Santander Consumer USA (SC) 10-Q 5 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 30, 2016
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, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		358,151,988

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents - $4,120 and zero held for affiliates, respectively	$ 42,047	$ 18,893
Finance receivables held for sale, net	2,324,190	2,868,603
Finance receivables held for investment, net	24,082,180	23,479,680
Restricted cash - $31,898 and $39,436 held for affiliates, respectively	2,636,216	2,236,329
Accrued interest receivable	369,656	405,464
Leased vehicles, net	7,298,521	6,516,030
Furniture and equipment, net of accumulated depreciation of $55,098 and $50,409, respectively	61,543	58,007
Federal, state and other income taxes receivable	260,687	267,686
Related party taxes receivable	85	0
Goodwill	74,056	74,056
Intangible assets, net of amortization of $30,053 and $28,422, respectively	33,915	53,316
Due from affiliates	65,062	42,665
Other assets	656,449	549,644
Total assets	37,904,607	36,570,373
Liabilities:
Notes payable — credit facilities	8,389,269	6,902,779
Notes payable — secured structured financings	20,340,959	20,872,900
Notes payable — related party	2,775,000	2,600,000
Accrued interest payable	25,632	22,544
Accounts payable and accrued expenses	374,843	413,269
Federal, state and other income taxes payable	3,088	2,449
Deferred tax liabilities, net	994,024	908,252
Related party taxes payable	0	342
Due to affiliates	177,061	145,013
Other liabilities	235,184	277,862
Total liabilities	$ 33,315,060	$ 32,145,410
Commitments and contingencies (Notes 5 and 10)
Equity:
Common stock, $0.01 par value - 1,100,000,000 shares authorized; 358,108,351 and 358,014,870 shares issued and 358,039,346 and 357,945,865 shares outstanding, respectively	$ 3,580	$ 3,579
Additional paid-in capital	1,567,936	1,565,856
Accumulated other comprehensive income (loss), net	(36,065)	2,125
Retained earnings	3,054,096	2,853,403
Total stockholders’ equity	4,589,547	4,424,963
Total liabilities and equity	$ 37,904,607	$ 36,570,373

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Cash and cash equivalents held for affiliates	$ 4,120	$ 0
Restricted cash held for affiliates	31,898	39,436
Accumulated depreciation	55,098	50,409
Accumulated amortization	$ 30,053	$ 28,422
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	358,108,351	358,014,870
Common stock, shares outstanding	358,039,346	357,945,865

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	[1]
Income Statement [Abstract]
Interest on finance receivables and loans	$ 1,341,763	$ 1,230,002
Leased vehicle income	329,792	231,616
Other finance and interest income	3,912	7,341
Total finance and other interest income	1,675,467	1,468,959
Interest expense — Including $31,686 and $44,016 to affiliates, respectively	184,735	148,856
Leased vehicle expense	218,779	171,734
Net finance and other interest income	1,271,953	1,148,369
Provision for credit losses	706,574	674,687
Net finance and other interest income after provision for credit losses	565,379	473,682
Profit sharing	11,394	13,516
Net finance and other interest income after provision for credit losses and profit sharing	553,985	460,166
Investment gains (losses), net	(73,151)	21,247
Servicing fee income — Including $4,936 and $5,024 from affiliates, respectively	44,494	24,803
Fees, commissions, and other — Including $225 and $5,849 from affiliates, respectively	101,335	101,133
Total other income	72,678	147,183
Compensation expense	119,842	100,540
Repossession expense	73,545	58,826
Other operating costs — Including $4,813 and $371 to affiliates, respectively	116,454	86,013
Total operating expenses	309,841	245,379
Income before income taxes	316,822	361,970
Income tax expense	116,129	115,688
Net income	200,693	246,282
Other comprehensive income (loss):
Change in unrealized gains (losses) on cash flow hedges, net of tax of $22,733 and $7,622, respectively	(38,190)	(12,843)
Comprehensive income	$ 162,503	$ 233,439
Net income per common share (basic) (in usd per share)	$ 0.56	$ 0.70
Net income per common share (diluted) (in usd per share)	$ 0.56	$ 0.69
Weighted average common shares (basic) (in shares)	357,974,890	349,421,960
Weighted average common shares (diluted) (in shares)	360,228,272	356,654,466
[1]	As Restated - Note 1

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	[1]
Income Statement [Abstract]
Interest expense to affiliates	$ 31,686	$ 44,016
Servicing fee income from affiliates	4,936	5,024
Fees, commissions and other from affiliates	225	5,849
Other operating costs to affiliates	4,813	371
Change in unrealized gains (losses) on cash flow hedges, tax	$ 22,733	$ 7,622
[1]	As Restated - Note 1

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, 2014	[1]		348,978,000
Beginning balance at Dec. 31, 2014	[1]	$ 3,593,672	$ 3,490	$ 1,560,519	$ 3,553	$ 2,026,110
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued in connection with employee incentive compensation plans (in shares)			980,000
Stock issued in connection with employee incentive compensation plans		11,650	$ 10	11,640
Stock-based compensation expense		4,075		4,075
Net income	[1]	246,282				246,282
Other comprehensive income (loss), net of taxes		(12,843)			(12,843)
Ending balance (in shares) at Mar. 31, 2015	[1]		349,958,000
Ending balance at Mar. 31, 2015	[1]	$ 3,842,836	$ 3,500	1,576,234	(9,290)	2,272,392
Beginning balance (in shares) at Dec. 31, 2015		357,945,865	357,946,000
Beginning balance at Dec. 31, 2015		$ 4,424,963	$ 3,579	1,565,856	2,125	2,853,403
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		200,693				200,693
Other comprehensive income (loss), net of taxes		$ (38,190)			(38,190)
Ending balance (in shares) at Mar. 31, 2016		358,039,346	358,039,000
Ending balance at Mar. 31, 2016		$ 4,589,547	$ 3,580	$ 1,567,936	$ (36,065)	$ 3,054,096
[1]	As Restated - Note 1

CONDENSED CONSOLIDATED STATEME7

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	[1]
Cash flows from operating activities:
Net income	$ 200,693	$ 246,282
Adjustments to reconcile net income to net cash provided by operating activities
Derivative mark to market	5,317	2,429
Provision for credit losses	706,574	674,687
Depreciation and amortization	265,077	196,191
Accretion of discount	(151,045)	(132,725)
Originations and purchases of receivables held for sale	(1,277,487)	(720,145)
Proceeds from sales of and collections on receivables held for sale	922,071	537,462
Change in revolving personal loans	(129,330)	0
Investment losses (gains), net	73,151	(21,247)
Stock-based compensation	1,768	4,075
Deferred tax expense (benefit)	107,540	(1,275)
Changes in assets and liabilities:
Accrued interest receivable	11,272	6,512
Accounts receivable	3,157	(3,726)
Federal income tax and other taxes	7,515	388,718
Other assets	(59,275)	7,063
Accrued interest payable	3,102	1,744
Other liabilities	(19,963)	62,587
Due to/from affiliates	(15,748)	(5,435)
Net cash provided by operating activities	654,389	1,243,197
Cash flows from investing activities:
Originations of and disbursements on finance receivables held for investment	(3,836,292)	(4,986,961)
Purchases of portfolios of finance receivables held for investment	(95,596)	0
Collections on finance receivables held for investment	2,598,238	2,537,187
Proceeds from sale of loans held for investment	823,877	407,470
Leased vehicles purchased	(1,622,199)	(1,135,171)
Manufacturer incentives received	329,616	219,419
Proceeds from sale of leased vehicles	295,118	586,664
Change in revolving personal loans	166,890	(4,237)
Purchases of furniture and equipment	(14,500)	(4,844)
Sales of furniture and equipment	1,010	188
Change in restricted cash	(404,457)	(766,447)
Other investing activities	(2,532)	(1,533)
Net cash used in investing activities	(1,760,827)	(3,148,265)
Cash flows from financing activities:
Proceeds from notes payable related to secured structured financings — net of debt issuance costs	2,634,405	3,056,950
Payments on notes payable related to secured structured financings	(3,171,686)	(2,780,640)
Proceeds from unsecured notes payable	2,818,900	1,690,000
Payments on unsecured notes payable	(2,643,900)	(1,005,000)
Proceeds from notes payable	6,353,143	6,195,553
Payments on notes payable	(4,862,083)	(5,259,330)
Proceeds from stock option exercises, gross	813	9,161
Repurchase of stock - employee tax withholding	0	(164)
Other financing activities	0	7,667
Net cash provided by financing activities	1,129,592	1,898,863
Net increase (decrease) in cash and cash equivalents	23,154	(6,205)
Cash — Beginning of period	18,893	33,157
Cash — End of period	$ 42,047	$ 26,952
[1]	As Restated - Note 1

Description of Business, Basis

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices	3 Months Ended
	Mar. 31, 2016
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 subsidiaries, a specialized consumer finance company focused on vehicle finance and third-party servicing. The Company’s primary business is the indirect origination 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, 2016 , the Company was owned approximately 58.9% by Santander Holdings USA, Inc. (SHUSA), a subsidiary of Banco Santander, S.A. (Santander), approximately 31.2% by public shareholders, approximately 9.8% 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. Pursuant to a Separation Agreement with Mr. Dundon, SHUSA was deemed to have delivered, as of July 3, 2015, an irrevocable notice to exercise the call option with respect to all the shares of Company common stock owned by DDFS LLC and consummate the transactions contemplated by the call option notice, subject to required bank regulatory approvals and any other approvals required by law being obtained (the "Call Transaction"). Pursuant to the Separation Agreement, because the Call Transaction was not consummated prior to October 15, 2015 (the “Call End Date”), DDFS LLC is free to transfer any or all of its shares of Company common stock, subject to the terms and conditions of the Amended and Restated Loan Agreement, dated as of July 16, 2014, between DDFS LLC and Santander (Note 11). Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of the Company and its subsidiaries, including certain Trusts, which are considered 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, 2016 and December 31, 2015 , and for the three months ended March 31, 2016 and 2015 , 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 generally accepted accounting principles for complete financial statements. In the opinion of management, these financial statements contain all adjustments, consisting of normal recurring adjustments, necessary to 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 Company’s Annual Report on Form 10-K for the year ended December 31, 2015 , filed on March 31, 2016. 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, 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. Corrections to Previously Reported Amounts The Company has made certain corrections to the March 31, 2015 condensed consolidated statements of income and comprehensive income, equity, and cash flows, and Note 4, Note 9, and Note 12 thereto. The Company determined that its historical methodology for estimating its credit loss allowance for individually acquired retail installment contracts was in error as it did not estimate impairment on troubled debt restructurings (TDRs) separately from a general credit loss allowance on loans not classified as TDRs, and incorrectly applied a loss emergence period to the entire portfolio rather than only to loans not classified as TDRs. The Company has corrected its allowance methodology accordingly, and has determined, based on this corrected methodology, that the Provision for credit losses reported on the condensed consolidated statement of income for the three months ended March 31, 2015 was previously understated by $68,706 . For the three months ended March 31, 2015 , income tax expense and net income were overstated by $25,738 and $42,968 , respectively. In addition, the Company has determined that it had incorrectly identified the population of loans that should be classified and disclosed as TDRs. The Company also has determined that subvention payments related to leased vehicles were incorrectly classified, within the income statement, as an addition to Leased vehicle income rather than a reduction of Leased vehicle expense. The subvention payments classification errors did not impact net income for any period. The impacts of the corrections of these errors on the unaudited quarterly financial information filed in our Quarterly Report on Form 10-Q for the three months ended March 31, 2015 have been provided in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 , and the corrected quarterly financial information is presented in this Form 10-Q. The following table summarizes the impacts of the corrections on our condensed consolidated statement of income for the three months ended March 31, 2015 : As Reported Corrections As Restated Leased vehicle income $ 332,946 $ (101,330 ) $ 231,616 Total finance and other interest income 1,570,289 (101,330 ) 1,468,959 Leased vehicle expense 273,064 (101,330 ) 171,734 Provision for credit losses 605,981 68,706 674,687 Net finance and other interest income after provision for credit losses 542,388 (68,706 ) 473,682 Net finance and other interest income after provision for credit losses and profit sharing 528,872 (68,706 ) 460,166 Income before income taxes 430,676 (68,706 ) 361,970 Income tax expense 141,426 (25,738 ) 115,688 Net income $ 289,250 $ (42,968 ) $ 246,282 Net income $ 289,250 $ (42,968 ) $ 246,282 Comprehensive income $ 276,407 $ (42,968 ) $ 233,439 Net income per common share (basic) $ 0.83 $ (0.13 ) $ 0.70 Net income per common share (diluted) $ 0.81 $ (0.12 ) $ 0.69 The following table summarizes the impacts of the corrections on our condensed consolidated statement of equity for the three months ended March 31, 2015 : Retained Earnings Total Stockholders’ Equity As Reported Corrections As Restated As Reported Corrections As Restated Balance — January 1, 2015 $ 1,990,787 $ 35,323 $ 2,026,110 $ 3,558,349 $ 35,323 $ 3,593,672 Net income 289,250 (42,968 ) 246,282 289,250 (42,968 ) 246,282 Balance — March 31, 2015 $ 2,280,037 $ (7,645 ) $ 2,272,392 $ 3,850,481 $ (7,645 ) $ 3,842,836 The following table summarizes the impacts of the corrections on our condensed consolidated statement of cash flows for the three months ended March 31, 2015 : As Reported Corrections As Restated Cash flows from operating activities: Net income $ 289,250 $ (42,968 ) $ 246,282 Adjustments to reconcile net income to net cash provided by operating activities: Provision for credit losses 605,981 68,706 674,687 Depreciation and amortization 297,521 (101,330 ) 196,191 Accretion of discount (234,055 ) 101,330 (132,725 ) Deferred tax expense 24,463 (25,738 ) (1,275 ) The impact of the corrections on the Company's disclosures of the activity in the credit loss allowance for individually acquired loans for the three months ended March 31, 2015 was as follows: Retail Installment Contracts Acquired Individually As Reported Corrections As Restated Balance — beginning of period $ 2,726,338 $ (56,508 ) $ 2,669,830 Provision for credit losses 507,148 68,706 575,854 Balance — end of period $ 2,822,712 $ 12,198 $ 2,834,910 The impact of the corrections on the Company's disclosures of the average recorded investment and income recognized on retail installment contract TDRs for the three months ended March 31, 2015 was as follows: Three Months Ended March 31, 2015 Retail Installment Contracts As Reported Corrections As Restated Average outstanding recorded investment in TDRs $ 3,573,868 $ 709,318 $ 4,283,186 Interest income recognized 196,976 (15,566 ) 181,410 The impact of the corrections on the Company's disclosures of the financial effects of retail installment contract TDRs that occurred for the three months ended March 31, 2015 was as follows: Retail Installment Contracts As Reported Corrections As Restated Outstanding recorded investment before TDR $ 875,809 $ (27,442 ) $ 848,367 Outstanding recorded investment after TDR $ 874,371 $ (17,126 ) $ 857,245 Number of contracts (not in thousands) 52,319 (3,427 ) 48,892 The impact of the corrections on the Company's disclosures of retail installment contracts modified as TDRs that subsequently defaulted for the three months ended March 31, 2015 was as follows: Retail Installment Contracts As Reported Corrections As Restated Recorded investment in TDRs that subsequently defaulted $ 158,518 $ 26,674 $ 185,192 Number of contracts (not in thousands) 11,654 (913 ) 10,741 The impact of the corrections on the Company's disclosures of the income tax expense and effective tax rate for the three months ended March 31, 2015 was as follows: As Reported Corrections As Restated Income tax expense $ 141,426 $ (25,738 ) $ 115,688 Income before income taxes 430,676 (68,706 ) 361,970 Effective tax rate 32.8 % (0.8 )% 32.0 % The impact of the corrections on the Company's disclosures of earnings per share for the three months ended March 31, 2015 was as follows: As Reported Corrections As Restated Earnings per common share Net income attributable to SC shareholders $ 289,250 $ (42,968 ) $ 246,282 Earnings per common share $ 0.83 $ (0.13 ) $ 0.70 Earnings per common share - assuming dilution Net income attributable to SC shareholders $ 289,250 $ (42,968 ) $ 246,282 Earnings per common share - assuming dilution $ 0.81 $ (0.12 ) $ 0.69 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 In June 2014, the FASB issued ASU 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could be Achieved after the Requisite Service Period. This standard affects entities that issue share-based payments when the terms of an award stipulate that a performance target could be achieved after an employee completes the requisite service period. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. In January 2015, the FASB issued ASU 2015-01, Income Statement - Extraordinary and Unusual Items. This standard simplifies income statement classification by removing the concept of extraordinary items from U.S. GAAP, and as a result, items that are both unusual and infrequent no longer will be separately reported net of tax after continuing operations. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. In February 2015, the FASB issued ASU 2015-02, Consolidation: Amendments to the Consolidation Analysis. This ASU changes the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. In April 2015, the FASB issued ASU 2015-05, Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. This ASU clarifies when fees paid in a cloud computing arrangement pertain to the acquisition of a software license, services, or both. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. Recent Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which provides guidance on a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. The effective date for this ASU, which was deferred by ASU 2015-14 issued in August 2015, is for fiscal years 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 also 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). 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. Early adoption of the guidance is not permitted. The Company is currently evaluating the impact of adopting ASU 2014-09 and the related updates to it on its financial position, results of operations and disclosures. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities , which provides guidance for the recognition, measurement, presentation, and disclosure of financial assets and liabilities. The guidance will be effective for the fiscal year beginning after December 15, 2017, including interim periods within that year. The Company is in the process of evaluating the impacts of the adoption of this ASU. 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 is in the process of evaluating the impacts of the adoption of this ASU. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, which is intended to simplify several aspects of the accounting for share-based payment award transactions. The guidance will be effective for the fiscal year beginning after December 15, 2016, including interim periods within that year. 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, 2016
Receivables [Abstract]
Finance Receivables	Finance Receivables Finance receivables held for investment, net is comprised of the following at March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Retail installment contracts acquired individually $ 23,753,177 $ 23,111,146 Purchased receivables 215,344 244,362 Receivables from dealers 74,612 76,025 Personal loans 1,337 941 Capital lease receivables (Note 3) 37,710 47,206 $ 24,082,180 $ 23,479,680 The Company's held for investment portfolio of retail installment contracts acquired individually, receivables from dealers, and personal loans was comprised of the following at March 31, 2016 and December 31, 2015 : March 31, 2016 Retail Installment Contracts Receivables from Personal Loans Unpaid principal balance $ 27,588,943 $ 76,015 $ 1,337 Credit loss allowance (Note 4) (3,423,258 ) (1,403 ) — Discount (455,471 ) — — Capitalized origination costs and fees 42,963 — — Net carrying balance $ 23,753,177 $ 74,612 $ 1,337 December 31, 2015 Retail Installment Contracts Receivables from Personal Loans Unpaid principal balance $ 26,863,946 $ 76,941 $ 941 Credit loss allowance (Note 4) (3,296,023 ) (916 ) — Discount (502,342 ) — — Capitalized origination costs and fees 45,565 — — Net carrying balance $ 23,111,146 $ 76,025 $ 941 Purchased receivables portfolios, which were acquired with deteriorated credit quality, were comprised of the following at March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Unpaid principal balance $ 314,847 $ 359,822 Outstanding recorded investment $ 388,269 $ 419,183 Less: Impairment (172,925 ) (174,821 ) Outstanding recorded investment, net of impairment $ 215,344 $ 244,362 As of September 30, 2015, the Company determined that it no longer had the intent to hold its personal loans for investment and that classification of all of its personal loans as held for sale was appropriate as of that date. In connection with the reclassification to held for sale, the Company transferred the personal loan portfolio at the lower of cost or market, with the lower of cost or market adjustment being charged off against the credit loss allowance. Loan originations and purchases under the Company’s personal lending platform subsequent to September 30, 2015, also are classified as held for sale. Following the reclassification of personal loans to held for sale, further adjustments to the recorded investment in personal loans held for sale, whether due to customer default or changes in market value, are recorded in investment gains (losses), net, in the condensed consolidated statements of income and comprehensive income (Note 16). On February 1, 2016, the Company sold personal loans with an unpaid principal balance of $869,349 to a third party for an immaterial gain to unpaid principal balance. 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 $1,337 and $941 at March 31, 2016 and December 31, 2015 , respectively. The carrying value of the Company's finance receivables held for sale was comprised of the following at March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Retail installment contracts acquired individually $ 1,345,371 $ 905,710 Personal loans 978,819 1,962,893 $ 2,324,190 $ 2,868,603 Sales of retail installment contracts to third parties and proceeds from sales of charged-off assets for the three months ended March 31, 2016 and 2015 were as follows: For the Three Months Ended 2016 2015 Sales of retail installment contracts to third parties $ 859,955 $ 919,078 Proceeds from sales of charged-off assets $ 6,230 $ 38,376 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, 2016 and December 31, 2015 were as follows: March 31, December 31, 2015 Serviced balance of retail installment contracts and leases sold to third parties $ 11,617,032 $ 12,155,844 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 facilities or securitization bonds (Note 5). Most of the creditors on the Company’s retail installment contracts are retail consumers; however, $1,165,062 and $1,087,024 of the unpaid principal balance represented fleet contracts with commercial borrowers as of March 31, 2016 and December 31, 2015 , respectively. Borrowers on the Company’s retail installment contracts held for investment are located in Texas ( 17% ), Florida ( 13% ), California ( 10% ), Georgia ( 5% ) and other states each individually representing less than 5% of the Company’s total. 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, 2016 and December 31, 2015 , 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 $158 and $156 at March 31, 2016, and December 31, 2015, respectively. The remaining receivables from dealers held for investment are all Chrysler Agreement-related. Borrowers on these dealer receivables are located in Virginia ( 38% ), California ( 23% ), New York ( 20% ), Missouri ( 9% ), Mississippi ( 7% ), and other states each individually representing less than 5% of the Company’s total. Changes in accretable yield on the Company’s purchased receivables portfolios for the periods indicated were as follows: For the Three Months Ended March 31, 2016 March 31, 2015 Balance — beginning of period $ 193,564 $ 264,416 Accretion of accretable yield (21,329 ) (26,905 ) Reclassifications from (to) nonaccretable difference (24,258 ) 6,144 Balance — end of period $ 147,977 $ 243,655 During the three months ended March 31, 2016 and 2015 , 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.

Leases

Leases	3 Months Ended
	Mar. 31, 2016
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, 2016 and December 31, 2015 : March 31, December 31, Leased vehicles $ 10,004,043 $ 8,862,214 Less: accumulated depreciation (1,736,884 ) (1,517,198 ) Depreciated net capitalized cost 8,267,159 7,345,016 Manufacturer subvention payments, net of accretion (a) (987,901 ) (845,142 ) Origination fees and other costs 19,263 16,156 Net book value $ 7,298,521 $ 6,516,030 (a) The Company recognized accretion of lease subvention payments, as a reduction to depreciation expense, of $151,871 and $101,330 for the three months ended March 31, 2016 and 2015 , respectively. During the three months ended March 31, 2016 and 2015 , the Company executed bulk sales of Chrysler Capital leases with an aggregate depreciated net capitalized cost of zero and $561,334 , respectively, and a net book value of zero and $488,919 , to a third party, respectively. The bulk sale agreement included certain provisions whereby the Company agreed to share in residual losses for lease terminations with losses over a specific percentage threshold (Note 10). The Company retained servicing on the sold leases. Due to the accelerated depreciation permitted for tax purposes, the sale generated large taxable gains that the Company deferred through a qualified like-kind exchange program. An immaterial amount of taxable gain that did not qualify for deferral was recognized upon expiration of the reinvestment period. The following summarizes the future minimum rental payments due to the Company as lessor under operating leases as of March 31, 2016 : Remainder of 2016 $ 977,209 2017 963,272 2018 421,093 2019 24,165 2020 50 Thereafter — Total $ 2,385,789 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, 2016 and December 31, 2015 : March 31, December 31, Gross investment in capital leases $ 70,781 $ 91,393 Origination fees and other 168 155 Less unearned income (17,379 ) (24,464 ) Net investment in capital leases before allowance 53,570 67,084 Less: allowance for lease losses (15,860 ) (19,878 ) Net investment in capital leases $ 37,710 $ 47,206 The following summarizes the future minimum lease payments due to the Company as lessor under capital leases as of March 31, 2016 : Remainder of 2016 $ 17,065 2017 22,721 2018 21,587 2019 8,279 2020 1,037 Thereafter 92 Total $ 70,781

Credit Loss Allowance and Credi

Credit Loss Allowance and Credit Quality	3 Months Ended
	Mar. 31, 2016
Loans and Leases Receivable, Allowance [Abstract]
Credit Loss Allowance and Credit Quality	Credit Loss Allowance and Credit Quality Credit Loss Allowance The Company estimates 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. Loans classified as TDRs are assessed for impairment based on the present value of expected future cash flows discounted at the original effective interest rate. 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, 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 loans for the three months ended March 31, 2016 and 2015 was as follows: Three Months Ended March 31, 2016 Three Months Ended March 31, 2015 Retail Installment Receivables Retail Installment Receivables Personal Loans (As Restated - Note 1) Balance — beginning of period $ 3,296,023 $ 916 $ 2,669,830 $ 674 $ 348,660 Provision for credit losses 709,530 487 575,854 456 97,703 Charge-offs (1,192,610 ) — (926,993 ) — (99,690 ) Recoveries 610,315 — 543,336 — 6,205 Transfers to held-for-sale — — (27,117 ) — — Balance — end of period $ 3,423,258 $ 1,403 $ 2,834,910 $ 1,130 $ 352,878 The impairment activity related to purchased receivables portfolios for the three months ended March 31, 2016 and 2015 was as follows: Three Months Ended 2016 2015 Balance — beginning of period $ 174,821 $ 188,639 Incremental provisions for purchased receivables portfolios 1,319 300 Incremental reversal of provisions for purchased receivables portfolios (3,215 ) (5,402 ) Balance — end of period $ 172,925 $ 183,537 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, 2016 and 2015 was as follows: Three Months Ended 2016 2015 Balance — beginning of period $ 19,878 $ 9,589 Provision for lease losses (1,547 ) 5,776 Charge-offs (12,359 ) (1,997 ) Recoveries 9,888 1,814 Balance — end of period $ 15,860 $ 15,182 Delinquencies Retail installment contracts are classified as non-performing when they are greater than 60 days past due as to contractual principal or interest payments. 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. A summary of delinquencies as of March 31, 2016 and December 31, 2015 is as follows: March 31, 2016 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 31-60 days past due $ 1,900,922 $ 20,131 $ 1,921,053 Delinquent principal over 60 days 852,863 11,570 864,433 Total delinquent principal $ 2,753,785 $ 31,701 $ 2,785,486 December 31, 2015 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 31-60 days past due $ 2,454,986 $ 30,442 $ 2,485,428 Delinquent principal over 60 days 1,191,567 17,297 1,208,864 Total delinquent principal $ 3,646,553 $ 47,739 $ 3,694,292 The balances in the above tables reflect total unpaid principal balance rather than net investment before allowance; the difference is considered insignificant. As of March 31, 2016 and December 31, 2015 , there were no receivables from dealers that were 31 days or more delinquent. FICO ® Distribution — A summary of the credit risk profile of the Company’s retail installment contract held for investment by FICO ® distribution, determined at origination, as of March 31, 2016 and December 31, 2015 was as follows: FICO ® Band March 31, 2016 December 31, 2015 Commercial (a) 4.2% 4.0% No-FICOs 12.6% 12.2% <540 23.2% 23.4% 540-599 31.0% 30.9% 600-639 17.1% 17.3% >640 11.9% 12.2% (a) No FICO score is obtained on loans to commercial borrowers Commercial Lending Credit Quality Indicators — The credit quality of receivables from dealers, which are considered commercial loans, is summarized according to standard regulatory classifications as follows: Pass — Asset is well-protected by the current net worth and paying capacity of the obligor or guarantors, if any, or by the fair value less costs to acquire and sell any underlying collateral in a timely manner. Special Mention — Asset has potential weaknesses that deserve management’s close attention, which, if left uncorrected, may result in deterioration of the repayment prospects for an asset at some future date. Special Mention assets are not adversely classified. Substandard — Asset is inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged, if any. A well-defined weakness or weaknesses exist that jeopardize the liquidation of the debt. The loans are characterized by the distinct possibility that the Company will sustain some loss if deficiencies are not corrected. Doubtful — Exhibits the inherent weaknesses of a substandard credit. Additional characteristics exist that make collection or liquidation in full highly questionable and improbable, on the basis of currently known facts, conditions and values. Possibility of loss is extremely high, but because of certain important and reasonable specific pending factors which may work to the advantage and strengthening of the credit, an estimated loss cannot yet be determined. Loss — Credit is considered uncollectible and of such little value that it does not warrant consideration as an active asset. There may be some recovery or salvage value, but there is doubt as to whether, how much or when the recovery would occur. As discussed in Note 2, the Company has $1,165,062 of fleet retail installment contracts with commercial borrowers. The Company's risk department performs a commercial analysis and classifies certain loans over an internal threshold based on the classifications above. As of March 31, 2016 , $6,409 of fleet loans were classified as Special Mention; the remaining fleet portfolio borrowers with balances over the classification threshold all were classified as Pass. Commercial loan credit quality indicators for receivables from dealers held for investment as of March 31, 2016 and December 31, 2015 were as follows: March 31, December 31, Pass $ 67,644 $ 68,873 Special Mention 2,406 8,068 Substandard 5,965 — Doubtful — — Loss — — Unpaid principal balance $ 76,015 $ 76,941 Troubled Debt Restructurings In certain circumstances, the Company modifies the terms of its finance receivables to troubled borrowers. Modifications may include a reduction in interest rate, an extension of the maturity date, rescheduling of future cash flows, or a combination thereof. 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. As of March 31, 2016 and December 31, 2015 , 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 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. The table below presents the Company’s TDRs as of March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Retail Installment Contracts Outstanding recorded investment $ 4,803,486 $ 4,667,380 Impairment (1,374,510 ) (1,356,092 ) Outstanding recorded investment, net of impairment $ 3,428,976 $ 3,311,288 A summary of the Company’s delinquent TDRs at March 31, 2016 and December 31, 2015 , is as follows: March 31, December 31, 2015 Retail Installment Contracts Principal, 31-60 days past due $ 793,139 $ 942,021 Delinquent principal over 60 days 367,413 510,015 Total delinquent TDR principal $ 1,160,552 $ 1,452,036 A loan that has been classified as a TDR remains so until the loan is liquidated through payoff or charge-off. Consistent with the Company’s other retail installment contracts, TDRs are placed on nonaccrual status when the account becomes past due more than 60 days , and returns to accrual status when the account is 60 days or less past due. Average recorded investment and income recognized on TDR loans are as follows: Three Months Ended March 31, 2016 March 31, 2015 Retail Installment Contracts Retail Installment Contracts Personal Loans (As Restated - Note 1) Average outstanding recorded investment in TDRs $ 4,735,433 $ 4,283,186 $ 10,387 Interest income recognized $ 174,191 $ 181,410 $ 589 The following table summarizes the financial effects of TDRs that occurred during the three months ended March 31, 2016 and 2015 : Three Months Ended March 31, 2016 March 31, 2015 Retail Installment Contracts Retail Installment Contracts Personal Loans (As Restated - Note 1) Outstanding recorded investment before TDR $ 703,948 $ 848,367 $ 5,394 Outstanding recorded investment after TDR $ 711,225 $ 857,245 $ 5,356 Number of contracts (not in thousands) 39,380 48,892 4,468 A TDR is considered to have subsequently defaulted upon charge off, which for retail installment contracts is at the earlier of the date of repossession or the month in which the loan becomes 120 days past due and for revolving personal loans is generally the month in which the receivable becomes 180 days past due. Loan restructurings accounted for as TDRs within the previous twelve months that subsequently defaulted during the three months ended March 31, 2016 and 2015 are summarized in the following table: Three Months Ended March 31, 2016 March 31, 2015 Retail Installment Contracts Retail Installment Contracts Personal Loans (As Restated - Note 1) Recorded investment in TDRs that subsequently defaulted $ 204,040 $ 185,192 $ 1,411 Number of contracts (not in thousands) 11,402 10,741 1,411

Debt

Debt	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Debt	Debt Revolving Credit Facilities The following table presents information regarding credit facilities as of March 31, 2016 and December 31, 2015 : March 31, 2016 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Warehouse line June 2016 $ 328,484 $ 500,000 1.53% $ 470,935 $ — Warehouse line (a) Various (a) 898,785 1,250,000 1.65% 1,268,593 33,876 Warehouse line (b) July 2017 1,136,620 1,260,000 1.26% 1,327,405 39,890 Warehouse line (c) July 2017 2,151,543 2,940,000 1.37% 3,301,792 59,169 Warehouse line December 2017 1,342,277 1,800,000 1.59% 1,903,553 45,797 Repurchase facility (d) December 2016 1,147,361 1,147,361 2.51% — 44,767 Warehouse line March 2018 886,199 1,000,000 1.26% 1,287,618 28,733 Warehouse line (e) November 2016 175,000 175,000 1.99% — — Warehouse line (e) November 2016 250,000 250,000 1.99% — 2,502 Warehouse line January 2018 73,000 400,000 3.13% 102,309 — Total facilities with third parties 8,389,269 10,722,361 9,662,205 254,734 Lines of credit with Santander and related subsidiaries (f): Line of credit December 2016 500,000 500,000 2.74% — — Line of credit December 2018 — 500,000 3.49% — — Line of credit December 2016 1,000,000 1,000,000 2.70% — — Line of credit December 2018 975,000 1,000,000 2.94% — — Line of credit March 2017 300,000 300,000 1.99% — — Line of credit March 2019 — 1,500,000 4.44% — — Total facilities with Santander and related subsidiaries 2,775,000 4,800,000 — — Total revolving credit facilities $ 11,164,269 $ 15,522,361 $ 9,662,205 $ 254,734 (a) Half of the outstanding balance on this facility matures in March 2017 and half matures in March 2018. (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) The repurchase facility is collateralized by securitization notes payable retained by the Company. This facility has rolling maturities of up to 180 days. On April 14, 2016, the Company entered into a second repurchase facility, advancing $237,000 . (e) These lines are collateralized by residuals retained by the Company. (f) These lines generally are also collateralized by securitization notes payable and residuals retained by the Company. As of March 31, 2016 and December 31, 2015 , $1,591,882 and $1,420,584 , respectively, of the aggregate outstanding balances on these facilities were unsecured. December 31, 2015 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Warehouse line June 2016 $ 378,301 $ 500,000 1.48% $ 535,737 $ — Warehouse line Various 808,135 1,250,000 1.29% 1,137,257 24,942 Warehouse line July 2017 682,720 1,260,000 1.35% 809,185 20,852 Warehouse line July 2017 2,247,443 2,940,000 1.41% 3,412,321 48,589 Warehouse line December 2017 944,877 2,000,000 1.56% 1,345,051 32,038 Repurchase facility December 2016 850,904 850,904 2.07% — 34,166 Warehouse line September 2017 565,399 1,000,000 1.20% 824,327 15,759 Warehouse line November 2016 175,000 175,000 1.90% — — Warehouse line November 2016 250,000 250,000 1.90% — 2,501 Total facilities with third parties 6,902,779 10,225,904 8,063,878 178,847 Lines of credit with Santander and related subsidiaries: Line of credit December 2016 500,000 500,000 2.65% — — Line of credit December 2018 — 500,000 3.48% — — Line of credit December 2016 1,000,000 1,750,000 2.61% — — Line of credit December 2018 800,000 1,750,000 2.84% — — Line of credit March 2017 300,000 300,000 1.88% — — Total facilities with Santander and related subsidiaries 2,600,000 4,800,000 — — Total revolving credit facilities $ 9,502,779 $ 15,025,904 $ 8,063,878 $ 178,847 Facilities with Third Parties The warehouse lines and repurchase facility 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 its New York branch, Santander provides the Company with $3,000,000 of long-term committed revolving credit facilities. Through SHUSA, Santander provides the Company with an additional $300,000 of committed revolving credit, collateralized by residuals retained on the Company's own securitizations, and $1,500,000 of committed revolving credit that can be drawn on an unsecured basis. 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, 2016 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. Secured Structured Financings The following table presents information regarding secured structured financings as of March 31, 2016 and December 31, 2015 : March 31, 2016 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 364,210 2,525,540 0.92%-1.23% 500,444 85,090 2013 Securitizations January 2019 - January 2021 1,718,547 6,689,700 0.89%-1.59% 2,251,347 269,731 2014 Securitizations February 2020 - January 2021 2,569,061 6,391,020 1.16%-1.72% 3,435,615 320,444 2015 Securitizations September 2019 - January 2023 6,340,242 9,317,032 1.33%-2.29% 8,223,569 613,124 2016 Securitizations April 2022 - May 2023 1,558,668 1,639,790 1.94%-2.44% 2,041,205 107,886 Securitizations (a) 12,550,728 26,563,082 16,452,180 1,396,275 2010 Private issuances (b) June 2011 162,149 516,000 1.29% 260,960 7,794 2011 Private issuances December 2018 552,070 1,700,000 1.46% 987,640 51,728 2013 Private issuances September 2018-September 2020 2,919,009 2,693,754 1.13%-1.38% 4,597,426 171,712 2014 Private issuances March 2018 - December 2021 1,282,460 3,271,175 1.05%-1.40% 1,871,997 114,993 2015 Private issuances December 2016 - July 2019 2,392,487 2,855,062 0.88%-2.81% 2,660,644 141,190 2016 Private issuances May 2020 482,056 500,000 1.55% 650,578 11,419 Privately issued amortizing notes 7,790,231 11,535,991 11,029,245 498,836 Total secured structured financings $ 20,340,959 $ 38,099,073 $ 27,481,425 $ 1,895,111 (a) Securitizations executed under Rule 144A of the Securities Act are included within this balance. (b) This securitization was most recently amended in May 2015 to extend the maturity date to May 2016. December 31, 2015 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 $ 433,771 $ 2,525,540 0.92%-1.23% $ 580,581 $ 84,231 2013 Securitizations January 2019 - January 2021 2,000,915 6,689,700 0.89%-1.59% 2,577,552 267,623 2014 Securitizations February 2020 - January 2021 2,956,273 6,391,020 1.16%-1.72% 3,894,365 313,356 2015 Securitizations September 2019 - January 2023 7,269,037 9,317,032 1.33%-2.29% 9,203,569 577,647 Securitizations 12,659,996 24,923,292 16,256,067 1,242,857 2010 Private issuances June 2011 108,201 516,000 1.29% 240,026 6,855 2011 Private issuances December 2018 708,884 1,700,000 1.46% 1,142,853 50,432 2013 Private issuances September 2018-September 2020 2,836,420 2,693,754 1.13%-1.38% 4,311,481 143,450 2014 Private issuances March 2018 - December 2021 1,541,970 3,271,175 1.05%-1.40% 2,192,495 95,325 2015 Private issuances November 2016 - May 2020 3,017,429 3,548,242 0.88%-2.81% 3,608,497 161,778 Privately issued amortizing notes 8,212,904 11,729,171 11,495,352 457,840 Total secured structured financings $ 20,872,900 $ 36,652,463 $ 27,751,419 $ 1,700,697 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, 2016 and December 31, 2015 , the Company had private issuances of notes backed by vehicle leases totaling $3,904,803 and $3,228,240 , 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. 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, 2016 and 2015 was $94,376 and $60,852 , respectively.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2016
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. These transactions are structured without recourse. The Trusts are considered VIEs under U.S. GAAP and, when the Company holds the residual interest, are consolidated because the Company has: (a) power over the significant activities of each entity as servicer of its financial assets and (b) through the residual interest and in some cases debt securities held by the Company, an obligation to absorb losses or the right to receive benefits from each VIE that are potentially significant to the VIE. When the Company does not retain any debt or equity interests in its securitizations or subsequently sells such interests, it records these transactions as sales of the associated retail installment contracts. Revolving credit facilities generally also utilize Trusts that are considered VIEs. The collateral, borrowings under credit facilities and securitization notes payable of the Company's consolidated VIEs remain on the condensed consolidated balance sheets. The Company recognizes finance charges, fee income, and provision for credit losses on the retail installment contracts, and leased vehicles and interest expense on the debt. All of the Trusts are separate legal entities and the collateral and other assets held by these subsidiaries are legally owned by them and are not available to other creditors. The Company also uses a titling trust to originate and hold its leased vehicles and the associated leases, in order to facilitate the pledging of leases to financing facilities or the sale of leases to other parties without incurring the costs and administrative burden of retitling the leased vehicles. This titling trust is considered a VIE. On-balance sheet variable interest entities The following table summarizes the assets and liabilities related to VIEs included in the Company’s condensed consolidated financial statements: March 31, December 31, Restricted cash $ 1,982,611 $ 1,842,877 Finance receivables held for sale 1,271,856 1,539,686 Finance receivables held for investment, net 22,897,337 22,891,064 Leased vehicles, net 7,298,521 6,516,030 Various other assets 581,758 620,482 Notes payable 30,500,847 30,611,019 Various other liabilities 7,654 5,379 Certain amounts shown above are greater than the amounts shown in the corresponding line items in the accompanying condensed consolidated balance sheets due to intercompany eliminations between the VIEs and other entities consolidated by the Company. For example, for most of its securitizations, the Company retains one or more of the lowest tranches of bonds. Rather than showing investment in bonds as an asset and the associated debt as a liability, these amounts are eliminated in consolidation as required by U.S. GAAP. 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, 2016 and December 31, 2015 , the Company was servicing $28,446,136 and $27,995,907 , 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, 2016 and 2015 , is as follows: Three Months Ended March 31, 2016 March 31, 2015 Assets securitized $ 3,621,496 $ 3,981,855 Net proceeds from new securitizations (a) $ 2,633,626 $ 3,060,862 Cash received for servicing fees (b) 194,365 159,802 Net distributions from Trusts (b) 431,591 300,487 Total cash received from Trusts $ 3,259,582 $ 3,521,151 (a) Includes additional advances on existing securitizations. (b) These amounts are not reflected in the accompanying condensed consolidated statements of cash flows because the cash flows are intra-company and eliminated in consolidation. Off-balance sheet variable interest entities The Company has completed sales to VIEs that met sale accounting treatment in accordance with the applicable guidance. Due to the nature, purpose, and activity of the transactions, the Company determined for consolidation purposes that it either does not hold potentially significant variable interests or is not the primary beneficiary as a result of the Company's limited further involvement with the financial assets. For such transactions, the transferred financial assets are removed from the Company's condensed consolidated balance sheets. In certain situations, the Company remains the servicer of the financial assets and receives servicing fees that represent adequate compensation, and may reacquire assets from the Trusts through the exercise of an optional clean-up call, as permitted through the respective servicing agreements. The Company also recognizes a gain or loss for the difference between the cash proceeds and carrying value of the assets sold. During the three months ended March 31, 2016 and 2015 , the Company executed no off-balance sheet securitizations with VIEs with which it has continuing involvement. As of March 31, 2016 and December 31, 2015 , the Company was servicing $3,407,333 and $3,897,223 , respectively, of gross retail installment contracts that have been sold in off-balance sheet securitizations and were subject to an optional clean-up call. 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, 2016 and 2015 is as follows: Three Months Ended March 31, 2016 March 31, 2015 Receivables securitized $ — $ — Net proceeds from new securitizations $ — $ — Cash received for servicing fees 15,701 5,304 Total cash received from securitization trusts $ 15,701 $ 5,304

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Company manages its exposure to changing interest rates using derivative financial instruments. In certain circumstances, the Company is required to hedge its interest rate risk on its secured structured financings and the borrowings under its revolving credit facilities. The Company uses both interest rate swaps and interest rate caps to satisfy these requirements and to hedge the variability of cash flows on securities issued by securitization Trusts and borrowings under the Company's warehouse facilities. Certain of the Company’s interest rate swap agreements are designated as cash flow hedges for accounting purposes. Changes in the fair value of derivatives designated as cash flow hedges are recorded as a component of accumulated other comprehensive income (AOCI), to the extent that the hedge relationships are effective, and amounts are reclassified from AOCI to earnings as the forecasted transactions impact earnings. Ineffectiveness, if any, associated with changes in the fair value of derivatives designated as cash flow hedges is recorded currently in earnings. The Company’s remaining interest rate swap agreements, as well as its interest rate cap agreements and the corresponding options written in order to offset the interest rate cap agreements, are not designated as hedges for accounting purposes. Changes in the fair value of derivative instruments not designated as hedges for accounting purposes are reflected in earnings. The underlying notional amounts and aggregate fair values of these agreements at March 31, 2016 and December 31, 2015 , were as follows: March 31, 2016 December 31, 2015 Notional Fair Value Notional Fair Value Interest rate swap agreements designated as cash flow hedges $ 10,152,000 $ (59,008 ) $ 9,150,000 $ 1,706 Interest rate swap agreements not designated as hedges 1,984,000 (6,580 ) 2,399,000 (1,306 ) Interest rate cap agreements 9,159,361 13,716 10,013,912 32,951 Options for interest rate cap agreements 9,159,361 (13,785 ) 10,013,912 (32,977 ) The aggregate fair value of the interest rate swap agreements is included on the Company’s condensed consolidated balance sheets in other assets or other liabilities, as appropriate. The interest rate cap agreements are included in other assets, and the related options in other liabilities, on the Company’s condensed consolidated balance sheets. See Note 13 for additional disclosure of fair value and balance sheet location of the Company's derivative financial instruments. 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, 2016 and December 31, 2015 . 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) agreements for all derivative financial instruments. 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, 2016 and December 31, 2015 : Offsetting of Financial Assets Gross Amounts Not Offset in the Gross Gross Amounts Net Amounts of Assets Presented Financial Cash Net March 31, 2016 Interest rate swaps - Santander & affiliates $ 189 $ — $ 189 $ — $ — $ 189 Interest rate swaps - third party — — — — — — Interest rate caps - Santander & affiliates 4,908 — 4,908 — — 4,908 Interest rate caps - third party 8,809 — 8,809 — — 8,809 Total derivatives subject to a master netting arrangement or similar arrangement 13,906 — 13,906 — — 13,906 Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative assets $ 13,906 $ — $ 13,906 $ — $ — $ 13,906 Total financial assets $ 13,906 $ — $ 13,906 $ — $ — $ 13,906 December 31, 2015 Interest rate swaps - Santander & affiliates $ 4,607 $ — $ 4,607 $ — $ — $ 4,607 Interest rate swaps - third party 3,863 — 3,863 — — 3,863 Interest rate caps - Santander & affiliates 12,724 — 12,724 — — 12,724 Interest rate caps - third party 20,227 — 20,227 — — 20,227 Total derivatives subject to a master netting arrangement or similar arrangement 41,421 — 41,421 — — 41,421 Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative assets $ 41,421 $ — $ 41,421 $ — $ — $ 41,421 Total financial assets $ 41,421 $ — $ 41,421 $ — $ — $ 41,421 Offsetting of Financial Liabilities Gross Amounts Not Offset in the Gross Gross Amounts Net Amounts of Liabilities Presented Financial Cash Net March 31, 2016 Interest rate swaps - Santander & affiliates $ 18,179 $ — $ 18,179 $ — $ (17,336 ) $ 843 Interest rate swaps - third party 47,599 — 47,599 — (47,599 ) — Back to back - Santander & affiliates 4,908 — 4,908 — (4,908 ) — Back to back - third party 8,877 — 8,877 — (8,877 ) — Total derivatives subject to a master netting arrangement or similar arrangement 79,563 — 79,563 — (78,720 ) 843 Total return swap — — — — — — Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative liabilities $ 79,563 $ — $ 79,563 $ — $ (78,720 ) $ 843 Total financial liabilities $ 79,563 $ — $ 79,563 $ — $ (78,720 ) $ 843 December 31, 2015 Interest rate swaps - Santander & affiliates $ 4,977 $ (3,430 ) $ 1,547 $ — $ — $ 1,547 Interest rate swaps - third party 3,093 (3,093 ) — — — — Back to back - Santander & affiliates 12,724 (12,270 ) 454 — — 454 Back to back - third party 20,253 (20,253 ) — — — — Total derivatives subject to a master netting arrangement or similar arrangement 41,047 (39,046 ) 2,001 — — 2,001 Total return swap — — — — — — Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative liabilities $ 41,047 $ (39,046 ) $ 2,001 $ — $ — $ 2,001 Total financial liabilities $ 41,047 $ (39,046 ) $ 2,001 $ — $ — $ 2,001 (a) Cash collateral pledged is reported in Other assets and Due from affiliate 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, 2016 and 2015 were as follows: Three Months Ended Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Income to Interest Expense Interest rate swap agreements designated as cash flow hedges $ 208 $ (73,005 ) $ (12,082 ) Derivative instruments not designated as hedges $ (5,499 ) Three Months Ended Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Income to Interest Expense Interest rate swap agreements designated as cash flow hedges $ 223 $ (31,536 ) $ (11,071 ) Derivative instruments not designated as hedges $ (2,429 ) The ineffectiveness related to the interest rate swap agreements designated as cash flow hedges was insignificant for the three months ended March 31, 2016 and 2015 . The Company estimates that approximately $48,000 of unrealized losses 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, 2016
Other Assets [Abstract]
Other Assets	Other Assets Other assets were comprised as follows: March 31, December 31, Upfront fee (a) $ 106,251 $ 110,000 Vehicles (b) 251,780 203,906 Manufacturer subvention payments receivable (a) 146,735 132,856 Accounts receivable 24,132 27,028 Prepaids 44,332 33,183 Derivative assets (Note 7) 65,285 24,090 Other 17,934 18,581 Total other assets $ 656,449 $ 549,644 (a) 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. (b) Includes vehicles obtained through repossession as well as vehicles obtained due to lease terminations.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded income tax expense of $116,129 ( 36.7% effective tax rate) and $115,688 ( 32.0% effective tax rate, as restated - Note 1) during the three months ended March 31, 2016 and 2015 , respectively. The increase in effective tax rate is primarily due to discrete adjustments recognized during the three months ended March 31, 2015 . 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. At March 31, 2016 , the Company had a net receivable from affiliates under the tax sharing agreement of $85 , which was included in Related party taxes receivable in the condensed consolidated balance sheet. At December 31, 2015 , the Company had a net payable to affiliates under the tax sharing agreement of $342 , which was included in Related party taxes payable 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, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies 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 beginning in June 2016 if returns on the purchased pools are greater than originally expected. The Company had $56,791 and $57,573 accrued at March 31, 2016 and December 31, 2015 , respectively, related to this obligation. 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, 2016 and December 31, 2015 , there was an outstanding balance of $26,015 and $26,941 , respectively and a committed amount of $28,549 and $27,385 , respectively. Under terms of agreements with LendingClub, the Company was committed to purchase, at a minimum, through March 31, 2016 , the lesser of $30,000 per month or 50% of LendingClub’s aggregate "near-prime" (as that term is defined in the agreements) originations and, thereafter through July 2017, the lesser of $30,000 per month or 50% of LendingClub’s aggregate near-prime originations. This commitment could be reduced or canceled with 90 days ' notice. On October 9, 2015, the Company sent a notice of termination to LendingClub, and, accordingly, ceased originations on this platform on January 7, 2016. The Company is 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 these credit lines do not have a specified maturity, but rather can be terminated at any time in the event of adverse credit changes or lack of use, the Company has not recorded an allowance for unfunded commitments. As of March 31, 2016 and December 31, 2015 , the Company was obligated to purchase $11,596 and $12,486 , 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. The retailer also has 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, has the right to retain up to 20% of new accounts subsequently originated. Under terms of an application transfer agreement with an OEM other than FCA, 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 pays the OEM a referral fee, comprised of a volume bonus fee and a loss betterment bonus fee. The loss betterment bonus fee is 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 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 $836 and downward adjustments of $147 for the three months ended March 31, 2016 and 2015 , 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, 2016 , 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 facilities and privately issued amortizing notes. These guarantees are limited to the obligations of the Company as servicer. Under terms of the Chrysler Agreement, the Company must make revenue sharing payments to FCA and also must make gain-sharing payments when residual gains on leased vehicles exceed a specified threshold. The Company had accrued $10,701 and $12,054 at March 31, 2016 and December 31, 2015 , respectively, related to this obligation. The Company has a flow agreement with Bank of America whereby the Company is committed to sell up to a specified amount of eligible loans to the bank each month through May 2018 . Prior to October 1, 2015, the amount of this monthly commitment was $300,000 . On October 1, 2015, the Company and Bank of America amended the flow agreement to increase the maximum commitment to sell to $350,000 of eligible loans each month, and to change the required written notice period from either party, in the event of termination of the agreement, from 120 days to 90 days . 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. The Company had accrued $8,004 and $6,331 at March 31, 2016 and December 31, 2015 , respectively, related to this obligation. 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. On June 25, 2015, the Company executed an amendment to the servicing agreement with CBP, which increased the servicing fee the Company receives. The Company and CBP also amended the flow agreement which reduced, 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 that decreased the servicing fee the Company receives on loans sold to CBP by the Company under the flow agreement. The Company had accrued $3,354 and $3,375 at March 31, 2016 and December 31, 2015 , respectively, related to the loss-sharing obligation. 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. The Company additionally has 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. The Company is party to a forward flow asset sale agreement with a third party under terms of which the Company is committed to sell charged off loan receivables in bankruptcy status on a quarterly basis until sales total at least $350,000 in proceeds. Any sale after the total sales have reached $275,000 is subject to a market price check. As of March 31, 2016 and December 31, 2015 , the remaining aggregate commitment was $195,652 and $200,707 , respectively. In connection with the bulk sales of Chrysler Capital leases (including the sale described in Note 3), the Company is obligated to make quarterly payments to the purchaser sharing residual losses for lease terminations with losses over a specific percentage threshold. The estimated guarantee liability, net, was $1,929 and $2,893 , net, as of March 31, 2016 and December 31, 2015 , respectively. Legal 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. 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. 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 Company’s 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. The complaints in the Parmelee Lawsuit and Benson Lawsuit allege 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 the Company’s change in its methodology for estimating its allowance for credit losses and correction of such allowance for prior periods in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. The complaints assert claims under Sections 10(b) and 20(a) of the Exchange Act, and Rule 10b-5 promulgated thereunder, and seek damages and other relief. Further, the Company is party to, or is periodically otherwise involved in, reviews, investigations, and proceedings (both formal and informal), and information-gathering requests, by government and self-regulatory agencies, including the Federal Reserve, the CFPB, the DOJ, the SEC, the FTC and various state regulatory agencies. Currently, such proceedings include 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. Additionally, on October 28, 2014, the Company received a preservation letter and request for documents from the SEC requesting the preservation and production of documents and communications that, among other things, relate to the underwriting and securitization of auto loans since January 1, 2011. The Company also has received civil subpoenas from various state Attorneys General requesting similar documents and communications. The Company is complying with the requests for information and document preservation. On November 4, 2015, the Company entered into an Assurance of Discontinuance (AOD) with the Office of Attorney General of the Commonwealth of Massachusetts (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 in 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 us, 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, as well as 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 us that it has initiated, based on the referral from the CFPB, an investigation under the ECOA of our pricing of automobile loans. The Company does not believe that there are any proceedings, threatened or pending, that, if determined adversely, would have a material adverse effect on the consolidated financial position, results of operations, or liquidity of the Company.

Related-Party Transactions

Related-Party Transactions	3 Months Ended
	Mar. 31, 2016
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: Interest expense, including unused fees, for affiliate lines/letters of credit for the three months ended March 31, 2016 and 2015 , was as follows: Three Months Ended March 31, 2016 March 31, 2015 Line of credit agreement with Santander - New York Branch (Note 5) $ 20,273 $ 25,484 Line of credit agreement with SHUSA (Note 5) 2,864 1,290 Accrued interest for affiliate lines/letters of credit at March 31, 2016 and December 31, 2015 , was as follows: March 31, December 31, 2015 Line of credit agreement with Santander - New York Branch (Note 5) $ 5,997 $ 6,015 Line of credit agreement with SHUSA (Note 5) 1,450 267 In August 2015, under a agreement with Santander, the Company began paying Santander 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 $1,578 for the three months ended March 31, 2016 . As of March 31, 2016 , the Company had $3,860 of related fees payable to Santander. The Company has derivative financial instruments with Santander and affiliates with outstanding notional amounts of $11,340,000 and $13,739,000 at March 31, 2016 and December 31, 2015 , respectively (Note 7). The Company had a collateral overage on derivative liabilities with Santander and affiliates of $31,619 and $20,775 at March 31, 2016 and December 31, 2015 , respectively. Interest expense and mark-to-market adjustments on these agreements include amounts totaling $10,150 and $17,242 for the three months ended March 31, 2016 and 2015 , respectively. The Company is required to permit SBNA first right to review and assess Chrysler Capital dealer lending opportunities; SBNA pays the Company a relationship management fee based upon the performance and yields of Chrysler Capital dealer loans held by SBNA. As of March 31, 2016 and December 31, 2015 , the Company had relationship management fees receivable from SBNA of $525 and $419 , respectively. The Company recognized $1,279 and $1,623 of relationship management fee income for the three months ended March 31, 2016 and 2015 , respectively. On April 15, 2016, the relationship management fee was replaced with an origination fee and annual renewal fee for each loan. All Chrysler Capital receivables from dealers, including receivables held by SBNA and by the Company, are serviced by SBNA. Servicing fee expense to SBNA for the Company's Chrysler Capital receivables from dealers totaled $34 and $86 for the three months ended March 31, 2016 and 2015 , respectively. As of March 31, 2016 and December 31, 2015 , the Company had $36 and $37 , 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, 2016 or December 31, 2015 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 $5,065 and $2,737 , related to such originations, as of March 31, 2016 and December 31, 2015 , respectively. The Company is amortizing a $9,000 referral fee received in connection with the dealer lending arrangements into income over a ten -year period, ending on the July 1, 2022 termination date of the governing agreements. As of March 31, 2016 and December 31, 2015 , the unamortized fee balance was $6,525 and $6,750 , respectively. The Company recognized $225 of income related to the referral fee for each of the three -month periods ended March 31, 2016 and 2015 . 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 $2,108 and $1,944 for the three months ended March 31, 2016 and 2015 , respectively. Other information on the serviced auto loan and retail installment contract portfolios for SBNA as of March 31, 2016 and December 31, 2015 is as follows: March 31, December 31, Total serviced portfolio $ 653,186 $ 692,291 Cash collections due to owner 24,234 19,302 Servicing fees receivable 2,244 1,476 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 provides servicing and received an origination fee on all leases originated under this agreement. Pursuant to the Chrysler Agreement, the Company pays FCA on behalf of SBNA for residual gains and losses on the flowed leases. The Company also services leases it sold to SBNA in 2014. Origination fee income recognized under the agreement totaled zero and $5,624 for the three months ended March 31, 2016 and 2015 , respectively. Servicing fee income recognized on leases serviced for SBNA totaled $1,549 and $1,457 for the three months ended March 31, 2016 and 2015 , respectively. Other information on the consumer vehicle lease portfolio serviced for SBNA as of March 31, 2016 and December 31, 2015 is as follows: March 31, December 31, Total serviced portfolio $ 1,964,315 $ 2,198,519 Cash collections due to owner 1,317 132 Servicing fees receivable 821 784 Revenue share reimbursement receivable 2,514 1,370 On June 30, 2014, the Company entered into an indemnification agreement with SBNA whereby SC 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, SC 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 SC, in the case of payments and sale proceeds. As of March 31, 2016 and December 31, 2015 , the balance in the collateral account was $31,598 and $34,516 , respectively. As of March 31, 2016 and December 31, 2015 , the Company had a recorded liability of $2,691 related to the residual losses covered under the agreement. In December 2015, the Company formed a new wholly-owned subsidiary, Santander Consumer International PR, LLC (SCI), and SCI opened deposit accounts with Banco Santander Puerto Rico, an affiliated entity. As of March 31, 2016 and December 31, 2015 , SCI had cash of $4,420 and $4,920 , respectively, on deposit with Banco Santander Puerto Rico. During 2015, Santander Investment Securities Inc. (SIS), an affiliated entity, purchased a portion of the Class B notes of SDART 2013-3, a consolidated securitization Trust, with a principal balance of $725 as of March 31, 2016 and December 31, 2015 , respectively. As of March 31, 2016 and December 31, 2015 , the unpaid note balance of the Class B notes owned by SIS was $237 and $510 , respectively. In addition, SIS 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 each of the three -month periods ended March 31, 2016 and 2015 , totaled $100 , and are accounted for as 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, totaled $24 and $102 for the three months ended March 31, 2016 and 2015 , 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. The MSA enables SC to review credit applications of retail store customers. Under terms of the MSA, the Company had net originations of personal revolving loans of zero and $7,626 during the three months ended March 31, 2016 and 2015 , respectively. As of March 31, 2016 and December 31, 2015, this cost method investment was carried at a value of zero in the Company's condensed consolidated balance sheets as it had been fully impaired. On March 24, 2016, the Company notified most of the retailers for which it reviews credit applications that it would no longer fund new originations effective April 11, 2016. On July 2, 2015, the Company announced the departure of Mr. Dundon from his roles as Chairman of the Board and Chief Executive Officer 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. The Separation Agreement also provided for the modification of terms for certain equity-based awards (Note 14). Certain of the payments, agreements to make payments and benefits may be effective only upon receipt of certain required regulatory approvals. As of March 31, 2016 and December 31, 2015 , the Company had recorded a liability for $115,139 in contemplation of the payments and benefits due under the terms of the Separation Agreement. Mr. Dundon is serving as a consultant to the Company, at a mutually agreed rate, for a twelve-month period following the date of the Separation Agreement. Mr. Dundon also served as a Director on the Company's Board until his resignation from the Board on April 1, 2016. As of March 31, 2016 , the Company has not made any payments to Mr. Dundon arising from or pursuant to the terms of the Separation Agreement. On July 2, 2015, Mr. Dundon entered into a Separation Agreement with the Company, DDFS LLC, SHUSA and Santander, under which his roles as Chairman of the Board and CEO were terminated effective as of that date. The Separation Agreement provided, among other things, that Mr. Dundon resign as Chairman of the Board, as CEO of the Company and as an officer and/or director of any of the Company’s subsidiary companies. 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 our Common Stock owned by DDFS 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 loan, which, as of March 31, 2016 and December 31, 2015 , had an unpaid principal balance of $290,000 . 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 and remains subject to receipt of applicable regulatory approvals. 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 Company 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. During the three months ended March 31, 2015, the Company paid certain expenses incurred by Mr. Dundon in the operation of a private plane in which he owns a partial interest when used for SC business within the contiguous 48 states. Under this practice, payment is based on a set flight time hourly rate, and the amount of reimbursement is not subject to a maximum cap per fiscal year. For the three months ended March 31, 2015, the Company paid $183 to Meregrass, Inc., the Company managing the plane's operations, with an average rate of $5.8 per hour. Under an agreement with Mr. Dundon, the Company is provided access to a suite at an event center that is leased by Mr. Dundon, and which the Company uses for business purposes. The Company reimburses Mr. Dundon for the use of this space on a periodic basis. As of March 31, 2016 , Jason Kulas, the Company's CEO, Mr. Dundon, and a Santander employee who was a member of the SC 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, 2016 and 2015 , the Company paid $1,576 and $522 , respectively, in lease payments on this property. Future minimum lease payments for the 12 -year term of the lease total $73,889 . The Company is party to certain agreements with Bluestem whereby the Company is committed to purchase receivables originated by Bluestem for an initial term ending in April 2020 and renewable through April 2022 at Bluestem's option. Bluestem is owned by Capmark, a company in which affiliates of Centerbridge own an approximately 32% interest. During the three months ended March 31, 2015, Centerbridge decreased its ownership in SC from approximately 1% as of January 1, 2015, to zero as of March 31, 2015. Further, an individual that was a member of SC's Board until July 15, 2015, is a member of Centerbridge management and also serves on the board of directors of Capmark. During the three months ended March 31, 2015 , the Company advanced $158,229 to, and received $277,360 in payments on, receivables originated under its agreements with the retailer.

Computation of Basic and Dilute

Computation of Basic and Diluted Earnings per Common Share	3 Months Ended
	Mar. 31, 2016
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 are considered to be participating securities because holders of such shares have non-forfeitable dividend rights in the event of a declaration of a dividend on the Company’s common shares. The calculation of EPS excludes 3,724,001 and 1,512,091 employee stock option awards for the three months ended March 31, 2016 and 2015 , respectively, as the effect of those securities would be anti-dilutive. The following table represents EPS numbers for the three months ended March 31, 2016 and 2015 : Three Months Ended 2016 2015 Earnings per common share (As Restated - Note 1) Net income $ 200,693 $ 246,282 Weighted average number of common shares outstanding before restricted participating shares (in thousands) 357,625 348,955 Weighted average number of participating restricted common shares outstanding (in thousands) 350 467 Weighted average number of common shares outstanding (in thousands) 357,975 349,422 Earnings per common share $ 0.56 $ 0.70 Earnings per common share - assuming dilution Net income $ 200,693 $ 246,282 Weighted average number of common shares outstanding (in thousands) 357,975 349,422 Effect of employee stock-based awards (in thousands) 2,253 7,232 Weighted average number of common shares outstanding - assuming dilution (in thousands) 360,228 356,654 Earnings per common share - assuming dilution $ 0.56 $ 0.69

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2016
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. Fair value estimates, methods, and assumptions are as follows: March 31, 2016 December 31, 2015 Level Carrying Estimated Carrying Estimated Cash and cash equivalents (a) 1 $ 42,047 $ 42,047 $ 18,893 $ 18,893 Finance receivables held for sale, net (b) 3 2,324,190 2,334,887 2,868,603 2,889,043 Finance receivables held for investment, net (c) 3 24,082,180 25,715,311 23,479,680 24,960,092 Restricted cash (a) 1 2,636,216 2,636,216 2,236,329 2,236,329 Notes payable — credit facilities (d) 3 8,389,269 8,389,269 6,902,779 6,902,779 Notes payable — secured structured financings (e) 2 20,340,959 20,406,382 20,872,900 20,917,733 Notes payable — related party (f) 3 2,775,000 2,775,000 2,600,000 2,600,000 (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 sale, net — Finance receivables held for sale, net are comprised of retail installment contracts acquired individually and personal loans and are carried at the lower of cost or market, as determined on an aggregate basis for each type of receivable. • Retail installment contracts acquired individually — The estimated fair value is based on prices obtained in recent market transactions or expected to be obtained in the subsequent sales for similar assets. • Personal loans — 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 discounted cash flow (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. (c) 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 and capital lease receivables are carried at amortized cost, net of credit loss allowance and gross investments, net of unearned income and allowance for lease losses, respectively. Management believes that the terms of these credit agreements approximate market terms for similar credit agreements. (d) 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. (e) Notes payable — secured structured financings — The estimated fair value of notes payable related to secured structured financings is calculated based on market quotes for the Company’s publicly traded debt and estimated market rates currently available from recent transactions involving similar debt with similar credit risks. (f) 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. The following table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis at March 31, 2016 and December 31, 2015 , and are categorized using the fair value hierarchy: Fair Value Measurements at March 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) $ 8,809 $ — $ 8,809 $ — Due from affiliates — trading interest rate caps (a) 4,908 — 4,908 — Due from affiliates — cash flow hedging interest rate swaps (a) 189 — 189 — Other liabilities — trading options for interest rate caps (a) 8,877 — 8,877 — Due to affiliates — trading options for interest rate caps (a) 4,908 — 4,908 — Other liabilities — cash flow hedging interest rate swaps (a) 44,481 — 44,481 — Due to affiliates — cash flow hedging interest rate swaps (a) 14,717 — 14,717 — Other liabilities — trading interest rate swaps (a) 3,118 — 3,118 — Due to affiliates — trading interest rate swaps (a) 3,462 — 3,462 — Retail installment contracts acquired individually (b) 4,139 — — 4,139 Fair Value Measurements at December 31, 2015 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) $ 20,227 $ — $ 20,227 $ — Due from affiliates — trading interest rate caps (a) 12,724 — 12,724 — Other assets — cash flow hedging interest rate swaps (a) 3,863 — 3,863 — Due from affiliates — cash flow hedging interest rate swaps (a) 3,431 — 3,431 — Due from affiliates — trading interest rate swaps (a) 1,176 — 1,176 — Other liabilities — trading options for interest rate caps (a) 20,253 — 20,253 — Due to affiliates — trading options for interest rate caps (a) 12,724 — 12,724 — Other liabilities — cash flow hedging interest rate swaps (a) 3,093 — 3,093 — Due to affiliates — cash flow hedging interest rate swaps (a) 2,496 — 2,496 — Due to affiliates — trading interest rate swaps (a) 2,481 — 2,481 — Retail installment contracts acquired individually (b) 6,770 — — 6,770 (a) The valuation of swaps and caps 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) 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. The table below presents the changes in all Level 3 balances for the three months ended March 31, 2016 : Retail Installment Contracts Held for Investment Fair value, December 31, 2015 $ 6,770 Gains/(losses) in earnings (2,631 ) Fair value, March 31, 2016 $ 4,139 The following table presents the Company’s assets and liabilities that are measured at fair value on a nonrecurring basis at March 31, 2016 and December 31, 2015 , and are categorized using the fair value hierarchy: Fair Value Measurements at March 31, 2016 Total Quoted Prices Significant Significant Lower of cost or fair value expense (benefit) (d) Other assets — vehicles (a) $ 251,780 $ — $ 251,780 $ — $ — Personal loans held for sale (b) 978,819 — — 978,819 68,338 Intangible assets not subject to amortization-trademark (c) 33,915 — — 33,915 20,300 Fair Value Measurements at December 31, 2015 Total Quoted Prices Significant Significant Lower of cost or fair value expense (benefit) (d) Other assets — vehicles (a) $ 203,906 $ — $ 203,906 $ — $ — Personal loans held for sale (b) $ 1,962,893 $ — $ — $ 1,962,893 $ 609,869 (a) Represents vehicles in repossession or lease termination status at period-end, which have been charged off against credit loss allowance at fair value. 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 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. (c) Represents the intangibles not subject to amortization for which the Company has recorded an impairment of $20,300 during the three months ended March 31, 2016. The estimated fair value for the trademark is calculated based on a DCF analysis in which the Company uses significant unobservable inputs on key assumptions, including originations growth, discount rate and royalty rate. (d) 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.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Benefit Plans	Employee Benefit Plans SC Compensation Plan — 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 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. 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 $858 and $604 recorded for the three months ended March 31, 2016 and 2015 , respectively. A summary of the Company’s stock options and related activity as of and for the three months ended March 31, 2016 is as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Options outstanding at January 1, 2016 12,522,706 $ 11.84 6.4 $ 50,163 Granted 48,000 13.77 — — Exercised (104,535 ) 9.21 — 209 Expired (433,642 ) 10.45 — — Forfeited (242,115 ) 14.91 — — Options outstanding at March 31, 2016 11,790,414 11.86 6.1 (16,200 ) Options exercisable at March 31, 2016 9,196,637 11.31 6.0 (7,517 ) 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, 2016. Under the Omnibus Incentive Plan, a portion of these RSUs vest immediately upon grant, and a portion vest annually over the following three years . The Company also has granted certain officers RSUs that vest over a three -year period, with vesting dependent on Banco Santander performance over that time. After vesting, stock obtained by employees and officers through RSUs must be held 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. Subject to limitations of banking regulators and applicable law, Mr. Dundon’s Separation Agreement provided that his unvested restricted stock awards would vest in full in accordance with their terms and his unvested stock options would vest in full. Further, on July 2, 2015, Mr. Dundon exercised a right under the Separation Agreement to settle his options for a cash payment. 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. As of the date hereof, these actions have not been approved by banking regulators. Subject to applicable regulatory approvals and law, Mr. Dundon’s outstanding stock options will 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. As a result of the modification of Mr. Dundon's stock option awards, subject to limitations of banking regulators and applicable law, the Company determined that the modified stock option awards should no longer be accounted for within equity, and should be recognized as a liability at fair value. In addition, the modification and vesting of Mr. Dundon's unvested RSUs also resulted in the Company recognizing additional stock compensation expense based upon the fair value of the restricted stock awards on the date of the modification. As of March 31, 2016 , the Company had not made any payments associated with Mr. Dundon's exercise of the cash settlement option, and the Company had recorded a liability in 'Due to affiliates' of $102,799 associated with the modified awards.

Shareholders' Equity

Shareholders' Equity	3 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Shareholders' Equity	Shareholders' Equity Treasury Stock The Company had 69,005 shares of treasury stock outstanding, with a cost of $1,250 as of March 31, 2016 and December 31, 2015 . These shares include 3,154 shares the Company repurchased prior to the IPO as a result of an employee leaving the Company, and 65,851 shares have been 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, 2016 and 2015 is as follows: Three Months Ended March 31, 2016 March 31, 2015 Beginning balance, unrealized gains (losses) on cash flow hedges $ 2,125 $ 3,553 Other comprehensive loss before reclassifications (45,762 ) (19,791 ) Amounts reclassified out of accumulated other comprehensive income (loss) (a) 7,572 6,948 Ending balance, unrealized losses on cash flow hedges $ (36,065 ) $ (9,290 ) (a) Amounts reclassified out of accumulated other comprehensive income (loss) during the three months ended March 31, 2016 and 2015 consist of the following: Three Months Ended March 31, 2016 Three Months Ended March 31, 2015 Reclassification Amount reclassified Income statement line item Amount reclassified Income statement line item Cash flow hedges: Settlements of derivatives $ 12,082 Interest expense $ 11,071 Interest expense Tax benefit (4,510 ) (4,123 ) Net of tax $ 7,572 $ 6,948 Dividend Restrictions The Dodd-Frank Act requires certain banks and bank holding companies, including SHUSA, to perform stress testing and submit a capital plan to the Federal Reserve on an annual basis. On March 11, 2015, the FRB informed SHUSA that, based on qualitative concerns, the FRB objected to SHUSA’s capital plan pursuant to CCAR that SHUSA had previously submitted to the FRB. This objection followed the FRB's objection to the capital plan submitted the previous year, following which SHUSA entered into a written agreement with the FRB memorializing discussions under which, among other things, SHUSA is prohibited from allowing its non-wholly-owned nonbank subsidiaries, including the Company, to declare or pay any dividend, or to make any capital distribution, until such time as SHUSA has submitted to the FRB a capital plan and the FRB has issued a written non-objection to the plan, or the FRB otherwise issues its written non-objection to the proposed capital action. The Company will not pay any future dividends until such time as the FRB issues a written non-objection to a capital plan submitted by SHUSA or the FRB otherwise issues its written non-objection to the payment of a dividend by the Company. SHUSA submitted its most recent annual capital plan on April 5, 2016.

Investment Gains (Losses), Net

Investment Gains (Losses), Net	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Investment Gains (Losses), Net	Investment Gains (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 gains (losses), net was comprised of the following for the three months ended March 31, 2016 and 2015 : Three Months Ended March 31, 2016 March 31, 2015 Gain on sale of loans and leases $ 1,638 $ 21,247 Lower of cost or market adjustments (68,338 ) — Other gains, losses and impairments, net (6,451 ) — $ (73,151 ) $ 21,247 The lower of cost or market adjustments for the three months ended March 31, 2016 included $101,347 in customer default activity and favorable adjustments of $33,009 related to net changes in the unpaid principal balance on the personal lending portfolio, 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, 2016
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 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, 2016 and December 31, 2015 , and for the three months ended March 31, 2016 and 2015 , 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 generally accepted accounting principles for complete financial statements. In the opinion of management, these financial statements contain all adjustments, consisting of normal recurring adjustments, necessary to 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 Company’s Annual Report on Form 10-K for the year ended December 31, 2015 , filed on March 31, 2016. 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, 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 Recent Accounting Pronouncements	Recently Adopted Accounting Standards In June 2014, the FASB issued ASU 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could be Achieved after the Requisite Service Period. This standard affects entities that issue share-based payments when the terms of an award stipulate that a performance target could be achieved after an employee completes the requisite service period. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. In January 2015, the FASB issued ASU 2015-01, Income Statement - Extraordinary and Unusual Items. This standard simplifies income statement classification by removing the concept of extraordinary items from U.S. GAAP, and as a result, items that are both unusual and infrequent no longer will be separately reported net of tax after continuing operations. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. In February 2015, the FASB issued ASU 2015-02, Consolidation: Amendments to the Consolidation Analysis. This ASU changes the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. In April 2015, the FASB issued ASU 2015-05, Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. This ASU clarifies when fees paid in a cloud computing arrangement pertain to the acquisition of a software license, services, or both. This guidance became effective for the Company January 1, 2016 and implementation of this guidance did not have a significant impact on the Company’s financial position, results of operations, or cash flows. Recent Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which provides guidance on a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. The effective date for this ASU, which was deferred by ASU 2015-14 issued in August 2015, is for fiscal years 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 also 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). 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. Early adoption of the guidance is not permitted. The Company is currently evaluating the impact of adopting ASU 2014-09 and the related updates to it on its financial position, results of operations and disclosures. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities , which provides guidance for the recognition, measurement, presentation, and disclosure of financial assets and liabilities. The guidance will be effective for the fiscal year beginning after December 15, 2017, including interim periods within that year. The Company is in the process of evaluating the impacts of the adoption of this ASU. 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 is in the process of evaluating the impacts of the adoption of this ASU. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, which is intended to simplify several aspects of the accounting for share-based payment award transactions. The guidance will be effective for the fiscal year beginning after December 15, 2016, including interim periods within that year. The Company is in the process of evaluating the impacts of the adoption of this ASU.

Description of Business, Basi25

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices (Tables)	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Error Corrections and Prior Period Adjustments	The following table summarizes the impacts of the corrections on our condensed consolidated statement of income for the three months ended March 31, 2015 : As Reported Corrections As Restated Leased vehicle income $ 332,946 $ (101,330 ) $ 231,616 Total finance and other interest income 1,570,289 (101,330 ) 1,468,959 Leased vehicle expense 273,064 (101,330 ) 171,734 Provision for credit losses 605,981 68,706 674,687 Net finance and other interest income after provision for credit losses 542,388 (68,706 ) 473,682 Net finance and other interest income after provision for credit losses and profit sharing 528,872 (68,706 ) 460,166 Income before income taxes 430,676 (68,706 ) 361,970 Income tax expense 141,426 (25,738 ) 115,688 Net income $ 289,250 $ (42,968 ) $ 246,282 Net income $ 289,250 $ (42,968 ) $ 246,282 Comprehensive income $ 276,407 $ (42,968 ) $ 233,439 Net income per common share (basic) $ 0.83 $ (0.13 ) $ 0.70 Net income per common share (diluted) $ 0.81 $ (0.12 ) $ 0.69 The following table summarizes the impacts of the corrections on our condensed consolidated statement of equity for the three months ended March 31, 2015 : Retained Earnings Total Stockholders’ Equity As Reported Corrections As Restated As Reported Corrections As Restated Balance — January 1, 2015 $ 1,990,787 $ 35,323 $ 2,026,110 $ 3,558,349 $ 35,323 $ 3,593,672 Net income 289,250 (42,968 ) 246,282 289,250 (42,968 ) 246,282 Balance — March 31, 2015 $ 2,280,037 $ (7,645 ) $ 2,272,392 $ 3,850,481 $ (7,645 ) $ 3,842,836 The following table summarizes the impacts of the corrections on our condensed consolidated statement of cash flows for the three months ended March 31, 2015 : As Reported Corrections As Restated Cash flows from operating activities: Net income $ 289,250 $ (42,968 ) $ 246,282 Adjustments to reconcile net income to net cash provided by operating activities: Provision for credit losses 605,981 68,706 674,687 Depreciation and amortization 297,521 (101,330 ) 196,191 Accretion of discount (234,055 ) 101,330 (132,725 ) Deferred tax expense 24,463 (25,738 ) (1,275 ) The impact of the corrections on the Company's disclosures of the activity in the credit loss allowance for individually acquired loans for the three months ended March 31, 2015 was as follows: Retail Installment Contracts Acquired Individually As Reported Corrections As Restated Balance — beginning of period $ 2,726,338 $ (56,508 ) $ 2,669,830 Provision for credit losses 507,148 68,706 575,854 Balance — end of period $ 2,822,712 $ 12,198 $ 2,834,910 The impact of the corrections on the Company's disclosures of the average recorded investment and income recognized on retail installment contract TDRs for the three months ended March 31, 2015 was as follows: Three Months Ended March 31, 2015 Retail Installment Contracts As Reported Corrections As Restated Average outstanding recorded investment in TDRs $ 3,573,868 $ 709,318 $ 4,283,186 Interest income recognized 196,976 (15,566 ) 181,410 The impact of the corrections on the Company's disclosures of the financial effects of retail installment contract TDRs that occurred for the three months ended March 31, 2015 was as follows: Retail Installment Contracts As Reported Corrections As Restated Outstanding recorded investment before TDR $ 875,809 $ (27,442 ) $ 848,367 Outstanding recorded investment after TDR $ 874,371 $ (17,126 ) $ 857,245 Number of contracts (not in thousands) 52,319 (3,427 ) 48,892 The impact of the corrections on the Company's disclosures of retail installment contracts modified as TDRs that subsequently defaulted for the three months ended March 31, 2015 was as follows: Retail Installment Contracts As Reported Corrections As Restated Recorded investment in TDRs that subsequently defaulted $ 158,518 $ 26,674 $ 185,192 Number of contracts (not in thousands) 11,654 (913 ) 10,741 The impact of the corrections on the Company's disclosures of the income tax expense and effective tax rate for the three months ended March 31, 2015 was as follows: As Reported Corrections As Restated Income tax expense $ 141,426 $ (25,738 ) $ 115,688 Income before income taxes 430,676 (68,706 ) 361,970 Effective tax rate 32.8 % (0.8 )% 32.0 % The impact of the corrections on the Company's disclosures of earnings per share for the three months ended March 31, 2015 was as follows: As Reported Corrections As Restated Earnings per common share Net income attributable to SC shareholders $ 289,250 $ (42,968 ) $ 246,282 Earnings per common share $ 0.83 $ (0.13 ) $ 0.70 Earnings per common share - assuming dilution Net income attributable to SC shareholders $ 289,250 $ (42,968 ) $ 246,282 Earnings per common share - assuming dilution $ 0.81 $ (0.12 ) $ 0.69

Finance Receivables (Tables)

Finance Receivables (Tables)	3 Months Ended
	Mar. 31, 2016
Receivables [Abstract]
Summary of Financing Receivables Held for Investment	Finance receivables held for investment, net is comprised of the following at March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Retail installment contracts acquired individually $ 23,753,177 $ 23,111,146 Purchased receivables 215,344 244,362 Receivables from dealers 74,612 76,025 Personal loans 1,337 941 Capital lease receivables (Note 3) 37,710 47,206 $ 24,082,180 $ 23,479,680 The Company's held for investment portfolio of retail installment contracts acquired individually, receivables from dealers, and personal loans was comprised of the following at March 31, 2016 and December 31, 2015 : March 31, 2016 Retail Installment Contracts Receivables from Personal Loans Unpaid principal balance $ 27,588,943 $ 76,015 $ 1,337 Credit loss allowance (Note 4) (3,423,258 ) (1,403 ) — Discount (455,471 ) — — Capitalized origination costs and fees 42,963 — — Net carrying balance $ 23,753,177 $ 74,612 $ 1,337 December 31, 2015 Retail Installment Contracts Receivables from Personal Loans Unpaid principal balance $ 26,863,946 $ 76,941 $ 941 Credit loss allowance (Note 4) (3,296,023 ) (916 ) — Discount (502,342 ) — — Capitalized origination costs and fees 45,565 — — Net carrying balance $ 23,111,146 $ 76,025 $ 941 Purchased receivables portfolios, which were acquired with deteriorated credit quality, were comprised of the following at March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Unpaid principal balance $ 314,847 $ 359,822 Outstanding recorded investment $ 388,269 $ 419,183 Less: Impairment (172,925 ) (174,821 ) Outstanding recorded investment, net of impairment $ 215,344 $ 244,362
Schedule of Carrying Values of Finance Receivables Held for Sale	The carrying value of the Company's finance receivables held for sale was comprised of the following at March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Retail installment contracts acquired individually $ 1,345,371 $ 905,710 Personal loans 978,819 1,962,893 $ 2,324,190 $ 2,868,603
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, 2016 and 2015 were as follows: For the Three Months Ended 2016 2015 Sales of retail installment contracts to third parties $ 859,955 $ 919,078 Proceeds from sales of charged-off assets $ 6,230 $ 38,376
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, 2016 and December 31, 2015 were as follows: March 31, December 31, 2015 Serviced balance of retail installment contracts and leases sold to third parties $ 11,617,032 $ 12,155,844
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 March 31, 2016 March 31, 2015 Balance — beginning of period $ 193,564 $ 264,416 Accretion of accretable yield (21,329 ) (26,905 ) Reclassifications from (to) nonaccretable difference (24,258 ) 6,144 Balance — end of period $ 147,977 $ 243,655

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2016
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, 2016 and December 31, 2015 : March 31, December 31, Leased vehicles $ 10,004,043 $ 8,862,214 Less: accumulated depreciation (1,736,884 ) (1,517,198 ) Depreciated net capitalized cost 8,267,159 7,345,016 Manufacturer subvention payments, net of accretion (a) (987,901 ) (845,142 ) Origination fees and other costs 19,263 16,156 Net book value $ 7,298,521 $ 6,516,030 (a) The Company recognized accretion of lease subvention payments, as a reduction to depreciation expense, of $151,871 and $101,330 for the three months ended March 31, 2016 and 2015 , respectively.
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, 2016 : Remainder of 2016 $ 977,209 2017 963,272 2018 421,093 2019 24,165 2020 50 Thereafter — Total $ 2,385,789
Schedule of Capital Lease Receivables	Capital lease receivables, net consisted of the following as of March 31, 2016 and December 31, 2015 : March 31, December 31, Gross investment in capital leases $ 70,781 $ 91,393 Origination fees and other 168 155 Less unearned income (17,379 ) (24,464 ) Net investment in capital leases before allowance 53,570 67,084 Less: allowance for lease losses (15,860 ) (19,878 ) Net investment in capital leases $ 37,710 $ 47,206
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, 2016 : Remainder of 2016 $ 17,065 2017 22,721 2018 21,587 2019 8,279 2020 1,037 Thereafter 92 Total $ 70,781

Credit Loss Allowance and Cre28

Credit Loss Allowance and Credit Quality (Tables)	3 Months Ended
	Mar. 31, 2016
Loans and Leases Receivable, Allowance [Abstract]
Summary of Activity in Loan Loss Allowance	The activity in the credit loss allowance for individually acquired loans for the three months ended March 31, 2016 and 2015 was as follows: Three Months Ended March 31, 2016 Three Months Ended March 31, 2015 Retail Installment Receivables Retail Installment Receivables Personal Loans (As Restated - Note 1) Balance — beginning of period $ 3,296,023 $ 916 $ 2,669,830 $ 674 $ 348,660 Provision for credit losses 709,530 487 575,854 456 97,703 Charge-offs (1,192,610 ) — (926,993 ) — (99,690 ) Recoveries 610,315 — 543,336 — 6,205 Transfers to held-for-sale — — (27,117 ) — — Balance — end of period $ 3,423,258 $ 1,403 $ 2,834,910 $ 1,130 $ 352,878 The activity in the lease loss allowance for capital leases for the three months ended March 31, 2016 and 2015 was as follows: Three Months Ended 2016 2015 Balance — beginning of period $ 19,878 $ 9,589 Provision for lease losses (1,547 ) 5,776 Charge-offs (12,359 ) (1,997 ) Recoveries 9,888 1,814 Balance — end of period $ 15,860 $ 15,182
Summary of Impairment Activity Related to Purchased Receivables Portfolios	The impairment activity related to purchased receivables portfolios for the three months ended March 31, 2016 and 2015 was as follows: Three Months Ended 2016 2015 Balance — beginning of period $ 174,821 $ 188,639 Incremental provisions for purchased receivables portfolios 1,319 300 Incremental reversal of provisions for purchased receivables portfolios (3,215 ) (5,402 ) Balance — end of period $ 172,925 $ 183,537
Summary of Delinquencies	A summary of delinquencies as of March 31, 2016 and December 31, 2015 is as follows: March 31, 2016 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 31-60 days past due $ 1,900,922 $ 20,131 $ 1,921,053 Delinquent principal over 60 days 852,863 11,570 864,433 Total delinquent principal $ 2,753,785 $ 31,701 $ 2,785,486 December 31, 2015 Retail Installment Contracts Held for Investment Loans Acquired Individually Purchased Receivables Portfolios Total Principal, 31-60 days past due $ 2,454,986 $ 30,442 $ 2,485,428 Delinquent principal over 60 days 1,191,567 17,297 1,208,864 Total delinquent principal $ 3,646,553 $ 47,739 $ 3,694,292
Summary of Credit Risk Profile	A summary of the credit risk profile of the Company’s retail installment contract held for investment by FICO ® distribution, determined at origination, as of March 31, 2016 and December 31, 2015 was as follows: FICO ® Band March 31, 2016 December 31, 2015 Commercial (a) 4.2% 4.0% No-FICOs 12.6% 12.2% <540 23.2% 23.4% 540-599 31.0% 30.9% 600-639 17.1% 17.3% >640 11.9% 12.2% (a) No FICO score is obtained on loans to commercial borrowers
Summary Commercial Loan Credit Quality Indicators for Receivables from Dealers Held for Investment	Commercial loan credit quality indicators for receivables from dealers held for investment as of March 31, 2016 and December 31, 2015 were as follows: March 31, December 31, Pass $ 67,644 $ 68,873 Special Mention 2,406 8,068 Substandard 5,965 — Doubtful — — Loss — — Unpaid principal balance $ 76,015 $ 76,941
Summary of TDRs	The table below presents the Company’s TDRs as of March 31, 2016 and December 31, 2015 : March 31, December 31, 2015 Retail Installment Contracts Outstanding recorded investment $ 4,803,486 $ 4,667,380 Impairment (1,374,510 ) (1,356,092 ) Outstanding recorded investment, net of impairment $ 3,428,976 $ 3,311,288
Summary of Delinquent TDRs	A summary of the Company’s delinquent TDRs at March 31, 2016 and December 31, 2015 , is as follows: March 31, December 31, 2015 Retail Installment Contracts Principal, 31-60 days past due $ 793,139 $ 942,021 Delinquent principal over 60 days 367,413 510,015 Total delinquent TDR principal $ 1,160,552 $ 1,452,036
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, 2016 March 31, 2015 Retail Installment Contracts Retail Installment Contracts Personal Loans (As Restated - Note 1) Average outstanding recorded investment in TDRs $ 4,735,433 $ 4,283,186 $ 10,387 Interest income recognized $ 174,191 $ 181,410 $ 589
Summary of Financial Effects of TDRs	The following table summarizes the financial effects of TDRs that occurred during the three months ended March 31, 2016 and 2015 : Three Months Ended March 31, 2016 March 31, 2015 Retail Installment Contracts Retail Installment Contracts Personal Loans (As Restated - Note 1) Outstanding recorded investment before TDR $ 703,948 $ 848,367 $ 5,394 Outstanding recorded investment after TDR $ 711,225 $ 857,245 $ 5,356 Number of contracts (not in thousands) 39,380 48,892 4,468
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, 2016 and 2015 are summarized in the following table: Three Months Ended March 31, 2016 March 31, 2015 Retail Installment Contracts Retail Installment Contracts Personal Loans (As Restated - Note 1) Recorded investment in TDRs that subsequently defaulted $ 204,040 $ 185,192 $ 1,411 Number of contracts (not in thousands) 11,402 10,741 1,411

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2016
Debt Disclosure [Abstract]
Schedule of Credit Facilities	The following table presents information regarding credit facilities as of March 31, 2016 and December 31, 2015 : March 31, 2016 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Warehouse line June 2016 $ 328,484 $ 500,000 1.53% $ 470,935 $ — Warehouse line (a) Various (a) 898,785 1,250,000 1.65% 1,268,593 33,876 Warehouse line (b) July 2017 1,136,620 1,260,000 1.26% 1,327,405 39,890 Warehouse line (c) July 2017 2,151,543 2,940,000 1.37% 3,301,792 59,169 Warehouse line December 2017 1,342,277 1,800,000 1.59% 1,903,553 45,797 Repurchase facility (d) December 2016 1,147,361 1,147,361 2.51% — 44,767 Warehouse line March 2018 886,199 1,000,000 1.26% 1,287,618 28,733 Warehouse line (e) November 2016 175,000 175,000 1.99% — — Warehouse line (e) November 2016 250,000 250,000 1.99% — 2,502 Warehouse line January 2018 73,000 400,000 3.13% 102,309 — Total facilities with third parties 8,389,269 10,722,361 9,662,205 254,734 Lines of credit with Santander and related subsidiaries (f): Line of credit December 2016 500,000 500,000 2.74% — — Line of credit December 2018 — 500,000 3.49% — — Line of credit December 2016 1,000,000 1,000,000 2.70% — — Line of credit December 2018 975,000 1,000,000 2.94% — — Line of credit March 2017 300,000 300,000 1.99% — — Line of credit March 2019 — 1,500,000 4.44% — — Total facilities with Santander and related subsidiaries 2,775,000 4,800,000 — — Total revolving credit facilities $ 11,164,269 $ 15,522,361 $ 9,662,205 $ 254,734 (a) Half of the outstanding balance on this facility matures in March 2017 and half matures in March 2018. (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) The repurchase facility is collateralized by securitization notes payable retained by the Company. This facility has rolling maturities of up to 180 days. On April 14, 2016, the Company entered into a second repurchase facility, advancing $237,000 . (e) These lines are collateralized by residuals retained by the Company. (f) These lines generally are also collateralized by securitization notes payable and residuals retained by the Company. As of March 31, 2016 and December 31, 2015 , $1,591,882 and $1,420,584 , respectively, of the aggregate outstanding balances on these facilities were unsecured. December 31, 2015 Maturity Date(s) Utilized Balance Committed Amount Effective Rate Assets Pledged Restricted Cash Pledged Warehouse line June 2016 $ 378,301 $ 500,000 1.48% $ 535,737 $ — Warehouse line Various 808,135 1,250,000 1.29% 1,137,257 24,942 Warehouse line July 2017 682,720 1,260,000 1.35% 809,185 20,852 Warehouse line July 2017 2,247,443 2,940,000 1.41% 3,412,321 48,589 Warehouse line December 2017 944,877 2,000,000 1.56% 1,345,051 32,038 Repurchase facility December 2016 850,904 850,904 2.07% — 34,166 Warehouse line September 2017 565,399 1,000,000 1.20% 824,327 15,759 Warehouse line November 2016 175,000 175,000 1.90% — — Warehouse line November 2016 250,000 250,000 1.90% — 2,501 Total facilities with third parties 6,902,779 10,225,904 8,063,878 178,847 Lines of credit with Santander and related subsidiaries: Line of credit December 2016 500,000 500,000 2.65% — — Line of credit December 2018 — 500,000 3.48% — — Line of credit December 2016 1,000,000 1,750,000 2.61% — — Line of credit December 2018 800,000 1,750,000 2.84% — — Line of credit March 2017 300,000 300,000 1.88% — — Total facilities with Santander and related subsidiaries 2,600,000 4,800,000 — — Total revolving credit facilities $ 9,502,779 $ 15,025,904 $ 8,063,878 $ 178,847
Summary of Secured Structured Financings	The following table presents information regarding secured structured financings as of March 31, 2016 and December 31, 2015 : March 31, 2016 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 364,210 2,525,540 0.92%-1.23% 500,444 85,090 2013 Securitizations January 2019 - January 2021 1,718,547 6,689,700 0.89%-1.59% 2,251,347 269,731 2014 Securitizations February 2020 - January 2021 2,569,061 6,391,020 1.16%-1.72% 3,435,615 320,444 2015 Securitizations September 2019 - January 2023 6,340,242 9,317,032 1.33%-2.29% 8,223,569 613,124 2016 Securitizations April 2022 - May 2023 1,558,668 1,639,790 1.94%-2.44% 2,041,205 107,886 Securitizations (a) 12,550,728 26,563,082 16,452,180 1,396,275 2010 Private issuances (b) June 2011 162,149 516,000 1.29% 260,960 7,794 2011 Private issuances December 2018 552,070 1,700,000 1.46% 987,640 51,728 2013 Private issuances September 2018-September 2020 2,919,009 2,693,754 1.13%-1.38% 4,597,426 171,712 2014 Private issuances March 2018 - December 2021 1,282,460 3,271,175 1.05%-1.40% 1,871,997 114,993 2015 Private issuances December 2016 - July 2019 2,392,487 2,855,062 0.88%-2.81% 2,660,644 141,190 2016 Private issuances May 2020 482,056 500,000 1.55% 650,578 11,419 Privately issued amortizing notes 7,790,231 11,535,991 11,029,245 498,836 Total secured structured financings $ 20,340,959 $ 38,099,073 $ 27,481,425 $ 1,895,111 (a) Securitizations executed under Rule 144A of the Securities Act are included within this balance. (b) This securitization was most recently amended in May 2015 to extend the maturity date to May 2016. December 31, 2015 Original Estimated Maturity Date(s) Balance Initial Note Amounts Issued Initial Weighted Average Interest Rate Collateral Restricted Cash 2012 Securitizations September 2018 $ 433,771 $ 2,525,540 0.92%-1.23% $ 580,581 $ 84,231 2013 Securitizations January 2019 - January 2021 2,000,915 6,689,700 0.89%-1.59% 2,577,552 267,623 2014 Securitizations February 2020 - January 2021 2,956,273 6,391,020 1.16%-1.72% 3,894,365 313,356 2015 Securitizations September 2019 - January 2023 7,269,037 9,317,032 1.33%-2.29% 9,203,569 577,647 Securitizations 12,659,996 24,923,292 16,256,067 1,242,857 2010 Private issuances June 2011 108,201 516,000 1.29% 240,026 6,855 2011 Private issuances December 2018 708,884 1,700,000 1.46% 1,142,853 50,432 2013 Private issuances September 2018-September 2020 2,836,420 2,693,754 1.13%-1.38% 4,311,481 143,450 2014 Private issuances March 2018 - December 2021 1,541,970 3,271,175 1.05%-1.40% 2,192,495 95,325 2015 Private issuances November 2016 - May 2020 3,017,429 3,548,242 0.88%-2.81% 3,608,497 161,778 Privately issued amortizing notes 8,212,904 11,729,171 11,495,352 457,840 Total secured structured financings $ 20,872,900 $ 36,652,463 $ 27,751,419 $ 1,700,697

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2016
Variable Interest Entity Disclosure [Abstract]
Summary of Assets and Liabilities Related to VIEs	The following table summarizes the assets and liabilities related to VIEs included in the Company’s condensed consolidated financial statements: March 31, December 31, Restricted cash $ 1,982,611 $ 1,842,877 Finance receivables held for sale 1,271,856 1,539,686 Finance receivables held for investment, net 22,897,337 22,891,064 Leased vehicles, net 7,298,521 6,516,030 Various other assets 581,758 620,482 Notes payable 30,500,847 30,611,019 Various other liabilities 7,654 5,379
Summary of Cash Flows Received from Consolidated Securitization Trusts	A summary of the cash flows received from consolidated securitization trusts during the three months ended March 31, 2016 and 2015 , is as follows: Three Months Ended March 31, 2016 March 31, 2015 Assets securitized $ 3,621,496 $ 3,981,855 Net proceeds from new securitizations (a) $ 2,633,626 $ 3,060,862 Cash received for servicing fees (b) 194,365 159,802 Net distributions from Trusts (b) 431,591 300,487 Total cash received from Trusts $ 3,259,582 $ 3,521,151 (a) Includes additional advances on existing securitizations. (b) These amounts are not reflected in the accompanying condensed consolidated statements of cash flows because the cash flows are intra-company and eliminated in consolidation. A summary of the cash flows received from off-balance sheet securitization trusts during the three months ended March 31, 2016 and 2015 is as follows: Three Months Ended March 31, 2016 March 31, 2015 Receivables securitized $ — $ — Net proceeds from new securitizations $ — $ — Cash received for servicing fees 15,701 5,304 Total cash received from securitization trusts $ 15,701 $ 5,304

Derivative Financial Instrume31

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
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 agreements at March 31, 2016 and December 31, 2015 , were as follows: March 31, 2016 December 31, 2015 Notional Fair Value Notional Fair Value Interest rate swap agreements designated as cash flow hedges $ 10,152,000 $ (59,008 ) $ 9,150,000 $ 1,706 Interest rate swap agreements not designated as hedges 1,984,000 (6,580 ) 2,399,000 (1,306 ) Interest rate cap agreements 9,159,361 13,716 10,013,912 32,951 Options for interest rate cap agreements 9,159,361 (13,785 ) 10,013,912 (32,977 )
Schedule of Offsetting Financial Assets	Offsetting of Financial Assets Gross Amounts Not Offset in the Gross Gross Amounts Net Amounts of Assets Presented Financial Cash Net March 31, 2016 Interest rate swaps - Santander & affiliates $ 189 $ — $ 189 $ — $ — $ 189 Interest rate swaps - third party — — — — — — Interest rate caps - Santander & affiliates 4,908 — 4,908 — — 4,908 Interest rate caps - third party 8,809 — 8,809 — — 8,809 Total derivatives subject to a master netting arrangement or similar arrangement 13,906 — 13,906 — — 13,906 Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative assets $ 13,906 $ — $ 13,906 $ — $ — $ 13,906 Total financial assets $ 13,906 $ — $ 13,906 $ — $ — $ 13,906 December 31, 2015 Interest rate swaps - Santander & affiliates $ 4,607 $ — $ 4,607 $ — $ — $ 4,607 Interest rate swaps - third party 3,863 — 3,863 — — 3,863 Interest rate caps - Santander & affiliates 12,724 — 12,724 — — 12,724 Interest rate caps - third party 20,227 — 20,227 — — 20,227 Total derivatives subject to a master netting arrangement or similar arrangement 41,421 — 41,421 — — 41,421 Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative assets $ 41,421 $ — $ 41,421 $ — $ — $ 41,421 Total financial assets $ 41,421 $ — $ 41,421 $ — $ — $ 41,421
Schedule of Offsetting Financial Liabilities	Offsetting of Financial Liabilities Gross Amounts Not Offset in the Gross Gross Amounts Net Amounts of Liabilities Presented Financial Cash Net March 31, 2016 Interest rate swaps - Santander & affiliates $ 18,179 $ — $ 18,179 $ — $ (17,336 ) $ 843 Interest rate swaps - third party 47,599 — 47,599 — (47,599 ) — Back to back - Santander & affiliates 4,908 — 4,908 — (4,908 ) — Back to back - third party 8,877 — 8,877 — (8,877 ) — Total derivatives subject to a master netting arrangement or similar arrangement 79,563 — 79,563 — (78,720 ) 843 Total return swap — — — — — — Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative liabilities $ 79,563 $ — $ 79,563 $ — $ (78,720 ) $ 843 Total financial liabilities $ 79,563 $ — $ 79,563 $ — $ (78,720 ) $ 843 December 31, 2015 Interest rate swaps - Santander & affiliates $ 4,977 $ (3,430 ) $ 1,547 $ — $ — $ 1,547 Interest rate swaps - third party 3,093 (3,093 ) — — — — Back to back - Santander & affiliates 12,724 (12,270 ) 454 — — 454 Back to back - third party 20,253 (20,253 ) — — — — Total derivatives subject to a master netting arrangement or similar arrangement 41,047 (39,046 ) 2,001 — — 2,001 Total return swap — — — — — — Total derivatives not subject to a master netting arrangement or similar arrangement — — — — — — Total derivative liabilities $ 41,047 $ (39,046 ) $ 2,001 $ — $ — $ 2,001 Total financial liabilities $ 41,047 $ (39,046 ) $ 2,001 $ — $ — $ 2,001 (a) Cash collateral pledged is reported in Other assets and Due from affiliate 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, 2016 and 2015 were as follows: Three Months Ended Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Income to Interest Expense Interest rate swap agreements designated as cash flow hedges $ 208 $ (73,005 ) $ (12,082 ) Derivative instruments not designated as hedges $ (5,499 ) Three Months Ended Recognized in Earnings Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss) Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Income to Interest Expense Interest rate swap agreements designated as cash flow hedges $ 223 $ (31,536 ) $ (11,071 ) Derivative instruments not designated as hedges $ (2,429 )

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2016
Other Assets [Abstract]
Schedule of Other Assets	Other assets were comprised as follows: March 31, December 31, Upfront fee (a) $ 106,251 $ 110,000 Vehicles (b) 251,780 203,906 Manufacturer subvention payments receivable (a) 146,735 132,856 Accounts receivable 24,132 27,028 Prepaids 44,332 33,183 Derivative assets (Note 7) 65,285 24,090 Other 17,934 18,581 Total other assets $ 656,449 $ 549,644 (a) 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. (b) Includes vehicles obtained through repossession as well as vehicles obtained due to lease terminations.

Related-Party Transactions (Tab

Related-Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2016
Related Party Transaction [Line Items]
Schedule of Related Party Transactions	Interest expense, including unused fees, for affiliate lines/letters of credit for the three months ended March 31, 2016 and 2015 , was as follows: Three Months Ended March 31, 2016 March 31, 2015 Line of credit agreement with Santander - New York Branch (Note 5) $ 20,273 $ 25,484 Line of credit agreement with SHUSA (Note 5) 2,864 1,290 Accrued interest for affiliate lines/letters of credit at March 31, 2016 and December 31, 2015 , was as follows: March 31, December 31, 2015 Line of credit agreement with Santander - New York Branch (Note 5) $ 5,997 $ 6,015 Line of credit agreement with SHUSA (Note 5) 1,450 267
Serviced Auto Loan and Retail Installment
Related Party Transaction [Line Items]
Schedule of Related Party Transactions	Other information on the serviced auto loan and retail installment contract portfolios for SBNA as of March 31, 2016 and December 31, 2015 is as follows: March 31, December 31, Total serviced portfolio $ 653,186 $ 692,291 Cash collections due to owner 24,234 19,302 Servicing fees receivable 2,244 1,476
Consumer Vehicle Lease
Related Party Transaction [Line Items]
Schedule of Related Party Transactions	Other information on the consumer vehicle lease portfolio serviced for SBNA as of March 31, 2016 and December 31, 2015 is as follows: March 31, December 31, Total serviced portfolio $ 1,964,315 $ 2,198,519 Cash collections due to owner 1,317 132 Servicing fees receivable 821 784 Revenue share reimbursement receivable 2,514 1,370

Computation of Basic and Dilu34

Computation of Basic and Diluted Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2016
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, 2016 and 2015 : Three Months Ended 2016 2015 Earnings per common share (As Restated - Note 1) Net income $ 200,693 $ 246,282 Weighted average number of common shares outstanding before restricted participating shares (in thousands) 357,625 348,955 Weighted average number of participating restricted common shares outstanding (in thousands) 350 467 Weighted average number of common shares outstanding (in thousands) 357,975 349,422 Earnings per common share $ 0.56 $ 0.70 Earnings per common share - assuming dilution Net income $ 200,693 $ 246,282 Weighted average number of common shares outstanding (in thousands) 357,975 349,422 Effect of employee stock-based awards (in thousands) 2,253 7,232 Weighted average number of common shares outstanding - assuming dilution (in thousands) 360,228 356,654 Earnings per common share - assuming dilution $ 0.56 $ 0.69

Fair Value of Financial Instr35

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Summary of Fair Value Estimates, Methods and Assumptions	Fair value estimates, methods, and assumptions are as follows: March 31, 2016 December 31, 2015 Level Carrying Estimated Carrying Estimated Cash and cash equivalents (a) 1 $ 42,047 $ 42,047 $ 18,893 $ 18,893 Finance receivables held for sale, net (b) 3 2,324,190 2,334,887 2,868,603 2,889,043 Finance receivables held for investment, net (c) 3 24,082,180 25,715,311 23,479,680 24,960,092 Restricted cash (a) 1 2,636,216 2,636,216 2,236,329 2,236,329 Notes payable — credit facilities (d) 3 8,389,269 8,389,269 6,902,779 6,902,779 Notes payable — secured structured financings (e) 2 20,340,959 20,406,382 20,872,900 20,917,733 Notes payable — related party (f) 3 2,775,000 2,775,000 2,600,000 2,600,000 (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 sale, net — Finance receivables held for sale, net are comprised of retail installment contracts acquired individually and personal loans and are carried at the lower of cost or market, as determined on an aggregate basis for each type of receivable. • Retail installment contracts acquired individually — The estimated fair value is based on prices obtained in recent market transactions or expected to be obtained in the subsequent sales for similar assets. • Personal loans — 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 discounted cash flow (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. (c) 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 and capital lease receivables are carried at amortized cost, net of credit loss allowance and gross investments, net of unearned income and allowance for lease losses, respectively. Management believes that the terms of these credit agreements approximate market terms for similar credit agreements. (d) 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. (e) Notes payable — secured structured financings — The estimated fair value of notes payable related to secured structured financings is calculated based on market quotes for the Company’s publicly traded debt and estimated market rates currently available from recent transactions involving similar debt with similar credit risks. (f) 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 table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis at March 31, 2016 and December 31, 2015 , and are categorized using the fair value hierarchy: Fair Value Measurements at March 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) $ 8,809 $ — $ 8,809 $ — Due from affiliates — trading interest rate caps (a) 4,908 — 4,908 — Due from affiliates — cash flow hedging interest rate swaps (a) 189 — 189 — Other liabilities — trading options for interest rate caps (a) 8,877 — 8,877 — Due to affiliates — trading options for interest rate caps (a) 4,908 — 4,908 — Other liabilities — cash flow hedging interest rate swaps (a) 44,481 — 44,481 — Due to affiliates — cash flow hedging interest rate swaps (a) 14,717 — 14,717 — Other liabilities — trading interest rate swaps (a) 3,118 — 3,118 — Due to affiliates — trading interest rate swaps (a) 3,462 — 3,462 — Retail installment contracts acquired individually (b) 4,139 — — 4,139 Fair Value Measurements at December 31, 2015 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) $ 20,227 $ — $ 20,227 $ — Due from affiliates — trading interest rate caps (a) 12,724 — 12,724 — Other assets — cash flow hedging interest rate swaps (a) 3,863 — 3,863 — Due from affiliates — cash flow hedging interest rate swaps (a) 3,431 — 3,431 — Due from affiliates — trading interest rate swaps (a) 1,176 — 1,176 — Other liabilities — trading options for interest rate caps (a) 20,253 — 20,253 — Due to affiliates — trading options for interest rate caps (a) 12,724 — 12,724 — Other liabilities — cash flow hedging interest rate swaps (a) 3,093 — 3,093 — Due to affiliates — cash flow hedging interest rate swaps (a) 2,496 — 2,496 — Due to affiliates — trading interest rate swaps (a) 2,481 — 2,481 — Retail installment contracts acquired individually (b) 6,770 — — 6,770 (a) The valuation of swaps and caps 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) 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 Level 3 Balances	The table below presents the changes in all Level 3 balances for the three months ended March 31, 2016 : Retail Installment Contracts Held for Investment Fair value, December 31, 2015 $ 6,770 Gains/(losses) in earnings (2,631 ) Fair value, March 31, 2016 $ 4,139
Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	The following table presents the Company’s assets and liabilities that are measured at fair value on a nonrecurring basis at March 31, 2016 and December 31, 2015 , and are categorized using the fair value hierarchy: Fair Value Measurements at March 31, 2016 Total Quoted Prices Significant Significant Lower of cost or fair value expense (benefit) (d) Other assets — vehicles (a) $ 251,780 $ — $ 251,780 $ — $ — Personal loans held for sale (b) 978,819 — — 978,819 68,338 Intangible assets not subject to amortization-trademark (c) 33,915 — — 33,915 20,300 Fair Value Measurements at December 31, 2015 Total Quoted Prices Significant Significant Lower of cost or fair value expense (benefit) (d) Other assets — vehicles (a) $ 203,906 $ — $ 203,906 $ — $ — Personal loans held for sale (b) $ 1,962,893 $ — $ — $ 1,962,893 $ 609,869 (a) Represents vehicles in repossession or lease termination status at period-end, which have been charged off against credit loss allowance at fair value. 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 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. (c) Represents the intangibles not subject to amortization for which the Company has recorded an impairment of $20,300 during the three months ended March 31, 2016. The estimated fair value for the trademark is calculated based on a DCF analysis in which the Company uses significant unobservable inputs on key assumptions, including originations growth, discount rate and royalty rate. (d) 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.

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2016
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, 2016 is as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value Options outstanding at January 1, 2016 12,522,706 $ 11.84 6.4 $ 50,163 Granted 48,000 13.77 — — Exercised (104,535 ) 9.21 — 209 Expired (433,642 ) 10.45 — — Forfeited (242,115 ) 14.91 — — Options outstanding at March 31, 2016 11,790,414 11.86 6.1 (16,200 ) Options exercisable at March 31, 2016 9,196,637 11.31 6.0 (7,517 )

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2016
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, 2016 and 2015 is as follows: Three Months Ended March 31, 2016 March 31, 2015 Beginning balance, unrealized gains (losses) on cash flow hedges $ 2,125 $ 3,553 Other comprehensive loss before reclassifications (45,762 ) (19,791 ) Amounts reclassified out of accumulated other comprehensive income (loss) (a) 7,572 6,948 Ending balance, unrealized losses on cash flow hedges $ (36,065 ) $ (9,290 ) (a) Amounts reclassified out of accumulated other comprehensive income (loss) during the three months ended March 31, 2016 and 2015 consist of the following: Three Months Ended March 31, 2016 Three Months Ended March 31, 2015 Reclassification Amount reclassified Income statement line item Amount reclassified Income statement line item Cash flow hedges: Settlements of derivatives $ 12,082 Interest expense $ 11,071 Interest expense Tax benefit (4,510 ) (4,123 ) Net of tax $ 7,572 $ 6,948
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, 2016 and 2015 consist of the following: Three Months Ended March 31, 2016 Three Months Ended March 31, 2015 Reclassification Amount reclassified Income statement line item Amount reclassified Income statement line item Cash flow hedges: Settlements of derivatives $ 12,082 Interest expense $ 11,071 Interest expense Tax benefit (4,510 ) (4,123 ) Net of tax $ 7,572 $ 6,948

Investment Gains (Losses), Net

Investment Gains (Losses), Net (Tables)	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule of Investment Gains (Losses), Net	Investment gains (losses), net was comprised of the following for the three months ended March 31, 2016 and 2015 : Three Months Ended March 31, 2016 March 31, 2015 Gain on sale of loans and leases $ 1,638 $ 21,247 Lower of cost or market adjustments (68,338 ) — Other gains, losses and impairments, net (6,451 ) — $ (73,151 ) $ 21,247

Description of Business, Basi39

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)segment	Mar. 31, 2015USD ($)
Basis Of Presentation And Significant Accounting Policies [Line Items]
Income tax expense	$ (116,129)	$ (115,688)	[1]
Net income	$ (200,693)	(246,282)
Number of reportable segments | segment	1
SHUSA
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership percentage held in the Company	58.90%
Public Shareholders
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership percentage held in the Company	31.20%
DDFS LLC
Basis Of Presentation And Significant Accounting Policies [Line Items]
Ownership percentage held in the Company	9.80%
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
Corrections
Basis Of Presentation And Significant Accounting Policies [Line Items]
Income tax expense		25,738
Net income		42,968
Understated | Corrections
Basis Of Presentation And Significant Accounting Policies [Line Items]
Provision for credit loss allowance		68,706
Overstated | Corrections
Basis Of Presentation And Significant Accounting Policies [Line Items]
Income tax expense		25,738
Net income		$ 42,968
[1]	As Restated - Note 1

Description of Business, Basi40

Description of Business, Basis of Presentation, and Significant Accounting Policies and Practices - Error Corrections (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)contract$ / shares	Mar. 31, 2015USD ($)contract$ / shares		Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Leased vehicle income	$ 329,792	$ 231,616	[1]
Total finance and other interest income	1,675,467	1,468,959	[1]
Leased vehicle expense	218,779	171,734	[1]
Provision for credit losses	706,574	674,687	[1]
Net finance and other interest income after provision for credit losses	565,379	473,682	[1]
Net finance and other interest income after provision for credit losses and profit sharing	553,985	460,166	[1]
Income before income taxes	316,822	361,970	[1]
Income tax expense	116,129	115,688	[1]
Net income	200,693	246,282	[1]
Comprehensive income	$ 162,503	$ 233,439	[1]
Net income per common share (basic) (in usd per share) | $ / shares	$ 0.56	$ 0.70	[1]
Net income per common share (diluted) (in usd per share) | $ / shares	$ 0.56	$ 0.69	[1]
Stockholders' equity	$ 4,589,547	$ 3,842,836	[1]	$ 4,424,963	$ 3,593,672	[1]
Depreciation and amortization	265,077	196,191	[1]
Accretion of discount	(151,045)	(132,725)	[1]
Deferred tax expense (benefit)	$ 107,540	$ (1,275)	[1]
Effective tax rate	36.70%	32.00%
Net income attributable to SC shareholders	$ 200,693	$ 246,282
Retail Installment Contracts Acquired Individually
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Allowance for credit losses	3,423,258	2,834,910		3,296,023	2,669,830
Provision for credit losses	709,530	575,854
Retail Installment Contracts
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Average outstanding recorded investment in TDRs	4,735,433	4,283,186
Interest income recognized	174,191	181,410
Outstanding recorded investment before TDR	703,948	848,367
Outstanding recorded investment after TDR	$ 711,225	$ 857,245
Number of contracts (not in thousands) | contract	39,380	48,892
Recorded investment in TDRs that subsequently defaulted	$ 204,040	$ 185,192
Number of contracts (not in thousands) | contract	11,402	10,741
Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	$ 200,693	$ 246,282	[1]
Stockholders' equity	$ 3,054,096	2,272,392	[1]	$ 2,853,403	2,026,110	[1]
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Leased vehicle income		332,946
Total finance and other interest income		1,570,289
Leased vehicle expense		273,064
Provision for credit losses		605,981
Net finance and other interest income after provision for credit losses		542,388
Net finance and other interest income after provision for credit losses and profit sharing		528,872
Income before income taxes		430,676
Income tax expense		141,426
Net income		289,250
Comprehensive income		$ 276,407
Net income per common share (basic) (in usd per share) | $ / shares		$ 0.83
Net income per common share (diluted) (in usd per share) | $ / shares		$ 0.81
Stockholders' equity		$ 3,850,481			3,558,349
Depreciation and amortization		297,521
Accretion of discount		(234,055)
Deferred tax expense (benefit)		$ 24,463
Effective tax rate		32.80%
Net income attributable to SC shareholders		$ 289,250
As Reported | Retail Installment Contracts Acquired Individually
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Allowance for credit losses		2,822,712			2,726,338
Provision for credit losses		507,148
As Reported | Retail Installment Contracts
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Average outstanding recorded investment in TDRs		3,573,868
Interest income recognized		196,976
Outstanding recorded investment before TDR		875,809
Outstanding recorded investment after TDR		$ 874,371
Number of contracts (not in thousands) | contract		52,319
Recorded investment in TDRs that subsequently defaulted		$ 158,518
Number of contracts (not in thousands) | contract		11,654
As Reported | Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		$ 289,250
Stockholders' equity		2,280,037			1,990,787
Corrections
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Leased vehicle income		(101,330)
Total finance and other interest income		(101,330)
Leased vehicle expense		(101,330)
Provision for credit losses		68,706
Net finance and other interest income after provision for credit losses		(68,706)
Net finance and other interest income after provision for credit losses and profit sharing		(68,706)
Income before income taxes		(68,706)
Income tax expense		(25,738)
Net income		(42,968)
Comprehensive income		$ (42,968)
Net income per common share (basic) (in usd per share) | $ / shares		$ (0.13)
Net income per common share (diluted) (in usd per share) | $ / shares		$ (0.12)
Stockholders' equity		$ (7,645)			35,323
Depreciation and amortization		(101,330)
Accretion of discount		101,330
Deferred tax expense (benefit)		$ (25,738)
Effective tax rate		(0.80%)
Net income attributable to SC shareholders		$ (42,968)
Corrections | Retail Installment Contracts Acquired Individually
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Allowance for credit losses		12,198			(56,508)
Provision for credit losses		68,706
Corrections | Retail Installment Contracts
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Average outstanding recorded investment in TDRs		709,318
Interest income recognized		(15,566)
Outstanding recorded investment before TDR		(27,442)
Outstanding recorded investment after TDR		$ (17,126)
Number of contracts (not in thousands) | contract		(3,427)
Recorded investment in TDRs that subsequently defaulted		$ 26,674
Number of contracts (not in thousands) | contract		(913)
Corrections | Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		$ (42,968)
Stockholders' equity		$ (7,645)			$ 35,323
[1]	As Restated - Note 1

Finance Receivables - Additiona

Finance Receivables - Additional Information (Details) - USD ($)	Feb. 01, 2016	Mar. 31, 2016	Dec. 31, 2015
Schedule Of Financing Receivables [Line Items]
Notes payable — credit facilities		$ 8,389,269,000	$ 6,902,779,000
Accrued interest receivable		$ 369,656,000	405,464,000
Texas
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)		17.00%
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)		10.00%
Percentage of remaining receivable from dealers held for investment		23.00%
Georgia
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)		5.00%
Other States (less than 5%)
Schedule Of Financing Receivables [Line Items]
Retail installment contracts held for investment (as a percent)		5.00%
Percentage of remaining receivable from dealers held for investment		5.00%
Virginia
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment		38.00%
New York
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment		20.00%
Missouri
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment		9.00%
Mississippi
Schedule Of Financing Receivables [Line Items]
Percentage of remaining receivable from dealers held for investment		7.00%
Fleet Contracts
Schedule Of Financing Receivables [Line Items]
Unpaid principal balance of fleet contracts with commercial consumers		$ 1,165,062,000	1,087,024,000
Receivables from Dealers Held for Investment
Schedule Of Financing Receivables [Line Items]
Committed amount		50,000,000	50,000,000
Notes payable — credit facilities		50,000,000	50,000,000
Accrued interest receivable		158,000	156,000
Unpaid principal balance | Personal Loans | Consumer Portfolio Segment
Schedule Of Financing Receivables [Line Items]
Sale of finance receivable	$ 869,349,000
Nonperforming Financial Instruments | Personal Loans | Consumer Portfolio Segment
Schedule Of Financing Receivables [Line Items]
Financing receivable, net		$ 1,337,000	$ 941,000

Finance Receivables - Summary o

Finance Receivables - Summary of Financing Receivables Held for Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Capital lease receivables	$ 37,710	$ 47,206
Finance receivables held for investment, net	24,082,180	23,479,680
Purchased receivables portfolios acquired with deteriorated credit quality:
Unpaid principal balance	314,847	359,822
Outstanding recorded investment	388,269	419,183
Less: Impairment	(172,925)	(174,821)
Outstanding recorded investment, net of impairment	215,344	244,362
Retail Installment Contracts Acquired Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	23,753,177	23,111,146
Receivables from Dealers Held for Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	74,612	76,025
Personal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	1,337	941
Unpaid principal balance | Retail Installment Contracts Acquired Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	27,588,943	26,863,946
Unpaid principal balance | Receivables from Dealers Held for Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	76,015	76,941
Credit loss allowance | Retail Installment Contracts Acquired Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	(3,423,258)	(3,296,023)
Credit loss allowance | Receivables from Dealers Held for Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	(1,403)	(916)
Credit loss allowance | Personal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	0	0
Capitalized origination costs and fees | Retail Installment Contracts Acquired Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	42,963	45,565
Capitalized origination costs and fees | Receivables from Dealers Held for Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	0	0
Capitalized origination costs and fees | Personal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	0	0
Discount | Retail Installment Contracts Acquired Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	(455,471)	(502,342)
Discount | Receivables from Dealers Held for Investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	0	0
Discount | Personal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail installment contracts and loans held for investment	$ 0	$ 0

Finance Receivables - Schedule

Finance Receivables - Schedule of Carrying Values of Finance Receivables Held for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables held for sale, carrying value	$ 2,324,190	$ 2,868,603
Retail installment contracts acquired individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables held for sale, carrying value	1,345,371	905,710
Personal loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables held for sale, carrying value	$ 978,819	$ 1,962,893

Finance Receivables - Schedul44

Finance Receivables - Schedule of Sales of Retail Installment Contracts and Charged-off Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Receivables [Abstract]
Sales of retail installment contracts to third parties	$ 859,955	$ 919,078
Proceeds from sales of charged-off assets	$ 6,230	$ 38,376

Finance Receivables - Schedul45

Finance Receivables - Schedule of Servicing of Retail Installment Contracts (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Serviced balance of retail installment contracts and leases sold to third parties	$ 11,617,032	$ 12,155,844

Finance Receivables - Changes i

Finance Receivables - Changes in Accretable Yield on Purchased Receivables Portfolios (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance — beginning of period	$ 193,564	$ 264,416
Accretion of accretable yield	(21,329)	(26,905)
Reclassifications from (to) nonaccretable difference	(24,258)	6,144
Balance — end of period	$ 147,977	$ 243,655

Leases - Additional Information

Leases - Additional Information (Details) - FCA - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Capital Leased Assets [Line Items]
Aggregate depreciated net capitalized cost of leases sold	$ 0	$ 561,334,000
Net book value of leases sold	$ 0	$ 488,919,000

Leases - Summary of Leased Vehi

Leases - Summary of Leased Vehicles (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Leases [Abstract]
Leased vehicles	$ 10,004,043		$ 8,862,214
Less: accumulated depreciation	(1,736,884)		(1,517,198)
Depreciated net capitalized cost	8,267,159		7,345,016
Manufacturer subvention payments	(987,901)		(845,142)
Origination fees and other costs	19,263		16,156
Net book value	7,298,521		$ 6,516,030
Accretion of lease subvention payments	$ 151,871	$ 101,330

Leases - Future Minimum Rental

Leases - Future Minimum Rental Payments Due to Lessor under Operating Leases (Details) $ in Thousands	Mar. 31, 2016USD ($)
Leases [Abstract]
Remainder of 2016	$ 977,209
2,017	963,272
2,018	421,093
2,019	24,165
2,020	50
Thereafter	0
Total	$ 2,385,789

Leases - Summary of Capital Lea

Leases - Summary of Capital Lease Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Leases [Abstract]
Gross investment in capital leases	$ 70,781	$ 91,393
Origination fees and other	168	155
Less unearned income	(17,379)	(24,464)
Net investment in capital leases before allowance	53,570	67,084
Less: allowance for lease losses	(15,860)	(19,878)
Net investment in capital leases	$ 37,710	$ 47,206

Leases - Future Minimum Renta51

Leases - Future Minimum Rental Receivable under Capital Leases (Details) $ in Thousands	Mar. 31, 2016USD ($)
Leases [Abstract]
Remainder of 2016	$ 17,065
2,017	22,721
2,018	21,587
2,019	8,279
2,020	1,037
Thereafter	92
Total	$ 70,781

Credit Loss Allowance and Cre52

Credit Loss Allowance and Credit Quality - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number of days past due for determination of nonaccrual and accrual status	60 days
Retail Installment Contracts
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans classified as non-performing, period for classification	60 days
TDRs, number of days past due, considered subsequently defaulted	120 days
Receivables From Dealers
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	$ 1,403,000	$ 1,130,000	$ 916,000	$ 674,000
Financing receivable, net	76,015,000		76,941,000
Impairment to financing receivable	$ 0	0
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
Receivables From Dealers | Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing receivable, net	67,644,000		68,873,000
Receivables From Dealers | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing receivable, net	5,965,000		0
Receivables From Dealers | Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing receivable, net	2,406,000		8,068,000
Retail Installment Contracts Acquired Individually
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	3,423,258,000	2,834,910,000	3,296,023,000	$ 2,669,830,000
Impairment to financing receivable	$ 1,192,610,000	$ 926,993,000
TDRs, deferral period	90 days
Fleet Contracts
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance of fleet contracts with commercial consumers	$ 1,165,062,000		$ 1,087,024,000
Fleet Contracts | Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Fleet loans classified as Special Mention	$ 6,409,000
Personal Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
TDRs, number of days past due, considered subsequently defaulted	180 days
Unpaid principal balance | Receivables from Dealers Held for Investment
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses	$ 978,000
Unpaid principal balance | Receivables from Dealers Held for Investment | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing receivable, net	5,965,000
Impairment to financing receivable	$ 425,000

Credit Loss Allowance and Cre53

Credit Loss Allowance and Credit Quality - Summary of Activity in Loan Loss Allowance (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Retail Installment Contracts Acquired Individually
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	$ 3,296,023	$ 2,669,830
Provision for credit losses	709,530	575,854
Charge-offs	(1,192,610)	(926,993)
Recoveries	610,315	543,336
Transfers to held-for-sale	0	(27,117)
Balance — end of period	3,423,258	2,834,910
Receivables from Dealers Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	916	674
Provision for credit losses	487	456
Charge-offs	0	0
Recoveries	0	0
Transfers to held-for-sale	0	0
Balance — end of period	1,403	1,130
Personal Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period		348,660
Provision for credit losses		97,703
Charge-offs		(99,690)
Recoveries		6,205
Transfers to held-for-sale		0
Balance — end of period		352,878
Capital Lease Receivable
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	19,878	9,589
Provision for credit losses	(1,547)	5,776
Charge-offs	(12,359)	(1,997)
Recoveries	9,888	1,814
Balance — end of period	$ 15,860	$ 15,182

Credit Loss Allowance and Cre54

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, 2016	Mar. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Balance — beginning of period	$ 174,821	$ 188,639
Incremental provisions for purchased receivables portfolios	1,319	300
Incremental reversal of provisions for purchased receivables portfolios	(3,215)	(5,402)
Balance — end of period	$ 172,925	$ 183,537

Credit Loss Allowance and Cre55

Credit Loss Allowance and Credit Quality - Summary of Delinquencies (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable Recorded Investment Past Due [Line Items]
Principal, 31-60 days past due	$ 1,921,053	$ 2,485,428
Delinquent principal over 60 days	864,433	1,208,864
Total delinquent principal	2,785,486	3,694,292
Loans Acquired Individually
Financing Receivable Recorded Investment Past Due [Line Items]
Principal, 31-60 days past due	1,900,922	2,454,986
Delinquent principal over 60 days	852,863	1,191,567
Total delinquent principal	2,753,785	3,646,553
Purchased Receivables Portfolios
Financing Receivable Recorded Investment Past Due [Line Items]
Principal, 31-60 days past due	20,131	30,442
Delinquent principal over 60 days	11,570	17,297
Total delinquent principal	$ 31,701	$ 47,739

Credit Loss Allowance and Cre56

Credit Loss Allowance and Credit Quality - Summary of Credit Risk Profile (Details) - Retail Installment Contracts Held for Investment	Mar. 31, 2016	Dec. 31, 2015
Commercial Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	4.20%	4.00%
No-FICOs | Consumer Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	12.60%	12.20%
Under 540 | Consumer Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	23.20%	23.40%
540-599 | Consumer Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	31.00%	30.90%
600-639 | Consumer Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	17.10%	17.30%
Over 640 | Consumer Portfolio Segment
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net, percentage	11.90%	12.20%

Credit Loss Allowance and Cre57

Credit Loss Allowance and Credit Quality - Summary Commercial Loan Credit Quality Indicators for Receivables from Dealers Held for Investment (Details) - Receivables From Dealers - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	$ 76,015	$ 76,941
Pass
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	67,644	68,873
Special Mention
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	2,406	8,068
Substandard
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	5,965	0
Doubtful
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	0	0
Loss
Financing Receivable Recorded Investment [Line Items]
Financing receivable, net	$ 0	$ 0

Credit Loss Allowance and Cre58

Credit Loss Allowance and Credit Quality - Summary of TDRs (Details) - Retail Installment Contracts - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable Modifications [Line Items]
Outstanding recorded investment	$ 4,803,486	$ 4,667,380
Impairment	(1,374,510)	(1,356,092)
Outstanding recorded investment, net of impairment	$ 3,428,976	$ 3,311,288

Credit Loss Allowance and Cre59

Credit Loss Allowance and Credit Quality - Summary of Delinquent TDRs (Details) - Retail Installment Contracts - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Troubled Debt Restructuring Debtor Current Period [Line Items]
Principal, 31-60 days past due	$ 793,139	$ 942,021
Delinquent principal over 60 days	367,413	510,015
Total delinquent TDR principal	$ 1,160,552	$ 1,452,036

Credit Loss Allowance and Cre60

Credit Loss Allowance and Credit Quality - Average Recorded Investment and Income Recognized on TDR Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Retail Installment Contracts
Financing Receivable Modifications [Line Items]
Average outstanding recorded investment in TDRs	$ 4,735,433	$ 4,283,186
Interest income recognized	$ 174,191	181,410
Personal Loans
Financing Receivable Modifications [Line Items]
Average outstanding recorded investment in TDRs		10,387
Interest income recognized		$ 589

Credit Loss Allowance and Cre61

Credit Loss Allowance and Credit Quality - Summary of Financial Effects of TDRs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)contract	Mar. 31, 2015USD ($)contract
Retail Installment Contracts
Financing Receivable Modifications [Line Items]
Outstanding recorded investment before TDR	$ 703,948	$ 848,367
Outstanding recorded investment after TDR	$ 711,225	$ 857,245
Number of contracts (not in thousands) | contract	39,380	48,892
Personal Loans
Financing Receivable Modifications [Line Items]
Outstanding recorded investment before TDR		$ 5,394
Outstanding recorded investment after TDR		$ 5,356
Number of contracts (not in thousands) | contract		4,468

Credit Loss Allowance and Cre62

Credit Loss Allowance and Credit Quality - Summary of Loan Restructuring Accounted for as TDRs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)contract	Mar. 31, 2015USD ($)contract
Retail Installment Contracts
Financing Receivable Modifications [Line Items]
Recorded investment in TDRs that subsequently defaulted | $	$ 204,040	$ 185,192
Number of contracts (not in thousands) | contract	11,402	10,741
Personal Loans
Financing Receivable Modifications [Line Items]
Recorded investment in TDRs that subsequently defaulted | $		$ 1,411
Number of contracts (not in thousands) | contract		1,411

Debt - Schedule of Credit Facil

Debt - Schedule of Credit Facilities (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Apr. 14, 2016
Line Of Credit Facility [Line Items]
Utilized Balance	$ 8,389,269,000	$ 6,902,779,000
Unsecured Debt
Line Of Credit Facility [Line Items]
Utilized Balance	1,591,882,000	1,420,584,000
Total facilities with third parties
Line Of Credit Facility [Line Items]
Utilized Balance	8,389,269,000	6,902,779,000
Committed Amount	10,722,361,000	10,225,904,000
Assets Pledged	9,662,205,000	8,063,878,000
Restricted Cash Pledged	$ 254,734,000	$ 178,847,000
Warehouse line, due June 2016
Line Of Credit Facility [Line Items]
Maturity Date	2016-06	2016-06
Utilized Balance	$ 328,484,000	$ 378,301,000
Committed Amount	$ 500,000,000	$ 500,000,000
Effective Rate	1.53%	1.48%
Assets Pledged	$ 470,935,000	$ 535,737,000
Restricted Cash Pledged	$ 0	$ 0
Warehouse line, due Various
Line Of Credit Facility [Line Items]
Maturity Date, Various	Various	Various
Utilized Balance	$ 898,785,000	$ 808,135,000
Committed Amount	$ 1,250,000,000	$ 1,250,000,000
Effective Rate	1.65%	1.29%
Assets Pledged	$ 1,268,593,000	$ 1,137,257,000
Restricted Cash Pledged	$ 33,876,000	$ 24,942,000
Warehouse line, due July 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-07	2017-07
Utilized Balance	$ 1,136,620,000	$ 682,720,000
Committed Amount	$ 1,260,000,000	$ 1,260,000,000
Effective Rate	1.26%	1.35%
Assets Pledged	$ 1,327,405,000	$ 809,185,000
Restricted Cash Pledged	$ 39,890,000	$ 20,852,000
Warehouse line, due July 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-07	2017-07
Utilized Balance	$ 2,151,543,000	$ 2,247,443,000
Committed Amount	$ 2,940,000,000	$ 2,940,000,000
Effective Rate	1.37%	1.41%
Assets Pledged	$ 3,301,792,000	$ 3,412,321,000
Restricted Cash Pledged	$ 59,169,000	$ 48,589,000
Warehouse Facility, due December 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-12	2017-12
Utilized Balance	$ 1,342,277,000	$ 944,877,000
Committed Amount	$ 1,800,000,000	$ 2,000,000,000
Effective Rate	1.59%	1.56%
Assets Pledged	$ 1,903,553,000	$ 1,345,051,000
Restricted Cash Pledged	$ 45,797,000	$ 32,038,000
Repurchase facility, due 2016
Line Of Credit Facility [Line Items]
Maturity Date	2016-12	2016-12
Utilized Balance	$ 1,147,361,000	$ 850,904,000
Committed Amount	$ 1,147,361,000	$ 850,904,000
Effective Rate	2.51%	2.07%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 44,767,000	$ 34,166,000
Debt term	180 days
Warehouse Facility, due March 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-03
Utilized Balance	$ 886,199,000
Committed Amount	$ 1,000,000,000
Effective Rate	1.26%
Assets Pledged	$ 1,287,618,000
Restricted Cash Pledged	$ 28,733,000
Warehouse Facility, due September 2017
Line Of Credit Facility [Line Items]
Maturity Date		2017-09
Utilized Balance		$ 565,399,000
Committed Amount		$ 1,000,000,000
Effective Rate		1.20%
Assets Pledged		$ 824,327,000
Restricted Cash Pledged		$ 15,759,000
Warehouse line, due November 2016
Line Of Credit Facility [Line Items]
Maturity Date	2016-11	2016-11
Utilized Balance	$ 175,000,000	$ 175,000,000
Committed Amount	$ 175,000,000	$ 175,000,000
Effective Rate	1.99%	1.90%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	$ 0
Warehouse line, due November 2016
Line Of Credit Facility [Line Items]
Maturity Date	2016-11	2016-11
Utilized Balance	$ 250,000,000	$ 250,000,000
Committed Amount	$ 250,000,000	$ 250,000,000
Effective Rate	1.99%	1.90%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 2,502,000	2,501,000
Warehouse Facility, due January 2018
Line Of Credit Facility [Line Items]
Maturity Date	2018-01
Utilized Balance	$ 73,000,000
Committed Amount	$ 400,000,000
Effective Rate	3.13%
Assets Pledged	$ 102,309,000
Restricted Cash Pledged	0
Total facilities with Santander and related subsidiaries
Line Of Credit Facility [Line Items]
Utilized Balance	2,775,000,000	2,600,000,000
Committed Amount	4,800,000,000	4,800,000,000
Assets Pledged	0	0
Restricted Cash Pledged	$ 0	$ 0
Line of credit, due December 2016
Line Of Credit Facility [Line Items]
Maturity Date	2016-12	2016-12
Utilized Balance	$ 500,000,000	$ 500,000,000
Committed Amount	$ 500,000,000	$ 500,000,000
Effective Rate	2.74%	2.65%
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	$ 0
Committed Amount	$ 500,000,000	$ 500,000,000
Effective Rate	3.49%	3.48%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	$ 0
Line of credit, due December 2016
Line Of Credit Facility [Line Items]
Maturity Date	2016-12	2016-12
Utilized Balance	$ 1,000,000,000	$ 1,000,000,000
Committed Amount	$ 1,000,000,000	$ 1,750,000,000
Effective Rate	2.70%	2.61%
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	$ 975,000,000	$ 800,000,000
Committed Amount	$ 1,000,000,000	$ 1,750,000,000
Effective Rate	2.94%	2.84%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	$ 0
Line of credit, due March 2017
Line Of Credit Facility [Line Items]
Maturity Date	2017-03	2017-03
Utilized Balance	$ 300,000,000	$ 300,000,000
Committed Amount	$ 300,000,000	$ 300,000,000
Effective Rate	1.99%	1.88%
Assets Pledged	$ 0	$ 0
Restricted Cash Pledged	$ 0	0
Line of credit, due March 2019
Line Of Credit Facility [Line Items]
Maturity Date	2019-03
Utilized Balance	$ 0
Committed Amount	$ 1,500,000,000
Effective Rate	4.44%
Assets Pledged	$ 0
Restricted Cash Pledged	0
Revolving credit facilities
Line Of Credit Facility [Line Items]
Utilized Balance	11,164,269,000	9,502,779,000
Committed Amount	15,522,361,000	15,025,904,000
Assets Pledged	9,662,205,000	8,063,878,000
Restricted Cash Pledged	$ 254,734,000	$ 178,847,000
Subsequent Event | Repurchase facility, due 2016
Line Of Credit Facility [Line Items]
Utilized Balance			$ 237,000,000

Debt - Summary of Secured Struc

Debt - Summary of Secured Structured Financings (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Balance	$ 20,340,959	$ 20,872,900
Initial Note Amounts Issued	8,389,269	6,902,779
Secured Structured Financings
Debt Instrument [Line Items]
Balance	20,340,959	20,872,900
Initial Note Amounts Issued	38,099,073	36,652,463
Collateral	27,481,425	27,751,419
Restricted Cash	1,895,111	1,700,697
Secured Structured Financings | Securitizations
Debt Instrument [Line Items]
Balance	12,550,728	12,659,996
Initial Note Amounts Issued	26,563,082	24,923,292
Collateral	16,452,180	16,256,067
Restricted Cash	$ 1,396,275	$ 1,242,857
Secured Structured Financings | 2014 Securitizations
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2018-09	2018-09
Balance	$ 364,210	$ 433,771
Initial Note Amounts Issued	2,525,540	2,525,540
Collateral	500,444	580,581
Restricted Cash	$ 85,090	$ 84,231
Secured Structured Financings | 2014 Securitizations | Minimum
Debt Instrument [Line Items]
Initial Weighted Average Interest Rate	0.92%	0.92%
Secured Structured Financings | 2014 Securitizations | Maximum
Debt Instrument [Line Items]
Initial Weighted Average Interest Rate	1.23%	1.23%
Secured Structured Financings | 2015 Securitizations
Debt Instrument [Line Items]
Balance	$ 1,718,547	$ 2,000,915
Initial Note Amounts Issued	6,689,700	6,689,700
Collateral	2,251,347	2,577,552
Restricted Cash	$ 269,731	$ 267,623
Secured Structured Financings | 2015 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 | 2015 Securitizations | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2021-01	2021-01
Initial Weighted Average Interest Rate	1.59%	1.59%
Secured Structured Financings | 2014 Securitizations
Debt Instrument [Line Items]
Balance	$ 2,569,061	$ 2,956,273
Initial Note Amounts Issued	6,391,020	6,391,020
Collateral	3,435,615	3,894,365
Restricted Cash	$ 320,444	$ 313,356
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	2021-01	2021-01
Initial Weighted Average Interest Rate	1.72%	1.72%
Secured Structured Financings | 2015 Securitizations
Debt Instrument [Line Items]
Balance	$ 6,340,242	$ 7,269,037
Initial Note Amounts Issued	9,317,032	9,317,032
Collateral	8,223,569	9,203,569
Restricted Cash	$ 613,124	$ 577,647
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	$ 1,558,668
Initial Note Amounts Issued	1,639,790
Collateral	2,041,205
Restricted Cash	$ 107,886
Secured Structured Financings | 2016 Securitizations | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2022-04
Initial Weighted Average Interest Rate	1.94%
Secured Structured Financings | 2016 Securitizations | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2023-05
Initial Weighted Average Interest Rate	2.44%
Secured Structured Financings | Privately issued amortizing notes
Debt Instrument [Line Items]
Balance	$ 7,790,231	$ 8,212,904
Initial Note Amounts Issued	11,535,991	11,729,171
Collateral	11,029,245	11,495,352
Restricted Cash	$ 498,836	$ 457,840
Secured Structured Financings | 2010 Private issuances
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2011-06	2011-06
Balance	$ 162,149	$ 108,201
Initial Note Amounts Issued	$ 516,000	$ 516,000
Initial Weighted Average Interest Rate	1.29%	1.29%
Collateral	$ 260,960	$ 240,026
Restricted Cash	$ 7,794	$ 6,855
Secured Structured Financings | 2011 Private issuances
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2018-12	2018-12
Balance	$ 552,070	$ 708,884
Initial Note Amounts Issued	$ 1,700,000	$ 1,700,000
Initial Weighted Average Interest Rate	1.46%	1.46%
Collateral	$ 987,640	$ 1,142,853
Restricted Cash	51,728	50,432
Secured Structured Financings | 2014 Private issuances
Debt Instrument [Line Items]
Balance	2,919,009	2,836,420
Initial Note Amounts Issued	2,693,754	2,693,754
Collateral	4,597,426	4,311,481
Restricted Cash	$ 171,712	$ 143,450
Secured Structured Financings | 2014 Private issuances | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2018-09	2018-09
Initial Weighted Average Interest Rate	1.13%	1.13%
Secured Structured Financings | 2014 Private issuances | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2020-09	2020-09
Initial Weighted Average Interest Rate	1.38%	1.38%
Secured Structured Financings | 2015 Private issuances
Debt Instrument [Line Items]
Balance	$ 1,282,460	$ 1,541,970
Initial Note Amounts Issued	3,271,175	3,271,175
Collateral	1,871,997	2,192,495
Restricted Cash	$ 114,993	$ 95,325
Secured Structured Financings | 2015 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 | 2015 Private issuances | Maximum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2021-12	2021-12
Initial Weighted Average Interest Rate	1.40%	1.40%
Secured Structured Financings | 2015 Private issuances
Debt Instrument [Line Items]
Balance	$ 2,392,487	$ 3,017,429
Initial Note Amounts Issued	2,855,062	3,548,242
Collateral	2,660,644	3,608,497
Restricted Cash	$ 141,190	$ 161,778
Secured Structured Financings | 2015 Private issuances | Minimum
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2016-12	2016-11
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	2020-05
Initial Weighted Average Interest Rate	2.81%	2.81%
Secured Structured Financings | 2016 Private issuances
Debt Instrument [Line Items]
Original Estimated Maturity Dates	2020-05
Balance	$ 482,056
Initial Note Amounts Issued	$ 500,000
Initial Weighted Average Interest Rate	1.55%
Collateral	$ 650,578
Restricted Cash	$ 11,419

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Private issuance of notes backed by vehicle leases	$ 3,904,803,000		$ 3,228,240,000
Interest expense on secured structured financing	94,376,000	$ 60,852,000
Revolving credit facilities
Debt Instrument [Line Items]
Committed amount	15,522,361,000		$ 15,025,904,000
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, 2016
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	$ 300,000,000
Total facilities with Santander and related subsidiaries | Revolving credit facilities | Unsecured Debt
Debt Instrument [Line Items]
Committed amount	$ 1,500,000,000

Variable Interest Entities - Su

Variable Interest Entities - Summary of Assets and Liabilities Related to VIEs (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Restricted cash	$ 2,636,216	$ 2,236,329
Finance receivables held for sale, net	2,324,190	2,868,603
Leased vehicles, net	7,298,521	6,516,030
Various other assets	656,449	549,644
Notes payable — credit facilities	8,389,269	6,902,779
Various other liabilities	235,184	277,862
Variable Interest Entities
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Restricted cash	1,982,611	1,842,877
Finance receivables held for sale, net	1,271,856	1,539,686
Finance receivables held for investment, net	22,897,337	22,891,064
Leased vehicles, net	7,298,521	6,516,030
Various other assets	581,758	620,482
Notes payable — credit facilities	30,500,847	30,611,019
Various other liabilities	$ 7,654	$ 5,379

Variable Interest Entities - 67

Variable Interest Entities - Summary of Cash Flows Received from Securitization Trusts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Variable Interest Entity [Line Items]
Assets securitized	$ 3,621,496	$ 3,981,855
Net proceeds from new securitizations	2,633,626	3,060,862
Cash received for servicing fees	194,365	159,802
Net distributions from Trusts	431,591	300,487
Total cash received from Trusts	3,259,582	3,521,151
VIE, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Assets securitized	0	0
Net proceeds from new securitizations	0	0
Cash received for servicing fees	15,701	5,304
Total cash received from Trusts	$ 15,701	$ 5,304

Variable Interest Entities - Ad

Variable Interest Entities - Additional Information (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Gross retail installment contracts transferred	$ 28,446,136,000	$ 27,995,907,000
VIE, Not Primary Beneficiary | Chrysler Capital
Securitization Financial Asset For Which Transfer Is Accounted As Sale [Line Items]
Gross retail installment contracts transferred	3,407,333,000	$ 3,897,223,000
Maximum exposure to loss, involvement with the VIE	$ 0

Derivative Financial Instrume69

Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Estimated unrealized losses to be reclassified from AOCI to interest expense in next 12 months	$ 48,000
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 - Summary of Underlying Notional Amounts and Aggregate Fair Values (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Interest Rate Swap | Designated as Cash Flow Hedges
Derivative [Line Items]
Notional	$ 10,152,000,000	$ 9,150,000,000
Fair Value	(59,008,000)	1,706,000
Interest Rate Swap | Not Designated As Hedges
Derivative [Line Items]
Notional	1,984,000,000	2,399,000,000
Fair Value	(6,580,000)	(1,306,000)
Interest Rate Cap
Derivative [Line Items]
Notional	9,159,361,000	10,013,912,000
Fair Value	13,716,000	32,951,000
Options for Interest Rate Cap
Derivative [Line Items]
Notional	9,159,361,000	10,013,912,000
Fair Value	$ (13,785,000)	$ (32,977,000)

Derivative Financial Instrume71

Derivative Financial Instruments - Offsetting of Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Offsetting of Financial Assets
Gross Amounts of Recognized Assets	$ 13,906	$ 41,421
Gross Amounts of Recognized Assets, Total derivative assets	13,906	41,421
Gross Amounts of Recognized Assets, Total financial assets	13,906	41,421
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Gross Amounts Offset in the Condensed Consolidated Balance Sheet, Total financial assets	0	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheet	13,906	41,421
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheet, Total derivative assets	13,906	41,421
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheet, Total financial assets	13,906	41,421
Total derivatives not subject to a master netting arrangement or similar arrangement	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments, Total financial assets	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received, Total financial assets	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	13,906	41,421
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total financial assets	13,906	41,421
Offsetting of Financial Liabilities
Gross Amounts of Recognized Liabilities	79,563	41,047
Gross Amounts of Recognized Liabilities, Total derivative liabilities	79,563	41,047
Gross Amounts of Recognized Liabilities, Total financial liabilities	79,563	41,047
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	(39,046)
Gross Amounts Offset in the Condensed Consolidated Balance Sheet, Total derivative liabilities	0	(39,046)
Gross Amounts Offset in the Condensed Consolidated Balance Sheet, Total financial liabilities	0	(39,046)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	79,563	2,001
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet, Total derivative liabilities	79,563	2,001
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet, Total financial liabilities	79,563	2,001
Total derivatives not subject to a master netting arrangement or similar arrangement, Gross Amounts of Recognized Liabilities	0	0
Total derivatives not subject to a master netting arrangement or similar arrangement, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Total derivatives not subject to a master netting arrangement or similar arrangement, Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments, Total financial liabilities	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Pledged	(78,720)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Pledged, Total financial liabilities	(78,720)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	843	2,001
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount, Total financial liabilities	843	2,001
Interest Rate Swaps | Santander and Affiliates
Offsetting of Financial Assets
Gross Amounts of Recognized Assets	189	4,607
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheet	189	4,607
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	189	4,607
Offsetting of Financial Liabilities
Gross Amounts of Recognized Liabilities	18,179	4,977
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	(3,430)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	18,179	1,547
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Pledged	(17,336)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	843	1,547
Interest Rate Swaps | Third Party
Offsetting of Financial Assets
Gross Amounts of Recognized Assets	0	3,863
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheet	0	3,863
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	0	3,863
Offsetting of Financial Liabilities
Gross Amounts of Recognized Liabilities	47,599	3,093
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	(3,093)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	47,599	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Pledged	(47,599)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	0	0
Interest Rate Caps | Santander and Affiliates
Offsetting of Financial Assets
Gross Amounts of Recognized Assets	4,908	12,724
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheet	4,908	12,724
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	4,908	12,724
Interest Rate Caps | Third Party
Offsetting of Financial Assets
Gross Amounts of Recognized Assets	8,809	20,227
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheet	8,809	20,227
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Received	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	8,809	20,227
Back to Back | Santander and Affiliates
Offsetting of Financial Liabilities
Gross Amounts of Recognized Liabilities	4,908	12,724
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	(12,270)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	4,908	454
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Pledged	(4,908)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	0	454
Back to Back | Third Party
Offsetting of Financial Liabilities
Gross Amounts of Recognized Liabilities	8,877	20,253
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	(20,253)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	8,877	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Financial Instruments	0	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Cash Collateral Pledged	(8,877)	0
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheet, Net Amount	0	0
Total Return Swap
Offsetting of Financial Liabilities
Total derivatives not subject to a master netting arrangement or similar arrangement, Gross Amounts of Recognized Liabilities	0	0
Total derivatives not subject to a master netting arrangement or similar arrangement, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Total derivatives not subject to a master netting arrangement or similar arrangement, Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	$ 0	$ 0

Derivative Financial Instrume72

Derivative Financial Instruments - Gross Gains (Losses) Reclassified from Accumulated Other Comprehensive Income (Details) - Interest Rate Swaps - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Designated as Cash Flow Hedges
Derivative Instruments Gain Loss [Line Items]
Recognized in Earnings	$ 208	$ 223
Gross Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Loss)	(73,005)	(31,536)
Gross Gains (Losses) Reclassified From Accumulated Other Comprehensive Income to Interest Expense	(12,082)	(11,071)
Not Designated As Hedges
Derivative Instruments Gain Loss [Line Items]
Recognized in Earnings	$ (5,499)	$ (2,429)

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	1 Months Ended
	May. 31, 2013	Mar. 31, 2016	Dec. 31, 2015
Other Assets [Line Items]
Other assets		$ 656,449	$ 549,644
Upfront fee	$ 150,000
Finance and other interest income amortization period	10 years
Upfront fee
Other Assets [Line Items]
Other assets		106,251	110,000
Vehicles
Other Assets [Line Items]
Other assets		251,780	203,906
Manufacturer subvention payments receivable
Other Assets [Line Items]
Other assets		146,735	132,856
Accounts receivable
Other Assets [Line Items]
Other assets		24,132	27,028
Prepaids
Other Assets [Line Items]
Other assets		44,332	33,183
Derivative assets
Other Assets [Line Items]
Other assets		65,285	24,090
Other
Other Assets [Line Items]
Other assets		$ 17,934	$ 18,581

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015		Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Income tax expense	$ 116,129	$ 115,688	[1]
Effective tax rate	36.70%	32.00%
Related party taxes receivable	$ 85			$ 0
Related party taxes payable	0			342
Tax Sharing Agreement
Operating Loss Carryforwards [Line Items]
Related party taxes receivable	$ 85
Related party taxes payable				$ 342
[1]	As Restated - Note 1

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($)	Nov. 13, 2015	Nov. 04, 2015	Oct. 01, 2015	Feb. 25, 2015	Mar. 31, 2016	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2015	Aug. 01, 2015	Jul. 31, 2015	May. 09, 2015
Contingencies And Commitments [Line Items]
Purchase obligation					$ 11,596,000			$ 12,486,000
Repurchase rate (up to)					9.99%
Retainer rate (up to) upon exercise of repurchase right					20.00%
Servicing fees adjustment					$ 836,000	$ (147,000)
Outstanding repurchase requests					0
Commitments to sell charged off loan receivables in bankruptcy status					350,000,000
Sales subject to market price check	$ 275,000,000
Remaining commitment to sell charged off loan receivables					195,652,000			200,707,000
Estimated fair value of the guarantee					$ 1,929,000			2,893,000
Assurance of Discontinuance | Unfavorable Regulatory Action
Contingencies And Commitments [Line Items]
Civil fine, amount		$ 150,000
Violation of Servicemembers Civil Relief Act | Civil Fine
Contingencies And Commitments [Line Items]
Civil fine, amount				$ 55,000
Violation of Servicemembers Civil Relief Act | Civil Fine to Affected Service Members | Minimum
Contingencies And Commitments [Line Items]
Civil fine, amount				9,360,000
Violation of Servicemembers Civil Relief Act | Lost Equity for Each Repossession
Contingencies And Commitments [Line Items]
Civil fine, amount				10,000
Violation of Servicemembers Civil Relief Act | Sought to Collect Repossession-related Fees
Contingencies And Commitments [Line Items]
Civil fine, amount				$ 5,000
CBP
Contingencies And Commitments [Line Items]
Loans servicing, loss-sharing payment ratio					0.50%
CBP | FCA
Contingencies And Commitments [Line Items]
Maximum purchase amount committed									$ 200,000	$ 600,000
Minimum purchase amount committed per quarter									$ 50,000	$ 250,000
SBNA
Contingencies And Commitments [Line Items]
Indemnification of leases											$ 48,226,000
Lending Company
Contingencies And Commitments [Line Items]
Purchase commitment amount					$ 30,000,000
Purchase commitment percent					50.00%
Cancellation notice period					90 days
Bank of America
Contingencies And Commitments [Line Items]
Commitment to sell loans, maturity date					May 31, 2018
Commitment to sell loans			$ 350,000		$ 300,000,000
Loan commitment, termination notice, period			90 days				120 days
Revenue Sharing Payments and Gain-Sharing Payments to FCA | FCA
Contingencies And Commitments [Line Items]
Payment obligation					10,701,000			12,054,000
Servicer Performance Payment | Bank of America
Contingencies And Commitments [Line Items]
Payment obligation					8,004,000			6,331,000
Loss Sharing Payment [Member] | CBP
Contingencies And Commitments [Line Items]
Payment obligation					3,354,000			3,375,000
Consumer Portfolio Segment | Automobile Loan | Purchased Pool of Auto Loans Subject to Total Return Settlement Payments to Originator
Contingencies And Commitments [Line Items]
Payment obligation					56,791,000			57,573,000
Receivables From Dealers
Contingencies And Commitments [Line Items]
Financing receivable, net					76,015,000			76,941,000
Receivables From Dealers | Consumer Portfolio Segment | Unfunded Loan Commitment
Contingencies And Commitments [Line Items]
Financing receivable, net					26,015,000			26,941,000
Financing receivable, committed amount					$ 28,549,000			27,385,000
July 2,017
Contingencies And Commitments [Line Items]
Purchase commitment amount								$ 30,000,000
Purchase commitment percent								50.00%

Related-Party Transactions - Ad

Related-Party Transactions - Additional Information (Details)	1 Months Ended	3 Months Ended
	Aug. 31, 2015	Mar. 31, 2016USD ($)ft²shares	Mar. 31, 2015USD ($)$ / h	Dec. 31, 2015USD ($)	Jul. 02, 2015$ / sharesshares	Jan. 01, 2015	Jul. 16, 2014USD ($)	Jun. 30, 2014USD ($)
Class of Stock [Line Items]
Restricted cash		$ 2,636,216,000		$ 2,236,329,000
Capmark
Class of Stock [Line Items]
Ownership percentage by affiliate of noncontrolling interest owner		32.00%
Centerbridge
Class of Stock [Line Items]
Ownership percentage by noncontrolling owners (less than)			0.00%			1.00%
Third Party Retailer
Class of Stock [Line Items]
Advances on receivables originated under the agreement			$ 158,229,000
Proceeds from receivables originated under the agreement			277,360,000
Chairman and CEO | Modified Stock Option
Class of Stock [Line Items]
Compensation liability		$ 115,139,000		115,139,000
Santander
Class of Stock [Line Items]
Guarantee fee, basis spread	12.50%
Guarantee fee expense		1,578,000
Guarantee fee payable		3,860,000
Santander and Affiliates
Class of Stock [Line Items]
Outstanding notional amount		11,340,000,000		13,739,000,000
Collateral coverage on derivative liabilities		31,619,000		20,775,000
Derivative instrument interest expenses		10,150,000	17,242,000
SBNA
Class of Stock [Line Items]
Funds receivable		0		0
Referral fee		$ 9,000,000
Referral fee, amortization period		10 years
Unamortized fee balance		$ 6,525,000		6,750,000
Referral fee income		225,000	225,000
Servicing fee income on receivables sold		1,549,000	1,457,000
Origination income		0	5,624,000
Credit loss indemnification of leases		31,598,000		34,516,000				$ 48,226,000
Indemnification liability		2,691,000		2,691,000
SBNA | Dealer Loan Portfolio
Class of Stock [Line Items]
Relationship management fees receivable		525,000		419,000
Relationship management fee income		1,279,000	1,623,000
Servicing fee expense		34,000	86,000
Servicing fees payable		36,000		37,000
SBNA | Loan Origination on Sales of Floorplan Inventory
Class of Stock [Line Items]
Due to related parties		5,065,000		2,737,000
SBNA | Serviced Auto Loan and Retail Installment
Class of Stock [Line Items]
Servicing fee income on receivables sold		2,108,000	1,944,000
Produban Servicios Informaticos Generales S.L
Class of Stock [Line Items]
Expenses incurred		24,000	102,000
Cost Method Investment
Class of Stock [Line Items]
Originations of revolving personal loans		$ 0	7,626,000
Chairman and CEO | Expenses Paid for Use of CEO Private Plane
Class of Stock [Line Items]
Related party, amount of transaction			$ 183,000
Average hourly rate (in usd per hour) | $ / h			5,800
Chairman and CEO, President and CFO and Board Member
Class of Stock [Line Items]
Area of leased property (in square foot) | ft²		373,000
Lease payments		$ 1,576,000	$ 522,000
Lease term		12 years
Future minimum payment of lease		$ 73,889,000
SIS | Affiliates | Fees Paid for Co-Management of Certain Securitizations
Class of Stock [Line Items]
Expenses from transaction with related party		100,000	$ 100,000
DDFS LLC | Affiliates | Shareholders Agreement
Class of Stock [Line Items]
Call transaction, average share price (usd per share) | $ / shares					$ 26.83
DDFS LLC | Affiliates | Amended and Restated Loan Agreement | SHUSA
Class of Stock [Line Items]
Long-term debt		$ 290,000,000		290,000,000
Committed amount							$ 300,000,000
Minimum pledged collateral to outstanding principal requirement (less than) (percentage)		1.5
Minimum pledged collateral to outstanding principal requirement default, repayment of oustanding principal (at least) (percentage)		2
DDFS LLC | Affiliates | Pledge Agreement | SHUSA
Class of Stock [Line Items]
Common stock pledged as collateral (in shares) | shares		29,598,506
DDFS LLC | Affiliates | Call Transaction | SHUSA
Class of Stock [Line Items]
Number of shares called by warrant (in shares) | shares					34,598,506
Proceeds payable upon consummation of call transaction		$ 928,278,000
DDFS LLC | Affiliates | Call Transaction | LIBOR
Class of Stock [Line Items]
Call transaction, basis spread on variable rate		1.00%
Secured Debt | SDART 2013-3 Trust | SIS | Affiliates
Class of Stock [Line Items]
Debt, principal		$ 725,000		725,000
Long-term debt		237,000		510,000
Secured Debt | CCART 2013-A Trust | SIS | Affiliates
Class of Stock [Line Items]
Debt, principal				2,000,000
Consumer Portfolio Segment | Unfunded Loan Commitment | Cost Method Investment
Class of Stock [Line Items]
Financing receivable, net		0		0
Demand Deposits | Banco Santander Puerto Rico | Subsidiaries
Class of Stock [Line Items]
Restricted cash		$ 4,420,000		$ 4,920,000

Related-Party Transactions - In

Related-Party Transactions - Interest Expense and Accrued Interest (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Santander
Related Party Transaction [Line Items]
Line of credit agreement, interest expense (Note 5)	$ 20,273	$ 25,484
Line of credit agreement, accrued interest (Note 5)	5,997		$ 6,015
SHUSA
Related Party Transaction [Line Items]
Line of credit agreement, interest expense (Note 5)	2,864	$ 1,290
Line of credit agreement, accrued interest (Note 5)	$ 1,450		$ 267

Related-Party Transactions - 78

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, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Total serviced portfolio	$ 653,186	$ 692,291
Cash collections due to owner	24,234	19,302
Servicing fees receivable	$ 2,244	$ 1,476

Related-Party Transactions - 79

Related-Party Transactions - Information on Consumer Vehicle Lease Portfolio (Details) - SBNA - Consumer Vehicle Lease - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Total serviced portfolio	$ 1,964,315	$ 2,198,519
Cash collections due to owner	1,317	132
Servicing fees receivable	821	784
Revenue share reimbursement receivable	$ 2,514	$ 1,370

Computation of Basic and Dilu80

Computation of Basic and Diluted Earnings per Common Share - Additional Information (Details) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Employee stock option awards excluded from computation of earnings per share (in shares)	3,724,001	1,512,091

Computation of Basic and Dilu81

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, 2016	Mar. 31, 2015
Earnings per common share
Net income	$ 200,693	$ 246,282
Weighted average number of common shares outstanding before restricted participating shares	357,625,000	348,955,000
Weighted average number of participating restricted common shares outstanding	350,000	467,000
Weighted average number of common shares outstanding	357,974,890	349,421,960	[1]
Earnings per common share (in usd per share)	$ 0.56	$ 0.70	[1]
Earnings per common share - assuming dilution
Net income	$ 200,693	$ 246,282
Weighted average number of common shares outstanding	357,974,890	349,421,960	[1]
Effect of employee stock-based awards (in shares)	2,253,000	7,232,000
Weighted average number of common shares outstanding - assuming dilution	360,228,272	356,654,466	[1]
Earnings per common share - assuming dilution (in usd per share)	$ 0.56	$ 0.69	[1]
[1]	As Restated - Note 1

Fair Value of Financial Instr82

Fair Value of Financial Instruments - Summary of Fair Value Estimates, Methods and Assumptions (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	[1]	Dec. 31, 2014	[1]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents - $4,120 and zero held for affiliates, respectively	$ 42,047	$ 18,893	$ 26,952		$ 33,157
Finance receivables held for sale, net	2,324,190	2,868,603
Finance receivables held for investment, net	24,082,180	23,479,680
Restricted cash	2,636,216	2,236,329
Notes payable — credit facilities	8,389,269	6,902,779
Notes payable — secured structured financings	20,340,959	20,872,900
Notes payable — related party	2,775,000	2,600,000
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents - $4,120 and zero held for affiliates, respectively	42,047	18,893
Finance receivables held for sale, net	2,324,190	2,868,603
Finance receivables held for investment, net	24,082,180	23,479,680
Restricted cash	2,636,216	2,236,329
Notes payable — credit facilities	8,389,269	6,902,779
Notes payable — secured structured financings	20,340,959	20,872,900
Notes payable — related party	2,775,000	2,600,000
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents - $4,120 and zero held for affiliates, respectively	42,047	18,893
Finance receivables held for sale, net	2,334,887	2,889,043
Finance receivables held for investment, net	25,715,311	24,960,092
Restricted cash	2,636,216	2,236,329
Notes payable — credit facilities	8,389,269	6,902,779
Notes payable — secured structured financings	20,406,382	20,917,733
Notes payable — related party	$ 2,775,000	$ 2,600,000
[1]	As Restated - Note 1

Fair Value of Financial Instr83

Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Retail installment contracts acquired individually	$ 4,139	$ 6,770
Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	8,809	20,227
Due from affiliates	4,908	12,724
Interest Rate Swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Due from affiliates		1,176
Other liabilities	3,118
Due to affiliates	3,462	2,481
Interest Rate Swaps | Designated as Cash Flow Hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets		3,863
Due from affiliates	189	3,431
Other liabilities	44,481	3,093
Due to affiliates	14,717	2,496
Trading Options for Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	8,877	20,253
Due to affiliates	4,908	12,724
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]
Due from affiliates		0
Other liabilities	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
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
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	8,809	20,227
Due from affiliates	4,908	12,724
Significant Other Observable Inputs (Level 2) | Interest Rate Swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Due from affiliates		1,176
Other liabilities	3,118
Due to affiliates	3,462	2,481
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		3,863
Due from affiliates	189	3,431
Other liabilities	44,481	3,093
Due to affiliates	14,717	2,496
Significant Other Observable Inputs (Level 2) | Trading Options for Interest Rate Caps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other liabilities	8,877	20,253
Due to affiliates	4,908	12,724
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Retail installment contracts acquired individually	4,139	6,770
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]
Due from affiliates		0
Other liabilities	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
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

Fair Value of Financial Instr84

Fair Value of Financial Instruments - Change in Level 3 Balances (Details) - Retail Installment Contracts Held for Investment - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, December 31, 2015	$ 4,139	$ 6,770
Gains/(losses) in earnings	(2,631)
Fair value, March 31, 2016	$ 4,139

Fair Value of Financial Instr85

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, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment of indefinite-lived intangible asset	$ 20,300
Vehicles
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	251,780	$ 203,906
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	251,780	203,906
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	978,819	1,962,893
Lower of cost or fair value expense (benefit)	68,338	609,869
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	978,819	$ 1,962,893
Intangible assets not subject to amortization - trademark
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	33,915
Lower of cost or fair value expense (benefit)	20,300
Intangible assets not subject to amortization - trademark | 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
Intangible assets not subject to amortization - trademark | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	0
Intangible assets not subject to amortization - trademark | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value, nonrecurring	$ 33,915

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2013	Dec. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued	358,108,351		358,014,870
Expiration period	10 years
Due to affiliates	$ 177,061		$ 145,013
Chairman and CEO | Modified Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Due to affiliates	$ 102,799
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	$ 858	$ 604
Omnibus Incentive Plan | RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock vesting period	3 years
Award holding period	1 year
Omnibus Incentive Plan | Certain Officers | RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock vesting period	3 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, 2016	Dec. 31, 2015
Shares
Options outstanding, Beginning balance (in shares)	12,522,706,000
Granted (in shares)	48,000,000
Exercised (in shares)	(104,535,000)
Expired (in shares)	(433,642,000)
Forfeited (in shares)	(242,115,000)
Options outstanding, Ending balance (in shares)	11,790,414,000	12,522,706,000
Options exercisable, Ending balance (in shares)	9,196,637,000
Weighted Average Exercise Price
Options outstanding, Beginning balance (in usd per share)	$ 11.84
Granted (in usd per share)	13.77
Exercised (in usd per share)	9.21
Expired (in usd per share)	10.45
Forfeited (in usd per share)	14.91
Options outstanding, Ending balance (in usd per share)	11.86	$ 11.84
Options exercisable, Weighted average exercise price, Ending balance (in usd per share)	$ 11.31
Weighted Average Remaining Contractual Term (Years)
Options outstanding, Weighted average remaining contractual term (Years)	6 years 1 month 6 days	6 years 4 months 24 days
Options exercisable, Weighted average remaining contractual term (Years)	6 years
Aggregate Intrinsic Value
Options outstanding, Aggregate intrinsic value	$ (16,200)	$ 50,163
Exercised Aggregate intrinsic value	209
Options exercisable, Aggregate intrinsic value	$ (7,517)

Shareholders' Equity - Treasury

Shareholders' Equity - Treasury Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2013	Mar. 31, 2016	Dec. 31, 2015
Equity [Abstract]
Treasury stock shares		69,005	69,005
Treasury stock value		$ 1,250	$ 1,250
Number of shares repurchased prior to the IPO	3,154
Number of shares withheld to cover income taxes related to vesting of RSUs		65,851

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance, unrealized gains (losses) on cash flow hedges	$ 4,424,963
Ending balance, unrealized losses on cash flow hedges	4,589,547
Unrealized Gains (Losses) on Cash Flow Hedges
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance, unrealized gains (losses) on cash flow hedges	2,125	$ 3,553
Other comprehensive loss before reclassifications	(45,762)	(19,791)
Amounts reclassified out of accumulated other comprehensive income (loss)	7,572	6,948
Ending balance, unrealized losses on cash flow hedges	$ (36,065)	$ (9,290)

Shareholders' Equity - Reclassi

Shareholders' Equity - Reclassification of Amounts Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Settlements of derivatives	$ 184,735	$ 148,856	[1]
Tax benefit	116,129	115,688	[1]
Net income	200,693	246,282	[1]
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	12,082	11,071
Tax benefit	(4,510)	(4,123)
Net income	$ 7,572	$ 6,948
[1]	As Restated - Note 1

Investment Gains (Losses), Ne91

Investment Gains (Losses), Net - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Investments, Debt and Equity Securities [Abstract]
Lower of cost or market adjustment, customer default activity	$ 101,347
Lower of cost or market adjustment, change in unpaid principal balance	$ 33,009

Investment Gains (Losses), Ne92

Investment Gains (Losses), Net - Schedule of Investment Gains (Losses), Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Gain on sale of loans and leases	$ 1,638	$ 21,247
Lower of cost or market adjustments	(68,338)	0
Other gains, losses and impairments, net	(6,451)	0
Gain (loss) on investments, net	$ (73,151)	$ 21,247	[1]
[1]	As Restated - Note 1