP by the Company under the flow agreement. On February 13, 2017, the Company and CBP entered into a mutual agreement to terminate the flow agreement effective May 1, 2017. The Company had accrued $4,612 and $4,563 at March 31, 2017 and December 31, 2016 , respectively, related to the loss-sharing obligation. Legal and regulatory proceedings Periodically, the Company is party to, or otherwise involved in, various lawsuits and other legal proceedings that arise in the ordinary course of business. In view of the inherent difficulty of predicting the outcome of any such lawsuit, regulatory matter and legal proceeding, particularly where the claimants seek very large or indeterminate damages or where the matters present novel legal theories or involve a large number of parties, the Company generally cannot predict the eventual outcome of the pending matters, the timing of the ultimate resolution of the matters, or the eventual loss, fines or penalties related to the matter. Accordingly, except as provided below, the Company is unable to reasonably estimate its potential exposure, if any, to these lawsuits, regulatory matters and other legal proceedings at this time. However, it is reasonably possible that actual outcomes or losses may differ materially from the Company's current assessments and estimates and any adverse resolution of any of these matters against it could have a material adverse effect on the Company's financial position, liquidity, and results of operation. In accordance with applicable accounting guidance, the Company establishes an accrued liability for litigation, regulatory matters and other legal proceedings when those matters present material loss contingencies that are both probable and estimable. In such cases, there may be an exposure to loss in excess of any amounts accrued. When a loss contingency is not both probable and estimable, the Company does not establish an accrued liability. As a litigation, regulatory matter or other legal proceeding develops, the Company, in conjunction with any outside counsel handling the matter, evaluates on an ongoing basis whether the matter presents a material loss contingency that is probable and estimable. If a determination is made during a given quarter that a material loss contingency is probable and estimable, an accrued liability is established during such quarter with respect to such loss contingency. The Company continues to monitor the matter for further developments that could affect the amount of the accrued liability previously established. As of March 31, 2017 , the Company has accrued aggregate legal and regulatory liabilities of $43,170 . Set forth below are descriptions of the material lawsuits, regulatory matters and other legal proceedings to which the Company is subject. On August 26, 2014, a purported securities class action lawsuit was filed in the United States District Court, Southern District of New York, captioned Steck v. Santander Consumer USA Holdings Inc. et al., No. 1:14-cv-06942 (the Deka Lawsuit). On October 6, 2014, another purported securities class action lawsuit was filed in the District Court of Dallas County, State of Texas, captioned Kumar v. Santander Consumer USA Holdings, et al., No. DC-14-11783, which was subsequently removed to the United States District Court, Northern District of Texas, and re-captioned Kumar v. Santander Consumer USA Holdings, et al., No. 3:14-CV-3746 (the Kumar Lawsuit). Both the Deka Lawsuit and the Kumar Lawsuit were brought against the Company, certain of its current and former directors and executive officers and certain institutions that served as underwriters in the Company's IPO on behalf of a class consisting of those who purchased or otherwise acquired our securities between January 23, 2014 and June 12, 2014. In February 2015, the Kumar Lawsuit was voluntarily dismissed with prejudice. In June 2015, the venue of the Deka Lawsuit was transferred to the United States District Court, Northern District of Texas. In September 2015, the court granted a motion to appoint lead plaintiffs and lead counsel, and the Deka Lawsuit is now captioned Deka Investment GmbH et al. v. Santander Consumer USA Holdings Inc. et al., No. 3:15-cv-2129-K. The amended class action complaint in the Deka Lawsuit alleges that our Registration Statement and Prospectus and certain subsequent public disclosures contained misleading statements concerning the Company’s ability to pay dividends and the adequacy of the Company’s compliance systems and oversight. The amended complaint asserts claims under Sections 11, 12(a) and 15 of the Securities Act of 1933 and under Sections 10(b) and 20(a) of the Exchange Act, and Rule 10b-5 promulgated thereunder, and seeks damages and other relief. On December 18, 2015, the Company and the individual defendants moved to dismiss the amended class action complaint, and on June 13, 2016, the motion to dismiss was denied. On December 2, 2016, the plaintiffs moved to certify the proposed classes, on February 17, 2017, the Company filed an opposition to the plaintiffs' motion to certify the proposed classes, and on March 31, 2017, the plaintiffs filed their reply brief. On October 15, 2015, a shareholder derivative complaint was filed in the Court of Chancery of the State of Delaware, captioned Feldman v. Jason A. Kulas, et al., C.A. No. 11614 (the Feldman Lawsuit). The Feldman Lawsuit names as defendants current and former members of the Board, and names the Company as a nominal defendant. The complaint alleges, among other things, that the current and former director defendants breached their fiduciary duties in connection with overseeing the Company’s subprime auto lending practices, resulting in harm to the Company. The complaint seeks unspecified damages and equitable relief. On December 29, 2015, the Feldman Lawsuit was stayed pending the resolution of the Deka Lawsuit. On March 18, 2016, a purported securities class action lawsuit was filed in the United States District Court, Northern District of Texas, captioned Parmelee v. Santander Consumer USA Holdings Inc. et al., No. 3:16-cv-783 (the Parmelee Lawsuit). On April 4, 2016, another purported securities class action lawsuit was filed in the United States District Court, Northern District of Texas, captioned Benson v. Santander Consumer USA Holdings Inc. et al., No. 3:16-cv-919 (the Benson Lawsuit). Both the Parmelee Lawsuit and the Benson Lawsuit were filed against the Company and certain of its current and former directors and executive officers on behalf of a class consisting of all those who purchased or otherwise acquired our securities between February 3, 2015 and March 15, 2016. On May 25, 2016, the Benson Lawsuit was consolidated into the Parmelee Lawsuit, with the consolidated case captioned as Parmelee v. Santander Consumer USA Holdings Inc. et al., No. 3:16-cv-783. On December 20, 2016, the plaintiffs filed an amended class action complaint. The amended class action complaint in the Parmelee Lawsuit alleges that the Company made false or misleading statements, as well as failed to disclose material adverse facts, in prior Annual and Quarterly Reports filed under the Exchange Act and certain other public disclosures, in connection with, among other things, the Company’s change in its methodology for estimating its allowance for credit losses and correction of such allowance for prior periods in, among other public disclosures, the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2016, and the Company’s amended filings for prior reporting periods. The amended class action complaint asserts claims under Sections 10(b) and 20(a) of the Exchange Act, and Rule 10b-5 promulgated thereunder, and seeks damages and other relief. On March 14, 2017, the Company filed a motion to dismiss the Parmelee Lawsuit. On September 27, 2016, a shareholder derivative complaint was filed in the Court of Chancery of the State of Delaware, captioned Jackie888, Inc. v. Jason Kulas, et al., C.A. # 12775 (the Jackie888 Lawsuit). The Jackie888 Lawsuit names as defendants current and former members of the Board, and names the Company as a nominal defendant. The complaint alleges, among other things, that the defendants breached their fiduciary duties in connection with the Company’s accounting practices and controls. The complaint seeks unspecified damages and equitable relief. The Company is also party to various lawsuits pending in federal and state courts alleging violations of state and federal consumer lending laws, including, without limitation, the Equal Credit Opportunity Act, the Fair Debt Collection Practices Act, Fair Credit Reporting Act, Section 5 of the Federal Trade Commission Act, the Telephone Consumer Protection Act, the Truth in Lending Act, wrongful repossession laws, usury laws and laws related to unfair and deceptive acts or practices. In general, these cases seek damages and equitable and/or other relief. The Company is party to, or is periodically otherwise involved in, reviews, investigations, examinations and proceedings (both formal and informal), and information-gathering requests, by government and self-regulatory agencies, including the FRBB, the CFPB, the DOJ, the SEC, the FTC and various state regulatory and enforcement agencies. Currently, such proceedings include, but are not limited to, a civil subpoena from the DOJ, under FIRREA, requesting the production of documents and communications that, among other things, relate to the underwriting and securitization of nonprime auto loans since 2007, and from the SEC requesting the production of documents and communications that, among other things, relate to the underwriting and securitization of nonprime auto loans since 2013. On March 21, 2017, the Company and SHUSA entered into a written agreement (the “2017 Written Agreement”) with the FRBB. Under the terms of the 2017 Written Agreement, the Company is required to enhance its compliance risk management program, board oversight of risk management and senior management oversight of risk management, and SHUSA is required to enhance its oversight of SC’s management and operations. In October 2014, May 2015, and July 2015 the Company received subpoenas and/or Civil Investigative Demands (CIDs) from the Attorneys General of California, Illinois, Oregon, New Jersey, Maryland and Washington under the authority of each state's consumer protection statutes. The Company has been informed that these states will serve as an executive committee on behalf of a group of 28 state Attorneys General. The subpoenas and/or CIDs from the executive committee states contain broad requests for information and the production of documents related to the Company's underwriting and securitization of nonprime auto loans. The Company believes that several other companies in the auto finance sector have received similar subpoenas and CIDs. The Company is cooperating with the Attorneys General of the states involved. The Company believes that it is reasonably possible that it will suffer a loss related to the Attorneys General, however, any such loss is not currently estimable. In August and September 2014, the Company also received civil subpoenas and/or CIDs from the Attorney General of Massachusetts (the Massachusetts AG) and Delaware Department of Justice (the Delaware DOJ) under the authority of each state’s consumer protection statutes requesting information and the production of documents related to our underwriting and securitizations of nonprime auto loans. On March 29, 2017, the Company entered into an Assurance of Discontinuance (AOD) with the Massachusetts AG and a Cease and Desist by Agreement (C&D) with the Delaware DOJ to settle allegations that it facilitated the origination of certain Massachusetts and Delaware loans that it knew - or should have known - were in violation of applicable state consumer protection laws. In the AOD, filed in the Superior Court of Suffolk County, State of Massachusetts, captioned In the Matter of Santander Consumer USA Holdings Inc., C.A. # 17-946E, the Company agreed to pay $16,300 to an independent trust for the benefit of eligible customers and $5,800 to the Commonwealth of Massachusetts. In the C&D, filed before the Consumer Protection Director of the Delaware Department of Justice, captioned In the Matter of Santander Consumer USA Holdings Inc., C.P.U. # 17-17-17001637, the Company agreed to pay $2,875 to an independent trust for the benefit of eligible customers and $1,025 to the State of Delaware. The Company also agreed to make certain changes to its business practices. Among other things, it agreed to enhance certain aspects of its dealer oversight and monitoring processes. On January 10, 2017, the Attorney General of the State of Mississippi (the Mississippi AG) filed a lawsuit against the Company in the Chancery Court of the First Judicial District of Hinds County, State of Mississippi, captioned State of Mississippi ex rel. Jim Hood, Attorney General of the State of Mississippi v. Santander Consumer USA Inc., C.A. # G-2017-28. The complaint alleges that the Company engaged in unfair and deceptive business practices to induce Mississippi consumers to apply for loans that they could not afford. The complaint asserts claims under the Mississippi Consumer Protection Act and seeks unspecified civil penalties, equitable relief and other relief. On March 31, 2017, the Company filed motions to dismiss the Mississippi AG’s lawsuit. On November 4, 2015, the Company entered into an AOD with the Massachusetts AG. The Massachusetts AG alleged that the Company violated the maximum permissible interest rates allowed under Massachusetts law due to the inclusion of GAP charges in the calculation of finance charges. Among other things, the AOD requires the Company, with respect to any loan that exceeded the maximum rates, to issue refunds of all finance charges paid to date and to waive all future finance charges. The AOD also requires the Company to undertake certain remedial measures, including ensuring that interest rates on its loans do not exceed maximum rates (when GAP charges are included) in the future, and provides that the Company pay $150 to the Massachusetts AG to reimburse its costs of implementing the AOD. On February 25, 2015, the Company entered into a consent order with the DOJ, approved by the United States District Court for the Northern District of Texas, that resolves the DOJ's claims against the Company that certain of its repossession and collection activities during the period of time between January 2008 and February 2013 violated the Servicemembers Civil Relief Act (SCRA). The consent order requires the Company to pay a civil fine in the amount of $55 , as well as at least $9,360 to affected servicemembers consisting of $10 per servicemember plus compensation for any lost equity (with interest) for each repossession by the Company, and $5 per servicemember for each instance where the Company sought to collect repossession-related fees on accounts where a repossession was conducted by a prior account holder. The consent order also provides for monitoring by the DOJ for the Company’s SCRA compliance for a period of five years and requires the Company to undertake certain additional remedial measures. On July 31, 2015, the CFPB notified the Company that it had referred to the DOJ certain alleged violations by the Company of the ECOA regarding statistical disparities in markups charged by automobile dealers to protected groups on loans originated by those dealers and purchased by the Company and the treatment of certain types of income in the Company’s underwriting process. On September 25, 2015, the DOJ notified the Company that it has initiated, based on the referral from the CFPB, an investigation under the ECOA of the Company's pricing of automobile loans. Other commitments and contingencies Agreements The Company is obligated to make purchase price holdback payments to a third party originator of auto loans that the Company has purchased, when losses are lower than originally expected. The Company also is obligated to make total return settlement payments to this third-party originator in 2017 if returns on the purchased loans are greater than originally expected. These obligations are accounted for as derivatives (Note 7). The Company has extended revolving lines of credit to certain auto dealers. Under this arrangement, the Company is committed to lend up to each dealer's established credit limit. At March 31, 2017 and December 31, 2016 , there was an outstanding balance under these lines of credit of $3,656 and $2,529 , respectively, and a committed amount under these lines of credit of $3,656 and $2,920 , respectively. The Company committed to purchase certain new advances on personal revolving financings originated by a third party retailer, along with existing balances on accounts with new advances, for an initial term ending in April 2020 and renewing through April 2022 at the retailer's option. Each customer account generated under the agreements generally is approved with a credit limit higher than the amount of the initial purchase, with each subsequent purchase automatically approved as long as it does not cause the account to exceed its limit and the customer is in good standing. As of March 31, 2017 and December 31, 2016 , the Company was obligated to purchase $11,281 and $12,634 , respectively, in receivables that had been originated by the retailer but not yet purchased by the Company. The Company also is required to make a profit-sharing payment to the retailer each month if performance exceeds a specified return threshold. During the year ended December 31, 2015, the Company and the third-party retailer executed an amendment that, among other provisions, increases the profit-sharing percentage retained by the Company, gives the retailer the right to repurchase up to 9.99% of the existing portfolio at any time during the term of the agreement, and, provided that repurchase right is exercised, gives the retailer the right to retain up to 20% of new accounts subsequently originated. Under terms of an application transfer agreement with another original equipment manufacturer (OEM), the Company has the first opportunity to review for its own portfolio any credit applications turned down by the OEM's captive finance company. The agreement does not require the Company to originate any loans, but for each loan originated the Company will pay the OEM a referral fee, comprised of a volume bonus fee and a loss betterment bonus fee. The loss betterment bonus fee will be calculated annually and is based on the amount by which losses on loans originated under the agreement are lower than an established percentage threshold. The Company also has agreements with SBNA to service recreational and marine vehicle portfolios. These agreements call for a periodic retroactive adjustment, based on cumulative return performance, of the servicing fee rate to inception of the contract. There were upward adjustments of zero and $836 for the three months ended March 31, 2017 and 2016, respectively. In connection with the sale of retail installment contracts through securitizations and other sales, the Company has made standard representations and warranties customary to the consumer finance industry. Violations of these representations and warranties may require the Company to repurchase loans previously sold to on- or off-balance sheet Trusts or other third parties. As of March 31, 2017 , there were no loans that were the subject of a demand to repurchase or replace for breach of representations and warranties for the Company's asset-backed securities or other sales. In the opinion of management, the potential exposure of other recourse obligations related to the Company’s retail installment contract sales agreements will not have a material adverse effect on the Company’s consolidated financial position, results of operations, or cash flows. Santander has provided guarantees on the covenants, agreements, and obligations of the Company under the governing documents of its warehouse lines and privately issued amortizing notes. These guarantees are limited to the obligations of the Company as servicer. The Company provided SBNA with the first right to review and approve consumer vehicle lease applications, subject to volume constraints, under terms of a flow agreement that was terminated on May 9, 2015. The Company has indemnified SBNA for potential credit and residual losses on $48,226 of leases that had been originated by SBNA under this program but were subsequently determined not to meet SBNA’s underwriting requirements. This indemnification agreement is supported by an equal amount of cash collateral posted by the Company in an SBNA bank account. The collateral account balance is included in restricted cash in the Company's condensed consolidated balance sheets. In January 2015, the Company additionally agreed to indemnify SBNA for residual losses, up to a cap, on certain leases originated under the flow agreement between September 24, 2014 and May 9, 2015 for which SBNA and the Company had differing residual value expectations at lease inception. On March 31, 2015, the Company executed a forward flow asset sale agreement with a third party under terms of which the Company committed to sell charged off loan receivables in bankruptcy status on a quarterly basis until sales total at least $200,000 in proceeds. On June 29, 2015, the Company and the third party executed an amendment to the forward flow asset sale agreement, which increased the committed sales of charged off loan receivables in bankruptcy status to $275,000 . On September 30, 2015, the Company and the third party executed a second amendment to the forward flow asset sale agreement, which required sales to occur quarterly. On November 13, 2015, the Company and the third party executed a third amendment to the forward flow asset sale agreement, which increased the committed sales of charged off loan receivables in bankruptcy status to $350,000 . However, any sale more than $275,000 is subject to a market price check. As of March 31, 2017 and December 31, 2016 , the remaining aggregate commitment was $152,054 and $166,167 , respectively. Employment Agreements Pursuant to the terms of a Separation Agreement among former CEO Thomas G. Dundon, the Company, DDFS LLC, SHUSA and Santander, upon satisfaction of applicable conditions, including receipt of required regulatory approvals, the Company will owe Mr. Dundon a cash payment of up to $115,139 (Note 11). Leases The Company has entered into various operating leases, primarily for office space and computer equipment. Lease expense incurred totaled $2,739 and $2,950 for the three months ended March 31, 2017 and 2016, respectively. The remaining obligations under lease commitments at March 31, 2017 are as follows: 2017 $ 11,858 2018 12,781 2019 12,866 2020 13,074 2021 12,691 Thereafter 53,690 Total $ 116,960

Related-Party Transactions

Related-Party Transactions	3 Months Ended
	Mar. 31, 2017
Related Party Transactions [Abstract]
Related-Party Transactions	Related-Party Transactions Related-party transactions not otherwise disclosed in these footnotes to the condensed consolidated financial statements include the following: Credit Facilities Interest expense, including unused fees, for affiliate lines/letters of credit for the three months ended March 31, 2017 and 2016 , was as follows: Three Months Ended March 31, 2017 March 31, 2016 Line of credit agreement with Santander - New York Branch (Note 5) $ 22,976 $ 20,273 Line of credit agreement with SHUSA (Note 5) 12,634 2,864 Accrued interest for affiliate lines/letters of credit at March 31, 2017 and December 31, 2016 , was as follows: March 31, December 31, 2016 Line of credit agreement with Santander - New York Branch (Note 5) $ 7,569 $ 6,297 Line of credit agreement with SHUSA (Note 5) 5,095 1,737 In August 2015, under an agreement with Santander, the Company agreed to begin incurring a fee of 12.5 basis points (per annum) on certain warehouse lines, as they renew, for which Santander provides a guarantee of the Company's servicing obligations. The Company recognized guarantee fee expense of $1,465 and $1,578 for the three months ended March 31, 2017 and 2016, respectively. As of March 31, 2017 and December 31, 2016 , the Company had $3,085 and $1,620 of related fees payable to Santander, respectively. Derivatives The Company has derivative financial instruments with Santander and affiliates with outstanding notional amounts of $5,936,700 and $7,259,400 at March 31, 2017 and December 31, 2016 , respectively (Note 7). The Company had a collateral overage on derivative liabilities with Santander and affiliates of $10,637 and $15,092 at March 31, 2017 and December 31, 2016 , respectively. Interest expense and mark-to-market adjustments on these agreements totaled $29 and $10,150 for the three months ended March 31, 2017 and 2016 , respectively. Originations The Company is required to permit SBNA a first right to review and assess Chrysler Capital dealer lending opportunities, and SBNA is required to pay the Company a relationship management fee based upon the performance and yields of Chrysler Capital dealer loans held by SBNA. On April 15, 2016, the relationship management fee was replaced with an origination fee and annual renewal fee for each loan. The Company recognized $1,279 of relationship management fee income for the three months ended March 31, 2016 and recognized $600 and $306 of origination and renewal fee income, respectively, for the three months ended March 31, 2017 . As of March 31, 2017 and December 31, 2016 , the Company had origination and renewal fees receivable from SBNA of $320 and $552 . The agreement also transferred the servicing of all Chrysler Capital receivables from dealers, including receivables held by SBNA and by the Company, from the Company to SBNA. Servicing fee expense under this agreement totaled $30 for the three months ended March 31, 2017 . As of March 31, 2017 and December 31, 2016 , the Company had $13 and $21 , respectively, of servicing fees payable to SBNA. The Company may provide advance funding for dealer loans originated by SBNA, which is reimbursed to the Company by SBNA. The Company had no outstanding receivable from SBNA as of March 31, 2017 or December 31, 2016 for such advances. Under the agreement with SBNA, the Company may originate retail consumer loans in connection with sales of vehicles that are collateral held against floorplan loans by SBNA. Upon origination, the Company remits payment to SBNA, who settles the transaction with the dealer. The Company owed SBNA $2,698 and $2,761 related to such originations as of March 31, 2017 and December 31, 2016 , respectively. The Company received a $9,000 referral fee in connection with the original arrangement and was amortizing the fee into income over the ten -year term of the agreement. The remaining balance of the referral fee SBNA paid to the Company in connection with the original sourcing and servicing agreement is considered a referral fee in connection with the new agreements and will continue to be amortized into income through the July 1, 2022 termination date of the new agreements. As of March 31, 2017 and December 31, 2016 , the unamortized fee balance was $5,625 and $5,850 , respectively. The Company recognized $225 of income related to the referral fee for the three months ended March 31, 2017 and 2016 . The Company also has agreements with SBNA to service auto retail installment contracts and recreational and marine vehicle portfolios. Servicing fee income recognized under these agreements totaled $925 and $2,108 for the three months ended March 31, 2017 and 2016 , respectively. Other information on the serviced auto loan and retail installment contract portfolios for SBNA as of March 31, 2017 and December 31, 2016 is as follows: March 31, December 31, Total serviced portfolio $ 495,885 $ 531,117 Cash collections due to owner 20,980 21,427 Servicing fees receivable 1,060 1,123 Beginning in 2016, the Company agreed to pay SBNA a market rate-based fee expense for payments made at SBNA retail branch locations for accounts originated/serviced by the Company and the costs associated with modifying the Advanced Teller platform to the payments. The Company incurred $40 for these services during the three months ended March 31, 2017 . As of March 31, 2017 , the Company owed SBNA $197 related to these service obligations. Flow Agreements Until May 9, 2015, the Company was party to a flow agreement with SBNA whereby SBNA had the first right to review and approve Chrysler Capital consumer vehicle lease applications. The Company could review any applications declined by SBNA for the Company’s own portfolio. The Company received an origination fee on all leases originated under this agreement and continues to service these vehicles leases. Pursuant to the Chrysler Agreement, the Company pays FCA on behalf of SBNA for residual gains and losses on the flowed leases. Servicing fee income recognized on leases serviced for SBNA totaled $1,393 and $1,549 for the three months ended March 31, 2017 and 2016 , respectively. Other information on the consumer vehicle lease portfolio serviced for SBNA as of March 31, 2017 and December 31, 2016 is as follows: March 31, December 31, Total serviced portfolio $ 926,377 $ 1,297,317 Cash collections due to owner 303 78 Origination and servicing fees receivable 645 926 Revenue share reimbursement receivable 813 612 On June 30, 2014, the Company entered into an indemnification agreement with SBNA whereby the Company indemnifies SBNA for any credit or residual losses on a pool of $48,226 in leases originated under the flow agreement. The covered leases are non-conforming units because they did not meet SBNA’s credit criteria at origination. At the time of the agreement, the Company established a $48,226 collateral account with SBNA in restricted cash that will be released over time to SBNA, in the case of losses, and the Company, in the case of payments and sale proceeds. As of March 31, 2017 and December 31, 2016 , the balance in the collateral account was $7,513 and $11,329 , respectively. The Company recognized no indemnification expense for the three months ended March 31, 2017 , and 2016 . As of March 31, 2017 and December 31, 2016 , the Company had a recorded liability of $2,691 related to the residual losses covered under the agreement. Securitizations On March 29, 2017, the Company entered into a Master Securities Purchase Agreement (“MSPA”) with Santander, whereby it has the option to sell a contractually determined amount of eligible prime loans to Santander, through the SPAIN securitization platform, for a term ending in December 2018. The Company will provide servicing on all loans originated under this arrangement. For the three months ended March 31, 2017, the Company sold $700 million of loans under this agreement and recognized a loss of $2.7 million which is included in investment losses in the accompanying condensed consolidated financial statements. The Company had $37,467 of collections due to Santander as of March 31, 2017. Employment Agreements On July 2, 2015, the Company announced the departure of Thomas G. Dundon from his roles as Chairman of the Board and CEO of the Company, effective as of the close of business on July 2, 2015. In connection with his departure, and subject to the terms and conditions of his Employment Agreement, including Mr. Dundon's execution of a release of claims against the Company, Mr. Dundon became entitled to receive certain payments and benefits under his Employment Agreement. Also in connection with his departure, Mr. Dundon entered into a Separation Agreement with the Company, DDFS LLC, SHUSA and Santander. Subject to applicable regulatory approvals and law, the Separation Agreement provided, among other things, that Mr. Dundon’s outstanding stock options would remain exercisable until the third anniversary of his resignation, and subject to certain time limitations, Mr. Dundon would be permitted to exercise such options in whole, but not in part, and settle such options for a cash payment equal to the difference between the closing trading price of a share of Company common stock as of the date immediately preceding such exercise and the exercise price of such option. Mr. Dundon exercised this cash settlement option on July 2, 2015. The Separation Agreement also provided for the modification of terms for certain other equity-based awards (Note 14), subject to limitations of banking regulators and applicable law. The Separation Agreement also provided that Mr. Dundon would serve as a consultant to the Company for twelve months from the date of the Separation Agreement at a mutually agreed rate, subject to required regulatory approvals. As of March 31, 2017 , the Company has not made any payments to Mr. Dundon, nor recorded any liability or obligation arising from or pursuant to the terms of the Separation Agreement. If all applicable conditions are satisfied, including receipt of required regulatory approvals and satisfaction of any conditions thereto, the Company will be obligated to make a cash payment to Mr. Dundon of up to $115,139 . This amount would be recorded as compensation expense in the condensed consolidated statement of income and comprehensive income in the period in which approval is obtained. Also, in connection with, and pursuant to, the Separation Agreement, on July 2, 2015, Mr. Dundon, the Company, DDFS LLC, SHUSA and Santander entered into an amendment to the Shareholders Agreement (the Second Amendment). The Second Amendment amended, for purposes of calculating the price per share to be paid in the event that a put or call option was exercised with respect to the shares of Company Common Stock owned by DDFS LLC in accordance with the terms and conditions of the Shareholders Agreement, the definition of the term “Average Stock Price” to mean $26.83 . Pursuant to the Separation Agreement, SHUSA was deemed to have delivered as of July 3, 2015 an irrevocable notice to exercise the call option with respect to all 34,598,506 shares of the Company's Common Stock owned by DDFS LLC and consummate the transactions contemplated by such call option notice, subject to the receipt of required bank regulatory approvals and any other approvals required by law (the "Call Transaction"). Because the Call Transaction was not consummated prior to the Call End Date, DDFS LLC is free to transfer any or all shares of Company Common Stock it owns, subject to the terms and conditions of the Amended and Restated Loan Agreement, dated as of July 16, 2014, between DDFS LLC and Santander (the Loan Agreement). The Loan Agreement provides for a $300,000 revolving loan which as of March 31, 2017 and December 31, 2016 had an unpaid principal balance of $290,000 and $290,000 , respectively. Pursuant to the Loan Agreement, 29,598,506 shares of the Company’s common stock owned by DDFS LLC are pledged as collateral under a related pledge agreement (the Pledge Agreement). Because the Call Transaction was not completed on or before the Call End Date, interest began accruing on the price paid per share in the Call Transaction at the overnight LIBOR rate on the third business day preceding the consummation of the Call Transaction plus 100 basis points with respect to any shares of Company Common Stock ultimately sold in the Call Transaction. The Shareholder Agreement further provides that Santander may, at its option, become the direct beneficiary of the Call Option. If consummated in full, SHUSA would pay DDFS LLC $928,278 plus interest that has accrued since the Call End Date. To date, the Call Transaction has not been consummated. Pursuant to the Loan Agreement, if at any time the value of the Common Stock pledged under the Pledge Agreement is less than 150% of the aggregate principal amount outstanding under the Loan Agreement, DDFS LLC has an obligation to either (a) repay a portion of such outstanding principal amount such that the value of the pledged collateral is equal to at least 200% of the outstanding principal amount, or (b) pledge additional shares of Company Common Stock such that the value of the additional shares of Common Stock, together with the 29,598,506 shares already pledged under the Pledge Agreement, is equal to at least 200% of the outstanding principal amount. The value of the pledged collateral is less than 150% of aggregate principal amount outstanding under the Loan Agreement, and DDFS LLC has not taken any of the collateral posting actions described in clauses (a) or (b) above. If Santander declares the borrower’s obligations under the Loan Agreement due and payable as a result of an event of default (including with respect to the collateral posting obligations described above), under the terms of the Loan Agreement and the Pledge Agreement, Santander’s ability to rely upon the shares of SC Common Stock subject to the Pledge Agreement is, subject to certain exceptions, limited to the exercise by SHUSA and/or Santander of the right to deliver the call option notice and to consummate the Call Transaction at the price specified in the Shareholders Agreement. If the borrower fails to pay obligations under the Loan Agreement when due, including because of Santander’s declaration of such obligations as due and payable as a result of an event of default, a higher default interest rate will apply to such overdue amounts. In connection with, and pursuant to, the Separation Agreement, on July 2, 2015, DDFS LLC and Santander entered into an amendment to the Loan Agreement and an amendment to the Pledge Agreement that provide, among other things, that outstanding balance under the Loan Agreement shall become due and payable upon the consummation of the Call Transaction and that the amount otherwise payable to DDFS LLC under the Call Transaction shall be reduced by the amount outstanding under the Loan Agreement, including principal, interest and fees, and further that any net cash proceeds received by DDFS LLC on account of sales of Company Common Stock after the Call End Date shall be applied to the outstanding balance under the Loan Agreement. On August 31, 2016, Mr. Dundon, DDFS LLC, the Company, Santander and SHUSA entered into a Second Amendment to the Separation Agreement, and Mr. Dundon, DDFS LLC, Santander and SHUSA entered into a Third Amendment to the Shareholders Agreement, whereby the price per share to be paid to DDFS LLC in connection with the Call Transaction was reduced from $26.83 to $26.17 , the arithmetic mean of the daily volume-weighted average price for a share of Company common stock for each of the ten consecutive complete trading days immediately prior to July 2, 2015, the date on which the call option was exercised. On April 17, 2017, the Loan Agreement matured and became due and payable with an unpaid principal balance of approximately $290,000 as of that date. Because the borrower failed to pay obligations under the Loan Agreement on April 17, 2017, the borrower is in default and is currently being charged the default interest rate as defined by the Loan Agreement. The Loan Agreement generally defines the default interest rate as the Base Rate plus 2% . The Base Rate as defined in the Loan Agreement is the higher of (i) the federal funds rate plus ½ of 1% or (ii) the prime rate, which is the annual rate of interest publicly announced by the New York Branch of Santander from time to time. As of April 21, 2017, the prime rate as announced by the New York Branch of Santander was 4% . Other related-party transactions As of March 31, 2017 , Jason Kulas, a director of the Company and the Company's current CEO, Mr. Dundon, and a Santander employee who was a member of the Board until the second quarter of 2015, each had a minority equity investment in a property in which the Company leases 373,000 square feet as its corporate headquarters. For the three months ended March 31, 2017 and 2016 , the Company recorded $1,275 and $1,266 , respectively, in lease expenses on this property. The Company subleases approximately 13,000 square feet of its corporate office space to SBNA. For the three months ended March 31, 2017 and 2016 , the Company recorded $41 in sublease revenue on this property. Future minimum lease payments over the remainder of the 12 -year term of the lease, which extends through 2026, total $67,386 . The Company's wholly-owned subsidiary, Santander Consumer International Puerto Rico, LLC (SCI), opened deposit accounts with Banco Santander Puerto Rico, an affiliated entity. As of March 31, 2017 and December 31, 2016 , SCI had cash of $93,013 and $98,836 , respectively, on deposit with Banco Santander Puerto Rico. During 2015, Santander Investment Securities Inc. (SIS), an affiliated entity, purchased an investment of $2,000 in the Class A3 notes of CCART 2013-A, a securitization Trust formed by the Company in 2013. Although CCART 2013-A is not a consolidated entity of the Company, the Company continues to service the assets of the associated trust. SIS also serves as co-manager on certain of the Company’s securitizations. Amounts paid to SIS as co-manager for the three months ended March 31, 2017 and 2016 , totaled $150 and $100 , respectively, and are included in debt issuance costs in the accompanying condensed consolidated financial statements. Produban Servicios Informaticos Generales S.L., a Santander affiliate, is under contract with the Company to provide professional services, telecommunications, and internal and/or external applications. Expenses incurred, which are included as a component of other operating costs in the accompanying consolidated statements of income, totaled $21 and $24 for the three months ended March 31, 2017 and 2016 , respectively. The Company is party to an MSA with a company in which it has a cost method investment and holds a warrant to increase its ownership if certain vesting conditions are satisfied. This cost method investment was carried at a value of zero in the Company's condensed consolidated balance sheets as of March 31, 2017, as it had been fully impaired. The MSA enables the Company to review point-of-sale credit applications of retail store customers. During the three months ending March 31, 2016, the Company did not originate any loans under the MSA and effective August 17, 2016, the Company ceased funding new originations from all of the retailers for which it reviews credit applications under this MSA. Beginning in 2017, the Company and SBNA entered into a Credit Card Agreement (Card Agreement) whereby SBNA will provide credit card services for travel and related business expenses and for vendor payments. This service is at zero cost but generate rebates based on purchases made. As at March 31, 2017, the activities associated with the program were de minimis.

Computation of Basic and Dilute

Computation of Basic and Diluted Earnings per Common Share	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings per Common Share	Computation of Basic and Diluted Earnings per Common Share Earnings per common share (EPS) is computed using the two-class method required for participating securities. Restricted stock awards whereby the holders of such shares have non-forfeitable dividend rights in the event of a declaration of a dividend on the Company’s common shares are considered to be participating securities. The calculation of diluted EPS excludes 973,230 and 1,504,790 employee stock option awards for the three months ended March 31, 2017 and 2016 , respectively, as the effect of those securities would be anti-dilutive. The following table represents EPS numbers for the three months ended March 31, 2017 and 2016 : Three Months Ended 2017 2016 Earnings per common share Net income $ 143,427 $ 208,299 Weighted average number of common shares outstanding before restricted participating shares (in thousands) 358,939 357,625 Weighted average number of participating restricted common shares outstanding (in thousands) 166 350 Weighted average number of common shares outstanding (in thousands) 359,105 357,975 Earnings per common share $ 0.40 $ 0.58 Earnings per common share - assuming dilution Net income $ 143,427 $ 208,299 Weighted average number of common shares outstanding (in thousands) 359,105 357,975 Effect of employee stock-based awards (in thousands) 1,511 865 Weighted average number of common shares outstanding - assuming dilution (in thousands) 360,616 358,840 Earnings per common share - assuming dilution $ 0.40 $ 0.58

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value measurement requires that valuation techniques maximize the use of observable inputs and minimize the use of unobservable inputs and also establishes a fair value hierarchy that categorizes into three levels the inputs to valuation techniques used to measure fair value as follows: Level 1 inputs are quoted prices in active markets for identical assets or liabilities that can be accessed as of the measurement date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis. Level 2 inputs are those other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. Level 3 inputs are those that are unobservable for the asset or liability and are used to measure fair value to the extent relevant observable inputs are not available. Financial Instruments Disclosed, But Not Carried, At Fair Value The following tables present the carrying value and estimated fair value of the Company’s financial assets and liabilities disclosed, but not carried, at fair value at March 31, 2017 and December 31, 2016 , and the level within the fair value hierarchy: March 31, 2017 Carrying Estimated Level 1 Level 2 Level 3 Assets: Cash and cash equivalents (a) $ 420,826 $ 420,826 $ 420,826 $ — $ — Finance receivables held for investment, net (b) 23,413,973 24,585,906 — — 24,585,906 Restricted cash (a) 2,946,736 2,946,736 2,946,736 — — Total $ 26,781,535 $ 27,953,468 $ 3,367,562 $ — $ 24,585,906 Liabilities: Notes payable — credit facilities (c) $ 4,958,638 $ 4,958,638 $ — $ — $ 4,958,638 Notes payable — secured structured financings (d) 23,666,666 23,814,779 — 14,927,192 8,887,587 Notes payable — related party (e) 2,850,000 2,850,000 — — 2,850,000 Total $ 31,475,304 $ 31,623,417 $ — $ 14,927,192 $ 16,696,225 December 31, 2016 Carrying Estimated Level 1 Level 2 Level 3 Assets: Cash and cash equivalents (a) $ 160,180 $ 160,180 $ 160,180 $ — $ — Finance receivables held for investment, net (b) 23,456,506 24,630,599 — — 24,630,599 Restricted cash (a) 2,757,299 2,757,299 2,757,299 — — Total $ 26,373,985 $ 27,548,078 $ 2,917,479 $ — $ 24,630,599 Liabilities: Notes payable — credit facilities (c) $ 6,739,817 $ 6,739,817 $ — $ — $ 6,739,817 Notes payable — secured structured financings (d) 21,608,889 21,712,691 — 13,530,045 8,182,646 Notes payable — related party (e) 2,975,000 2,975,000 — — 2,975,000 Total $ 31,323,706 $ 31,427,508 $ — $ 13,530,045 $ 17,897,463 (a) Cash and cash equivalents and restricted cash — The carrying amount of cash and cash equivalents, including restricted cash, is at an approximated fair value as the instruments mature within 90 days or less and bear interest at market rates. (b) Finance receivables held for investment, net — Finance receivables held for investment, net are carried at amortized cost, net of an allowance. The estimated fair value for the underlying financial instruments are determined as follows: • Retail installment contracts held for investment, net — The estimated fair value is calculated based on a DCF in which the Company uses significant unobservable inputs on key assumptions, including historical default rates and adjustments to reflect prepayment rates, expected recovery rates, discount rates reflective of the cost of funding, and credit loss expectations. • Receivables from dealers held for investment and Capital lease receivables, net — Receivables from dealers held for investment are carried at amortized cost, net of credit loss allowance. Capital lease receivables are carried at gross investment, net of unearned income and allowance for lease losses. Management believes that the terms of these credit agreements approximate market terms for similar credit agreements. (c) Notes payable — credit facilities — The carrying amount of notes payable related to revolving credit facilities is estimated to approximate fair value. Management believes that the terms of these credit agreements approximate market terms for similar credit agreements as the facilities are subject to short-term floating interest rates that approximate rates available to the Company. (d) Notes payable — secured structured financings — The estimated fair value of notes payable related to secured structured financings is calculated based on market observable prices and spreads for the Company's publicly traded debt and market observed prices of similar notes issued by the Company, or recent market transactions involving similar debt with similar credit risks, which are considered level 2 inputs. The estimated fair value of notes payable related to privately issued amortizing notes is calculated based on a combination of discounted cash flow analysis and market observable spreads for similar liabilities in which the Company uses significant unobservable inputs on key assumptions, including historical default rates and adjustments to reflect prepayment rates, discount rates reflective of the cost of funding, and credit loss expectations, which are considered level 3 inputs. (e) Notes payable — related party — The carrying amount of notes payable to a related party is estimated to approximate fair value as the facilities are subject to short-term floating interest rates that approximate rates available to the Company. Financial Instruments Measured At Fair Value On A Recurring Basis The following tables present the Company’s assets and liabilities that are measured at fair value on a recurring basis at March 31, 2017 and December 31, 2016 , and the level within the fair value hierarchy: Fair Value Measurements at March 31, 2017 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other assets — trading interest rate caps (a) $ 96,813 $ — $ 96,813 $ — Due from affiliates — trading interest rate caps (a) 7,812 — 7,812 — Other assets — cash flow hedging interest rate swaps (a) 50,535 — 50,535 — Due from affiliates — cash flow hedging interest rate swaps (a) 6,330 — 6,330 — Other assets — trading interest rate swaps (a) 1,422 — 1,422 — Due from affiliates — trading interest rate swaps (a) 1,864 — 1,864 — Other liabilities — trading options for interest rate caps (a) 96,880 — 96,880 — Due to affiliates — trading options for interest rate caps (a) 7,812 — 7,812 — Other liabilities — cash flow hedging interest rate swaps (a) 220 — 220 — Due to affiliates — cash flow hedging interest rate swaps (a) 74 — 74 — Other liabilities — trading interest rate swaps (a) 14 — 14 — Due to affiliates — trading interest rate swaps (a) 13 — 13 — Other liabilities — total return settlement (a,b) 31,123 — — 31,123 Retail installment contracts acquired individually (c) 30,652 — — 30,652 Fair Value Measurements at December 31, 2016 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other assets — trading interest rate caps (a) $ 68,676 $ — $ 68,676 $ — Due from affiliates — trading interest rate caps (a) 7,593 — 7,593 — Other assets — cash flow hedging interest rate swaps (a) 41,471 — 41,471 — Due from affiliates — cash flow hedging interest rate swaps (a) 4,080 — 4,080 — Other assets — trading interest rate swaps (a) 783 — 783 — Due from affiliates — trading interest rate swaps (a) 1,292 — 1,292 — Other liabilities — trading options for interest rate caps (a) 68,688 — 68,688 — Due to affiliates — trading options for interest rate caps (a) 7,593 — 7,593 — Other liabilities — cash flow hedging interest rate swaps (a) 482 — 482 — Due to affiliates — cash flow hedging interest rate swaps (a) 451 — 451 — Other liabilities — trading interest rate swaps (a) 42 — 42 — Due to affiliates — trading interest rate swaps (a) 95 — 95 — Other liabilities — total return settlement (a,b) 30,618 — — 30,618 Retail installment contracts acquired individually (c) 24,495 — — 24,495 (a) The valuation is determined using widely accepted valuation techniques including a DCF on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivative, including the period to maturity, and uses observable market-based inputs. The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurement of its derivatives. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings and guarantees. The Company utilizes the exception in ASC 820-10-35-18D (commonly referred to as the “portfolio exception”) with respect to measuring counterparty credit risk for instruments (Note 7). (b) The significant unobservable inputs for total return settlement derivative contracts used in the fair value measurement of the Company's liabilities are discount percentages, which are based on comparable financial instruments. (c) For certain retail installment contracts reported in finance receivables held for investment, net, the Company has elected the fair value option. The fair values of the retail installment contracts are estimated using a DCF model. When estimating the fair value using this model, the Company uses significant unobservable inputs on key assumptions, which includes historical default rates and adjustments to reflect prepayment rates based on available data from a comparable market securitization of similar assets, discount rates reflective of the cost of funding of debt issuance and recent historical equity yields, and recovery rates based on the average severity utilizing reported severity rates and loss severity utilizing available market data from a comparable securitized pool. Accordingly, retail installment contracts held for investment are classified as Level 3. Changes in the fair value are recorded in investment gains (losses), net in the condensed consolidated statement of income. The following table presents the changes in retail installment contracts held for investment balances classified as Level 3 balances for the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 2016 Balance — beginning of period $ 24,495 $ 6,770 Additions / issuances 13,331 — Net collection activities (10,113 ) (3,924 ) Transfers to held for sale (12 ) — Gains recognized in earnings 2,951 1,293 Balance — end of period $ 30,652 $ 4,139 The following table presents the changes in the total return settlement balance, which is classified as Level 3, for the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 2016 Balance — beginning of period $ 30,618 $ 53,432 Losses recognized in earnings 505 1,316 Settlements — (955 ) Balance — end of period $ 31,123 $ 53,793 The Company did not have any transfers between Levels 1 and 2 during the three months ended March 31, 2017 and 2016 . There were no amounts transferred into or out of Level 3 during the three months ended and March 31, 2017 and 2016 . Financial Instruments Measured At Fair Value On A Nonrecurring Basis The following table presents the Company’s assets that are measured at fair value on a nonrecurring basis at March 31, 2017 and December 31, 2016 , and the level within the fair value hierarchy: Fair Value Measurements at March 31, 2017 Total Quoted Prices Significant Significant Lower of cost or fair value expense Other assets — vehicles (a) $ 314,960 $ — $ 314,960 $ — $ — Personal loans held for sale (b) $ 979,103 $ — $ — $ 979,103 $ 64,639 Retail installment contracts held for sale (c) $ 876,916 $ — $ — $ 876,916 $ 1,482 Auto loans impaired due to bankruptcy (d) $ 54,929 $ — $ 54,929 $ — $ 23,600 Fair Value Measurements at December 31, 2016 Total Quoted Prices Significant Significant Lower of cost or fair value expense Other assets — vehicles (a) $ 257,382 $ — $ 257,382 $ — $ — Personal loans held for sale (b) $ 1,077,600 $ — $ — $ 1,077,600 $ 414,703 Retail installment contracts held for sale (c) $ 1,045,815 $ — $ — $ 1,045,815 $ 8,913 (a) The Company estimates the fair value of its vehicles, which are obtained either through repossession or lease termination, using historical auction rates and current market levels of used car prices. (b) Represents the portion of the portfolio specifically impaired as of period-end. The estimated fair value for personal loans held for sale is calculated based on a combination of estimated cash flows and market rates for similar loans with similar credit risks and a DCF analysis in which the Company uses significant unobservable inputs on key assumptions, including historical default rates and adjustments to reflect prepayment rates, discount rates reflective of the cost of funding, and credit loss expectations. The lower of cost or fair value adjustment for personal loans held for sale includes customer default activity and adjustments related to the net change in the portfolio balance during the reporting period. (c) The estimated fair value is calculated based on a DCF analysis in which the Company uses significant unobservable inputs on key assumptions, including expected default rates, prepayment rates, recovery rates, and discount rates reflective of the cost of funds and appropriate rate of returns. (d) For loans that are considered collateral-dependent, such as certain bankruptcy loans, impairment is measured based on the fair value of the collateral, less its estimated cost to sell. For the underlying collateral, the estimated fair value is obtained using historical auction rates and current market levels of used car prices.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Benefit Plans	Employee Benefit Plans The Company has granted stock options to certain executives, other employees, and independent directors under the 2011 Management Equity Plan (the Plan), which enabled the Company to make stock awards up to a total of approximately 29 million common shares (net of shares canceled and forfeited), and expired on January 31, 2015. The Company has granted stock options, restricted stock awards and restricted stock units (RSUs) under the Omnibus Incentive Plan, which was established in 2013 and enables the Company to grant awards of cash and of non-qualified and incentive stock options, stock appreciation rights, restricted stock awards, RSUs, and other awards that may be settled in or based upon the value of the Company's common stock up to a total of 5,192,640 common shares. The Omnibus Incentive Plan was amended and restated as of June 16, 2016. Stock options granted have an exercise price based on the estimated fair market value of the Company’s common stock on the grant date. The stock options expire ten years after grant date and include both time vesting options and performance vesting options. The fair value of the stock options is amortized into income over the vesting period as time and performance vesting conditions are met. Compensation expense related to the 583,890 shares of restricted stock the Company has issued to certain executives is recognized over a five -year vesting period, with $178 and $858 recorded for the three months ended March 31, 2017 and 2016 , respectively. A summary of the Company’s stock options and related activity as of and for the three months ended March 31, 2017 is as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Options outstanding at January 1, 2017 4,295,830 $ 12.70 5.6 $ 12,982 Granted — — — — Exercised (263,703 ) 9.38 — 1,202 Expired (60,768 ) 9.63 — — Forfeited (443,617 ) 10.05 — — Options outstanding at March 31, 2017 (a) 3,527,742 13.34 5.5 — Options exercisable at March 31, 2017 2,953,556 $ 11.59 5.1 $ 5,122 (a) The stock options outstanding at March 31, 2017 had aggregate intrinsic values of zero as the aggregate exercise price was greater than the aggregate market value. In connection with compensation restrictions imposed on certain executive officers and other employees by the European Central Bank under the Capital Requirements Directive IV prudential rules, which require a portion of such officers' and employees' variable compensation to be paid in the form of equity, the Company periodically grants RSUs. Such RSUs were granted during the three months ended March 31, 2017 . Under the Company's Omnibus Incentive Plan, a portion of these RSUs vest immediately upon grant, and a portion vest annually over the following three or five years . The Company also has granted certain officers RSUs that vest over either a three or five year period, with vesting dependent on Banco Santander performance over that time. After the shares subject to the RSUs vest and are settled, they are subject to transfer and sale restrictions for one year . The Company also has granted certain directors RSUs that vest either upon the earlier of the first anniversary of grant date or the first annual meeting following the grant date. On July 2, 2015, Mr. Dundon exercised a right under the Separation Agreement to settle his vested options for a cash payment. Subject to limitations of banking regulators and applicable law, Mr. Dundon’s Separation Agreement also provided that his unvested stock options would vest in full and his unvested restricted stock awards would continue to vest in accordance with their terms as if he remained employed by the Company. In addition, any service-based vesting requirements that were applicable to Mr. Dundon’s outstanding RSUs in respect of his 2014 annual bonus were waived, and such RSUs continue to vest and be settled in accordance with the underlying award agreement. However, because the Separation Agreement did not receive the required regulatory approvals within 60 days of Mr. Dundon’s termination without cause, both the vested and unvested stock options are considered to have expired.

Shareholders' Equity

Shareholders' Equity	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Shareholders' Equity	Shareholders' Equity Treasury Stock The Company had 94,595 shares of treasury stock outstanding, with a cost of $1,600 , as of March 31, 2017 and December 31, 2016 . Prior to the IPO, the Company repurchased 3,154 shares as a result of an employee leaving the Company. Additionally, 91,441 shares were withheld to cover income taxes related to the vesting of RSUs awarded to certain executive officers. The value of the treasury stock is immaterial and included within additional paid-in-capital. Accumulated Other Comprehensive Income (Loss) A summary of changes in accumulated other comprehensive income (loss), net of tax, for the three months ended March 31, 2017 and 2016 is as follows: Three Months Ended March 31, 2017 March 31, 2016 Beginning balance, unrealized gains (losses) on cash flow hedges $ 28,259 $ 2,125 Other comprehensive income (loss) before reclassifications 9,900 (45,762 ) Amounts reclassified out of accumulated other comprehensive income (loss) (a) (2,655 ) 7,572 Ending balance, unrealized losses on cash flow hedges $ 35,504 $ (36,065 ) (a) Amounts reclassified out of accumulated other comprehensive income (loss) during the three months ended March 31, 2017 and 2016 consist of the following: Three Months Ended March 31, 2017 Three Months Ended March 31, 2016 Reclassification Amount reclassified Income statement line item Amount reclassified Income statement line item Cash flow hedges: Settlements of derivatives $ (4,240 ) Interest expense $ 12,082 Interest expense Tax expense (benefit) 1,585 (4,510 ) Net of tax $ (2,655 ) $ 7,572 Dividend Restrictions The Company is restricted from declaring or paying any future dividends, or making any capital distribution, until such time as the FRBB issues a written non-objection to a revised capital plan submitted by SHUSA or the FRBB otherwise issues its written non-objection to the payment of a dividend by the Company. For a more detailed description of these dividend restrictions, refer to the 2016 Annual Report on Form 10-K under Item 1 - Business - Dividend Restrictions.

Investment Losses, Net

Investment Losses, Net	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Investment Losses, Net	Investment Losses, Net When the Company sells individually acquired retail installment contracts, personal loans or leases, the Company recognizes a gain or loss for the difference between the cash proceeds and carrying value of the assets sold. The gain or loss is recorded in investment gains (losses), net. Lower of cost or market adjustments on the recorded investment of finance receivables held for sale are also recorded in investment gains (losses), net. Investment losses, net was comprised of the following for the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 March 31, 2016 Gain (loss) on sale of loans and leases $ (10,882 ) $ 1,608 Lower of cost or market adjustments (66,121 ) (64,213 ) Other gains, losses and impairments, net 604 (6,451 ) $ (76,399 ) $ (69,056 ) The lower of cost or market adjustments for the three months ended March 31, 2017 and 2016 included $116,641 and $101,347 in customer default activity, respectively, and net favorable adjustments of $50,520 and $37,134 , respectively, primarily related to net changes in the unpaid principal balance on the personal lending portfolio, most of which has been classified as held for sale since September 30, 2015.

Description of Business, Basi24

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices (Policies)	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of the Company and its subsidiaries, including certain Trusts, which are considered variable interest entities (VIEs). The Company also consolidates other VIEs for which it was deemed to be the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation. The accompanying condensed consolidated financial statements as of March 31, 2017 and December 31, 2016 , and for the three months ended March 31, 2017 and 2016 , have been prepared in accordance with U.S. GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, these financial statements contain all adjustments, consisting of normal recurring adjustments, necessary for the fair statement of the financial position, results of operations and cash flows for the periods indicated. Results of operations for the periods presented herein are not necessarily indicative of results of operations for the entire year. These financial statements should be read in conjunction with the 2016 Annual Report on Form 10-K. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and the disclosures of contingent assets and liabilities, as of the date of the financial statements and the amount of revenue and expenses during the reporting periods. Actual results could differ from those estimates and those differences may be material. These estimates include the determination of credit loss allowance, discount accretion, impairment, fair value, expected end-of-term lease residual values, values of repossessed assets, and income taxes. These estimates, although based on actual historical trends and modeling, may potentially show significant variances over time.
Business Segment Information	Business Segment Information The Company has one reportable segment: Consumer Finance, which includes the Company’s vehicle financial products and services, including retail installment contracts, vehicle leases, and dealer loans, as well as financial products and services related to motorcycles, recreational vehicles, and marine vehicles. It also includes the Company’s personal loan and point-of-sale financing operations.
Recently Adopted Accounting Standards and Recently Issued Accounting Pronouncements	Recently Adopted Accounting Standards Since January 1, 2017, the Company adopted the following Financial Accounting Standards Board ("FASB") Accounting Standards Updates ("ASUs"): • The Company adopted ASU 2016-09, Compensation - Stock Compensation (Topic 718) . This new guidance simplifies certain aspects related to income taxes, the Statement of Cash Flows (SCF), and forfeitures when accounting for share-based payment transactions. ASU 2016-09 eliminates the requirement to recognize excess tax benefits in APIC pools, and instead requires companies to record all excess tax benefits and deficiencies at settlement, vesting or expiration in the income statement as provision for income taxes. At adoption of ASU 2016-09 on January 1, 2017, the cumulative-effect for previously unrecognized excess tax benefits totaled $26,552 net of tax, and was recognized, as an increased, through an adjustment in beginning retained earnings. The Company recorded excess tax benefits, net of tax of $47 in the provision for income taxes rather than as an increase to additional paid-in capital for the three months ended March 31, 2017, on a prospective basis. Therefore, the prior period presented has not been adjusted. All excess tax benefits along with other income tax cash flows will now be classified as an operating activity rather than financing activities in the SCF on a prospective basis. In addition, the Company changed its accounting policy on forfeitures from previously recognizing forfeitures based on estimating the number of awards expected to be forfeited to electing to recognize forfeiture of awards as they occur to simplify the accounting for forfeitures. This resulted in a cumulative adjustment, as a decrease to, beginning retained earnings of $1,439 . • The Company also adopted ASU 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships . The new guidance clarifies that a change in the counterparties to a derivative contract, i.e., a novation, in and of itself, does not require the de-designation of a hedging relationship. An entity will, however, still need to evaluate whether it is probable that the counterparty will perform under the contract as part of its ongoing effectiveness assessment for hedge accounting. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. • The Company also adopted ASU 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments. This new guidance clarifies that an exercise contingency does not need to be evaluated to determine whether it relates to interest rates and credit risk in an embedded derivative analysis of hybrid financial instruments. In other words, a contingent put or call option embedded in a debt instrument would be evaluated for possible separate accounting as a derivative instrument without regard to the nature of the exercise contingency. However, as required under existing guidance, companies will still need to evaluate other relevant embedded derivative guidance, such as whether the payoff from the contingent put or call option is adjusted based on changes in an index other than interest rates or credit risk, and whether the debt involves a substantial premium or discount. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. • The Company also adopted ASU 2016-07, Investments-Equity Method and Joint Ventures (Topic 323) . The new guidance eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment. Instead, the equity method of accounting should be applied prospectively from the date significant influence is obtained. Investors should add the cost of acquiring the additional interest in the investee (if any) to the current basis of their previously held interest. The new standard also provides specific guidance for available-for-sale securities that become eligible for the equity method of accounting. In those cases, any unrealized gain or loss recorded within accumulated other comprehensive income should be recognized in earnings at the date the investment initially qualifies for the use of the equity method of accounting. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. • The Company also adopted ASU 2016-17, Consolidation (Topic 810), Interest Held Through Related Parties That Are Under Common Control, which amends the guidance in U.S. GAAP on related parties that are under common control. Specifically, the new ASU requires that a single decision maker consider indirect interests held by related parties under common control on a proportionate basis in a manner consistent with its evaluation of indirect interests held through other related parties. The adoption of this ASU did not have a material impact on the Company’s financial position, results of operations or cash flows. Recently Issued Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) , superseding the revenue recognition requirements in ASC 605. This ASU requires an entity to recognize revenue for the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendment includes a five-step process to assist an entity in achieving the main principle(s) of revenue recognition under ASC 605. In August 2015, the FASB issued ASU 2015-14, which formalized the deferral of the effective date of the amendment for a period of one year from the original effective date. Following the issuance of ASU 2015-14, the amendment will be effective for the Company for the first annual period beginning after December 15, 2017. In March 2016, the FASB also issued ASU 2016-08, an amendment to the guidance in ASU 2014-09, which revises the structure of the indicators to provide indicators of when the entity is the principal or agent in a revenue transaction, and eliminated two of the indicators (“the entity’s consideration is in the form of a commission” and “the entity is not exposed to credit risk”) in making that determination. This amendment also clarifies that each indicator may be more or less relevant to the assessment depending on the terms and conditions of the contract. In April 2016, the FASB issued ASU 2016-10, which clarifies the implementation guidance on identifying promised goods or services and on determining whether an entity’s promise to grant a license with either a right to use the entity’s intellectual property (which is satisfied at a point in time) or a right to access the entity’s intellectual property (which is satisfied over time). In May 2016, the FASB issued ASU 2016-12, an amendment to ASU 2014-09, which provided practical expedients related to disclosures of remaining performance obligations, as well as other amendments to guidance on transition, collectability, non-cash consideration and the presentation of sales and other similar taxes. In December 2016, the FASB issued ASU 2016-20, a separate update for technical corrections and improvements to Topic 606 and other Topics amended by Update 2014-09 to increase stakeholders’ awareness of the proposals and to expedite improvements to Update 2014-09. The amendments, collectively, should be applied retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. Because ASU 2014-09 does not apply to revenue associated with leases and financial instruments (including loans and securities), the Company does not expect the new guidance to have a material impact on the elements of its Consolidated Statements of Operations most closely associated with leases and financial instruments (such as interest income, interest expense and investment gain). The Company expects to adopt this ASU in the first quarter of 2018 with a cumulative-effect adjustment to opening retained earnings. The Company’s ongoing implementation efforts include the identification of other revenue streams that are within the scope of the new guidance and reviewing related contracts with customers to determine the effect on certain non-interest income items presented in the Consolidated Statements of Operations and on the presentation and disclosures. In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . This amendment requires that equity investments, except those accounted for under the equity method of accounting or which result in consolidation of the investee, to be measured at fair value, with changes in the fair value being recorded in net income. However, equity investments that do not have readily determinable fair values will be measured at cost less impairment, if any, plus the effect of changes resulting from observable price transactions in orderly transactions or for the identical or similar investment of the same issuer. The amendment also simplifies the impairment assessment of equity instruments that do not have readily determinable fair values, eliminates the requirement to disclose methods and assumptions used to estimate fair value of instruments measured at their amortized cost on the balance sheet, requires that the disclosed fair values of financial instruments represent "exit price," requires entities to separately present in other comprehensive income the portion of the total change in fair value of a liability resulting from instrument-specific credit risk when the fair value option has been elected for that liability, requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes, and clarifies that an entity should evaluate the need for a valuation allowance on its deferred tax asset related to its available-for-sale securities in combination with its other deferred tax assets. This amendment will be effective for the Company for the first reporting period beginning after December 15, 2017, with earlier adoption permitted by public entities on a limited basis. Adoption of the amendment must be applied by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption, except for amendments related to equity instruments that do not have readily determinable fair values, for which it should be applied prospectively. While the Company is still in the process of evaluating the impacts of the adoption of this ASU, the Company does not expect the impact to be material to its financial position, results of operations or cash flows. In February 2016, the FASB issued ASU 2016-02, Leases, which will, among other impacts, change the criteria under which leases are identified and accounted for as on- or off-balance sheet. The guidance will be effective for the fiscal year beginning after December 15, 2018, including interim periods within that year. Once effective, the new guidance must be applied for all periods presented. The Company does not expect the new guidance to have a material impact on the Consolidated Statements of Income or the Consolidated Statements of Shareholders' Equity, since the Company recognizes assets and liabilities for all of its vehicle lease transactions. The Company will continue to evaluate the impact of the new guidance on its operating leases primarily for office space and computer equipment. Upon adoption, the Company will gross up its balance sheet by the present value of future minimum lease payments for these operating leases. In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses , which changes the criteria under which credit losses are measured. The amendment introduces a new credit reserving model known as the Current Expected Credit Loss (CECL) model, which replaces the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to establish credit loss estimates. The guidance will be effective for the fiscal year beginning after December 15, 2019, including interim periods within that year. The Company does not intend to adopt the new standard early and is currently evaluating the impact the new guidance will have on its financial position, results of operations and cash flows; however, it is expected that the new CECL model will alter the assumptions used in calculating the Company's credit losses, given the change to estimated losses for the estimated life of the financial asset, and will likely result in material changes to the Company’s credit and capital reserves. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments . This update amends the guidance in ASC 230 on the classification of certain cash receipts and payments in the SCF. The ASU’s amendments add or clarify guidance on eight cash flow issues including debt extinguishment costs, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions, and separately identifiable cash flows and application of the predominance principle. The guidance will be effective for the fiscal year beginning after December 15, 2017, including interim periods within that year. Early adoption is permitted, including adoption in an interim period, however any adjustments should be reflected as of the beginning of the fiscal year that includes the period of adoption. All of the amended guidance must be adopted in the same period. The Company is in the process of evaluating the impacts of the adoption of this ASU. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740), Intra-Entity Transfers of Assets Other Than Inventory , which will require an entity to recognize the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. This eliminates the current exception for all intra-entity transfers of an asset other than inventory that requires deferral of the tax effects until the asset is sold to a third party or otherwise recovered through use. The guidance will be effective for the Company for annual reporting periods beginning after December 15, 2017, including interim reporting periods. Early adoption is permitted at the beginning of an annual reporting period for which annual or interim financial statements have not been issued or made available for issuance. The Company is in the process of evaluating the impacts of the adoption of this ASU. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (A consensus of the FASB Emerging Issues Task Force) , which requires that the statement of cash flows include restricted cash in the beginning and end-of-period total amounts shown on the statement of cash flows and that the statement of cash flows explain changes in restricted cash during the period. The guidance will be effective for the Company for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted, however, adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The Company does not expect the adoption of this ASU to have an impact on its financial position, results of operations or cash flows and expects the impact to be disclosure only. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business . The new guidance revises the definition of a business, potentially affecting areas of accounting such as acquisitions, disposals, goodwill impairment, and consolidation. Under the new guidance, when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the assets acquired (or disposed of) would not represent a business. If this initial screen is met, no further analysis would be required. To be considered a business, an acquisition would have to include an input and a substantive process that together significantly contribute to the ability to create an output. In addition, the amendments narrow the definition of the term “output” so that it is consistent with how outputs are defined in ASC Topic 606, Revenue from Contracts with Customers . This new guidance will be effective for the Company for the first reporting period beginning after December 15, 2017, with earlier adoption permitted. Adoption of the amendments must be applied on a prospective basis. The Company is in the process of evaluating the impacts of the adoption of this ASU. On January 26, 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill & Other (Topic 350): Simplifying the Accounting for Goodwill Impairment . It removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. The new rules state that a goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts. The revised guidance will be applied prospectively, and is effective January 1, 2020, with early adoption permitted for any impairment tests performed after January 1, 2017. The Company is in the process of evaluating the impacts of the adoption of this ASU.

Finance Receivables (Tables)

Finance Receivables (Tables)	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Summary of Financing Receivables Held for Investment	Finance receivables held for investment, net is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Retail installment contracts acquired individually (a) $ 23,200,111 $ 23,219,724 Purchased receivables 146,150 158,264 Receivables from dealers 69,643 68,707 Personal loans 7,499 12,272 Capital lease receivables (Note 3) 21,222 22,034 Finance receivables held for investment, net $ 23,444,625 $ 23,481,001 (a) The Company has elected the fair value option for certain retail installment contracts reported in finance receivables held for investment, net. As at March 31, 2017 and December 31, 2016 , $30,652 and $24,495 of loans were recorded at fair value (Note 13). The Company's held for investment portfolio of retail installment contracts acquired individually, receivables from dealers, and personal loans is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, 2017 Retail Installment Contracts Receivables from Personal Loans Non-TDR TDR Unpaid principal balance $ 21,286,466 $ 5,788,390 $ 70,377 $ 15,412 Credit loss allowance - specific — (1,604,489 ) — — Credit loss allowance - collective (1,836,730 ) — (734 ) (4,517 ) Discount (409,142 ) (88,546 ) — (3,822 ) Capitalized origination costs and fees 58,791 5,371 — 426 Net carrying balance $ 19,099,385 $ 4,100,726 $ 69,643 $ 7,499 December 31, 2016 Retail Installment Contracts Receivables from Personal Loans Non-TDR TDR Unpaid principal balance $ 21,528,406 $ 5,599,567 $ 69,431 $ 19,361 Credit loss allowance - specific — (1,611,295 ) — — Credit loss allowance - collective (1,799,760 ) — (724 ) — Discount (467,757 ) (91,359 ) — (7,721 ) Capitalized origination costs and fees 56,704 5,218 — 632 Net carrying balance $ 19,317,593 $ 3,902,131 $ 68,707 $ 12,272 Purchased receivables portfolios, which were acquired with deteriorated credit quality, is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Outstanding balance $ 212,018 $ 231,360 Outstanding recorded investment, net of impairment $ 147,094 $ 159,451
Changes in Accretable Yield on Purchased Receivables Portfolios	Changes in accretable yield on the Company’s purchased receivables portfolios for the periods indicated were as follows: For the Three Months Ended 2017 2016 Balance — beginning of period $ 107,041 $ 178,582 Accretion of accretable yield (11,144 ) (21,329 ) Reclassifications from (to) nonaccretable difference 2,049 (917 ) Balance — end of period $ 97,946 $ 156,336
Schedule of Carrying Values of Finance Receivables Held for Sale	The carrying value of the Company's finance receivables held for sale, net is comprised of the following at March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Retail installment contracts acquired individually $ 876,916 $ 1,045,815 Personal loans 979,103 1,077,600 Finance receivables held for sale, net $ 1,856,019 $ 2,123,415
Schedule of Sales of Retail Installment Contracts and Charged-off Assets	Sales of retail installment contracts to third parties and proceeds from sales of charged-off assets for the three months ended March 31, 2017 and 2016 were as follows: For the Three Months Ended 2017 2016 Sales of retail installment contracts to third parties $ 230,568 $ 859,955 Proceeds from sales of charged-off assets 21,343 6,230
Schedule of Servicing of Retail Installment Contracts	The Company retains servicing of retail installment contracts and leases sold to third parties. Total contracts sold to unrelated third parties and serviced as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, 2016 Serviced balance of retail installment contracts and leases sold to third parties $ 8,926,456 $ 10,116,788

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2017
Leases [Abstract]
Summary of Leased Vehicles	Leased vehicles, net, which is comprised of leases originated under the Chrysler Agreement, consisted of the following as of March 31, 2017 and December 31, 2016 : March 31, December 31, Leased vehicles $ 12,442,141 $ 11,939,295 Less: accumulated depreciation (2,394,567 ) (2,326,342 ) Depreciated net capitalized cost 10,047,574 9,612,953 Manufacturer subvention payments, net of accretion (1,141,194 ) (1,066,531 ) Origination fees and other costs 21,156 18,206 Net book value $ 8,927,536 $ 8,564,628
Summary of Minimum Rental Payments under Operating Leases	The following summarizes the future minimum rental payments due to the Company as lessor under operating leases as of March 31, 2017 : Remainder of 2017 $ 1,191,931 2018 1,091,466 2019 445,100 2020 28,504 2021 79 Thereafter — Total $ 2,757,080
Schedule of Capital Lease Receivables	Capital lease receivables, net consisted of the following as of March 31, 2017 and December 31, 2016 : March 31, December 31, Gross investment in capital leases $ 33,657 $ 39,417 Origination fees and other 68 150 Less: unearned income (5,898 ) (7,545 ) Net investment in capital leases before allowance 27,827 32,022 Less: allowance for lease losses (6,605 ) (9,988 ) Net investment in capital leases $ 21,222 $ 22,034
Summary of Future Minimum Lease Payments for Capital Leases	The following summarizes the future minimum lease payments due to the Company as lessor under capital leases as of March 31, 2017 : Remainder of 2017 $ 10,365 2018 13,195 2019 6,280 2020 2,495 2021 1,322 Thereafter — Total $ 33,657

Credit Loss Allowance and Cre27

Credit Loss Allowance and Credit Quality (Tables)	3 Months Ended
	Mar. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]
Summary of Activity in Loan Loss Allowance	The activity in the lease loss allowance for capital leases for the three months ended March 31, 2017 and 2016 was as follows: Three Months Ended 2017 2016 Balance — beginning of period $ 9,988 $ 19,878 Provision for lease losses (2,069 ) (1,547 ) Charge-offs (3,679 ) (12,359 ) Recoveries 2,365 9,888 Balance — end of period $ 6,605 $ 15,860 The activity in the credit loss allowance for individually acquired and dealer loans for the three months ended March 31, 2017 and 2016 was as follows: Three Months Ended March 31, 2017 Retail Installment Contracts Acquired Individually Receivables from Dealers Personal Loans Balance — beginning of period $ 3,411,055 $ 724 $ — Provision for credit losses 629,097 10 7,975 Charge-offs (a) (1,224,697 ) — (3,632 ) Recoveries 625,764 — 174 Balance — end of period $ 3,441,219 $ 734 $ 4,517 (a) Charge-offs for retail installment contracts acquired individually includes approximately $24 million for the partial write-down of loans to the collateral value less estimated costs to sell, for which a bankruptcy notice was received. Three Months Ended March 31, 2016 Retail Installment Contracts Acquired Individually Receivables Balance — beginning of period $ 3,197,414 $ 916 Provision for credit losses 663,126 487 Charge-offs (1,150,628 ) — Recoveries 610,315 — Balance — end of period $ 3,320,227 $ 1,403
Summary of Impairment Activity Related to Purchased Receivables Portfolios	The impairment activity related to purchased receivables portfolios for the three months ended March 31, 2017 and 2016 was as follows: Three Months Ended 2017 2016 Balance — beginning of period $ 169,323 $ 172,308 Incremental provisions for purchased receivable portfolios — — Incremental reversal of provisions for purchased receivable portfolios — (1,896 ) Balance — end of period $ 169,323 $ 170,412
Summary of Delinquencies	As of March 31, 2017 and December 31, 2016 , a summary of delinquencies on retail installment contracts held for investment portfolio is as follows: March 31, 2017 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 30-59 days past due $ 2,336,113 $ 9,882 $ 2,345,995 Delinquent principal over 59 days (a) 1,148,517 4,852 1,153,369 Total delinquent principal $ 3,484,630 $ 14,734 $ 3,499,364 December 31, 2016 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 30-59 days past due $ 2,911,800 $ 13,703 $ 2,925,503 Delinquent principal over 59 days (a) 1,520,105 6,638 1,526,743 Total delinquent principal $ 4,431,905 $ 20,341 $ 4,452,246 (a) Interest is accrued until 60 days past due in accordance with the Company's accounting policy for retail installment contracts.
Summary of Credit Risk Profile	A summary of the credit risk profile of the Company’s retail installment contracts held for investment by FICO ® distribution, determined at origination, as of March 31, 2017 and December 31, 2016 was as follows: FICO ® Band March 31, 2017 December 31, 2016 Commercial (a) 2.8% 3.1% No-FICOs 12.0% 12.2% <540 22.3% 22.1% 540-599 31.7% 31.4% 600-639 17.4% 17.4% >640 13.8% 13.8% (a) No FICO score is obtained on loans to commercial borrowers. (b) FICO scores are updated quarterly.
Summary Commercial Loan Credit Quality Indicators	Fleet loan credit quality indicators for retail installment contracts held for investment with commercial borrowers as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, Pass $ 49,752 $ 17,585 Special Mention 15,282 2,790 Substandard 2,696 1,488 Doubtful — — Loss 125 — Total $ 67,855 $ 21,863 Commercial loan credit quality indicators for receivables from dealers held for investment as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, Pass $ 68,672 $ 67,681 Special Mention — — Substandard 1,705 1,750 Doubtful — — Loss — — Unpaid principal balance $ 70,377 $ 69,431
Summary of TDRs	The table below presents the Company’s TDRs as of March 31, 2017 and December 31, 2016 : March 31, December 31, 2016 Retail Installment Contracts Outstanding recorded investment (a) $ 5,785,032 $ 5,637,792 Impairment (1,604,489 ) (1,611,295 ) Outstanding recorded investment, net of impairment $ 4,180,543 $ 4,026,497 (a) As of March 31, 2017, the outstanding recorded investment excludes $14.7 million of collateral-dependent bankruptcy TDRs that has been written down by $7.6 million to fair value less cost to sell.
Summary of Delinquent TDRs	A summary of the Company’s delinquent TDRs at March 31, 2017 and December 31, 2016 , is as follows: March 31, December 31, 2016 Retail Installment Contracts Principal, 30-59 days past due $ 1,078,637 $ 1,253,848 Delinquent principal over 59 days 579,262 736,691 Total delinquent TDR principal $ 1,657,899 $ 1,990,539
Average Recorded Investment and Income Recognized on TDR Loans	Average recorded investment and income recognized on TDR loans are as follows: Three Months Ended March 31, 2017 March 31, 2016 Retail Installment Contracts Average outstanding recorded investment in TDRs $ 5,711,412 $ 4,666,713 Interest income recognized $ 260,352 $ 174,191
Summary of Financial Effects of TDRs	The following table summarizes the financial effects of TDRs that occurred during the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 March 31, 2016 Retail Installment Contracts Outstanding recorded investment before TDR $ 881,699 $ 692,928 Outstanding recorded investment after TDR $ 866,278 $ 699,286 Number of contracts (not in thousands) 49,499 39,380
Summary of Loan Restructuring Accounted for as TDRs	Loan restructurings accounted for as TDRs within the previous twelve months that subsequently defaulted during the three months ended March 31, 2017 and 2016 are summarized in the following table: Three Months Ended March 31, 2017 March 31, 2016 Retail Installment Contracts Recorded investment in TDRs that subsequently defaulted (a) $ 211,697 $ 199,862 Number of contracts (not in thousands) 11,894 11,402 (a) For TDR modifications and TDR modifications that subsequently defaults, the allowance methodology remains unchanged.

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Schedule of Credit Facilities	The following table presents information regarding credit facilities as of March 31, 2017 and December 31, 2016 : March 31, 2017 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Facilities with third parties: Warehouse line January 2018 $ 168,084 $ 500,000 2.84% $ 213,200 $ — Warehouse line Various (a) 232,045 1,250,000 3.73% 326,912 11,207 Warehouse line (b) August 2018 216,520 780,000 3.30% 281,270 6,946 Warehouse line (c) August 2018 2,018,143 3,120,000 2.29% 3,067,595 64,912 Warehouse line October 2018 435,477 1,800,000 3.31% 620,916 10,000 Repurchase facility (d) December 2017 328,608 328,608 3.32% — 14,012 Repurchase facility (d) April 2017 235,509 235,509 2.04% — — Repurchase facility (d) March 2018 147,182 147,182 3.31% — — Repurchase facility (d) April 2017 59,202 59,202 2.09% — — Warehouse line November 2018 301,199 1,000,000 2.51% 451,750 7,902 Warehouse line July 2018 235,784 250,000 3.25% 500,095 44,377 Warehouse line October 2018 132,365 400,000 2.91% 189,416 2,671 Warehouse line November 2018 174,720 500,000 2.16% 186,481 4,722 Warehouse line October 2017 273,800 300,000 2.44% 322,183 10,803 Total facilities with third parties 4,958,638 10,670,501 6,159,818 177,552 Lines of credit with Santander and related subsidiaries (e, f): Line of credit December 2017 500,000 500,000 3.24% — — Line of credit December 2018 — 500,000 3.89% — — Line of credit December 2017 1,000,000 1,000,000 2.83% — — Line of credit December 2018 400,000 1,000,000 3.36% — — Promissory Note March 2019 300,000 300,000 2.45% — — Promissory Note March 2022 650,000 650,000 4.20% — — Line of credit March 2019 — 3,000,000 3.94% — — Total facilities with Santander and related subsidiaries 2,850,000 6,950,000 — — Total revolving credit facilities $ 7,808,638 $ 17,620,501 $ 6,159,818 $ 177,552 (a) Half of the outstanding balance on this facility matures in April 2017 and half matures in March 2018. In April 2017, the facilities that matured were extended to March 2019. (b) This line is held exclusively for financing of Chrysler Capital loans. (c) This line is held exclusively for financing of Chrysler Capital leases. (d) These repurchase facilities are collateralized by securitization notes payable retained by the Company. These facilities have rolling maturities of up to one year . In April 2017, the repurchase facilities that matured were extended to May 2017. (e) These lines generally are also collateralized by securitization notes payable and residuals retained by the Company. As of March 31, 2017 and December 31, 2016 , $1,623,538 and $1,316,568 , respectively, of the aggregate outstanding balances on these facilities were unsecured. (f) SPAIN Revolving Funding LLC (a subsidiary) established a committed facility of $750 million with the New York branch of Santander on April 3, 2017. Borrowings under this facility bear interest at a rate equal to one-month LIBOR plus a spread (based on the quality of the collateral for the facility) ranging from 0.60% to 0.90% . The current maturity date of the facility is December 31, 2018. December 31, 2016 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Facilities with third parties: Warehouse line January 2018 $ 153,784 $ 500,000 3.17% $ 213,578 $ — Warehouse line Various 462,085 1,250,000 2.52% 653,014 14,916 Warehouse line August 2018 534,220 780,000 1.98% 608,025 24,520 Warehouse line August 2018 3,119,943 3,120,000 1.91% 4,700,774 70,991 Warehouse line October 2018 702,377 1,800,000 2.51% 994,684 23,378 Repurchase facility December 2017 507,800 507,800 2.83% — 22,613 Repurchase facility April 2017 235,509 235,509 2.04% — — Warehouse line November 2018 578,999 1,000,000 1.56% 850,758 17,642 Warehouse line October 2018 202,000 400,000 2.22% 290,867 5,435 Warehouse line November 2018 — 500,000 2.07% — — Warehouse line October 2017 243,100 300,000 2.38% 295,045 9,235 Total facilities with third parties 6,739,817 10,393,309 8,606,745 188,730 Lines of credit with Santander and related subsidiaries: Line of credit December 2017 500,000 500,000 3.04% — — Line of credit December 2018 175,000 500,000 3.87% — — Line of credit December 2017 1,000,000 1,000,000 2.86% — — Line of credit December 2018 1,000,000 1,000,000 2.88% — — Line of credit March 2017 300,000 300,000 2.25% — — Line of credit March 2019 — 3,000,000 3.74% — — Total facilities with Santander and related subsidiaries 2,975,000 6,300,000 — — Total revolving credit facilities $ 9,714,817 $ 16,693,309 $ 8,606,745 $ 188,730
Summary of Secured Structured Financings	The following table presents information regarding secured structured financings as of March 31, 2017 and December 31, 2016 : March 31, 2017 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 $ 69,677 $ 1,025,540 1.23% $ 113,867 $ 31,277 2013 Securitizations January 2019 - March 2021 992,709 6,689,700 0.89%-1.59% 1,272,176 228,108 2014 Securitizations February 2020 - April 2022 1,648,799 6,391,020 1.16%-1.72% 2,071,309 257,629 2015 Securitizations September 2019 - January 2023 3,802,864 9,264,432 1.33%-2.29% 5,073,548 489,225 2016 Securitizations April 2022 - March 2024 5,266,504 7,462,790 1.63%-2.80% 6,802,736 459,748 2017 Securitizations April 2023 - July 2024 3,010,805 3,125,430 2.01%-2.43% 3,764,454 175,497 Public securitizations (a) 14,791,358 33,958,912 19,098,090 1,641,484 2010 Private issuances June 2011 99,172 516,000 1.29% 198,524 7,117 2011 Private issuances December 2018 237,745 1,700,000 1.46% 517,516 33,863 2013 Private issuances September 2018 2,988,296 2,044,054 1.28%-1.38% 5,064,575 237,078 2014 Private issuances March 2018 - November 2021 264,411 1,530,125 1.05%-1.40% 382,536 50,425 2015 Private issuances December 2016 - July 2019 1,984,521 2,605,062 0.88%-2.81% 1,998,100 169,635 2016 Private issuances May 2020 - September 2024 2,262,387 3,050,000 1.55%-2.86% 3,218,736 117,809 2017 Private issuances April 2021 - September 2021 1,038,776 1,000,000 1.85%-2.27% 1,501,121 16,826 Privately issued amortizing notes 8,875,308 12,445,241 12,881,108 632,753 Total secured structured financings $ 23,666,666 $ 46,404,153 $ 31,979,198 $ 2,274,237 (a) Securitizations executed under Rule 144A of the Securities Act are included within this balance. December 31, 2016 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 $ 197,470 $ 2,525,540 0.92%-1.23% $ 312,710 $ 73,733 2013 Securitizations January 2019 - January 2021 1,172,904 6,689,700 0.89%-1.59% 1,484,014 222,187 2014 Securitizations February 2020 - January 2021 1,858,600 6,391,020 1.16%-1.72% 2,360,939 250,806 2015 Securitizations September 2019 - January 2023 4,326,292 9,317,032 1.33%-2.29% 5,743,884 468,787 2016 Securitizations April 2022 - March 2024 5,881,216 7,462,790 1.63%-2.46% 7,572,977 408,086 Securitizations 13,436,482 32,386,082 17,474,524 1,423,599 2010 Private issuances June 2011 113,157 516,000 1.29% 213,235 6,270 2011 Private issuances December 2018 342,369 1,700,000 1.46% 617,945 31,425 2013 Private issuances September 2018-September 2020 2,375,964 2,693,754 1.13%-1.38% 4,122,963 164,740 2014 Private issuances March 2018 - December 2021 643,428 3,271,175 1.05%-1.40% 1,129,506 68,072 2015 Private issuances December 2016 - July 2019 2,185,166 2,855,062 0.88%-2.81% 2,384,661 140,269 2016 Securitizations May 2020 - September 2024 2,512,323 3,050,000 1.55%-2.86% 3,553,577 90,092 Privately issued amortizing notes 8,172,407 14,085,991 12,021,887 500,868 Total secured structured financings $ 21,608,889 $ 46,472,073 $ 29,496,411 $ 1,924,467

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2017
Variable Interest Entity Disclosure [Abstract]
Summary of Cash Flows Received from Consolidated Securitization Trusts	A summary of the cash flows received from off-balance sheet securitization trusts during the three months ended March 31, 2017 and 2016 is as follows: Three Months Ended March 31, 2017 March 31, 2016 Receivables securitized (a) $ 700,022 $ — Net proceeds from new securitizations $ 702,319 $ — Cash received for servicing fees 1,398 15,701 Total cash received from securitization trusts $ 703,717 $ 15,701 (a) Represents the unpaid principal balance at the time of original securitization. A summary of the cash flows received from consolidated securitization trusts during the three months ended March 31, 2017 and 2016 , is as follows: Three Months Ended March 31, 2017 March 31, 2016 Assets securitized $ 7,646,625 $ 3,657,955 Net proceeds from new securitizations (a) $ 5,576,801 $ 2,702,004 Net proceeds from sale of retained bonds 115,970 — Cash received for servicing fees (b) 208,923 194,365 Net distributions from Trusts (b) 678,229 629,726 Total cash received from Trusts $ 6,579,923 $ 3,526,095 (a) Includes additional advances on existing securitizations. (b) These amounts are not reflected in the accompanying condensed consolidated statements of cash flows because these cash flows are intra-company and eliminated in consolidation.
Off-balance Sheet Variable Interest Entities Portfolio	The portfolio was comprised as follows: March 31, 2017 December 31, 2016 SPAIN $ 666,346 $ — Total serviced for related parties 666,346 — Chrysler Capital securitizations 2,188,452 2,472,756 Other third parties 89,107 268,345 Total serviced for third parties 2,277,559 2,741,101 Total serviced for others portfolio $ 2,943,905 $ 2,741,101

Derivative Financial Instrume30

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Underlying Notional Amounts and Aggregate Fair Values	The underlying notional amounts and aggregate fair values of these derivatives financial instruments at March 31, 2017 and December 31, 2016 , are as follows: March 31, 2017 December 31, 2016 Notional Fair Value Notional Fair Value Interest rate swap agreements designated as cash flow hedges $ 7,045,800 $ 56,573 $ 7,854,700 $ 44,618 Interest rate swap agreements not designated as hedges 813,700 3,258 1,019,900 1,939 Interest rate cap agreements 10,690,797 104,625 9,463,935 76,269 Options for interest rate cap agreements 10,690,797 (104,692 ) 9,463,935 (76,281 ) Total return settlement 658,471 (31,123 ) 658,471 (30,618 )
Schedule of Offsetting Financial Assets	Information on the offsetting of derivative assets and derivative liabilities due to the right of offset was as follows, as of March 31, 2017 and December 31, 2016 : Gross Amounts Not Offset in the Assets Presented Cash Net March 31, 2017 Interest rate swaps - Santander and affiliates $ 8,194 $ — $ 8,194 Interest rate swaps - third party 51,957 (9,783 ) 42,174 Interest rate caps - Santander and affiliates 7,812 — 7,812 Interest rate caps - third party 96,813 (11,586 ) 85,227 Total derivatives subject to a master netting arrangement or similar arrangement 164,776 (21,369 ) 143,407 Total derivatives not subject to a master netting arrangement or similar arrangement — — — Total derivative assets $ 164,776 $ (21,369 ) $ 143,407 Total financial assets $ 164,776 $ (21,369 ) $ 143,407 December 31, 2016 Interest rate swaps - Santander and affiliates $ 5,372 $ — $ 5,372 Interest rate swaps - third party 42,254 (22,100 ) 20,154 Interest rate caps - Santander and affiliates 7,593 — 7,593 Interest rate caps - third party 68,676 — 68,676 Total derivatives subject to a master netting arrangement or similar arrangement 123,895 (22,100 ) 101,795 Total derivatives not subject to a master netting arrangement or similar arrangement — — — Total derivative assets $ 123,895 $ (22,100 ) $ 101,795 Total financial assets $ 123,895 $ (22,100 ) $ 101,795 (a) Cash collateral pledged is reported in Other liabilities or Due to affiliate, as applicable, in the condensed consolidated balance sheet.
Schedule of Offsetting Financial Liabilities	Gross Amounts Not Offset in the Liabilities Presented Cash Net March 31, 2017 Interest rate swaps - Santander & affiliates $ 87 $ (87 ) $ — Interest rate swaps - third party 234 (234 ) — Back to back - Santander & affiliates 7,812 (7,812 ) — Back to back - third party 96,880 (81,503 ) 15,377 Total derivatives subject to a master netting arrangement or similar arrangement 105,013 (89,636 ) 15,377 Total return settlement 31,123 — 31,123 Total derivatives not subject to a master netting arrangement or similar arrangement 31,123 — 31,123 Total derivative liabilities $ 136,136 $ (89,636 ) $ 46,500 Total financial liabilities $ 136,136 $ (89,636 ) $ 46,500 December 31, 2016 Interest rate swaps - Santander & affiliates $ 546 $ (546 ) $ — Interest rate swaps - third party 524 (524 ) — Back to back - Santander & affiliates 7,593 (7,593 ) — Back to back - third party 68,688 (68,688 ) — Total derivatives subject to a master netting arrangement or similar arrangement 77,351 (77,351 ) — Total return settlement 30,618 — 30,618 Total derivatives not subject to a master netting arrangement or similar arrangement 30,618 — 30,618 Total derivative liabilities $ 107,969 $ (77,351 ) $ 30,618 Total financial liabilities $ 107,969 $ (77,351 ) $ 30,618 (a) Cash collateral pledged is reported in Other assets or Due from affiliate, as applicable, in the condensed consolidated balance sheet.
Gross Gains (Losses) Reclassified from Accumulated Other Comprehensive Income (Loss)	The gross gains (losses) reclassified from accumulated other comprehensive income (loss) to net income, and gains (losses) recognized in net income, are included as components of interest expense. The impacts on the condensed consolidated statements of income and comprehensive income for the three months ended March 31, 2017 and 2016 were as follows: Three Months Ended March 31, 2017 Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Interest rate swap agreements designated as cash flow hedges $ 383 $ 7,332 $ 4,240 Derivative instruments not designated as hedges: Gains (losses) recognized in interest expense $ (1,204 ) Gains (losses) recognized in operating expenses $ (505 ) Three Months Ended March 31, 2016 Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Interest rate swap agreements designated as cash flow hedges $ 208 $ (73,005 ) $ (12,082 ) Derivative instruments not designated as hedges: Gains (losses) recognized in interest expense $ (5,499 ) Gains (losses) recognized in operating expenses $ (1,316 )

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	Other assets were comprised as follows: March 31, December 31, Vehicles (a) $ 314,960 $ 257,382 Manufacturer subvention payments receivable (b) 134,347 161,447 Upfront fee (b) 91,250 95,000 Derivative assets at fair value (c) 148,770 110,930 Derivative - third party collateral 81,737 75,089 Prepaids 46,613 46,177 Accounts receivable 29,872 22,480 Other 14,322 16,905 Other assets $ 861,871 $ 785,410 (a) Includes vehicles obtained through repossession as well as vehicles obtained due to lease terminations. (b) These amounts relate to the Chrysler Agreement. The Company paid a $150,000 upfront fee upon the May 2013 inception of the agreement. The fee is being amortized into finance and other interest income over a ten -year term. As the preferred financing provider for FCA, the Company is entitled to subvention payments on loans and leases with below-market customer payments. (c) Derivative assets at fair value represent the gross amount of derivatives presented in the condensed consolidated financial statements. Refer to Note 7 to these Condensed Consolidated Financial Statements for the detail of these amounts.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Summary of Liabilities for Commitments and Contingencies	The following table summarizes liabilities recorded for commitments and contingencies as of March 31, 2017 and December 31, 2016 , all of which are included in accounts payable and accrued expenses in the accompanying condensed consolidated balance sheets: Agreement or Legal Matter Commitment or Contingency March 31, 2017 December 31, 2016 Chrysler Agreement Revenue-sharing and gain-sharing payments $ 9,234 $ 10,134 Agreement with Bank of America Servicer performance fee 10,814 9,797 Agreement with CBP Loss-sharing payments 4,612 4,563 Legal and regulatory proceedings Aggregate legal and regulatory liabilities 43,170 39,200
Schedule of Future Minimum Rental Payments for Operating Leases	The remaining obligations under lease commitments at March 31, 2017 are as follows: 2017 $ 11,858 2018 12,781 2019 12,866 2020 13,074 2021 12,691 Thereafter 53,690 Total $ 116,960

Related-Party Transactions (Tab

Related-Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2017
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	Other information on the serviced auto loan and retail installment contract portfolios for SBNA as of March 31, 2017 and December 31, 2016 is as follows: March 31, December 31, Total serviced portfolio $ 495,885 $ 531,117 Cash collections due to owner 20,980 21,427 Servicing fees receivable 1,060 1,123 Interest expense, including unused fees, for affiliate lines/letters of credit for the three months ended March 31, 2017 and 2016 , was as follows: Three Months Ended March 31, 2017 March 31, 2016 Line of credit agreement with Santander - New York Branch (Note 5) $ 22,976 $ 20,273 Line of credit agreement with SHUSA (Note 5) 12,634 2,864 Accrued interest for affiliate lines/letters of credit at March 31, 2017 and December 31, 2016 , was as follows: March 31, December 31, 2016 Line of credit agreement with Santander - New York Branch (Note 5) $ 7,569 $ 6,297 Line of credit agreement with SHUSA (Note 5) 5,095 1,737 Other information on the consumer vehicle lease portfolio serviced for SBNA as of March 31, 2017 and December 31, 2016 is as follows: March 31, December 31, Total serviced portfolio $ 926,377 $ 1,297,317 Cash collections due to owner 303 78 Origination and servicing fees receivable 645 926 Revenue share reimbursement receivable 813 612

Computation of Basic and Dilu34

Computation of Basic and Diluted Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Summary of Computation of Basic and Diluted Earnings per Common Share	The following table represents EPS numbers for the three months ended March 31, 2017 and 2016 : Three Months Ended 2017 2016 Earnings per common share Net income $ 143,427 $ 208,299 Weighted average number of common shares outstanding before restricted participating shares (in thousands) 358,939 357,625 Weighted average number of participating restricted common shares outstanding (in thousands) 166 350 Weighted average number of common shares outstanding (in thousands) 359,105 357,975 Earnings per common share $ 0.40 $ 0.58 Earnings per common share - assuming dilution Net income $ 143,427 $ 208,299 Weighted average number of common shares outstanding (in thousands) 359,105 357,975 Effect of employee stock-based awards (in thousands) 1,511 865 Weighted average number of common shares outstanding - assuming dilution (in thousands) 360,616 358,840 Earnings per common share - assuming dilution $ 0.40 $ 0.58

Fair Value of Financial Instr35

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Summary of Fair Value Estimates, Methods and Assumptions	The following tables present the carrying value and estimated fair value of the Company’s financial assets and liabilities disclosed, but not carried, at fair value at March 31, 2017 and December 31, 2016 , and the level within the fair value hierarchy: March 31, 2017 Carrying Estimated Level 1 Level 2 Level 3 Assets: Cash and cash equivalents (a) $ 420,826 $ 420,826 $ 420,826 $ — $ — Finance receivables held for investment, net (b) 23,413,973 24,585,906 — — 24,585,906 Restricted cash (a) 2,946,736 2,946,736 2,946,736 — — Total $ 26,781,535 $ 27,953,468 $ 3,367,562 $ — $ 24,585,906 Liabilities: Notes payable — credit facilities (c) $ 4,958,638 $ 4,958,638 $ — $ — $ 4,958,638 Notes payable — secured structured financings (d) 23,666,666 23,814,779 — 14,927,192 8,887,587 Notes payable — related party (e) 2,850,000 2,850,000 — — 2,850,000 Total $ 31,475,304 $ 31,623,417 $ — $ 14,927,192 $ 16,696,225 December 31, 2016 Carrying Estimated Level 1 Level 2 Level 3 Assets: Cash and cash equivalents (a) $ 160,180 $ 160,180 $ 160,180 $ — $ — Finance receivables held for investment, net (b) 23,456,506 24,630,599 — — 24,630,599 Restricted cash (a) 2,757,299 2,757,299 2,757,299 — — Total $ 26,373,985 $ 27,548,078 $ 2,917,479 $ — $ 24,630,599 Liabilities: Notes payable — credit facilities (c) $ 6,739,817 $ 6,739,817 $ — $ — $ 6,739,817 Notes payable — secured structured financings (d) 21,608,889 21,712,691 — 13,530,045 8,182,646 Notes payable — related party (e) 2,975,000 2,975,000 — — 2,975,000 Total $ 31,323,706 $ 31,427,508 $ — $ 13,530,045 $ 17,897,463 (a) Cash and cash equivalents and restricted cash — The carrying amount of cash and cash equivalents, including restricted cash, is at an approximated fair value as the instruments mature within 90 days or less and bear interest at market rates. (b) Finance receivables held for investment, net — Finance receivables held for investment, net are carried at amortized cost, net of an allowance. The estimated fair value for the underlying financial instruments are determined as follows: • Retail installment contracts held for investment, net — The estimated fair value is calculated based on a DCF in which the Company uses significant unobservable inputs on key assumptions, including historical default rates and adjustments to reflect prepayment rates, expected recovery rates, discount rates reflective of the cost of funding, and credit loss expectations. • Receivables from dealers held for investment and Capital lease receivables, net — Receivables from dealers held for investment are carried at amortized cost, net of credit loss allowance. Capital lease receivables are carried at gross investment, net of unearned income and allowance for lease losses. Management believes that the terms of these credit agreements approximate market terms for similar credit agreements. (c) Notes payable — credit facilities — The carrying amount of notes payable related to revolving credit facilities is estimated to approximate fair value. Management believes that the terms of these credit agreements approximate market terms for similar credit agreements as the facilities are subject to short-term floating interest rates that approximate rates available to the Company. (d) Notes payable — secured structured financings — The estimated fair value of notes payable related to secured structured financings is calculated based on market observable prices and spreads for the Company's publicly traded debt and market observed prices of similar notes issued by the Company, or recent market transactions involving similar debt with similar credit risks, which are considered level 2 inputs. The estimated fair value of notes payable related to privately issued amortizing notes is calculated based on a combination of discounted cash flow analysis and market observable spreads for similar liabilities in which the Company uses significant unobservable inputs on key assumptions, including historical default rates and adjustments to reflect prepayment rates, discount rates reflective of the cost of funding, and credit loss expectations, which are considered level 3 inputs. (e) Notes payable — related party — The carrying amount of notes payable to a related party is estimated to approximate fair value as the facilities are subject to short-term floating interest rates that approximate rates available to the Company.
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following tables present the Company’s assets and liabilities that are measured at fair value on a recurring basis at March 31, 2017 and December 31, 2016 , and the level within the fair value hierarchy: Fair Value Measurements at March 31, 2017 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other assets — trading interest rate caps (a) $ 96,813 $ — $ 96,813 $ — Due from affiliates — trading interest rate caps (a) 7,812 — 7,812 — Other assets — cash flow hedging interest rate swaps (a) 50,535 — 50,535 — Due from affiliates — cash flow hedging interest rate swaps (a) 6,330 — 6,330 — Other assets — trading interest rate swaps (a) 1,422 — 1,422 — Due from affiliates — trading interest rate swaps (a) 1,864 — 1,864 — Other liabilities — trading options for interest rate caps (a) 96,880 — 96,880 — Due to affiliates — trading options for interest rate caps (a) 7,812 — 7,812 — Other liabilities — cash flow hedging interest rate swaps (a) 220 — 220 — Due to affiliates — cash flow hedging interest rate swaps (a) 74 — 74 — Other liabilities — trading interest rate swaps (a) 14 — 14 — Due to affiliates — trading interest rate swaps (a) 13 — 13 — Other liabilities — total return settlement (a,b) 31,123 — — 31,123 Retail installment contracts acquired individually (c) 30,652 — — 30,652 Fair Value Measurements at December 31, 2016 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other assets — trading interest rate caps (a) $ 68,676 $ — $ 68,676 $ — Due from affiliates — trading interest rate caps (a) 7,593 — 7,593 — Other assets — cash flow hedging interest rate swaps (a) 41,471 — 41,471 — Due from affiliates — cash flow hedging interest rate swaps (a) 4,080 — 4,080 — Other assets — trading interest rate swaps (a) 783 — 783 — Due from affiliates — trading interest rate swaps (a) 1,292 — 1,292 — Other liabilities — trading options for interest rate caps (a) 68,688 — 68,688 — Due to affiliates — trading options for interest rate caps (a) 7,593 — 7,593 — Other liabilities — cash flow hedging interest rate swaps (a) 482 — 482 — Due to affiliates — cash flow hedging interest rate swaps (a) 451 — 451 — Other liabilities — trading interest rate swaps (a) 42 — 42 — Due to affiliates — trading interest rate swaps (a) 95 — 95 — Other liabilities — total return settlement (a,b) 30,618 — — 30,618 Retail installment contracts acquired individually (c) 24,495 — — 24,495 (a) The valuation is determined using widely accepted valuation techniques including a DCF on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivative, including the period to maturity, and uses observable market-based inputs. The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurement of its derivatives. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings and guarantees. The Company utilizes the exception in ASC 820-10-35-18D (commonly referred to as the “portfolio exception”) with respect to measuring counterparty credit risk for instruments (Note 7). (b) The significant unobservable inputs for total return settlement derivative contracts used in the fair value measurement of the Company's liabilities are discount percentages, which are based on comparable financial instruments. (c) For certain retail installment contracts reported in finance receivables held for investment, net, the Company has elected the fair value option. The fair values of the retail installment contracts are estimated using a DCF model. When estimating the fair value using this model, the Company uses significant unobservable inputs on key assumptions, which includes historical default rates and adjustments to reflect prepayment rates based on available data from a comparable market securitization of similar assets, discount rates reflective of the cost of funding of debt issuance and recent historical equity yields, and recovery rates based on the average severity utilizing reported severity rates and loss severity utilizing available market data from a comparable securitized pool. Accordingly, retail installment contracts held for investment are classified as Level 3. Changes in the fair value are recorded in investment gains (losses), net in the condensed consolidated statement of income.
Changes in Level 3 Balances, Assets	The following table presents the changes in retail installment contracts held for investment balances classified as Level 3 balances for the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 2016 Balance — beginning of period $ 24,495 $ 6,770 Additions / issuances 13,331 — Net collection activities (10,113 ) (3,924 ) Transfers to held for sale (12 ) — Gains recognized in earnings 2,951 1,293 Balance — end of period $ 30,652 $ 4,139
Change in Level 3 Balances, Liabilities	The following table presents the changes in the total return settlement balance, which is classified as Level 3, for the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 2016 Balance — beginning of period $ 30,618 $ 53,432 Losses recognized in earnings 505 1,316 Settlements — (955 ) Balance — end of period $ 31,123 $ 53,793
Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	The following table presents the Company’s assets that are measured at fair value on a nonrecurring basis at March 31, 2017 and December 31, 2016 , and the level within the fair value hierarchy: Fair Value Measurements at March 31, 2017 Total Quoted Prices Significant Significant Lower of cost or fair value expense Other assets — vehicles (a) $ 314,960 $ — $ 314,960 $ — $ — Personal loans held for sale (b) $ 979,103 $ — $ — $ 979,103 $ 64,639 Retail installment contracts held for sale (c) $ 876,916 $ — $ — $ 876,916 $ 1,482 Auto loans impaired due to bankruptcy (d) $ 54,929 $ — $ 54,929 $ — $ 23,600 Fair Value Measurements at December 31, 2016 Total Quoted Prices Significant Significant Lower of cost or fair value expense Other assets — vehicles (a) $ 257,382 $ — $ 257,382 $ — $ — Personal loans held for sale (b) $ 1,077,600 $ — $ — $ 1,077,600 $ 414,703 Retail installment contracts held for sale (c) $ 1,045,815 $ — $ — $ 1,045,815 $ 8,913 (a) The Company estimates the fair value of its vehicles, which are obtained either through repossession or lease termination, using historical auction rates and current market levels of used car prices. (b) Represents the portion of the portfolio specifically impaired as of period-end. The estimated fair value for personal loans held for sale is calculated based on a combination of estimated cash flows and market rates for similar loans with similar credit risks and a DCF analysis in which the Company uses significant unobservable inputs on key assumptions, including historical default rates and adjustments to reflect prepayment rates, discount rates reflective of the cost of funding, and credit loss expectations. The lower of cost or fair value adjustment for personal loans held for sale includes customer default activity and adjustments related to the net change in the portfolio balance during the reporting period. (c) The estimated fair value is calculated based on a DCF analysis in which the Company uses significant unobservable inputs on key assumptions, including expected default rates, prepayment rates, recovery rates, and discount rates reflective of the cost of funds and appropriate rate of returns. (d) For loans that are considered collateral-dependent, such as certain bankruptcy loans, impairment is measured based on the fair value of the collateral, less its estimated cost to sell. For the underlying collateral, the estimated fair value is obtained using historical auction rates and current market levels of used car prices.

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock Options and Related Activity	A summary of the Company’s stock options and related activity as of and for the three months ended March 31, 2017 is as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Options outstanding at January 1, 2017 4,295,830 $ 12.70 5.6 $ 12,982 Granted — — — — Exercised (263,703 ) 9.38 — 1,202 Expired (60,768 ) 9.63 — — Forfeited (443,617 ) 10.05 — — Options outstanding at March 31, 2017 (a) 3,527,742 13.34 5.5 — Options exercisable at March 31, 2017 2,953,556 $ 11.59 5.1 $ 5,122 (a) The stock options outstanding at March 31, 2017 had aggregate intrinsic values of zero as the aggregate exercise price was greater than the aggregate market value.

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Summary of Changes in Accumulated Other Comprehensive Income (Loss)	A summary of changes in accumulated other comprehensive income (loss), net of tax, for the three months ended March 31, 2017 and 2016 is as follows: Three Months Ended March 31, 2017 March 31, 2016 Beginning balance, unrealized gains (losses) on cash flow hedges $ 28,259 $ 2,125 Other comprehensive income (loss) before reclassifications 9,900 (45,762 ) Amounts reclassified out of accumulated other comprehensive income (loss) (a) (2,655 ) 7,572 Ending balance, unrealized losses on cash flow hedges $ 35,504 $ (36,065 ) (a) Amounts reclassified out of accumulated other comprehensive income (loss) during the three months ended March 31, 2017 and 2016 consist of the following: Three Months Ended March 31, 2017 Three Months Ended March 31, 2016 Reclassification Amount reclassified Income statement line item Amount reclassified Income statement line item Cash flow hedges: Settlements of derivatives $ (4,240 ) Interest expense $ 12,082 Interest expense Tax expense (benefit) 1,585 (4,510 ) Net of tax $ (2,655 ) $ 7,572
Reclassification of Amounts Out of Accumulated Other Comprehensive Income (Loss)	Amounts reclassified out of accumulated other comprehensive income (loss) during the three months ended March 31, 2017 and 2016 consist of the following: Three Months Ended March 31, 2017 Three Months Ended March 31, 2016 Reclassification Amount reclassified Income statement line item Amount reclassified Income statement line item Cash flow hedges: Settlements of derivatives $ (4,240 ) Interest expense $ 12,082 Interest expense Tax expense (benefit) 1,585 (4,510 ) Net of tax $ (2,655 ) $ 7,572

Investment Losses, Net (Tables)

Investment Losses, Net (Tables)	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Schedule of Investment Losses, Net	Investment losses, net was comprised of the following for the three months ended March 31, 2017 and 2016 : Three Months Ended March 31, 2017 March 31, 2016 Gain (loss) on sale of loans and leases $ (10,882 ) $ 1,608 Lower of cost or market adjustments (66,121 ) (64,213 ) Other gains, losses and impairments, net 604 (6,451 ) $ (76,399 ) $ (69,056 )

Description of Business, Basi39

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices - Additional Information (Details)	3 Months Ended
	Mar. 31, 2017segment
Basis Of Presentation And Significant Accounting Policies [Line Items]
Number of reportable segments	1
SHUSA
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership percentage held in the Company	58.70%
Public Shareholders
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership percentage held in the Company	31.50%
DDFS LLC
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership percentage held in the Company	9.70%
Other Holders
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership percentage held in the Company	0.10%
FCA
Basis Of Presentation And Significant Accounting Policies [Line Items]
Financing contract term	10 years

Description of Business, Basi40

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices - Recently Adopted Accounting Standards (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative-effect adjustment upon adoption of ASU 2016-09 (Note 1)		$ 26,552
Excess tax benefits, net of tax	$ 47
Retained Earnings
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative-effect adjustment upon adoption of ASU 2016-09 (Note 1)		25,113
New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-09, Excess Tax Benefit Component | Retained Earnings
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative-effect adjustment upon adoption of ASU 2016-09 (Note 1)		26,552
New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-09, Forfeiture Rate Component | Retained Earnings
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative-effect adjustment upon adoption of ASU 2016-09 (Note 1)		$ (1,439)

Finance Receivables - Summary o

Finance Receivables - Summary of Financing Receivables Held for Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased receivables	$ 146,150	$ 158,264
Capital lease receivables	21,222	22,034
Finance receivables held for investment, net	23,444,625	23,481,001
Retail installment contracts acquired individually	30,652	24,495
Purchased receivables portfolios acquired with deteriorated credit quality:
Outstanding balance	212,018	231,360
Outstanding recorded investment, net of impairment	147,094	159,451
Retail Installment Contracts Acquired Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	23,200,111	23,219,724
Retail Installment Contracts Acquired Individually | Non-TDR
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	19,099,385	19,317,593
Retail Installment Contracts Acquired Individually | Non-TDR | Unpaid principal balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	21,286,466	21,528,406
Retail Installment Contracts Acquired Individually | Non-TDR | Credit loss allowance - specific
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	0	0
Retail Installment Contracts Acquired Individually | Non-TDR | Credit loss allowance - collective
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	(1,836,730)	(1,799,760)
Retail Installment Contracts Acquired Individually | Non-TDR | Discount
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	(409,142)	(467,757)
Retail Installment Contracts Acquired Individually | Non-TDR | Capitalized origination costs and fees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	58,791	56,704
Retail Installment Contracts Acquired Individually | TDR
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	4,100,726	3,902,131
Retail Installment Contracts Acquired Individually | TDR | Unpaid principal balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	5,788,390	5,599,567
Retail Installment Contracts Acquired Individually | TDR | Credit loss allowance - specific
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	(1,604,489)	(1,611,295)
Retail Installment Contracts Acquired Individually | TDR | Credit loss allowance - collective
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	0	0
Retail Installment Contracts Acquired Individually | TDR | Discount
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	(88,546)	(91,359)
Retail Installment Contracts Acquired Individually | TDR | Capitalized origination costs and fees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	5,371	5,218
Receivables from Dealers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	69,643	68,707
Receivables from Dealers | Unpaid principal balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	70,377	69,431
Receivables from Dealers | Credit loss allowance - specific
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	0	0
Receivables from Dealers | Credit loss allowance - collective
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	(734)	(724)
Receivables from Dealers | Discount
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	0	0
Receivables from Dealers | Capitalized origination costs and fees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	0	0
Personal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	7,499	12,272
Personal Loans | Unpaid principal balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	15,412	19,361
Personal Loans | Credit loss allowance - specific
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	0	0
Personal Loans | Credit loss allowance - collective
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	(4,517)	0
Personal Loans | Discount
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	(3,822)	(7,721)
Personal Loans | Capitalized origination costs and fees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables held for investment, net	$ 426	$ 632

Finance Receivables - Additiona

Finance Receivables - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Schedule Of Financing Receivables [Line Items]
Purchases of portfolios of finance receivables held for investment	$ 152,208,000	$ 95,596,000
Credit facility	4,958,638,000		$ 6,739,817,000
Accrued interest receivable	$ 306,742,000		373,274,000
Texas
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)	16.00%
Florida
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)	13.00%
California
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)	9.00%
Georgia
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)	6.00%
Other States (less than 5%)
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)	5.00%
Virginia
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment	50.00%
New York
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment	23.00%
Mississippi
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment	18.00%
Missouri
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment	8.00%
Wisconsin
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment	1.00%
Fleet Contracts
Schedule Of Financing Receivables [Line Items]
Financing receivable, net	$ 764,611,000		848,918,000
Receivables from Dealers
Schedule Of Financing Receivables [Line Items]
Committed amount	50,000,000		50,000,000
Credit facility	50,000,000		50,000,000
Accrued interest receivable	$ 169,000		165,000
Retail Installment Contracts
Schedule Of Financing Receivables [Line Items]
Loans classified as non-performing, period for classification	60 days
Personal Loans | Consumer Portfolio Segment
Schedule Of Financing Receivables [Line Items]
Financing receivable, net	$ 7,042,000		11,733,000
Unpaid principal balance | Retail Installment Contracts
Schedule Of Financing Receivables [Line Items]
Financing receivables recognized in period	152,208,000
Nonperforming Financial Instruments | Unpaid principal balance | Personal Loans | Consumer Portfolio Segment
Schedule Of Financing Receivables [Line Items]
Financing receivable, net	457,000		539,000
Chrysler Capital Loans
Schedule Of Financing Receivables [Line Items]
Purchases of portfolios of finance receivables held for investment	1,588,506,000	2,549,249,000
Chrysler Capital Loans | Automobile Loan | Retail Installment Contracts
Schedule Of Financing Receivables [Line Items]
Financing receivable, net	7,147,687,000		$ 7,365,444,000
Chrysler Capital Leases
Schedule Of Financing Receivables [Line Items]
Purchases of portfolios of finance receivables held for investment	$ 1,600,659,000	$ 1,617,080,000
Credit Concentration Risk | Accounts receivable | Chrysler Capital Loans
Schedule Of Financing Receivables [Line Items]
Concentration risk percentage	42.00%	49.00%
Credit Concentration Risk | Accounts receivable | Chrysler Capital Leases | Automobile Loan
Schedule Of Financing Receivables [Line Items]
Concentration risk percentage	31.00%	32.00%

Finance Receivables - Changes i

Finance Receivables - Changes in Accretable Yield on Purchased Receivables Portfolios (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance — beginning of period	$ 107,041	$ 178,582
Accretion of accretable yield	(11,144)	(21,329)
Reclassifications from (to) nonaccretable difference	2,049	(917)
Balance — end of period	$ 97,946	$ 156,336

Finance Receivables - Schedule

Finance Receivables - Schedule of Carrying Values of Finance Receivables Held for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables held for sale, carrying value	$ 1,856,019	$ 2,123,415
Retail installment contracts acquired individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables held for sale, carrying value	876,916	1,045,815
Personal loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables held for sale, carrying value	$ 979,103	$ 1,077,600

Finance Receivables - Schedul45

Finance Receivables - Schedule of Sales of Retail Installment Contracts and Charged-off Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Receivables [Abstract]
Sales of retail installment contracts to third parties	$ 230,568	$ 859,955
Proceeds from sales of charged-off assets	$ 21,343	$ 6,230

Finance Receivables - Schedul46

Finance Receivables - Schedule of Servicing of Retail Installment Contracts (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Receivables [Abstract]
Serviced balance of retail installment contracts and leases sold to third parties	$ 8,926,456	$ 10,116,788

Leases - Summary of Leased Vehi

Leases - Summary of Leased Vehicles (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Leases [Abstract]
Leased vehicles	$ 12,442,141	$ 11,939,295
Less: accumulated depreciation	(2,394,567)	(2,326,342)
Depreciated net capitalized cost	10,047,574	9,612,953
Manufacturer subvention payments	(1,141,194)	(1,066,531)
Origination fees and other costs	21,156	18,206
Net book value	$ 8,927,536	$ 8,564,628

Leases - Future Minimum Rental

Leases - Future Minimum Rental Payments Due to Lessor under Operating Leases (Details) $ in Thousands	Mar. 31, 2017USD ($)
Leases [Abstract]
Remainder of 2017	$ 1,191,931
2,018	1,091,466
2,019	445,100
2,020	28,504
2,021	79
Thereafter	0
Total	$ 2,757,080

Leases - Summary of Capital Lea

Leases - Summary of Capital Lease Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Leases [Abstract]
Gross investment in capital leases	$ 33,657	$ 39,417
Origination fees and other	68	150
Less unearned income	(5,898)	(7,545)
Net investment in capital leases before allowance	27,827	32,022
Less: allowance for lease losses	(6,605)	(9,988)
Net investment in capital leases	$ 21,222	$ 22,034

Leases - Future Minimum Renta50

Leases - Future Minimum Rental Receivable under Capital Leases (Details) $ in Thousands	Mar. 31, 2017USD ($)
Leases [Abstract]
Remainder of 2017	$ 10,365
2,018	13,195
2,019	6,280
2,020	2,495
2,021	1,322
Thereafter	0
Total	$ 33,657

Credit Loss Allowance and Cre51

Credit Loss Allowance and Credit Quality - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Chrysler Capital
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan origination, required minimum payment, percentage of scheduled payment		90.00%
Third Party
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan origination, required minimum payment, percentage of scheduled payment	90.00%	50.00%
Retail Installment Contracts
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans classified as non-performing, period for classification	60 days
Receivables From Dealers
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	$ 734,000	$ 724,000	$ 1,403,000	$ 916,000
Loans classified as non-performing, period for classification	90 days
Receivables that were 31 days or more delinquent	$ 0	0
Receivables classified as a TDR	0	0
Retail Installment Contracts Held-for-sale
Financing Receivable, Allowance for Credit Losses [Line Items]
Receivables that were 31 days or more delinquent	27,617,000	33,886,000
Retail Installment Contracts Acquired Individually
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	$ 3,441,219,000	$ 3,411,055,000	3,320,227,000	$ 3,197,414,000
TDRs, deferral period	90 days
Unpaid principal balance | Receivables From Dealers
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing receivable, net			5,965,000
Credit loss allowance - collective | Receivables From Dealers
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses			978,000
Credit loss allowance - specific | Receivables From Dealers
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses			$ 425,000

Credit Loss Allowance and Cre52

Credit Loss Allowance and Credit Quality - Summary of Activity in Loan Loss Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Retail Installment Contracts Acquired Individually
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	$ 3,411,055	$ 3,197,414	$ 3,197,414
Provision for credit losses	629,097	663,126
Charge-offs	(1,224,697)	(1,150,628)
Recoveries	625,764	610,315
Balance — end of period	3,441,219	3,320,227	3,411,055
Partial write-down of loans	24,000
Receivables from Dealers
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	724	916	916
Provision for credit losses	10	487
Charge-offs	0	0
Recoveries	0	0
Balance — end of period	734	1,403	724
Personal Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	0
Provision for credit losses	7,975
Charge-offs	(3,632)
Recoveries	174
Balance — end of period	4,517		0
Finance Leases Portfolio Segment
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	9,988	19,878	19,878
Provision for credit losses	(2,069)	(1,547)
Charge-offs	(3,679)	(12,359)
Recoveries	2,365	9,888
Balance — end of period	$ 6,605	$ 15,860	$ 9,988

Credit Loss Allowance and Cre53

Credit Loss Allowance and Credit Quality - Summary of Impairment Activity Related to Purchased Receivables Portfolios (Details) - Purchased Receivables Portfolios - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	$ 169,323	$ 172,308
Incremental provisions for purchased receivables portfolios	0	0
Incremental reversal of provisions for purchased receivables portfolios	0	(1,896)
Balance — end of period	$ 169,323	$ 170,412

Credit Loss Allowance and Cre54

Credit Loss Allowance and Credit Quality - Summary of Delinquencies (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Recorded Investment Past Due [Line Items]
Principal, 30-59 days past due	$ 2,345,995	$ 2,925,503
Delinquent principal over 59 days	1,153,369	1,526,743
Total delinquent principal	3,499,364	4,452,246
Loans Acquired Individually
Financing Receivable Recorded Investment Past Due [Line Items]
Principal, 30-59 days past due	2,336,113	2,911,800
Delinquent principal over 59 days	1,148,517	1,520,105
Total delinquent principal	3,484,630	4,431,905
Purchased Receivables Portfolios
Financing Receivable Recorded Investment Past Due [Line Items]
Principal, 30-59 days past due	9,882	13,703
Delinquent principal over 59 days	4,852	6,638
Total delinquent principal	$ 14,734	$ 20,341

Credit Loss Allowance and Cre55

Credit Loss Allowance and Credit Quality - Summary of Credit Risk Profile (Details) - Retail Installment Contracts Held for Investment	Mar. 31, 2017	Dec. 31, 2016
Commercial Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	2.80%	3.10%
Consumer Portfolio Segment | No-FICOs
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	12.00%	12.20%
Consumer Portfolio Segment | Under 540
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	22.30%	22.10%
Consumer Portfolio Segment | 540-599
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	31.70%	31.40%
Consumer Portfolio Segment | 600-639
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	17.40%	17.40%
Consumer Portfolio Segment | Over 640
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	13.80%	13.80%

Credit Loss Allowance and Cre56

Credit Loss Allowance and Credit Quality - Summary Commercial Loan Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fleet Contracts
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	$ 764,611	$ 848,918
Fleet Contracts | Total
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	67,855	21,863
Fleet Contracts | Pass
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	49,752	17,585
Fleet Contracts | Special Mention
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	15,282	2,790
Fleet Contracts | Substandard
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	2,696	1,488
Fleet Contracts | Doubtful
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	0	0
Fleet Contracts | Loss
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	125	0
Receivables From Dealers | Total
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	70,377	69,431
Receivables From Dealers | Pass
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	68,672	67,681
Receivables From Dealers | Special Mention
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	0	0
Receivables From Dealers | Substandard
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	1,705	1,750
Receivables From Dealers | Doubtful
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	0	0
Receivables From Dealers | Loss
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	$ 0	$ 0

Credit Loss Allowance and Cre57

Credit Loss Allowance and Credit Quality - Summary of TDRs (Details) - Retail Installment Contracts - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Modifications [Line Items]
Outstanding recorded investment	$ 5,785,032	$ 5,637,792
Impairment	(1,604,489)	(1,611,295)
Outstanding recorded investment, net of impairment	4,180,543	$ 4,026,497
Collateral Dependent
Financing Receivable Modifications [Line Items]
Outstanding recorded investment	14,700
TDR write down	$ 7,600

Credit Loss Allowance and Cre58

Credit Loss Allowance and Credit Quality - Summary of Delinquent TDRs (Details) - Retail Installment Contracts - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Troubled Debt Restructuring Debtor Current Period [Line Items]
Principal, 30-59 days past due	$ 1,078,637	$ 1,253,848
Delinquent principal over 59 days	579,262	736,691
Total delinquent TDR principal	$ 1,657,899	$ 1,990,539

Credit Loss Allowance and Cre59

Credit Loss Allowance and Credit Quality - Average Recorded Investment and Income Recognized on TDR Loans (Details) - Retail Installment Contracts - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Financing Receivable Modifications [Line Items]
Average outstanding recorded investment in TDRs	$ 5,711,412	$ 4,666,713
Interest income recognized	$ 260,352	$ 174,191

Credit Loss Allowance and Cre60

Credit Loss Allowance and Credit Quality - Summary of Financial Effects of TDRs (Details) - Retail Installment Contracts $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)contract	Mar. 31, 2016USD ($)contract
Financing Receivable Modifications [Line Items]
Outstanding recorded investment before TDR	$ 881,699	$ 692,928
Outstanding recorded investment after TDR	$ 866,278	$ 699,286
Number of contracts (not in thousands) | contract	49,499	39,380

Credit Loss Allowance and Cre61

Credit Loss Allowance and Credit Quality - Summary of Loan Restructuring Accounted for as TDRs (Details) - Retail Installment Contracts $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)contract	Mar. 31, 2016USD ($)contract
Financing Receivable Modifications [Line Items]
Recorded investment in TDRs that subsequently defaulted | $	$ 211,697	$ 199,862
Number of contracts (not in thousands) | contract	11,894	11,402

Debt - Schedule of Credit Facil

Debt - Schedule of Credit Facilities (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Line Of Credit Facility [Line Items]
Utilized Balance	$ 4,958,638,000	$ 6,739,817,000
Unsecured Debt
Line Of Credit Facility [Line Items]
Utilized Balance	1,623,538,000	1,316,568,000
Total facilities with third parties
Line Of Credit Facility [Line Items]
Utilized Balance	4,958,638,000	6,739,817,000
Committed Amount	10,670,501,000	10,393,309,000
Assets Pledged	6,159,818,000	8,606,745,000
Restricted Cash Pledged	$ 177,552,000	$ 188,730,000
Warehouse line, due January 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-01	2018-01
Utilized Balance	$ 168,084,000	$ 153,784,000
Committed Amount	$ 500,000,000	$ 500,000,000
Effective Rate	2.84%	3.17%
Assets Pledged	$ 213,200,000	$ 213,578,000
Restricted Cash Pledged	$ 0	$ 0
Warehouse line, due Various
Line Of Credit Facility [Line Items]
Maturity date, various	Various	Various
Utilized Balance	$ 232,045,000	$ 462,085,000
Committed Amount	$ 1,250,000,000	$ 1,250,000,000
Effective Rate	3.73%	2.52%
Assets Pledged	$ 326,912,000	$ 653,014,000
Restricted Cash Pledged	$ 11,207,000	$ 14,916,000
Warehouse line, due August 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-08	2018-08
Utilized Balance	$ 216,520,000	$ 534,220,000
Committed Amount	$ 780,000,000	$ 780,000,000
Effective Rate	3.30%	1.98%
Assets Pledged	$ 281,270,000	$ 608,025,000
Restricted Cash Pledged	$ 6,946,000	$ 24,520,000
Warehouse line, due August 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-08	2018-08
Utilized Balance	$ 2,018,143,000	$ 3,119,943,000
Committed Amount	$ 3,120,000,000	$ 3,120,000,000
Effective Rate	2.29%	1.91%
Assets Pledged	$ 3,067,595,000	$ 4,700,774,000
Restricted Cash Pledged	$ 64,912,000	$ 70,991,000
Warehouse line, due October 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-10	2018-10
Utilized Balance	$ 435,477,000	$ 702,377,000
Committed Amount	$ 1,800,000,000	$ 1,800,000,000
Effective Rate	3.31%	2.51%
Assets Pledged	$ 620,916,000	$ 994,684,000
Restricted Cash Pledged	$ 10,000,000	$ 23,378,000
Repurchase facility, due December 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-12	2017-12
Utilized Balance	$ 328,608,000	$ 507,800,000
Committed Amount	$ 328,608,000	$ 507,800,000
Effective Rate	3.32%	2.83%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 14,012,000	$ 22,613,000
Repurchase facility, due April 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-04	2017-04
Utilized Balance	$ 235,509,000	$ 235,509,000
Committed Amount	$ 235,509,000	$ 235,509,000
Effective Rate	2.04%	2.04%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	$ 0
Repurchase facility, due March 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-03
Utilized Balance	$ 147,182,000
Committed Amount	$ 147,182,000
Effective Rate	3.31%
Assets Pledged	$ 0
Restricted Cash Pledged	$ 0
Repurchase facility, due April 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-04
Utilized Balance	$ 59,202,000
Committed Amount	$ 59,202,000
Effective Rate	2.09%
Assets Pledged	$ 0
Restricted Cash Pledged	$ 0
Warehouse line, due November 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-11	2018-11
Utilized Balance	$ 301,199,000	$ 578,999,000
Committed Amount	$ 1,000,000,000	$ 1,000,000,000
Effective Rate	2.51%	1.56%
Assets Pledged	$ 451,750,000	$ 850,758,000
Restricted Cash Pledged	$ 7,902,000	$ 17,642,000
Warehouse line, due July 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-07
Utilized Balance	$ 235,784,000
Committed Amount	$ 250,000,000
Effective Rate	3.25%
Assets Pledged	$ 500,095,000
Restricted Cash Pledged	$ 44,377,000
Warehouse line, due October 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-10	2018-10
Utilized Balance	$ 132,365,000	$ 202,000,000
Committed Amount	$ 400,000,000	$ 400,000,000
Effective Rate	2.91%	2.22%
Assets Pledged	$ 189,416,000	$ 290,867,000
Restricted Cash Pledged	$ 2,671,000	$ 5,435,000
Warehouse line, due November 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-11	2018-11
Utilized Balance	$ 174,720,000	$ 0
Committed Amount	$ 500,000,000	$ 500,000,000
Effective Rate	2.16%	2.07%
Assets Pledged	$ 186,481,000	$ 0
Restricted Cash Pledged	$ 4,722,000	$ 0
Warehouse line, due October 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-10	2017-10
Utilized Balance	$ 273,800,000	$ 243,100,000
Committed Amount	$ 300,000,000	$ 300,000,000
Effective Rate	2.44%	2.38%
Assets Pledged	$ 322,183,000	$ 295,045,000
Restricted Cash Pledged	10,803,000	9,235,000
Total facilities with Santander and related subsidiaries
Line Of Credit Facility [Line Items]
Utilized Balance		2,975,000,000
Committed Amount		6,300,000,000
Assets Pledged		0
Restricted Cash Pledged		$ 0
Total facilities with Santander and related subsidiaries | Santander and Related Subsidiaries
Line Of Credit Facility [Line Items]
Utilized Balance	2,850,000,000
Committed Amount	6,950,000,000
Assets Pledged	0
Restricted Cash Pledged	$ 0
Line of credit, due December 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-12	2017-12
Utilized Balance	$ 500,000,000	$ 500,000,000
Committed Amount	$ 500,000,000	$ 500,000,000
Effective Rate	3.24%	3.04%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	$ 0
Line of credit, due December 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-12	2018-12
Utilized Balance	$ 0	$ 175,000,000
Committed Amount	$ 500,000,000	$ 500,000,000
Effective Rate	3.89%	3.87%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	$ 0
Line of credit, due December 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-12	2017-12
Utilized Balance	$ 1,000,000,000	$ 1,000,000,000
Committed Amount	$ 1,000,000,000	$ 1,000,000,000
Effective Rate	2.83%	2.86%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	$ 0
Line of credit, due December 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-12	2018-12
Utilized Balance	$ 400,000,000	$ 1,000,000,000
Committed Amount	$ 1,000,000,000	$ 1,000,000,000
Effective Rate	3.36%	2.88%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	0	$ 0
Line of credit, due December 2018 | Subsidiaries
Line Of Credit Facility [Line Items]
Committed Amount	$ 750,000,000
Line of credit, due December 2018 | Minimum | LIBOR | Subsidiaries
Line Of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	0.60%
Line of credit, due December 2018 | Maximum | LIBOR | Subsidiaries
Line Of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	0.90%
Promissory Note, due March 2019 | Santander and Related Subsidiaries
Line Of Credit Facility [Line Items]
Maturity Date	2019-03
Utilized Balance	$ 300,000,000
Committed Amount	$ 300,000,000
Effective Rate	2.45%
Assets Pledged	$ 0
Restricted Cash Pledged	$ 0
Promissory Note, due March 2022 | Santander and Related Subsidiaries
Line Of Credit Facility [Line Items]
Maturity Date	2022-03
Utilized Balance	$ 650,000,000
Committed Amount	$ 650,000,000
Effective Rate	4.20%
Assets Pledged	$ 0
Restricted Cash Pledged	$ 0
Line of credit, due March 2017
Line Of Credit Facility [Line Items]
Maturity Date		2017-03
Utilized Balance		$ 300,000,000
Committed Amount		$ 300,000,000
Effective Rate		2.25%
Assets Pledged		$ 0
Restricted Cash Pledged		$ 0
Line of credit, due March 2019
Line Of Credit Facility [Line Items]
Maturity Date	2019-03	2019-03
Utilized Balance	$ 0	$ 0
Committed Amount	$ 3,000,000,000	$ 3,000,000,000
Effective Rate	3.94%	3.74%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	0	0
Revolving credit facilities
Line Of Credit Facility [Line Items]
Utilized Balance	7,808,638,000	9,714,817,000
Committed Amount	17,620,501,000	16,693,309,000
Assets Pledged	6,159,818,000	8,606,745,000
Restricted Cash Pledged	$ 177,552,000	$ 188,730,000
Repurchase Facilities
Line Of Credit Facility [Line Items]
Debt term	1 year

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 06, 2017	Dec. 31, 2016	Mar. 06, 2014
Debt Instrument [Line Items]
Private issuance of notes backed by vehicle leases	$ 5,158,859,000			$ 3,862,274,000
Interest expense on secured structured financing	124,065,000	$ 94,376,000
Principal payments during period	0
Interest payments during period	0
Amortization of debt issuance costs	8,729,000	$ 6,119,000
Revolving credit facilities
Debt Instrument [Line Items]
Committed amount	17,620,501,000			$ 16,693,309,000
Total facilities with Santander and related subsidiaries
Debt Instrument [Line Items]
Committed amount	$ 3,000,000,000
Total facilities with Santander and related subsidiaries | Maturity Year One
Debt Instrument [Line Items]
Debt term	3 years
Credit facility maturity date	Dec. 31, 2017
Total facilities with Santander and related subsidiaries | Maturity Year Two
Debt Instrument [Line Items]
Debt term	5 years
Credit facility maturity date	Dec. 31, 2018
Total facilities with Santander and related subsidiaries | Revolving credit facilities | Secured Debt
Debt Instrument [Line Items]
Committed amount	$ 3,000,000,000
Santander Consumer ABS Funding 2, LLC
Debt Instrument [Line Items]
Committed amount					$ 300,000,000
Santander Consumer ABS Funding 2, LLC | Promissory Note
Debt Instrument [Line Items]
Debt, principal			$ 300,000,000
Principal payments during period	0
Interest payments during period	$ 0
Santander Consumer ABS Funding 2, LLC | LIBOR | Promissory Note
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.35%
SC Illinois | Promissory Note
Debt Instrument [Line Items]
Debt, principal	$ 650,000,000
Stated interest rate	4.20%

Debt - Summary of Secured Struc

Debt - Summary of Secured Structured Financings (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Balance	$ 23,666,666	$ 21,608,889
Secured Structured Financings
Debt Instrument [Line Items]
Balance	23,666,666	21,608,889
Initial Note Amounts Issued	46,404,153	46,472,073
Collateral	31,979,198	29,496,411
Restricted Cash	2,274,237	1,924,467
Secured Structured Financings | Securitizations
Debt Instrument [Line Items]
Balance	14,791,358	13,436,482
Initial Note Amounts Issued	33,958,912	32,386,082
Collateral	19,098,090	17,474,524
Restricted Cash	$ 1,641,484	$ 1,423,599
Secured Structured Financings | 2012 Securitizations
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2018-09	2018-09
Balance	$ 69,677	$ 197,470
Initial Note Amounts Issued	$ 1,025,540	2,525,540
Initial Weighted Average Interest Rate	1.23%
Collateral	$ 113,867	312,710
Restricted Cash	31,277	$ 73,733
Secured Structured Financings | 2012 Securitizations | Minimum
Debt Instrument [Line Items]
Initial Weighted Average Interest Rate		0.92%
Secured Structured Financings | 2012 Securitizations | Maximum
Debt Instrument [Line Items]
Initial Weighted Average Interest Rate		1.23%
Secured Structured Financings | 2013 Securitizations
Debt Instrument [Line Items]
Balance	992,709	$ 1,172,904
Initial Note Amounts Issued	6,689,700	6,689,700
Collateral	1,272,176	1,484,014
Restricted Cash	$ 228,108	$ 222,187
Secured Structured Financings | 2013 Securitizations | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2019-01	2019-01
Initial Weighted Average Interest Rate	0.89%	0.89%
Secured Structured Financings | 2013 Securitizations | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2021-03	2021-01
Initial Weighted Average Interest Rate	1.59%	1.59%
Secured Structured Financings | 2014 Securitizations
Debt Instrument [Line Items]
Balance	$ 1,648,799	$ 1,858,600
Initial Note Amounts Issued	6,391,020	6,391,020
Collateral	2,071,309	2,360,939
Restricted Cash	$ 257,629	$ 250,806
Secured Structured Financings | 2014 Securitizations | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2020-02	2020-02
Initial Weighted Average Interest Rate	1.16%	1.16%
Secured Structured Financings | 2014 Securitizations | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2022-04	2021-01
Initial Weighted Average Interest Rate	1.72%	1.72%
Secured Structured Financings | 2015 Securitizations
Debt Instrument [Line Items]
Balance	$ 3,802,864	$ 4,326,292
Initial Note Amounts Issued	9,264,432	9,317,032
Collateral	5,073,548	5,743,884
Restricted Cash	$ 489,225	$ 468,787
Secured Structured Financings | 2015 Securitizations | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2019-09	2019-09
Initial Weighted Average Interest Rate	1.33%	1.33%
Secured Structured Financings | 2015 Securitizations | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2023-01	2023-01
Initial Weighted Average Interest Rate	2.29%	2.29%
Secured Structured Financings | 2016 Securitizations
Debt Instrument [Line Items]
Balance	$ 5,266,504	$ 5,881,216
Initial Note Amounts Issued	7,462,790	7,462,790
Collateral	6,802,736	7,572,977
Restricted Cash	$ 459,748	$ 408,086
Secured Structured Financings | 2016 Securitizations | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2022-04	2022-04
Initial Weighted Average Interest Rate	1.63%	1.63%
Secured Structured Financings | 2016 Securitizations | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2024-03	2024-03
Initial Weighted Average Interest Rate	2.80%	2.46%
Secured Structured Financings | 2017 Securitizations
Debt Instrument [Line Items]
Balance	$ 3,010,805
Initial Note Amounts Issued	3,125,430
Collateral	3,764,454
Restricted Cash	$ 175,497
Secured Structured Financings | 2017 Securitizations | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2023-04
Initial Weighted Average Interest Rate	2.01%
Secured Structured Financings | 2017 Securitizations | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2024-07
Initial Weighted Average Interest Rate	2.43%
Secured Structured Financings | Privately issued amortizing notes
Debt Instrument [Line Items]
Balance	$ 8,875,308	$ 8,172,407
Initial Note Amounts Issued	12,445,241	14,085,991
Collateral	12,881,108	12,021,887
Restricted Cash	$ 632,753	$ 500,868
Secured Structured Financings | 2010 Private issuances
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2011-06	2011-06
Balance	$ 99,172	$ 113,157
Initial Note Amounts Issued	$ 516,000	516,000
Initial Weighted Average Interest Rate	1.29%
Collateral	$ 198,524	213,235
Restricted Cash	$ 7,117	$ 6,270
Secured Structured Financings | 2010 Private issuances | Minimum
Debt Instrument [Line Items]
Initial Weighted Average Interest Rate		1.29%
Secured Structured Financings | 2011 Private issuances
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2018-12	2018-12
Balance	$ 237,745	$ 342,369
Initial Note Amounts Issued	$ 1,700,000	1,700,000
Initial Weighted Average Interest Rate	1.46%
Collateral	$ 517,516	617,945
Restricted Cash	$ 33,863	$ 31,425
Secured Structured Financings | 2011 Private issuances | Minimum
Debt Instrument [Line Items]
Initial Weighted Average Interest Rate		1.46%
Secured Structured Financings | 2013 Private issuances
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2018-09
Balance	$ 2,988,296	$ 2,375,964
Initial Note Amounts Issued	2,044,054	2,693,754
Collateral	5,064,575	4,122,963
Restricted Cash	$ 237,078	$ 164,740
Secured Structured Financings | 2013 Private issuances | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates		2018-09
Initial Weighted Average Interest Rate	1.28%	1.13%
Secured Structured Financings | 2013 Private issuances | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates		2020-09
Initial Weighted Average Interest Rate	1.38%	1.38%
Secured Structured Financings | 2014 Private issuances
Debt Instrument [Line Items]
Balance	$ 264,411	$ 643,428
Initial Note Amounts Issued	1,530,125	3,271,175
Collateral	382,536	1,129,506
Restricted Cash	$ 50,425	$ 68,072
Secured Structured Financings | 2014 Private issuances | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2018-03	2018-03
Initial Weighted Average Interest Rate	1.05%	1.05%
Secured Structured Financings | 2014 Private issuances | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2021-11	2021-12
Initial Weighted Average Interest Rate	1.40%	1.40%
Secured Structured Financings | 2015 Private issuances
Debt Instrument [Line Items]
Balance	$ 1,984,521	$ 2,185,166
Initial Note Amounts Issued	2,605,062	2,855,062
Collateral	1,998,100	2,384,661
Restricted Cash	$ 169,635	$ 140,269
Secured Structured Financings | 2015 Private issuances | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2016-12	2016-12
Initial Weighted Average Interest Rate	0.88%	0.88%
Secured Structured Financings | 2015 Private issuances | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2019-07	2019-07
Initial Weighted Average Interest Rate	2.81%	2.81%
Secured Structured Financings | 2016 Private issuances
Debt Instrument [Line Items]
Balance	$ 2,262,387	$ 2,512,323
Initial Note Amounts Issued	3,050,000	3,050,000
Collateral	3,218,736	3,553,577
Restricted Cash	$ 117,809	$ 90,092
Secured Structured Financings | 2016 Private issuances | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2020-05	2020-05
Initial Weighted Average Interest Rate	1.55%	1.55%
Secured Structured Financings | 2016 Private issuances | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2024-09	2024-09
Initial Weighted Average Interest Rate	2.86%	2.86%
Secured Structured Financings | 2017 Private Issuances
Debt Instrument [Line Items]
Balance	$ 1,038,776
Initial Note Amounts Issued	1,000,000
Collateral	1,501,121
Restricted Cash	$ 16,826
Secured Structured Financings | 2017 Private Issuances | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2021-04
Initial Weighted Average Interest Rate	1.85%
Secured Structured Financings | 2017 Private Issuances | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2021-09
Initial Weighted Average Interest Rate	2.27%

Variable Interest Entities - Su

Variable Interest Entities - Summary of Cash Flows Received from Securitization Trusts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Variable Interest Entity [Line Items]
Assets securitized	$ 7,646,625	$ 3,657,955
Net proceeds from new securitizations	5,576,801	2,702,004
Net proceeds from sale of retained bonds	115,970	0
Cash received for servicing fees	208,923	194,365
Net distributions from Trusts	678,229	629,726
Total cash received from Trusts	6,579,923	3,526,095
VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Assets securitized	700,022	0
Net proceeds from new securitizations	702,319	0
Cash received for servicing fees	1,398	15,701
Total cash received from Trusts	$ 703,717	$ 15,701

Variable Interest Entities - Ad

Variable Interest Entities - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Gross retail installment contracts transferred and serviced	$ 27,651,173,000	$ 27,802,971,000
VIE, Not Primary Beneficiary
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Gross retail installment contracts transferred and serviced	2,943,905,000	$ 2,741,101,000
Sales of receivables securitization	700,022,000
Loss on retail installment contracts	2,719,000
Maximum exposure to loss, involvement with the VIE	$ 0

Variable Interest Entities - Of

Variable Interest Entities - Off-balance Sheet Variable Interest Entities Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Total serviced for others portfolio	$ 27,651,173	$ 27,802,971
VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total serviced for others portfolio	2,943,905	2,741,101
Chrysler Capital securitizations | VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total serviced for others portfolio	2,188,452	2,472,756
Other third parties | VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total serviced for others portfolio	89,107	268,345
Third parties | VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total serviced for others portfolio	2,277,559	2,741,101
Santander | VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total serviced for others portfolio	$ 666,346	$ 0

Derivative Financial Instrume68

Derivative Financial Instruments - Summary of Underlying Notional Amounts and Aggregate Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Interest rate swaps | Designated as Cash Flow Hedges
Derivative [Line Items]
Notional	$ 7,045,800	$ 7,854,700
Fair Value	56,573	44,618
Interest rate swaps | Not Designated As Hedges
Derivative [Line Items]
Notional	813,700	1,019,900
Fair Value	3,258	1,939
Interest rate cap agreements
Derivative [Line Items]
Notional	10,690,797	9,463,935
Fair Value	104,625	76,269
Options for interest rate cap agreements
Derivative [Line Items]
Notional	10,690,797	9,463,935
Fair Value	(104,692)	(76,281)
Total return settlement
Derivative [Line Items]
Notional	658,471	658,471
Fair Value	$ (31,123)	$ (30,618)

Derivative Financial Instrume69

Derivative Financial Instruments - Additional Information (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated unrealized gains to be reclassified from AOCI to interest expense in next 12 months	$ 8,000,000
Warrant
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated fair value of warrant	$ 0	$ 0

Derivative Financial Instrume70

Derivative Financial Instruments - Offsetting of Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Offsetting of Financial Assets
Assets Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	$ 164,776	$ 123,895
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received, Total derivative assets	(21,369)	(22,100)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total derivatives subject to a master netting arrangement or similar arrangement	143,407	101,795
Total derivatives not subject to a master netting arrangement or similar arrangement	0	0
Assets Presented in the Condensed Consolidated Balance Sheet, Total derivative assets	164,776	123,895
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total derivative assets	143,407	101,795
Assets Presented in the Condensed Consolidated Balance Sheet, Total financial assets	164,776	123,895
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received, Total financial assets	(21,369)	(22,100)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total financial assets	143,407	101,795
Offsetting of Financial Liabilities
Liabilities Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	105,013	77,351
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Cash Collateral Pledged	(89,636)	(77,351)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Net Amount	15,377	0
Total derivatives not subject to a master netting arrangement or similar arrangement	31,123	30,618
Liabilities Presented in the Condensed Consolidated Balance Sheet, Total derivative liabilities	136,136	107,969
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total derivative liabilities	46,500	30,618
Liabilities Presented in the Condensed Consolidated Balance Sheet, Total financial liabilities	136,136	107,969
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Pledged, Total financial liabilities	(89,636)	(77,351)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total financial liabilities	46,500	30,618
Interest rate swaps | Santander and Affiliates
Offsetting of Financial Assets
Assets Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	8,194	5,372
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received, Total derivative assets	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total derivatives subject to a master netting arrangement or similar arrangement	8,194	5,372
Offsetting of Financial Liabilities
Liabilities Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	87	546
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Cash Collateral Pledged	(87)	(546)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Net Amount	0	0
Interest rate swaps | Third Party
Offsetting of Financial Assets
Assets Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	51,957	42,254
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received, Total derivative assets	(9,783)	(22,100)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total derivatives subject to a master netting arrangement or similar arrangement	42,174	20,154
Offsetting of Financial Liabilities
Liabilities Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	234	524
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Cash Collateral Pledged	(234)	(524)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Net Amount	0	0
Interest rate cap agreements | Santander and Affiliates
Offsetting of Financial Assets
Assets Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	7,812	7,593
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received, Total derivative assets	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total derivatives subject to a master netting arrangement or similar arrangement	7,812	7,593
Interest rate cap agreements | Third Party
Offsetting of Financial Assets
Assets Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	96,813	68,676
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received, Total derivative assets	(11,586)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total derivatives subject to a master netting arrangement or similar arrangement	85,227	68,676
Back to Back | Santander and Affiliates
Offsetting of Financial Liabilities
Liabilities Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	7,812	7,593
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Cash Collateral Pledged	(7,812)	(7,593)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Net Amount	0	0
Back to Back | Third Party
Offsetting of Financial Liabilities
Liabilities Presented in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement	96,880	68,688
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Cash Collateral Pledged	(81,503)	(68,688)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Total derivatives subject to a master netting arrangement or similar arrangement, Net Amount	15,377	0
Total return settlement
Offsetting of Financial Liabilities
Total derivatives not subject to a master netting arrangement or similar arrangement	$ 31,123	$ 30,618

Derivative Financial Instrume71

Derivative Financial Instruments - Gross Gains (Losses) Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest Expense | Not Designated As Hedges
Derivative Instruments Gain Loss [Line Items]
Recognized in Earnings	$ (1,204)	$ (5,499)
Operating Expense | Not Designated As Hedges
Derivative Instruments Gain Loss [Line Items]
Recognized in Earnings	(505)	(1,316)
Interest rate swaps | Designated as Cash Flow Hedges
Derivative Instruments Gain Loss [Line Items]
Recognized in Earnings	383	208
Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss)	7,332	(73,005)
Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Income to Interest Expense	$ 4,240	$ (12,082)

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	1 Months Ended
	May 31, 2013	Mar. 31, 2017	Dec. 31, 2016
Other Assets [Line Items]
Other assets		$ 861,871	$ 785,410
Upfront fee	$ 150,000
Finance and other interest income amortization period	10 years
Vehicles
Other Assets [Line Items]
Other assets		314,960	257,382
Manufacturer subvention payments receivable
Other Assets [Line Items]
Other assets		134,347	161,447
Upfront fee
Other Assets [Line Items]
Other assets		91,250	95,000
Derivative assets at fair value
Other Assets [Line Items]
Other assets		148,770	110,930
Derivative - third party collateral
Other Assets [Line Items]
Other assets		81,737	75,089
Prepaids
Other Assets [Line Items]
Other assets		46,613	46,177
Accounts receivable
Other Assets [Line Items]
Other assets		29,872	22,480
Other
Other Assets [Line Items]
Other assets		$ 14,322	$ 16,905

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income tax expense	$ 78,001	$ 120,643
Effective tax rate	35.20%	36.70%
Operating Loss Carryforwards [Line Items]
Related party taxes receivable	$ 467		$ 1,087
Tax Sharing Agreement
Operating Loss Carryforwards [Line Items]
Related party taxes receivable	$ 467		$ 1,087

Commitments and Contingencies -

Commitments and Contingencies - Liabilities for Commitments and Contingencies (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Legal and regulatory proceedings
Loss Contingencies [Line Items]
Contingencies	$ 43,170	$ 39,200
Revenue-sharing and gain-sharing payments | Chrysler
Loss Contingencies [Line Items]
Commitments	9,234	10,134
Servicer performance fee | Bank of America
Loss Contingencies [Line Items]
Commitments	10,814	9,797
Loss-sharing payments | CBP
Loss Contingencies [Line Items]
Commitments	$ 4,612	$ 4,563

Commitments and Contingencies75

Commitments and Contingencies - Chrysler Agreement (Details) - Chrysler - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Funding available for FCA retail financing	$ 4,500,000,000
Meeting specified escalating penetration rates, period	5 years
Minimum
Other Commitments [Line Items]
Funding available for dealer inventory financing	$ 5,000,000,000
Revenue-sharing and gain-sharing payments
Other Commitments [Line Items]
Amount accrued for the payments	$ 9,234,000	$ 10,134,000

Commitments and Contingencies76

Commitments and Contingencies - Agreement with Bank of America (Details) - Bank of America - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Commitment to sell loans		$ 300,000,000
Servicer performance payments due, period	6 years
Servicer performance fee
Other Commitments [Line Items]
Commitments	$ 10,814,000	$ 9,797,000

Commitments and Contingencies77

Commitments and Contingencies - Agreement with CBP (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Aug. 01, 2015	Jul. 31, 2015
CBP
Other Commitments [Line Items]
Loans servicing, loss-sharing payment ratio	0.50%
CBP | Chrysler
Other Commitments [Line Items]
Maximum purchase amount committed			$ 200,000	$ 600,000
Minimum purchase amount committed			$ 50,000	$ 250,000
CBP | Loss-sharing payments
Other Commitments [Line Items]
Commitments	$ 4,612,000	$ 4,563,000

Commitments and Contingencies78

Commitments and Contingencies - Legal and Regulatory Proceedings (Details) - USD ($) $ in Thousands	Mar. 29, 2017	Nov. 04, 2015	Feb. 25, 2015	Mar. 31, 2017	Dec. 31, 2016
Violation of Applicable State Consumer Protection Laws in Massachusetts
Loss Contingencies [Line Items]
Amount agreed to be paid	$ 5,800
Violation of Applicable State Consumer Protection Laws in Massachusetts | Independent Trust
Loss Contingencies [Line Items]
Amount agreed to be paid	16,300
Violation of Applicable State Consumer Protection Laws in Delaware
Loss Contingencies [Line Items]
Amount agreed to be paid	1,025
Violation of Applicable State Consumer Protection Laws in Delaware | Independent Trust
Loss Contingencies [Line Items]
Amount agreed to be paid	$ 2,875
Violation of SCRA
Loss Contingencies [Line Items]
SCRA compliance monitoring period			5 years
Aggregate Legal and Regulatory Liabilities
Loss Contingencies [Line Items]
Contingencies				$ 43,170	$ 39,200
Unfavorable Regulatory Action | Assurance of Discontinuance
Loss Contingencies [Line Items]
Civil fine, amount		$ 150
Civil Fine | Violation of SCRA
Loss Contingencies [Line Items]
Civil fine, amount			$ 55
Civil Fine to Affected Service Members | Violation of SCRA | Minimum
Loss Contingencies [Line Items]
Civil fine, amount			9,360
Lost Equity for Each Repossession by SCUSA | Violation of SCRA
Loss Contingencies [Line Items]
Civil fine, amount			10
SCUSA Sought to Collect Repossession-related Fees | Violation of SCRA
Loss Contingencies [Line Items]
Civil fine, amount			$ 5

Commitments and Contingencies79

Commitments and Contingencies - Other Commitments and Contingencies (Details) - USD ($)	Jun. 29, 2015	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Nov. 13, 2015	May 09, 2015	Mar. 31, 2015
Other Commitments [Line Items]
Purchase obligation		$ 11,281,000		$ 12,634,000
Purchase commitment, repurchase rate (up to)		9.99%
Retainer rate (up to) upon exercise of repurchase right		20.00%
Servicing fees adjustment		$ 0	$ 836,000
Repurchase requests outstanding		0
Commitment to sell charged off loan receivables in bankruptcy sale	$ 275,000,000				$ 350,000,000		$ 200,000,000
Sales subject to market price check (over)	$ 275,000,000
Remaining aggregate commitment to sell charged off loan receivables		152,054,000		166,167,000
Lease expense		2,739,000	$ 2,950,000
Modified Stock Option | Chairman and CEO
Other Commitments [Line Items]
Liability for payments and benefits due under Separation Agreement		115,139,000
SBNA
Other Commitments [Line Items]
Indemnification of leases						$ 48,226,000
Consumer Portfolio Segment | Unfunded Loan Commitment | Receivables From Dealers
Other Commitments [Line Items]
Financing receivable		3,656,000		2,529,000
Auto dealer revolving line of credit, committed amount		$ 3,656,000		$ 2,920,000

Commitments and Contingencies80

Commitments and Contingencies - Future Minimum Lease Commitments (Details) $ in Thousands	Mar. 31, 2017USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,017	$ 11,858
2,018	12,781
2,019	12,866
2,020	13,074
2,021	12,691
Thereafter	53,690
Total	$ 116,960

Related-Party Transactions - In

Related-Party Transactions - Interest Expense and Accrued Interest (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Santander
Related Party Transaction [Line Items]
Line of credit agreement, interest expense (Note 5)	$ 22,976	$ 20,273
Line of credit agreement, accrued interest (Note 5)	7,569		$ 6,297
SHUSA
Related Party Transaction [Line Items]
Line of credit agreement, interest expense (Note 5)	12,634	$ 2,864
Line of credit agreement, accrued interest (Note 5)	$ 5,095		$ 1,737

Related-Party Transactions - Cr

Related-Party Transactions - Credit Facilities (Details) - Santander - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Aug. 31, 2015	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Guarantee fee, basis spread (as a percent)	0.125%
Guarantee fee expense		$ 1,465	$ 1,578
Guarantee fee payable		$ 3,085		$ 1,620

Related-Party Transactions - De

Related-Party Transactions - Derivatives (Details) - Santander and Affiliates - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Outstanding notional amount	$ 5,936,700		$ 7,259,400
Collateral coverage on derivative liabilities	10,637		$ 15,092
Derivative instrument interest expenses	$ 29	$ 10,150

Related-Party Transactions - Or

Related-Party Transactions - Originations (Details) - SBNA - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Referral fee	$ 9,000
Referral fee, amortization period	10 years
Unamortized fee balance	$ 5,625		$ 5,850
Referral fee income	225	$ 225
Servicing fee income on receivables sold	1,393	1,549
Dealer Loan Portfolio
Related Party Transaction [Line Items]
Relationship management fee income		1,279
Due from related parties	320		552
Servicing fee expense	30
Servicing fees payable	13		21
Origination Fee Income
Related Party Transaction [Line Items]
Revenue from related parties	600
Renewal Fee Income
Related Party Transaction [Line Items]
Revenue from related parties	306
Loan Origination on Sales of Floorplan Inventory
Related Party Transaction [Line Items]
Due to related parties	2,698		$ 2,761
Serviced Auto Loan and Retail Installment
Related Party Transaction [Line Items]
Servicing fee income on receivables sold	925	$ 2,108
Fee for Payments Made at Retail Branch Locations
Related Party Transaction [Line Items]
Due to related parties	197
Expenses from transaction with related party	$ 40

Related-Party Transactions - 85

Related-Party Transactions - Information on Serviced Auto Loan and Retail Installment Contract Portfolio (Details) - Serviced Auto Loan and Retail Installment - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Total serviced portfolio	$ 495,885	$ 531,117
Cash collections due to owner	20,980	21,427
Servicing fees receivable	$ 1,060	$ 1,123

Related-Party Transactions - Fl

Related-Party Transactions - Flow Agreements (Details) - SBNA - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Jun. 30, 2014
Related Party Transaction [Line Items]
Servicing fee income on receivables sold	$ 1,393	$ 1,549
Credit loss indemnification of leases	7,513		$ 11,329	$ 48,226
Indemnification liability	$ 2,691		$ 2,691

Related-Party Transactions - 87

Related-Party Transactions - Information on Consumer Vehicle Lease Portfolio (Details) - SBNA - Consumer Vehicle Lease - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Total serviced portfolio	$ 926,377	$ 1,297,317
Cash collections due to owner	303	78
Servicing fees receivable	645	926
Revenue share reimbursement receivable	$ 813	$ 612

Related-Party Transactions - Se

Related-Party Transactions - Securitizations (Details) - Santander $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Related Party Transaction [Line Items]
Sale of loans securitized	$ 700,000
Loss from sale of securitized loans	2,700
Due to related parties	$ 37,467

Related-Party Transactions - Em

Related-Party Transactions - Employment Agreements (Details) - USD ($)	Apr. 17, 2017	Jul. 02, 2015	Mar. 31, 2017	Dec. 31, 2016	Aug. 31, 2016	Jul. 16, 2014
Shareholders Agreement | Affiliates | DDFS LLC
Related Party Transaction [Line Items]
Call transaction, average share price (usd per share)		$ 26.83			$ 26.17
Number of consecutive trading days		10 days
Call Transaction | Affiliates | DDFS LLC | LIBOR
Related Party Transaction [Line Items]
Call transaction, basis spread on variable rate			1.00%
Call Transaction | Affiliates | DDFS LLC | SHUSA
Related Party Transaction [Line Items]
Number of shares called by warrant (in shares)		34,598,506
Proceeds payable upon consummation of call transaction			$ 928,278,000
Amended and Restated Loan Agreement | Affiliates | DDFS LLC | SHUSA
Related Party Transaction [Line Items]
Committed amount						$ 300,000,000
Notes payable			$ 290,000,000	$ 290,000,000
Minimum pledged collateral to outstanding principal requirement (less than) (percentage)			1.5
Minimum pledged collateral to outstanding principal requirement default, repayment of outstanding principal (at least) (percentage)			200.00%
Amended and Restated Loan Agreement | Affiliates | DDFS LLC | SHUSA | Subsequent Event
Related Party Transaction [Line Items]
Notes payable	$ 290,000,000
Amended and Restated Loan Agreement | Affiliates | DDFS LLC | SHUSA | Base Rate | Subsequent Event
Related Party Transaction [Line Items]
Basis spread on variable rate (as a percent)	2.00%
Amended and Restated Loan Agreement | Affiliates | DDFS LLC | SHUSA | Federal Funds Rate | Subsequent Event
Related Party Transaction [Line Items]
Basis spread on variable rate (as a percent)	0.50%
Pledge Agreement | Affiliates | DDFS LLC | SHUSA
Related Party Transaction [Line Items]
Common stock pledged as collateral (in shares)			29,598,506
Chairman and CEO | Modified Stock Option
Related Party Transaction [Line Items]
Compensation liability			$ 115,139,000
Chairman and CEO | Separation Agreement
Related Party Transaction [Line Items]
Consulting agreement term, period			12 months

Related-Party Transactions - Ot

Related-Party Transactions - Other Related Party Transactions (Details)	3 Months Ended
	Mar. 31, 2017USD ($)ft²	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Related Party Transaction [Line Items]
Lease expense	$ 2,739,000	$ 2,950,000
Future minimum payment of lease	116,960,000
Restricted cash	2,946,736,000		$ 2,757,299,000
Cost method investment	$ 0
Chairman and CEO, President and CFO and Board Member
Related Party Transaction [Line Items]
Area of leased property (in square foot) | ft²	373,000
Lease expense	$ 1,275,000	1,266,000
Lease term	12 years
Future minimum payment of lease	$ 67,386,000
SBNA | Sublease of Corporate Office Space
Related Party Transaction [Line Items]
Area of property (in square foot) | ft²	13,000
Sublease revenue	$ 41,000	41,000
Subsidiaries | Banco Santander Puerto Rico | Demand Deposits
Related Party Transaction [Line Items]
Restricted cash	93,013,000		$ 98,836,000
Affiliates | SIS | Secured Debt | CCART 2013-A Trust
Related Party Transaction [Line Items]
Debt, principal				$ 2,000,000
Affiliates | Fees Paid for Co-Management of Certain Securitizations | SIS
Related Party Transaction [Line Items]
Expenses from transaction with related party	150,000	100,000
Produban Servicios Informaticos Generales S.L
Related Party Transaction [Line Items]
Expenses incurred	$ 21,000	$ 24,000

Computation of Basic and Dilu91

Computation of Basic and Diluted Earnings per Common Share - Additional Information (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Awards excluded from computation of earnings per share (in shares)	973,230	1,504,790

Computation of Basic and Dilu92

Computation of Basic and Diluted Earnings per Common Share - Summary of Computation of Basic and Diluted Earnings per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings per common share
Net income	$ 143,427	$ 208,299
Weighted average number of common shares outstanding before restricted participating shares	358,939,000	357,625,000
Weighted average number of participating restricted common shares outstanding	166,000	350,000
Weighted average number of common shares outstanding	359,105,050	357,974,890
Earnings per common share (in usd per share)	$ 0.40	$ 0.58
Earnings per common share - assuming dilution
Net income	$ 143,427	$ 208,299
Weighted average number of common shares outstanding	359,105,050	357,974,890
Effect of employee stock-based awards (in shares)	1,511,000	865,000
Weighted average number of common shares outstanding - assuming dilution	360,616,032	358,840,322
Earnings per common share - assuming dilution (in usd per share)	$ 0.40	$ 0.58

Fair Value of Financial Instr93

Fair Value of Financial Instruments - Summary of Fair Value Estimates, Methods and Assumptions (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Level 1
Assets:
Cash and cash equivalents	$ 420,826	$ 160,180
Finance receivables held for investment, net	0	0
Restricted cash	2,946,736	2,757,299
Total	3,367,562	2,917,479
Liabilities:
Notes payable — credit facilities	0	0
Notes payable — secured structured financings	0	0
Notes payable — related party	0	0
Total	0	0
Level 2
Assets:
Cash and cash equivalents	0	0
Finance receivables held for investment, net	0	0
Restricted cash	0	0
Total	0	0
Liabilities:
Notes payable — credit facilities	0	0
Notes payable — secured structured financings	14,927,192	13,530,045
Notes payable — related party	0	0
Total	14,927,192	13,530,045
Level 3
Assets:
Cash and cash equivalents	0	0
Finance receivables held for investment, net	24,585,906	24,630,599
Restricted cash	0	0
Total	24,585,906	24,630,599
Liabilities:
Notes payable — credit facilities	4,958,638	6,739,817
Notes payable — secured structured financings	8,887,587	8,182,646
Notes payable — related party	2,850,000	2,975,000
Total	16,696,225	17,897,463
Carrying Value
Assets:
Cash and cash equivalents	420,826	160,180
Finance receivables held for investment, net	23,413,973	23,456,506
Restricted cash	2,946,736	2,757,299
Total	26,781,535	26,373,985
Liabilities:
Notes payable — credit facilities	4,958,638	6,739,817
Notes payable — secured structured financings	23,666,666	21,608,889
Notes payable — related party	2,850,000	2,975,000
Total	31,475,304	31,323,706
Estimated Fair Value
Assets:
Cash and cash equivalents	420,826	160,180
Finance receivables held for investment, net	24,585,906	24,630,599
Restricted cash	2,946,736	2,757,299
Total	27,953,468	27,548,078
Liabilities:
Notes payable — credit facilities	4,958,638	6,739,817
Notes payable — secured structured financings	23,814,779	21,712,691
Notes payable — related party	2,850,000	2,975,000
Total	$ 31,623,417	$ 31,427,508

Fair Value of Financial Instr94

Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Retail installment contracts acquired individually	$ 30,652	$ 24,495
Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	96,813	68,676
Due from affiliates	7,812	7,593
Interest Rate Swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	1,422	783
Due from affiliates	1,864	1,292
Other liabilities	14	42
Due to affiliates	13	95
Interest Rate Swaps | Designated as Cash Flow Hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	50,535	41,471
Due from affiliates	6,330	4,080
Other liabilities	220	482
Due to affiliates	74	451
Trading Options for Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	96,880	68,688
Due to affiliates	7,812	7,593
Total Return Settlement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	31,123	30,618
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Retail installment contracts acquired individually	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	0	0
Due from affiliates	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest Rate Swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	0	0
Due from affiliates	0	0
Other liabilities	0	0
Due to affiliates	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest Rate Swaps | Designated as Cash Flow Hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	0	0
Due from affiliates	0	0
Other liabilities	0	0
Due to affiliates	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Trading Options for Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	0	0
Due to affiliates	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Total Return Settlement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Retail installment contracts acquired individually	0	0
Significant Other Observable Inputs (Level 2) | Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	96,813	68,676
Due from affiliates	7,812	7,593
Significant Other Observable Inputs (Level 2) | Interest Rate Swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	1,422	783
Due from affiliates	1,864	1,292
Other liabilities	14	42
Due to affiliates	13	95
Significant Other Observable Inputs (Level 2) | Interest Rate Swaps | Designated as Cash Flow Hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	50,535	41,471
Due from affiliates	6,330	4,080
Other liabilities	220	482
Due to affiliates	74	451
Significant Other Observable Inputs (Level 2) | Trading Options for Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	96,880	68,688
Due to affiliates	7,812	7,593
Significant Other Observable Inputs (Level 2) | Total Return Settlement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Retail installment contracts acquired individually	30,652	24,495
Significant Unobservable Inputs (Level 3) | Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	0	0
Due from affiliates	0	0
Significant Unobservable Inputs (Level 3) | Interest Rate Swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	0	0
Due from affiliates	0	0
Other liabilities	0	0
Due to affiliates	0	0
Significant Unobservable Inputs (Level 3) | Interest Rate Swaps | Designated as Cash Flow Hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	0	0
Due from affiliates	0	0
Other liabilities	0	0
Due to affiliates	0	0
Significant Unobservable Inputs (Level 3) | Trading Options for Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	0	0
Due to affiliates	0	0
Significant Unobservable Inputs (Level 3) | Total Return Settlement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	$ 31,123	$ 30,618

Fair Value of Financial Instr95

Fair Value of Financial Instruments - Change in Level 3 Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Derivative Financial Instruments, Liabilities | Total Return Settlement
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance — beginning of period	$ 31,123	$ 53,793	$ 30,618	$ 53,432
Losses recognized in earnings	505	1,316
Settlements	0	(955)
Balance — end of period	31,123	53,793
Retail Installment Contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance — beginning of period	30,652	4,139	$ 24,495	$ 6,770
Additions / issuances	13,331	0
Net collection activities	(10,113)	(3,924)
Transfers to held for sale	(12)	0
Gains recognized in earnings	2,951	1,293
Balance — end of period	$ 30,652	$ 4,139

Fair Value of Financial Instr96

Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Vehicles
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	$ 314,960	$ 257,382
Lower of cost or fair value expense	0	0
Vehicles | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0	0
Vehicles | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	314,960	257,382
Vehicles | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0	0
Personal Loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	979,103	1,077,600
Lower of cost or fair value expense	64,639	414,703
Personal Loans | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0	0
Personal Loans | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0	0
Personal Loans | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	979,103	1,077,600
Retail Installment Contracts Held-for-sale
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	876,916	1,045,815
Lower of cost or fair value expense	1,482	8,913
Retail Installment Contracts Held-for-sale | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0	0
Retail Installment Contracts Held-for-sale | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0	0
Retail Installment Contracts Held-for-sale | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	876,916	$ 1,045,815
Auto Loans Impaired Due to Bankruptcy
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	54,929
Lower of cost or fair value expense	23,600
Auto Loans Impaired Due to Bankruptcy | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0
Auto Loans Impaired Due to Bankruptcy | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	54,929
Auto Loans Impaired Due to Bankruptcy | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	$ 0

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2013	Dec. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued	359,489,493		359,002,145
Expiration period	10 years
Chairman and CEO | Separation Agreement
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Regulatory approval period	60 days
MEP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares stock awards available for grant					29,000,000
Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares stock awards available for grant	583,890
Common stock, shares issued				5,192,640
Stock vesting period	5 years
Employee benefits and share-based compensation	$ 178	$ 858
Omnibus Incentive Plan | RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award holding period	1 year
Omnibus Incentive Plan | RSUs | Vesting One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock vesting period	3 years
Omnibus Incentive Plan | RSUs | Vesting Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock vesting period	5 years
Omnibus Incentive Plan | RSUs | Certain Officers | Vesting One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock vesting period	3 years
Omnibus Incentive Plan | RSUs | Certain Officers | Vesting Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock vesting period	5 years

Employee Benefit Plans - Summar

Employee Benefit Plans - Summary of Stock Options and Related Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Shares
Options outstanding, Beginning balance (in shares)	4,295,830,000
Granted (in shares)	0
Exercised (in shares)	(263,703,000)
Expired (in shares)	(60,768,000)
Forfeited (in shares)	(443,617,000)
Options outstanding, Ending balance (in shares)	3,527,742,000	4,295,830,000
Options exercisable, Ending balance (in shares)	2,953,556,000
Weighted Average Exercise Price
Options outstanding, Beginning balance (in usd per share)	$ 12.70
Granted (in usd per share)	0
Exercised (in usd per share)	9.38
Expired (in usd per share)	9.63
Forfeited (in usd per share)	10.05
Options outstanding, Ending balance (in usd per share)	13.34	$ 12.70
Options exercisable, Weighted average exercise price, Ending balance (in usd per share)	$ 11.59
Weighted Average Remaining Contractual Term (Years)
Options outstanding, Weighted average remaining contractual term (Years)	5 years 6 months	5 years 7 months 6 days
Options exercisable, Weighted average remaining contractual term (Years)	5 years 1 month 6 days
Aggregate Intrinsic Value
Options outstanding, Aggregate intrinsic value	$ 0	$ 12,982
Exercised Aggregate intrinsic value	1,202
Options exercisable, Aggregate intrinsic value	$ 5,122

Shareholders' Equity - Treasury

Shareholders' Equity - Treasury Stock (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2013	Dec. 31, 2016
Equity [Abstract]
Number of shares withheld to cover income taxes related to vesting of RSUs	94,595		94,595
Treasury stock value	$ 1,600		$ 1,600
Number of shares repurchased prior to the IPO		3,154
Number of shares withheld for income tax	91,441

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	$ 5,238,619	$ 4,432,549
Ending balance	5,418,998	4,604,739
Unrealized Gains (Losses) on Cash Flow Hedges
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	28,259	2,125
Other comprehensive income (loss) before reclassifications	9,900	(45,762)
Amounts reclassified out of accumulated other comprehensive income (loss)	(2,655)	7,572
Ending balance	$ 35,504	$ (36,065)

Shareholders' Equity - Reclassi

Shareholders' Equity - Reclassification of Amounts Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Settlements of derivatives	$ 227,089	$ 184,735
Tax expense (benefit)	78,001	120,643
Net of tax	(143,427)	(208,299)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Cash Flow Hedges
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Settlements of derivatives	(4,240)	12,082
Tax expense (benefit)	1,585	(4,510)
Net of tax	$ (2,655)	$ 7,572

Investment Losses, Net - Schedu

Investment Losses, Net - Schedule of Investment Gains (Losses), Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Gain (loss) on sale of loans and leases	$ (10,882)	$ 1,608
Lower of cost or market adjustments	(66,121)	(64,213)
Other gains, losses and impairments, net	604	(6,451)
Loss on investments, net	$ (76,399)	$ (69,056)

Investment Losses, Net - Additi

Investment Losses, Net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Lower of cost or market adjustment, customer default activity	$ 116,641	$ 101,347
Lower of cost or market adjustment	$ 50,520	$ 37,134