Credit Acceptance (CACC) 10-K 11 Feb 20 2019 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Feb. 04, 2020	Jun. 30, 2019
Document And Entity Information [Abstract]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Entity File Number	000-20202
Entity Registrant Name	CREDIT ACCEPTANCE CORP
Entity Incorporation, State or Country Code	MI
Entity Tax Identification Number	38-1999511
Entity Address, Address Line One	25505 W. Twelve Mile Road
Entity Address, City or Town	Southfield,
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48034-8339
Entity Central Index Key	0000885550
City Area Code	248
Local Phone Number	353-2700
Title of 12(b) Security	Common Stock, $0.01 par value
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 4,959
Entity Common Stock, Shares Outstanding		18,151,092
Current Fiscal Year End Date	--12-31
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Trading Symbol	CACC

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
ASSETS:
Cash and cash equivalents		$ 187.4	$ 25.7
Restricted cash and cash equivalents		330.3	303.6
Restricted securities available for sale	[1]	59.3	58.6
Loans receivable (including $1.4 from affiliates as of December 31, 2016)		7,221.2	6,225.2
Allowance for credit losses		(536)	(461.9)
Loans receivable, net		6,685.2	5,763.3
Property and equipment, net		59.7	40.2
Income taxes receivable		66.2	7.9
Other assets		35.1	38.1
Total Assets		7,423.2	6,237.4
Liabilities:
Accounts payable and accrued liabilities		206.4	186.4
Revolving secured line of credit		0	171.9
Secured financing		3,339.7	3,092.7
Senior notes		1,187.8	544.4
Other Borrowings	[2]	11.3	11.9
Deferred income taxes, net		322.5	236.7
Income taxes payable		0.2	2.5
Total Liabilities		5,067.9	4,246.5
Shareholders' Equity:
Preferred stock, $0.01 par value, 1,000,000 shares authorized, none issued		0	0
Common stock, $0.01 par value, 80,000,000 shares authorized, 18,352,779 and 18,972,558 shares issued and outstanding as of December 31, 2019 and December 31, 2018, respectively		0.2	0.2
Paid-in capital		157.7	154.9
Retained earnings		2,196.6	1,836.1
Accumulated other comprehensive loss		0.8	(0.3)
Total Shareholders' Equity		2,355.3	1,990.9
Total Liabilities and Shareholders' Equity		$ 7,423.2	$ 6,237.4
[1]	Measured at fair value on a recurring basis.
[2]	Measured at amortized cost with fair value disclosed.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	18,352,779	18,972,558
Common stock, shares outstanding	18,352,779	18,972,558

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues [Abstract]
Finance Charges Revenue	$ 1,369.4	$ 1,176.8	$ 1,011.5
Premiums earned	51	46.6	41.1
Other Income	68.6	62.4	57.4
Total revenue	1,489	1,285.8	1,110
Costs and expenses [Abstract]
Salaries and wages	193.3	167.8	140.1
General and administrative	65.1	55.7	55.5
Sales and marketing	70.2	67.7	58.4
Provision for credit losses	76.4	56.9	129.3
Interest	196.2	156.6	120.2
Provision for claims	30.1	26	22.7
Loss on extinguishment of debt	1.8	0	0
Total costs and expenses	633.1	530.7	526.2
Income before provision for income taxes	855.9	755.1	583.8
Provision for income taxes	199.8	181.1	113.6
Net income	$ 656.1	$ 574	$ 470.2
Net income per share [Abstract]
Basic	$ 34.71	$ 29.52	$ 24.12
Diluted	$ 34.57	$ 29.39	$ 24.04
Weighted average Shares Outstanding [Abstract]
Basic	18,900,256	19,446,067	19,497,719
Diluted	18,976,560	19,532,312	19,558,936

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax [Abstract]
Net income	$ 656.1	$ 574	$ 470.2
Unrealized gain (loss) on securities, net of tax	1.1	(0.1)	0
Other comprehensive income (loss)	1.1	(0.1)	0
Comprehensive income	$ 657.2	$ 573.9	$ 470.2

Consolidated Statements Of Shar

Consolidated Statements Of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance, shares at Dec. 31, 2016		19,877,381
Balance at Dec. 31, 2016	$ 1,173.7	$ 0.2	$ 131.7	$ 1,042	$ (0.2)
Net income	470.2	0	0	470.2	0
Stock-based compensation	$ 15.4	$ 0	15.4	0	0
Restricted stock awards, net of forfeitures, shares		8,092
Repurchase of common stock, shares	(610,260)	(610,260)
Repurchase of common stock	$ (123.5)	$ 0	(1.6)	(121.9)	0
Restricted stock units converted to common stock, shares		34,836
Balance, shares at Dec. 31, 2017		19,310,049
Balance at Dec. 31, 2017	1,535.8	$ 0.2	145.5	1,390.3	(0.2)
Net income	574	0	0	574	0
Other comprehensive income (loss)	(0.1)	0	0	0	(0.1)
Stock-based compensation	$ 10.3	$ 0	10.3	0	0
Restricted stock awards, net of forfeitures, shares		3,998
Repurchase of common stock, shares	(342,928)	(342,928)
Repurchase of common stock	$ (129.1)	$ 0	(0.9)	(128.2)	0
Restricted stock units converted to common stock, shares		1,439
Balance, shares at Dec. 31, 2018	18,972,558	18,972,558
Balance at Dec. 31, 2018	$ 1,990.9	$ 0.2	154.9	1,836.1	(0.3)
Net income	656.1	0	0	656.1	0
Other comprehensive income (loss)	1.1	0	0	0	1.1
Stock-based compensation	$ 7.6	$ 0	7.6	0	0
Restricted stock awards, net of forfeitures, shares		4,827
Repurchase of common stock, shares	(712,448)	(712,448)
Repurchase of common stock	$ (300.4)	$ 0	(4.8)	(295.6)	0
Restricted stock units converted to common stock, shares		87,842
Balance, shares at Dec. 31, 2019	18,352,779	18,352,779
Balance at Dec. 31, 2019	$ 2,355.3	$ 0.2	$ 157.7	$ 2,196.6	$ 0.8

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows From Operating Activities:
Net income	$ 656.1	$ 574	$ 470.2
Adjustments to reconcile cash provided by operating activities:
Provision for credit losses	76.4	56.9	129.3
Depreciation	7.3	5.4	6
Amortization	15.1	14.1	10.4
Increase (Decrease) in Deferred Income Taxes	85.5	49.3	(85.6)
Stock-based compensation	7.6	10.3	15.4
Loss on extinguishment of debt	1.8	0	0
Other Operating Activities, Cash Flow Statement	(0.2)	(0.2)	0.1
Change in operating assets and liabilities:
Increase in accounts payable and accrued liabilities	17.3	41.6	10.3
Increase in income taxes receivable	(58.3)	(5.7)	0.1
Increase (decrease) in income taxes payable	(2.3)	(37.4)	16.3
Increase in other assets	6	(4.4)	(6.5)
Net cash provided by operating activities	812.3	703.9	566
Cash Flows From Investing Activities:
Purchases of restricted securities available for sale	(40.1)	(43.8)	(34.5)
Proceeds from sale of restricted securities available for sale	29.1	19.7	27.8
Maturities of restricted securities available for sale	11.9	11.5	5.6
Principal collected on Loans receivable	2,971.2	2,576.7	2,189.5
Advances to Dealers	(2,424.5)	(2,414.8)	(1,968.3)
Purchases of Consumer Loans	(1,347.7)	(1,181)	(904.8)
Accelerated payments of Dealer Holdback	(58.8)	(52.6)	(47.1)
Payments of Dealer Holdback	(138.5)	(128.9)	(131.6)
Purchases of property and equipment	(26.8)	(25.1)	(8.4)
Net cash used in investing activities	(1,024.2)	(1,238.3)	(871.8)
Cash Flows From Financing Activities:
Borrowings under revolving secured line of credit	3,846.7	2,249.9	3,527.1
Repayments under revolving secured line of credit	(4,018.6)	(2,091.9)	(3,513.2)
Proceeds from secured financing	2,396.4	2,696.6	2,364.5
Repayments of secured financing	(2,149.5)	(2,116.9)	(1,907.5)
Proceeds from issuance of senior notes	800	0	0
Repayments of senior notes	(148.2)	0	0
Proceeds from mortgage note	0	12	0
Payments of debt issuance costs and debt issuance costs	(25.5)	(13.7)	(14.6)
Repurchase of common stock	(300.4)	(129.1)	(123.5)
Other financing activities	(0.6)	(7)	(2.5)
Net cash provided by financing activities	400.3	599.9	330.3
Net increase in cash and cash equivalents and restricted cash and cash equivalents	188.4	65.5	24.5
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	329.3	263.8	239.3
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	517.7	329.3	263.8
Supplemental Cash Flow Information [Abstract]
Cash paid during the period for interest	175.6	141	108.8
Cash paid during the period for income taxes	$ 172.4	$ 168.8	$ 175

Description Of Business

Description Of Business	12 Months Ended
	Dec. 31, 2019
Description Of Business [Abstract]
Description Of Business	Principal Business. Since 1972, Credit Acceptance Corporation (referred to as the “Company”, “Credit Acceptance”, “we”, “our” or “us”) has offered financing programs that enable automobile dealers to sell vehicles to consumers, regardless of their credit history. Our financing programs are offered through a nationwide network of automobile dealers who benefit from sales of vehicles to consumers who otherwise could not obtain financing; from repeat and referral sales generated by these same customers; and from sales to customers responding to advertisements for our financing programs, but who actually end up qualifying for traditional financing. Without our financing programs, consumers are often unable to purchase vehicles or they purchase unreliable ones. Further, as we report to the three national credit reporting agencies, an important ancillary benefit of our programs is that we provide consumers with an opportunity to improve their lives by improving their credit score and move on to more traditional sources of financing. We refer to automobile dealers who participate in our programs and who share our commitment to changing consumers’ lives as “Dealers”. Upon enrollment in our financing programs, the Dealer enters into a Dealer servicing agreement with us that defines the legal relationship between Credit Acceptance and the Dealer. The Dealer servicing agreement assigns the responsibilities for administering, servicing, and collecting the amounts due on retail installment contracts (referred to as “Consumer Loans”) from the Dealers to us. We are an indirect lender from a legal perspective, meaning the Consumer Loan is originated by the Dealer and assigned to us. Substantially all of the Consumer Loans assigned to us are made to consumers with impaired or limited credit histories. The following table shows the percentage of Consumer Loans assigned to us with either FICO ® scores below 650 or no FICO ® scores: For the Years Ended December 31, Consumer Loan Assignment Volume 2019 2018 2017 Percentage of total unit volume with either FICO ® scores below 650 or no FICO ® scores 95.9 % 95.6 % 95.6 % We have two programs: the Portfolio Program and the Purchase Program. Under the Portfolio Program, we advance money to Dealers (referred to as a “Dealer Loan”) in exchange for the right to service the underlying Consumer Loans. Under the Purchase Program, we buy the Consumer Loans from the Dealers (referred to as a “Purchased Loan”) and keep all amounts collected from the consumer. Dealer Loans and Purchased Loans are collectively referred to as “Loans”. The following table shows the percentage of Consumer Loans assigned to us as Dealer Loans and Purchased Loans for each of the last three years: Unit Volume Dollar Volume (1) For the Years Ended December 31, Dealer Loans Purchased Loans Dealer Loans Purchased Loans 2017 72.5 % 27.5 % 68.5 % 31.5 % 2018 69.7 % 30.3 % 67.2 % 32.8 % 2019 67.2 % 32.8 % 64.3 % 35.7 % (1) Represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program and one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program. Payments of Dealer Holdback (as defined below) and accelerated Dealer Holdback are not included. Portfolio Program As payment for the vehicle, the Dealer generally receives the following: • a down payment from the consumer; • a non-recourse cash payment (“advance”) from us; and • after the advance balance (cash advance and related Dealer Loan fees and costs) has been recovered by us, the cash from payments made on the Consumer Loan, net of certain collection costs and our servicing fee (“Dealer Holdback”). We record the amount advanced to the Dealer as a Dealer Loan, which is classified within Loans receivable in our consolidated balance sheets. Cash advanced to the Dealer is automatically assigned to the Dealer’s open pool of advances. Prior to August 5, 2019, we generally required Dealers to group advances into pools of at least 100 Consumer Loans. Beginning August 5, 2019, Dealers may also elect to close a pool containing at least 50 Consumer Loans and assign subsequent advances to a new pool. Unless we receive a request from the Dealer to keep a pool open, we automatically close each pool based on the Dealer's election. All advances within a Dealer’s pool are secured by the future collections on the related Consumer Loans assigned to the pool. For Dealers with more than one pool, the pools are cross-collateralized so the performance of other pools is considered in determining eligibility for Dealer Holdback. We perfect our security interest with respect to the Dealer Loans by obtaining control or taking possession of the Consumer Loans, which list us as lien holder on the vehicle title. The Dealer servicing agreement provides that collections received by us during a calendar month on Consumer Loans assigned by a Dealer are applied on a pool-by-pool basis as follows: • first, to reimburse us for certain collection costs; • second, to pay us our servicing fee, which generally equals 20% of collections; • third, to reduce the aggregate advance balance and to pay any other amounts due from the Dealer to us; and • fourth, to the Dealer as payment of Dealer Holdback. If the collections on Consumer Loans from a Dealer’s pool are not sufficient to repay the advance balance and any other amounts due to us, the Dealer will not receive Dealer Holdback. Certain events may also result in Dealers forfeiting their rights to Dealer Holdback, including becoming inactive before assigning 100 Consumer Loans. Dealers have an opportunity to receive an accelerated Dealer Holdback payment each time a pool of Consumer Loans is closed. The amount paid to the Dealer is calculated using a formula that considers the number of Consumer Loans assigned to the pool and the related forecasted collections and advance balance. Since typically the combination of the advance and the consumer’s down payment provides the Dealer with a cash profit at the time of sale, the Dealer’s risk in the Consumer Loan is limited. We cannot demand repayment of the advance from the Dealer except in the event the Dealer is in default of the Dealer servicing agreement. Advances are made only after the consumer and Dealer have signed a Consumer Loan contract, we have received the executed Consumer Loan contract and supporting documentation in either physical or electronic form, and we have approved all of the related stipulations for funding. For accounting purposes, the transactions described under the Portfolio Program are not considered to be loans to consumers. Instead, our accounting reflects that of a lender to the Dealer. The classification as a Dealer Loan for accounting purposes is primarily a result of (1) the Dealer’s financial interest in the Consumer Loan and (2) certain elements of our legal relationship with the Dealer. Purchase Program The Purchase Program differs from our Portfolio Program in that the Dealer receives a one-time payment from us at the time of assignment to purchase the Consumer Loan instead of a cash advance at the time of assignment and future Dealer Holdback payments. For accounting purposes, the transactions described under the Purchase Program are considered to be originated by the Dealer and then purchased by us. Program Enrollment Beginning August 5, 2019, Dealers may enroll in our Portfolio Program without incurring an enrollment fee. Prior to August 5, 2019, Dealers enrolled in our Portfolio Program by (1) paying an up-front, one-time fee of $9,850 , or (2) agreeing to allow us to retain 50% of their accelerated Dealer Holdback payment(s) on the first 100 Consumer Loan assignments. Access to the Purchase Program is typically only granted to Dealers that meet one of the following: • assigned at least 100 Consumer Loans under the Portfolio Program; • franchise dealership; or • independent dealership that meets certain criteria upon enrollment.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Principles of Consolidation The consolidated financial statements include our accounts and our wholly-owned subsidiaries. All significant intercompany transactions have been eliminated. Our primary subsidiaries as of December 31, 2019 are: Buyer’s Vehicle Protection Plan, Inc. (“BVPP”), Vehicle Remarketing Services, Inc. (“VRS”), VSC Re Company (“VSC Re”), CAC Warehouse Funding Corporation II, CAC Warehouse Funding LLC IV, CAC Warehouse Funding LLC V, CAC Warehouse Funding LLC VI, CAC Warehouse Funding LLC VII, CAC Warehouse Funding LLC VIII, Credit Acceptance Funding LLC 2016-3, Credit Acceptance Funding LLC 2017-1, Credit Acceptance Funding LLC 2017-2, Credit Acceptance Funding LLC 2017-3, Credit Acceptance Funding LLC 2018-1, Credit Acceptance Funding LLC 2018-2 and Credit Acceptance Funding LLC 2018-3, Credit Acceptance Funding LLC 2019-1, Credit Acceptance Funding LLC 2019-2 and Credit Acceptance Funding LLC 2019-3. Business Segment Information We currently operate in one reportable segment which represents our core business of offering financing programs that enable Dealers to sell vehicles to consumers regardless of their credit history. For information regarding our one reportable segment and related entity wide disclosures, see Note 15 to the consolidated financial statements. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The accounts which are subject to significant estimation include the allowance for credit losses, finance charge revenue, premiums earned, contingencies, and uncertain tax positions. Actual results could materially differ from those estimates. Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of readily marketable securities with original maturities at the date of acquisition of three months or less. As of December 31, 2019 and 2018 , we had $ 186.1 million and $ 25.1 million , respectively, in cash and cash equivalents that were not insured by the Federal Deposit Insurance Corporation (“FDIC”). Restricted cash and cash equivalents consist of cash pledged as collateral for secured financings and cash held in a trust for future vehicle service contract claims. As of December 31, 2019 and 2018 , we had $ 326.7 million and $ 303.0 million , respectively, in restricted cash and cash equivalents that were not insured by the FDIC. The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents reported in our consolidated balance sheets to the total shown in our consolidated statements of cash flows: (In millions) As of December 31, 2019 2018 2017 Cash and cash equivalents $ 187.4 $ 25.7 $ 8.2 Restricted cash and cash equivalents 330.3 303.6 255.6 Total cash and cash equivalents and restricted cash and cash equivalents $ 517.7 $ 329.3 $ 263.8 Restricted Securities Available for Sale Restricted securities available for sale consist of amounts held in a trust for future vehicle service contract claims. We determine the appropriate classification of our investments in debt securities at the time of purchase and reevaluate such determinations at each balance sheet date. Debt securities for which we do not have the intent or ability to hold to maturity are classified as available for sale, and stated at fair value with unrealized gains and losses, net of income taxes included in the determination of comprehensive income and reported as a component of shareholders’ equity. Loans Receivable and Allowance for Credit Losses Consumer Loan Assignment. For legal purposes, a Consumer Loan is considered to have been assigned to us after the following has occurred: • the consumer and Dealer have signed a Consumer Loan contract; and • we have received the executed Consumer Loan contract and supporting documentation in either physical or electronic form. For accounting and financial reporting purposes, a Consumer Loan is considered to have been assigned to us after the following has occurred: • the Consumer Loan has been legally assigned to us; and • we have made a funding decision and generally have provided funding to the Dealer in the form of either an advance under the Portfolio Program or one-time purchase payment under the Purchase Program. Portfolio Segments and Classes. We are considered to be a lender to our Dealers for Consumer Loans assigned under our Portfolio Program and a purchaser of Consumer Loans assigned under our Purchase Program. As a result, our Loan portfolio consists of two portfolio segments: Dealer Loans and Purchased Loans. Each portfolio segment is comprised of one class of Consumer Loan assignments, which is Consumer Loans originated by Dealers to finance purchases of vehicles and related ancillary products by consumers with impaired or limited credit histories. Dealer Loans . Amounts advanced to Dealers for Consumer Loans assigned under the Portfolio Program are recorded as Dealer Loans and are aggregated by Dealer for purposes of recognizing revenue and evaluating impairment. We account for Dealer Loans based on forecasted cash flows instead of contractual cash flows as we do not expect to collect all of the contractually specified amounts due to the credit quality of the underlying Consumer Loans. The outstanding balance of each Dealer Loan included in Loans receivable is comprised of the following: • the aggregate amount of all cash advances paid; • finance charges; • Dealer Holdback payments; • accelerated Dealer Holdback payments; and • recoveries. Less: • collections (net of certain collection costs); • write-offs; and • transfers. An allowance for credit losses is maintained at an amount that reduces the net asset value (Dealer Loan balance less the allowance) to the value of forecasted future cash flows discounted at the yield established at the time of assignment. This allowance calculation is completed for each individual Dealer. Future cash flows are comprised of estimated future collections on the Consumer Loans, less any estimated Dealer Holdback payments. We write off Dealer Loans once there are no forecasted future cash flows on any of the associated Consumer Loans, which generally occurs 120 months after the last Consumer Loan assignment. Future collections on Dealer Loans are forecasted for each individual Dealer based on the historical performance of Consumer Loans with similar characteristics, adjusted for recent trends in payment patterns. Dealer Holdback is forecasted for each individual Dealer based on the expected future collections and current advance balance of each Dealer Loan. Cash flows from any individual Dealer Loan are often different from estimated cash flows at the time of assignment. If such difference is favorable, the difference is recognized prospectively into income over the remaining life of the Dealer Loan through a yield adjustment. If such difference is unfavorable, a provision for credit losses is recorded immediately as a current period expense and a corresponding allowance for credit losses is established. Because differences between estimated cash flows at the time of assignment and actual cash flows occur often, an allowance is required for a significant portion of our Dealer Loan portfolio. An allowance for credit losses does not necessarily indicate that a Dealer Loan is unprofitable, and seldom are cash flows from a Dealer Loan insufficient to repay the initial amounts advanced to the Dealer. Purchased Loans . Amounts paid to Dealers for Consumer Loans assigned under the Purchase Program are recorded as Purchased Loans and are aggregated into pools based on the month of purchase for purposes of recognizing revenue and evaluating impairment. We account for Purchased Loans based on forecasted cash flows instead of contractual cash flows as we do not expect to collect all of the contractually specified amounts due to the credit quality of the assigned Consumer Loans. The outstanding balance of each Purchased Loan pool included in Loans receivable is comprised of the following: • the aggregate amount of all amounts paid during the month of purchase to purchase Consumer Loans from Dealers; • finance charges; • recoveries; and • transfers. Less: • collections (net of certain collection costs); and • write-offs. An allowance for credit losses is maintained at an amount that reduces the net asset value (Purchased Loan pool balance less the allowance) to the value of forecasted future cash flows discounted at the yield established at the time of assignment. This allowance calculation is completed for each individual monthly pool of Purchased Loans. Future cash flows are comprised of estimated future collections on the pool of Purchased Loans. We write off pools of Purchased Loans once there are no forecasted future cash flows on any of the Purchased Loans included in the pool, which generally occurs 120 months after the month of purchase. Future collections on Purchased Loans are forecasted for each individual pool based on the historical performance of Consumer Loans with similar characteristics, adjusted for recent trends in payment patterns. Cash flows from any individual pool of Purchased Loans are often different from estimated cash flows at the time of assignment. If such difference is favorable, the difference is recognized prospectively into income over the remaining life of the pool of Purchased Loans through a yield adjustment. If such difference is unfavorable, a provision for credit losses is recorded immediately as a current period expense and a corresponding allowance for credit losses is established. Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance to Purchased Loans in the period this forfeiture occurs. During the fourth quarter of 2017, we enhanced our accounting methodology for transferring loans. Beginning in the fourth quarter of 2017, we: • transfer the related Dealer Loan allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs; and • aggregate these Purchased Loans by Dealer for purposes of recognizing revenue and evaluating impairment. Prior to the fourth quarter of 2017, we: • reversed the Dealer Loan allowance for credit losses balance through Dealer Loan provision for credit losses and established a new allowance for credit losses in Purchased Loans through Purchased Loan provision for credit losses; and • aggregated these Purchased Loans by month of purchase for purposes of recognizing revenue and evaluating impairment. Credit Quality. Substantially all of the Consumer Loans assigned to us are made to individuals with impaired or limited credit histories or higher debt-to-income ratios than are permitted by traditional lenders. Consumer Loans made to these individuals generally entail a higher risk of delinquency, default and repossession and higher losses than loans made to consumers with better credit. Since most of our revenue and cash flows are generated from these Consumer Loans, our ability to accurately forecast Consumer Loan performance is critical to our business and financial results. At the time the Consumer Loan is submitted to us for assignment, we forecast future expected cash flows from the Consumer Loan. Based on these forecasts, an advance or one-time purchase payment is made to the related Dealer at a price designed to maximize economic profit, a non-GAAP financial measure that considers our return on capital, our cost of capital and the amount of capital invested. We monitor and evaluate the credit quality of Consumer Loans on a monthly basis by comparing our current forecasted collection rates to our initial expectations. We use a statistical model that considers a number of credit quality indicators to estimate the expected collection rate for each Consumer Loan at the time of assignment. The credit quality indicators considered in our model include attributes contained in the consumer’s credit bureau report, data contained in the consumer’s credit application, the structure of the proposed transaction, vehicle information and other factors. We continue to evaluate the expected collection rate of each Consumer Loan subsequent to assignment primarily through the monitoring of consumer payment behavior. Our evaluation becomes more accurate as the Consumer Loans age, as we use actual performance data in our forecast. Since all known, significant credit quality indicators have already been factored into our forecasts and pricing, we are not able to use any specific credit quality indicators to predict or explain variances in actual performance from our initial expectations. Any variances in performance from our initial expectations are the result of Consumer Loans performing differently than historical Consumer Loans with similar characteristics. We periodically adjust our statistical pricing model for new trends that we identify through our evaluation of these forecasted collection rate variances. When overall forecasted collection rates underperform our initial expectations, the decline in forecasted collections has a more adverse impact on the profitability of the Purchased Loans than on the profitability of the Dealer Loans. For Purchased Loans, the decline in forecasted collections is absorbed entirely by us. For Dealer Loans, the decline in the forecasted collections is substantially offset by a decline in forecasted payments of Dealer Holdback. Methodology Changes. During 2017, we enhanced our methodology for transferring Loans and updated our net cash flow timing model. For additional information regarding these methodology changes, see Note 5 to the consolidated financial statements. For the three year period ended December 31, 2019 , we did not make any other methodology changes for Loans that had a material impact on our financial statements. Property and Equipment Purchases of property and equipment are recorded at cost. Depreciation is provided on a straight-line basis over the estimated useful life of the asset. Estimated useful lives are generally as follows: buildings – 40 years , building improvements – 10 years , data processing equipment – 3 years , software – 5 years , office furniture and equipment – 7 years , and leasehold improvements – the lesser of the lease term or 7 years . The cost of assets sold or retired and the related accumulated depreciation are removed from the balance sheet at the time of disposition and any resulting gain or loss is included in operations. Maintenance, repairs and minor replacements are charged to operations as incurred; major replacements and improvements are capitalized. We evaluate long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Costs incurred during the application development stage of software developed for internal use are capitalized and generally depreciated on a straight-line basis over five years . Costs incurred to maintain existing software are expensed as incurred. For additional information regarding our property and equipment, see Note 6 to the consolidated financial statements. Deferred Debt Issuance Costs Deferred debt issuance costs associated with secured financings and senior notes are included as a deduction from the carrying amount of the related debt liability, and deferred debt issuance costs associated with our revolving secured line of credit are included in other assets. Expenses associated with the issuance of debt instruments are capitalized and amortized as interest expense over the term of the debt instrument using the effective interest method for asset-backed secured financings (“Term ABS”) and senior notes and the straight-line method for lines of credit and revolving secured warehouse (“Warehouse”) facilities. For additional information regarding deferred debt issuance costs, see Note 9 to the consolidated financial statements. Derivative Instruments We rely on various sources of financing, some of which contain floating rates of interest and expose us to risks associated with increases in interest rates. We manage such risk primarily by entering into interest rate cap agreements (“derivative instruments”). These derivative instruments are not designated as hedges, and changes in their fair value increase or decrease interest expense. We recognize derivative instruments as either other assets or accounts payable and accrued liabilities on our consolidated balance sheets. For additional information regarding our derivative instruments, see Note 10 to the consolidated financial statements. Finance Charges Finance charges is comprised of: (1) servicing fees earned as a result of servicing Consumer Loans assigned to us by Dealers under the Portfolio Program; (2) finance charge income from Purchased Loans; (3) fees earned from our third party ancillary product offerings; (4) monthly program fees charged to Dealers under the Portfolio Program; and (5) fees associated with certain Loans. We recognize finance charges under the interest method such that revenue is recognized on a level-yield basis based upon forecasted cash flows. For Dealer Loans only, certain direct origination costs such as salaries and credit reports are deferred and the net costs are recognized as an adjustment to finance charges over the life of the related Dealer Loan on a level-yield basis. We provide Dealers the ability to offer vehicle service contracts to consumers through our relationships with Third Party Providers (“TPPs”). A vehicle service contract provides the consumer protection by paying for the repair or replacement of certain components of the vehicle in the event of a mechanical failure. The retail price of the vehicle service contract is included in the principal balance of the Consumer Loan. The wholesale cost of the vehicle service contract is paid to the TPP, net of an administrative fee retained by us. We recognize our fee as part of finance charges on a level-yield basis based upon forecasted cash flows. The difference between the wholesale cost and the retail price to the consumer is paid to the Dealer as a commission. Under the Portfolio Program, the wholesale cost of the vehicle service contract and the commission paid to the Dealer are charged to the Dealer’s advance balance. TPPs process claims on vehicle service contracts that are underwritten by third party insurers. We bear the risk of loss for claims on certain vehicle service contracts that are reinsured by us. We market the vehicle service contracts directly to our Dealers. We provide Dealers the ability to offer Guaranteed Asset Protection (“GAP”) to consumers through our relationships with TPPs. GAP provides the consumer protection by paying the difference between the loan balance and the amount covered by the consumer’s insurance policy in the event of a total loss of the vehicle due to severe damage or theft. The retail price of GAP is included in the principal balance of the Consumer Loan. The wholesale cost of GAP is paid to the TPP, net of an administrative fee retained by us. We recognize our fee as part of finance charges on a level-yield basis based upon forecasted cash flows. The difference between the wholesale cost and the retail price to the consumer is paid to the Dealer as a commission. Under the Portfolio Program, the wholesale cost of GAP and the commission paid to the Dealer are charged to the Dealer’s advance balance. TPPs process claims on GAP contracts that are underwritten by third party insurers. Program fees represent monthly fees charged to Dealers for access to our Credit Approval Processing System (“CAPS”); administration, servicing and collection services offered by us; documentation related to or affecting our program; and all tangible and intangible property owned by Credit Acceptance. We charge a monthly fee of $ 599 to Dealers participating in our Portfolio Program and we collect it from future Dealer Holdback payments. As a result, we record program fees under the Portfolio Program as a yield adjustment, recognizing these fees as finance charge revenue over the forecasted net cash flows of the Dealer Loan. Reinsurance VSC Re, our wholly-owned subsidiary, is engaged in the business of reinsuring coverage under vehicle service contracts sold to consumers by Dealers on vehicles financed by us. VSC Re currently reinsures vehicle service contracts that are offered through one of our TPPs. Vehicle service contract premiums, which represent the selling price of the vehicle service contract to the consumer, less fees and certain administrative costs, are contributed to a trust account controlled by VSC Re. These premiums are used to fund claims covered under the vehicle service contracts. VSC Re is a bankruptcy remote entity. As such, our exposure to fund claims is limited to the trust assets controlled by VSC Re and our net investment in VSC Re. Premiums from the reinsurance of vehicle service contracts are recognized over the life of the policy in proportion to expected costs of servicing those contracts. Expected costs are determined based on our historical claims experience. Claims are expensed through a provision for claims in the period the claim was incurred. Capitalized acquisition costs are comprised of premium taxes and are amortized as general and administrative expense over the life of the contracts in proportion to premiums earned. We have consolidated the trust within our financial statements based on our determination of the following: • We have a variable interest in the trust. We have a residual interest in the assets of the trust, which is variable in nature, given that it increases or decreases based upon the actual loss experience of the related service contracts. In addition, VSC Re is required to absorb any losses in excess of the trust's assets. • The trust is a variable interest entity. The trust has insufficient equity at risk as no parties to the trust were required to contribute assets that provide them with any ownership interest. • We are the primary beneficiary of the trust. We control the amount of premiums written and placed in the trust through Consumer Loan assignments under our Programs, which is the activity that most significantly impacts the economic performance of the trust. We have the right to receive benefits from the trust that could potentially be significant. In addition, VSC Re has the obligation to absorb losses of the trust that could potentially be significant. Stock-Based Compensation Plans We have stock-based compensation plans for team members and non-employee directors, which are described more fully in Note 14 to the consolidated financial statements. We apply a fair-value-based measurement method in accounting for stock-based compensation plans and recognize stock-based compensation expense over the requisite service period of the grant as salaries and wages expense. Employee Benefit Plan We sponsor a 401(k) plan that covers substantially all of our team members. We offer matching contributions to the 401(k) plan based on each enrolled team members’ eligible annual gross pay (subject to statutory limitations). Our matching contribution rate is equal to 100% of the first 4% participants contribute and an additional 50% of the next 2% participants contribute, for a maximum matching contribution of 5% of each participant’s eligible annual gross pay. For the years ended December 31, 2019 , 2018 and 2017 , we recognized compensation expense of $ 7.1 million , $ 5.3 million , and $ 4.6 million , respectively, for our matching contributions to the plan. Income Taxes Provisions for federal, state and foreign income taxes are calculated on reported pre-tax earnings based on current tax law and also include, in the current period, the cumulative effect of any changes in tax rates from those used previously in determining deferred tax assets and liabilities. Such provisions differ from the amounts currently receivable or payable because certain items of income and expense are recognized in different time periods for financial reporting purposes than for income tax purposes. Deferred income tax balances reflect the effects of temporary differences between the carrying amounts of assets and liabilities and their tax bases and are stated at enacted tax rates expected to be in effect when taxes are actually paid or recovered. We follow a two-step approach for recognizing uncertain tax positions. First, we evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more-likely-than-not that the position will be sustained upon examination, including resolution of related appeals or litigation processes, if any. Second, for positions that we determine are more-likely-than-not to be sustained, we recognize the tax benefit as the largest benefit that has a greater than 50% likelihood of being sustained. We establish a reserve for uncertain tax positions liability that is comprised of unrecognized tax benefits and related interest. We consider many factors when evaluating and estimating our tax positions and tax benefits, which may require periodic adjustments and which may not accurately anticipate actual outcomes. We recognize interest and penalties related to uncertain tax positions in provision for income taxes. For additional information regarding our income taxes, see Note 11 to the consolidated financial statements. Advertising Costs Advertising costs are expensed as incurred. Advertising expenses were $ 0.3 million for the year ended December 31, 2019 , $0.2 million for the year ended December 31, 2018 and $0.4 million for the year ended December 31, 2017 . New Accounting Update Adopted During the Current Year Leases. In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, which required lessees to recognize a right-of-use asset and related lease liability for leases classified as operating leases at the commencement date that have lease terms of more than 12 months. This ASU retains the classification distinction between finance leases and operating leases. The standard required application using a retrospective transition method. Our population of leases consists of operating leases for office space and office equipment. The adoption of ASU 2016-02 on January 1, 2019 required us to record a $2.7 million right-of-use asset and a $2.8 million lease liability on our consolidated balance sheets as of December 31, 2019. The right-of-use asset and the lease liability were recognized within other assets and accounts payable and accrued liabilities, respectively, in our consolidated balance sheets. The adoption of ASU 2016-02 did not materially change the recognition of operating lease expense in our consolidated statements of income. New Accounting Updates Not Yet Adopted Accounting for Costs of Implementing Cloud Computing. In August 2018, the FASB issued ASU 2018-15, which reduces complexity in the accounting for costs of implementing a cloud computing service arrangement. This standard aligns the accounting for implementation costs of hosting arrangements, regardless of whether they convey a license to the hosted software. Under the current guidance, the classification of an arrangement as either a software license or a service contract determines whether or not we capitalize implementation costs. If an arrangement meets the definition of a software license, implementation costs are capitalized. If an arrangement meets the definition of a service contract, implementation costs are expensed as incurred. Under the new guidance, implementation costs will be capitalized regardless of their classification. ASU 2018-15 is effective for fiscal years, and interim periods, beginning after December 15, 2019. Early application is permitted, but we have not yet adopted ASU 2018-15. The adoption of ASU 2018-15 will change how we account for our cloud computing arrangements. However, we do not believe that its adoption will have a material impact on our consolidated financial statements and related disclosures. Measurement of Credit Losses on Financial Instruments. In June 2016, the FASB issued ASU 2016-13, which included an impairment model (known as the current expected credit loss (“CECL”) model) that is based on expected losses rather than incurred losses. Under the new guidance, an entity recognizes an allowance for credit losses based on the difference between contractual future net cash flows and its estimate of expected future net cash flows. The new guidance also changes the scope of the special accounting for loans acquired with significant credit deterioration. ASU 2016-13 is effective for fiscal years, and interim periods, beginning after December 15, 2019. Early application is permitted, but we have not yet adopted ASU 2016-13. We believe the adoption of ASU 2016-13 will have a material impact on our consolidated financial statements and related disclosures as it will change our accounting policies for Loans. Application of CECL to Existing Loans We believe that Loans outstanding prior to the adoption date will qualify for transition relief under ASU 2016-13 and will be accounted for as purchased financial assets with credit deterioration (“PCD Method”). Under the PCD Method, on the adoption date, we will: • calculate an effective interest rate based on expected future net cash flows; and • increase the Loans receivable and related allowance for credit losses balances by the present value of the difference between contractual future net cash flows and expected future net cash flows discounted at the effective interest rate. This “gross-up” will not impact the net carrying amount of Loans (Loans receivable less allowance for credit losses) or net income. For each reporting period subsequent to adoption, we will: • recognize finance charge revenue using the effective interest rate that was calculated on the adoption date based on expected future net cash flows; and • adjust the allowance for credit losses so that the net carrying amount of each Loan equals the present value of expected future net cash flows discounted at the effective interest rate. The adjustment to the allowance for credit losses will be recognized as either provision for credit losses expense or a reversal of provision for credit losses expense. Application of CECL to Future Loans We believe that Consumer Loans assigned subsequent to the adoption of ASU 2016-13 will not qualify for the PCD Method and will be accounted for as originated financial assets (“Originated Method”). While the cash flows we expect to collect at the time of assignment are significantly lower than the contractual cash flows owed to us due to credit quality, our Loans do not qualify for the PCD Method because the assignment of the Consumer Loan occurs a moment after the Consumer Loan is originated by the Dealer, so “a more-than-insignificant deterioration in credit quality since origination” has not occurred. In addition, Dealer Loans also do not qualify for the PCD Method because Consumer Loans assigned under the Portfolio Program are considered to be advances under Dealer Loans originated by us rather than Consumer Loans purchased by us. Under the Originated Method, at the time of assignment, we will: • calculate the effective interest rate based on contractual future net cash flows; • record a Loan receivable equal to the advance paid to the Dealer under the Portfolio Program or purchase price paid to the Dealer under the Purchase Program; and • record an allowance for credit losses equal to the difference between the initial Loan receivable balance and the present value of expected future net cash flows discounted at the effective interest rate. The initial allowance for credit losses will be recognized as provision for credit losses expense. For each reporting period subsequent to assignment, we will: • recognize finance charge revenue using the effective interest rate that was calculated at the time of assignment based on contractual future net cash flows; and • adjust the allowance for credit losses so that the net carrying amount of each Loan equals the present value of expected future net cash f

Fair Value Of Financial Instrum

Fair Value Of Financial Instruments	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Of Financial Instruments	FAIR VALUE OF FINANCIAL INSTRUMENTS The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate their value. Cash and Cash Equivalents and Restricted Cash and Cash Equivalents. The carrying amounts approximate their fair value due to the short maturity of these instruments. Restricted Securities Available for Sale. The fair value of U.S. Government and agency securities and corporate bonds is based on quoted market values in active markets. For asset-backed securities, mortgage-backed securities and commercial paper we use model-based valuation techniques for which all significant assumptions are observable in the market. Loans Receivable, net. The fair value is determined by calculating the present value of expected future net cash flows estimated by us utilizing a discount rate comparable with the rate used to calculate the value of our Loans under our non-GAAP floating yield methodology. Revolving Secured Line of Credit. The fair value is determined by calculating the present value of the debt instrument based on current rates for debt with a similar risk profile and maturity. Secured Financing. The fair value of our Term ABS financings is determined using quoted market prices; however, these instruments trade in a market with a low trading volume. For our warehouse facilities, the fair values are determined by calculating the present value of each debt instrument based on current rates for debt with similar risk profiles and maturities. Senior Notes. The fair value is determined using quoted market prices in an active market. Mortgage Note. The fair value is determined by calculating the present value of the debt instrument based on current rates for debt with a similar risk profile and maturity. A comparison of the carrying amount and estimated fair value of these financial instruments is as follows: (In millions) As of December 31, 2019 2018 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Assets Cash and cash equivalents $ 187.4 $ 187.4 $ 25.7 $ 25.7 Restricted cash and cash equivalents 330.3 330.3 303.6 303.6 Restricted securities available for sale 59.3 59.3 58.6 58.6 Loans receivable, net 6,685.2 6,777.2 5,763.3 5,855.1 Liabilities Revolving secured line of credit $ — $ — $ 171.9 $ 171.9 Secured financing 3,339.7 3,397.5 3,092.7 3,100.9 Senior notes 1,187.8 1,257.6 544.4 556.3 Mortgage note 11.3 11.3 11.9 11.9 Fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. We group assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are: Level 1 Valuation is based upon quoted prices for identical instruments traded in active markets. Level 2 Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 3 Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates or assumptions that market participants would use in pricing the asset or liability. The following table provides the level of measurement used to determine the fair value for each of our financial instruments measured or disclosed at fair value: (In millions) As of December 31, 2019 Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents (1) $ 187.4 $ — $ — $ 187.4 Restricted cash and cash equivalents (1) 330.3 — — 330.3 Restricted securities available for sale (2) 47.5 11.8 — 59.3 Loans receivable, net (1) — — 6,777.2 6,777.2 Liabilities Revolving secured line of credit (1) $ — $ — $ — $ — Secured financing (1) — 3,397.5 — 3,397.5 Senior notes (1) 1,257.6 — — 1,257.6 Mortgage note (1) — 11.3 — 11.3 (In millions) As of December 31, 2018 Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents (1) $ 25.7 $ — $ — $ 25.7 Restricted cash and cash equivalents (1) 303.6 — — 303.6 Restricted securities available for sale (2) 47.9 10.7 — 58.6 Loans receivable, net (1) — — 5,855.1 5,855.1 Liabilities Revolving secured line of credit (1) $ — $ 171.9 $ — $ 171.9 Secured financing (1) — 3,100.9 — 3,100.9 Senior notes (1) 556.3 — — 556.3 Mortgage note (1) — 11.9 — 11.9 (1) Measured at amortized cost with fair value disclosed. (2) Measured at fair value on a recurring basis.

Restricted Securities Available

Restricted Securities Available For Sale	12 Months Ended
	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Restricted Securities Available For Sale	RESTRICTED SECURITIES AVAILABLE FOR SALE Restricted securities available for sale consist of the following: (In millions) As of December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 25.3 $ 0.5 $ — $ 25.8 U.S. Government and agency securities 21.3 0.4 — 21.7 Asset-backed securities 11.2 0.1 — 11.3 Mortgage-backed securities 0.5 — — 0.5 Total restricted securities available for sale $ 58.3 $ 1.0 $ — $ 59.3 (In millions) As of December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 23.4 $ — $ (0.2 ) $ 23.2 U.S. Government and agency securities 24.8 0.1 (0.2 ) 24.7 Asset-backed securities 9.4 — (0.1 ) 9.3 Mortgage-backed securities 1.4 — — 1.4 Total restricted securities available for sale $ 59.0 $ 0.1 $ (0.5 ) $ 58.6 The fair value and gross unrealized losses for restricted securities available for sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows: (In millions) Securities Available for Sale with Gross Unrealized Losses as of December 31, 2019 Less than 12 Months 12 Months or More Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Total Estimated Fair Value Total Gross Unrealized Losses Corporate bonds $ 1.4 $ — $ — $ — $ 1.4 $ — U.S. Government and agency securities 1.9 — — — 1.9 — Asset-backed securities 1.9 — — — 1.9 — Mortgage-backed securities — — — — — — Total restricted securities available for sale $ 5.2 $ — $ — $ — $ 5.2 $ — (In millions) Securities Available for Sale with Gross Unrealized Losses as of December 31, 2018 Less than 12 Months 12 Months or More Estimated Gross Estimated Gross Total Estimated Total Gross Corporate bonds $ 12.0 $ (0.1 ) $ 6.5 $ (0.1 ) $ 18.5 $ (0.2 ) U.S. Government and agency securities 2.2 — 10.5 (0.2 ) 12.7 (0.2 ) Asset-backed securities 4.7 — 3.3 (0.1 ) 8.0 (0.1 ) Mortgage-backed securities — — 1.4 — 1.4 — Total restricted securities available for sale $ 18.9 $ (0.1 ) $ 21.7 $ (0.4 ) $ 40.6 $ (0.5 ) The cost and estimated fair values of debt securities by contractual maturity were as follows (securities with multiple maturity dates are classified in the period of final maturity). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. (In millions) As of December 31, 2019 2018 Contractual Maturity Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Within one year $ 5.7 $ 5.7 $ 1.7 $ 1.7 Over one year to five years 50.8 51.8 55.1 54.7 Over five years to ten years 1.5 1.5 0.8 0.8 Over ten years 0.3 0.3 1.4 1.4 Total restricted securities available for sale $ 58.3 $ 59.3 $ 59.0 $ 58.6

Loans Receivable

Loans Receivable	12 Months Ended
	Dec. 31, 2019
Receivables [Abstract]
Loans Receivable	LOANS RECEIVABLE Loans receivable consists of the following: (In millions) As of December 31, 2019 Dealer Loans Purchased Loans Total Loans receivable $ 4,623.3 $ 2,597.9 $ 7,221.2 Allowance for credit losses (428.0 ) (108.0 ) (536.0 ) Loans receivable, net $ 4,195.3 $ 2,489.9 $ 6,685.2 (In millions) As of December 31, 2018 Dealer Loans Purchased Loans Total Loans receivable $ 4,141.0 $ 2,084.2 $ 6,225.2 Allowance for credit losses (378.1 ) (83.8 ) (461.9 ) Loans receivable, net $ 3,762.9 $ 2,000.4 $ 5,763.3 A summary of changes in Loans receivable is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Balance, beginning of period $ 4,141.0 $ 2,084.2 $ 6,225.2 New Consumer Loan assignments (1) 2,424.5 1,347.7 3,772.2 Principal collected on Loans receivable (2,049.4 ) (921.8 ) (2,971.2 ) Accelerated Dealer Holdback payments 58.8 — 58.8 Dealer Holdback payments 138.5 — 138.5 Transfers (2) (87.2 ) 87.2 — Write-offs (4.4 ) (0.5 ) (4.9 ) Recoveries (3) 1.5 1.1 2.6 Balance, end of period $ 4,623.3 $ 2,597.9 $ 7,221.2 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Balance, beginning of period $ 3,518.1 $ 1,530.9 $ 5,049.0 New Consumer Loan assignments (1) 2,414.8 1,181.0 3,595.8 Principal collected on Loans receivable (1,873.0 ) (703.7 ) (2,576.7 ) Accelerated Dealer Holdback payments 52.6 — 52.6 Dealer Holdback payments 128.9 — 128.9 Transfers (2) (78.2 ) 78.2 — Write-offs (25.2 ) (3.4 ) (28.6 ) Recoveries (3) 3.0 1.2 4.2 Balance, end of period $ 4,141.0 $ 2,084.2 $ 6,225.2 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Balance, beginning of period $ 3,209.0 $ 998.0 $ 4,207.0 New Consumer Loan assignments (1) 1,968.3 904.8 2,873.1 Principal collected on Loans receivable (1,729.9 ) (459.6 ) (2,189.5 ) Accelerated Dealer Holdback payments 47.1 — 47.1 Dealer Holdback payments 131.6 — 131.6 Transfers (2) (93.1 ) 93.1 — Write-offs (16.4 ) (5.7 ) (22.1 ) Recoveries (3) 1.5 0.3 1.8 Balance, end of period $ 3,518.1 $ 1,530.9 $ 5,049.0 (1) The Dealer Loans amount represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program. The Purchased Loans amount represents one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program. (2) Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs. (3) Represents collections received on previously written off Loans. During the fourth quarter of 2017, we transferred $89.0 million of Dealer Loans along with the related allowance for credit losses balance of $31.8 million to Purchased Loans. Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. Substantially all of these transfers relate to Dealers where events had occurred in prior periods that met our criteria for forfeiture. However, while we intended to exercise our rights to Dealer Holdback in the period the forfeiture event occurred, we did not exercise our rights for these Dealers until the fourth quarter of 2017. We also enhanced our accounting methodology for transferring Loans. In the fourth quarter of 2017, we began transferring the related allowance for credit losses balance to Purchased Loans. Prior to the fourth quarter of 2017, rather than transferring the related allowance for credit losses balance to Purchased Loans, we reversed the balance through Dealer Loan provision for credit losses and established a new allowance for credit losses in Purchased Loans through Purchased Loan provision for credit losses. Contractual net cash flows are comprised of the contractual repayments of the underlying Consumer Loans for Dealer Loans and Purchased Loans, less the related Dealer Holdback payments for Dealer Loans. The difference between the contractual net cash flows and the expected net cash flows is referred to as the nonaccretable difference. This difference is neither accreted into income nor recorded in our balance sheets. We do not believe that the contractual net cash flows of our Loan portfolio are relevant in assessing our financial position. We are contractually owed repayments on many Consumer Loans, primarily those older than 120 months , where we are not forecasting any future net cash flows. The excess of expected net cash flows over the outstanding balance of Loans receivable, net is referred to as the accretable yield and is recognized on a level-yield basis as finance charge income over the remaining lives of the Loans. A summary of changes in the accretable yield is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Balance, beginning of period $ 1,283.0 $ 782.5 $ 2,065.5 New Consumer Loan assignments (1) 971.6 561.2 1,532.8 Accretion (2) (897.5 ) (480.7 ) (1,378.2 ) Provision for credit losses 65.9 10.5 76.4 Forecast changes (7.9 ) 22.5 14.6 Transfers (3) (33.3 ) 42.2 8.9 Balance, end of period $ 1,381.8 $ 938.2 $ 2,320.0 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Balance, beginning of period $ 1,088.6 $ 576.9 $ 1,665.5 New Consumer Loan assignments (1) 990.2 488.4 1,478.6 Accretion (2) (816.3 ) (369.3 ) (1,185.6 ) Provision for credit losses 48.0 8.9 56.9 Forecast changes 2.0 40.3 42.3 Transfers (3) (29.5 ) 37.3 7.8 Balance, end of period $ 1,283.0 $ 782.5 $ 2,065.5 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Balance, beginning of period $ 982.6 $ 348.1 $ 1,330.7 New Consumer Loan assignments (1) 803.0 377.9 1,180.9 Accretion (2) (766.6 ) (253.6 ) (1,020.2 ) Provision for credit losses 103.4 25.9 129.3 Forecast changes (5.6 ) 41.7 36.1 Transfers (3) (28.2 ) 36.9 8.7 Balance, end of period $ 1,088.6 $ 576.9 $ 1,665.5 (1) The Dealer Loans amount represents the net cash flows expected at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related advances paid to Dealers. The Purchased Loans amount represents the net cash flows expected at the time of assignment on Consumer Loans assigned under our Purchase Program, less the related one-time payments made to Dealers. (2) Represents finance charges excluding the amortization of deferred direct origination costs for Dealer Loans. (3) Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance, the related allowance for credit losses balance and related expected future net cash flows to Purchased Loans in the period this forfeiture occurs. Additional information related to new Consumer Loan assignments is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Contractual net cash flows at the time of assignment (1) $ 3,810.6 $ 2,953.3 $ 6,763.9 Expected net cash flows at the time of assignment (2) 3,396.1 1,908.9 5,305.0 Fair value at the time of assignment (3) 2,424.5 1,347.7 3,772.2 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Contractual net cash flows at the time of assignment (1) $ 3,827.4 $ 2,610.7 $ 6,438.1 Expected net cash flows at the time of assignment (2) 3,405.0 1,669.4 5,074.4 Fair value at the time of assignment (3) 2,414.8 1,181.0 3,595.8 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Contractual net cash flows at the time of assignment (1) $ 3,131.6 $ 1,973.7 $ 5,105.3 Expected net cash flows at the time of assignment (2) 2,771.3 1,282.7 4,054.0 Fair value at the time of assignment (3) 1,968.3 904.8 2,873.1 (1) The Dealer Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we would be required to make if we collected all of the contractual repayments. The Purchased Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Purchase Program. (2) The Dealer Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we expected to make. The Purchased Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Purchase Program. (3) The Dealer Loans amount represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program. The Purchased Loans amount represents one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program. Credit Quality We monitor and evaluate the credit quality of Consumer Loans assigned under our Portfolio and Purchase Programs on a monthly basis by comparing our current forecasted collection rates to our initial expectations. For additional information regarding credit quality, see Note 2 to the consolidated financial statements. The following table compares our forecast of Consumer Loan collection rates as of December 31, 2019 , with the forecasts as of December 31, 2018 , as of December 31, 2017 , and at the time of assignment, segmented by year of assignment: Forecasted Collection Percentage as of (1) Current Forecast Variance from Consumer Loan Assignment Year December 31, 2019 December 31, 2018 December 31, 2017 Initial Forecast December 31, 2018 December 31, 2017 Initial Forecast 2010 77.8 % 77.7 % 77.6 % 73.6 % 0.1 % 0.2 % 4.2 % 2011 74.8 % 74.7 % 74.7 % 72.5 % 0.1 % 0.1 % 2.3 % 2012 73.9 % 73.8 % 73.8 % 71.4 % 0.1 % 0.1 % 2.5 % 2013 73.5 % 73.5 % 73.5 % 72.0 % 0.0 % 0.0 % 1.5 % 2014 71.7 % 71.7 % 71.7 % 71.8 % 0.0 % 0.0 % -0.1 % 2015 65.4 % 65.4 % 65.5 % 67.7 % 0.0 % -0.1 % -2.3 % 2016 64.1 % 64.2 % 64.8 % 65.4 % -0.1 % -0.7 % -1.3 % 2017 64.8 % 65.5 % 65.6 % 64.0 % -0.7 % -0.8 % 0.8 % 2018 65.1 % 65.0 % — 63.6 % 0.1 % — 1.5 % 2019 64.6 % — — 64.0 % — — 0.6 % (1) Represents the total forecasted collections we expect to collect on the Consumer Loans as a percentage of the repayments that we were contractually owed on the Consumer Loans at the time of assignment. Contractual repayments include both principal and interest. Forecasted collection rates are negatively impacted by canceled Consumer Loans as the contractual amount owed is not removed from the denominator for purposes of computing forecasted collection rates in the table. Consumer Loans assigned in 2010 through 2013 and 2018 have yielded forecasted collection results materially better than our initial estimates, while Consumer Loans assigned in 2015 and 2016 have yielded forecasted collection results materially worse than our initial estimates. For Consumer Loans assigned in 2014, 2017 and 2019, actual results have been close to our initial estimates. For the year ended December 31, 2019 , forecasted collection rates improved for Consumer Loans assigned in 2019, declined for Consumer Loans assigned in 2017 and were generally consistent with expectations at the start of the period for all other assignment years presented. For the year ended December 31, 2018 , forecasted collection rates improved for Consumer Loans assigned in 2018, declined for Consumer Loans assigned in 2016 and were generally consistent with expectations at the start of the period for all other assignment years presented. In addition to the statistical model used to forecast collection rates, we use a model to forecast the timing of future net cash flows. During the fourth quarter of 2017, we updated our net cash flow timing model to incorporate more recent data. The revised forecast resulted in an expected cash flow stream with a lower net present value as compared to the prior forecast, as less cash flows were expected in earlier periods and more cash flows were expected in later periods. The reduction in net present value was primarily the result of a change in the expected timing of cash flows from longer-term Consumer Loans. Due to our limited historical experience with longer-term Consumer Loans, our prior model relied on extrapolations from the historical performance of shorter-term Consumer Loans to predict the timing of future net cash flows on longer-term Consumer Loans. We used our additional historical experience on these longer-term loans to refine our estimate. The revision to our net cash flow timing forecast did not impact the amount of undiscounted net cash flows we expected to receive. As a result, the dollar amount of future net portfolio revenue (finance charges less provision for credit losses) was not impacted by the revision. However, the revision did impact the period in which those net revenues are recorded as a portion of the impact of the revised timing estimate was recorded as a current period expense and a portion was recorded as a yield adjustment. For the fourth quarter of 2017, the revision increased provision for credit losses by $41.6 million , reduced finance charge revenue by $7.3 million and reduced net income by $30.8 million . The revision reduced the yield on our Loan portfolio by 90 basis points , which impacts the timing of revenue recognition in future periods. Advances paid to Dealers on Consumer Loans assigned under our Portfolio Program and one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program are aggregated into pools for purposes of recognizing revenue and evaluating impairment. As a result of this aggregation, we are not able to segment the carrying amounts of the majority of our Loan portfolio by year of assignment. We are able to segment our Loan portfolio by the performance of the Loan pools. Performance considers both the amount and timing of expected net cash flows and is measured by comparing the balance of the Loan pool to the discounted value of the expected future net cash flows of each Loan pool using the yield established at the time of assignment. The following table segments our Loan portfolio by the performance of the Loan pools: (In millions) As of December 31, 2019 Loan Pool Performance Meets or Exceeds Initial Estimates Loan Pool Performance Less than Initial Estimates Dealer Purchased Loans Total Dealer Purchased Loans Total Loans receivable $ 1,591.3 $ 2,006.9 $ 3,598.2 $ 3,032.0 $ 591.0 $ 3,623.0 Allowance for credit losses — — — (428.0 ) (108.0 ) (536.0 ) Loans receivable, net $ 1,591.3 $ 2,006.9 $ 3,598.2 $ 2,604.0 $ 483.0 $ 3,087.0 (In millions) As of December 31, 2018 Loan Pool Performance Meets or Exceeds Initial Estimates Loan Pool Performance Less than Initial Estimates Dealer Purchased Loans Total Dealer Purchased Loans Total Loans receivable $ 1,355.1 $ 1,392.1 $ 2,747.2 $ 2,785.9 $ 692.1 $ 3,478.0 Allowance for credit losses — — — (378.1 ) (83.8 ) (461.9 ) Loans receivable, net $ 1,355.1 $ 1,392.1 $ 2,747.2 $ 2,407.8 $ 608.3 $ 3,016.1 A summary of changes in the allowance for credit losses is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Balance, beginning of period $ 378.1 $ 83.8 $ 461.9 Provision for credit losses 65.9 10.5 76.4 Transfers (1) (13.1 ) 13.1 — Write-offs (4.4 ) (0.5 ) (4.9 ) Recoveries (2) 1.5 1.1 2.6 Balance, end of period $ 428.0 $ 108.0 $ 536.0 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Balance, beginning of period $ 366.0 $ 63.4 $ 429.4 Provision for credit losses 48.0 8.9 56.9 Transfers (1) (13.7 ) 13.7 — Write-offs (25.2 ) (3.4 ) (28.6 ) Recoveries (2) 3.0 1.2 4.2 Balance, end of period $ 378.1 $ 83.8 $ 461.9 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Balance, beginning of period $ 309.3 $ 11.1 $ 320.4 Provision for credit losses 103.4 25.9 129.3 Transfers (1) (31.8 ) 31.8 — Write-offs (16.4 ) (5.7 ) (22.1 ) Recoveries (2) 1.5 0.3 1.8 Balance, end of period $ 366.0 $ 63.4 $ 429.4 (1) Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs. (2) Represents collections received on previously written off Loans.

Property And Equipment

Property And Equipment	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Property And Equipment	PROPERTY AND EQUIPMENT Property and equipment consists of the following: (In millions) As of December 31, 2019 2018 Land and land improvements $ 2.7 $ 2.7 Building and improvements 54.5 33.2 Data processing equipment and software 41.3 37.3 Office furniture and equipment 3.9 3.8 Leasehold improvements 2.4 2.2 Total property and equipment 104.8 79.2 Less: Accumulated depreciation on property and equipment (45.1 ) (39.0 ) Total property and equipment, net $ 59.7 $ 40.2 Depreciation expense on property and equipment was $ 7.3 million , $ 5.4 million and $ 6.0 million for the years ended December 31, 2019 , 2018 and 2017 , respectively.

Reinsurance

Reinsurance	12 Months Ended
	Dec. 31, 2019
Reinsurance [Abstract]
Reinsurance	REINSURANCE A summary of reinsurance activity is as follows: (In millions) For the Years Ended December 31, 2019 2018 2017 Net assumed written premiums $ 51.8 $ 55.8 $ 42.4 Net premiums earned 51.0 46.6 41.1 Provision for claims 30.1 26.0 22.7 Amortization of capitalized acquisition costs 1.3 1.2 1.0 The trust assets and related reinsurance liabilities are as follows: (In millions) As of December 31, Balance Sheet location 2019 2018 Trust assets Restricted cash and cash equivalents $ 0.9 $ 0.3 Trust assets Restricted securities available for sale 59.3 58.6 Unearned premium Accounts payable and accrued liabilities 44.1 43.3 Claims reserve (1) Accounts payable and accrued liabilities 1.8 1.6 (1) The claims reserve represents our liability for incurred-but-not-reported claims and is estimated based on historical claims experience. The following tables present information about incurred and paid claims development for the five-year period ended December 31, 2019 : (Dollars in millions) Cumulative Incurred Claims As of December 31, 2019 Incident Year As of December 31, Claims Reserve Cumulative Number of Reported Claims 2015 2016 2017 2018 2019 2015 $ 33.1 $ 33.4 $ 33.4 $ 33.4 $ 33.4 $ — 32,909 2016 25.7 26.0 26.0 26.0 — 25,215 2017 22.3 22.5 22.6 — 20,461 2018 25.8 25.7 — 22,305 2019 30.1 1.8 23,480 Total $ 137.8 $ 1.8 124,370 (In millions) Cumulative Paid Claims As of December 31, Incident Year 2015 2016 2017 2018 2019 2015 $ 31.9 $ 33.4 $ 33.4 $ 33.4 $ 33.4 2016 24.7 26.0 26.0 26.0 2017 21.3 22.5 22.6 2018 24.2 25.7 2019 28.3 Total $ 136.0 Average Annual Percentage Payout of Incurred Claims by Age Claim Age (Years) 1 2 3 4 5 Payout Percentage 94.7 % 5.2 % 0.1 % — % — %

Other Income

Other Income	12 Months Ended
	Dec. 31, 2019
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]	OTHER INCOME Other income consists of the following: For the Years Ended December 31, (In millions) 2019 2018 2017 Ancillary product profit sharing $ 37.9 $ 30.6 $ 23.9 Remarketing fees 12.0 11.2 10.9 Interest 8.5 5.0 2.2 Dealer enrollment fees 4.7 4.3 3.9 Dealer support products and services 2.5 4.1 4.8 GPS-SID fees 1.9 6.4 11.1 Other 1.1 0.8 0.6 Total $ 68.6 $ 62.4 $ 57.4 Ancillary product profit sharing consists of payments received from Third Party Providers (“TPPs”) based upon the performance of vehicle service contracts and Guaranteed Asset Protection (“GAP”) contracts, and is recognized as income over the life of the vehicle service contracts and GAP contracts. Remarketing fees consist of fees retained from the sale of repossessed vehicles by Vehicle Remarketing Services, Inc. (“VRS”), our wholly-owned subsidiary that is responsible for remarketing vehicles for Credit Acceptance. VRS coordinates vehicle repossessions with a nationwide network of repossession contractors, the redemption of the vehicles by the consumers, and the sale of the vehicles through a nationwide network of vehicle auctions. VRS recognizes income from the retained fees at the time of the sale and does not retain a fee if a repossessed vehicle is redeemed by the consumer prior to the sale. Interest consists of income earned on cash and cash equivalents, restricted cash and cash equivalents, and restricted securities available for sale. Interest income is generally recognized over time as it is earned. Interest income on restricted securities available for sale is recognized over the life of the underlying financial instruments using the interest method. Dealer enrollment fees include fees from Dealers that enrolled in our Portfolio Program prior to August 5, 2019. Depending on the enrollment option selected by the Dealer, Dealers may have enrolled by paying us an upfront, one-time fee, or by agreeing to allow us to retain 50% of their accelerated Dealer Holdback payment(s) on the first 100 Consumer Loan assignments. For additional information regarding program enrollment, see Note 2 to the consolidated financial statements. A portion of the $9,850 upfront, one-time fee is considered to be Dealer support products and services revenue. The remaining portion of the $9,850 fee is considered to be a Dealer enrollment fee, which is amortized on a straight-line basis over the estimated life of the Dealer relationship. The 50% portion of the accelerated Dealer Holdback payment(s) on the first 100 Consumer Loan assignments is also considered to be a Dealer enrollment fee. We do not recognize any of this Dealer enrollment fee until the Dealer has met the eligibility requirements to receive an accelerated Dealer Holdback payment and the amount of the first payment, if any, has been calculated. Once an accelerated Dealer Holdback payment has been calculated, we defer the 50% portion that we keep and recognize it on a straight-line basis over the remaining estimated life of the Dealer relationship. Beginning August 5, 2019, Dealers may enroll in our Portfolio Program without incurring an enrollment fee. Dealer support products and services consist of income earned from products and services provided to Dealers to assist with their operations, including sales and marketing, purchasing supplies and materials and acquiring vehicle inventory. Income is recognized in the period the product or service is provided. GPS-SID fees consist of fees we received from a TPP for providing Dealers in certain states the ability to purchase GPS Starter Interrupt Devices ("GPS-SID"). Through this program, Dealers could install GPS-SID on vehicles financed by us that can be activated if the consumer fails to make payments on their account, and can result in the prompt repossession of the vehicle. Dealers purchased GPS-SID directly from the TPP and the TPP paid us a vendor fee for each device sold. GPS-SID fee income was recognized when the units were sold. Effective during the second quarter of 2019, we no longer provide Dealers the ability to purchase GPS-SID through this program. We allowed Dealers to install previously purchased GPS-SID on vehicles financed by us until September 1, 2019. The following table disaggregates our other income by major source of income and timing of the revenue recognition: (In millions) For the Year Ended December 31, 2019 Ancillary product profit sharing Remarketing fees Interest Dealer enrollment fees Dealer support products and services GPS-SID fees Other Total Other Income Source of income Third Party Providers $ 37.9 $ — $ 8.5 $ — $ — $ 1.9 $ 1.1 $ 49.4 Dealers — 12.0 — 4.7 2.5 — — 19.2 Total $ 37.9 $ 12.0 $ 8.5 $ 4.7 $ 2.5 $ 1.9 $ 1.1 $ 68.6 Timing of revenue recognition Over time $ 37.9 $ — $ 8.5 $ 4.7 $ — $ — $ — $ 51.1 At a point in time — 12.0 — — 2.5 1.9 1.1 17.5 Total $ 37.9 $ 12.0 $ 8.5 $ 4.7 $ 2.5 $ 1.9 $ 1.1 $ 68.6

Debt

Debt	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Debt	DEBT Debt consists of the following: (In millions) As of December 31, 2019 Principal Outstanding Unamortized Debt Issuance Costs Unamortized Discount Carrying Amount Revolving secured line of credit (1) $ — $ — $ — $ — Secured financing (2) 3,355.6 (15.9 ) — 3,339.7 Senior notes 1,201.8 (13.2 ) (0.8 ) 1,187.8 Mortgage note 11.3 — — 11.3 Total debt $ 4,568.7 $ (29.1 ) $ (0.8 ) $ 4,538.8 (In millions) As of December 31, 2018 Principal Outstanding Unamortized Debt Issuance Costs Unamortized Discount Carrying Amount Revolving secured line of credit (1) $ 171.9 $ — $ — $ 171.9 Secured financing (2) 3,108.7 (16.0 ) — 3,092.7 Senior notes 550.0 (4.5 ) (1.1 ) 544.4 Mortgage note 11.9 — — 11.9 Total debt $ 3,842.5 $ (20.5 ) $ (1.1 ) $ 3,820.9 (1) Excludes deferred debt issuance costs of $3.2 million and $2.9 million as of December 31, 2019 and December 31, 2018 , respectively, which are included in other assets. (2) Warehouse facilities and Term ABS. General information for each of our financing transactions in place as of December 31, 2019 is as follows: (Dollars in millions) Financings Wholly-owned Subsidiary Maturity Date Financing Amount Interest Rate as of December 31, 2019 Revolving Secured n/a 06/22/22 $ 340.0 At our option, either LIBOR plus 187.5 basis points or the prime rate plus 87.5 basis points Warehouse Facility II (1) CAC Warehouse Funding Corp. II 07/12/22 (2) $ 400.0 LIBOR plus 175 basis points (3) Warehouse Facility IV (1) CAC Warehouse Funding LLC IV 07/26/22 (2) $ 300.0 LIBOR plus 200 basis points (3) Warehouse Facility V (1) CAC Warehouse Funding LLC V 08/17/21 (4) $ 100.0 LIBOR plus 190 basis points (3) Warehouse Facility VI (1) CAC Warehouse Funding LLC VI 09/30/22 (2) $ 75.0 LIBOR plus 200 basis points Warehouse Facility VII (1) CAC Warehouse Funding LLC VII 12/16/21 (5) $ 150.0 Commercial paper rate plus 200 basis points (3) Warehouse Facility VIII (1) CAC Warehouse Funding LLC VIII 07/26/22 (2) $ 200.0 LIBOR plus 190 basis points (3) Term ABS 2016-3 (1) Credit Acceptance Funding LLC 2016-3 10/15/18 (2) $ 350.0 Fixed rate Term ABS 2017-1 (1) Credit Acceptance Funding LLC 2017-1 02/15/19 (2) $ 350.0 Fixed rate Term ABS 2017-2 (1) Credit Acceptance Funding LLC 2017-2 06/17/19 (2) $ 450.0 Fixed rate Term ABS 2017-3 (1) Credit Acceptance Funding LLC 2017-3 10/15/19 (2) $ 350.0 Fixed rate Term ABS 2018-1 (1) Credit Acceptance Funding LLC 2018-1 02/17/20 (2) $ 500.0 Fixed rate Term ABS 2018-2 (1) Credit Acceptance Funding LLC 2018-2 05/15/20 (2) $ 450.0 Fixed rate Term ABS 2018-3 (1) Credit Acceptance Funding LLC 2018-3 08/17/20 (2) $ 398.3 Fixed rate Term ABS 2019-1 (1) Credit Acceptance Funding LLC 2019-1 02/15/21 (2) $ 402.5 Fixed rate Term ABS 2019-2 (1) Credit Acceptance Funding LLC 2019-2 08/15/22 (6) $ 500.0 Fixed rate Term ABS 2019-3 (1) Credit Acceptance Funding LLC 2019-3 11/15/21 (2) $ 351.7 Fixed rate 2021 Senior Notes n/a 02/15/21 (7) $ 151.8 Fixed rate 2023 Senior Notes n/a 03/15/23 (7) $ 250.0 Fixed rate 2024 Senior Notes n/a 12/31/24 $ 400.0 Fixed rate 2026 Senior Notes n/a 03/15/26 $ 400.0 Fixed rate Mortgage Note Chapter 4 Properties, LLC 08/06/23 $ 12.0 LIBOR plus 150 basis points (1) Financing made available only to a specified subsidiary of the Company. (2) Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date based on the cash flows of the pledged assets. (3) Interest rate cap agreements are in place to limit the exposure to increasing interest rates. (4) Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on August 17, 2023 will be due on that date. (5) Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on December 16, 2023 will be due on that date. (6) Represents the revolving maturity date. The Company has the option to redeem and retire the indebtedness after the revolving maturity date. If we do not elect this option, the outstanding balance will amortize based on the cash flows of the pledged assets. (7) On January 17, 2020, we used a portion of the net proceeds from the 2024 senior notes to redeem the remaining $151.8 million outstanding principal amount of the 2021 senior notes. We intend to use the remaining net proceeds from the 2024 senior notes, together with borrowings under our revolving credit facility and cash on hand to the extent available, to redeem in full the $250.0 million outstanding principal amount of the 2023 senior notes on or around March 15, 2020. Additional information related to the amounts outstanding on each facility is as follows: (In millions) For the Years Ended December 31, 2019 2018 Revolving Secured Line of Credit Maximum outstanding principal balance $ 282.9 $ 265.4 Average outstanding principal balance 77.2 40.6 Warehouse Facility II Maximum outstanding principal balance $ 201.0 $ 201.0 Average outstanding principal balance 78.0 3.3 Warehouse Facility IV Maximum outstanding principal balance $ 100.0 $ 99.0 Average outstanding principal balance 1.1 0.5 Warehouse Facility V Maximum outstanding principal balance $ 35.0 $ 99.0 Average outstanding principal balance 0.9 1.1 Warehouse Facility VI Maximum outstanding principal balance $ — $ 75.0 Average outstanding principal balance — 0.4 Warehouse Facility VII Maximum outstanding principal balance $ 101.5 $ 150.0 Average outstanding principal balance 7.1 7.8 Warehouse Facility VIII Maximum outstanding principal balance $ 145.3 $ — Average outstanding principal balance 7.2 — (Dollars in millions) As of December 31, 2019 2018 Revolving Secured Line of Credit Principal balance outstanding $ — $ 171.9 Amount available for borrowing (1) 340.0 178.1 Interest rate — % 4.38 % Warehouse Facility II Principal balance outstanding $ — $ — Amount available for borrowing (1) 400.0 400.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility IV Principal balance outstanding $ — $ — Amount available for borrowing (1) 300.0 250.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility V Principal balance outstanding $ — $ — Amount available for borrowing (1) 100.0 100.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility VI Principal balance outstanding $ — $ — Amount available for borrowing (1) 75.0 75.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral — 0.1 Interest rate — % — % Warehouse Facility VII Principal balance outstanding $ — $ — Amount available for borrowing (1) 150.0 150.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility VIII Principal balance outstanding $ — $ — Amount available for borrowing (1) 200.0 — Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral — — Interest rate — % — % Term ABS 2016-1 Principal balance outstanding $ — $ 125.3 Loans pledged as collateral — 320.8 Restricted cash and cash equivalents pledged as collateral — 29.6 Interest rate — % 4.41 % Term ABS 2016-2 Principal balance outstanding $ — $ 184.5 Loans pledged as collateral — 335.0 Restricted cash and cash equivalents pledged as collateral — 28.3 Interest rate — % 3.20 % Term ABS 2016-3 Principal balance outstanding $ 51.8 $ 300.6 Loans pledged as collateral 219.5 392.7 Restricted cash and cash equivalents pledged as collateral 23.5 30.7 Interest rate 3.60 % 2.59 % Term ABS 2017-1 Principal balance outstanding $ 120.9 $ 350.0 Loans pledged as collateral 292.8 429.8 Restricted cash and cash equivalents pledged as collateral 26.1 30.9 Interest rate 3.19 % 2.78 % Term ABS 2017-2 Principal balance outstanding $ 277.2 $ 450.0 Loans pledged as collateral 426.7 548.4 Restricted cash and cash equivalents pledged as collateral 35.1 39.4 Interest rate 2.83 % 2.72 % Term ABS 2017-3 Principal balance outstanding $ 303.2 $ 350.0 Loans pledged as collateral 393.0 426.1 Restricted cash and cash equivalents pledged as collateral 29.3 28.6 Interest rate 2.91 % 2.88 % Term ABS 2018-1 Principal balance outstanding $ 500.0 $ 500.0 Loans pledged as collateral 609.5 614.5 Restricted cash and cash equivalents pledged as collateral 43.8 41.8 Interest rate 3.24 % 3.24 % Term ABS 2018-2 Principal balance outstanding $ 450.0 $ 450.0 Loans pledged as collateral 550.4 552.2 Restricted cash and cash equivalents pledged as collateral 37.6 36.3 Interest rate 3.68 % 3.68 % Term ABS 2018-3 Principal balance outstanding $ 398.3 $ 398.3 Loans pledged as collateral 487.7 578.8 Restricted cash and cash equivalents pledged as collateral 32.3 33.6 Interest rate 3.72 % 3.72 % Term ABS 2019-1 Principal balance outstanding $ 402.5 $ — Loans pledged as collateral 490.2 — Restricted cash and cash equivalents pledged as collateral 31.9 — Interest rate 3.53 % — % Term ABS 2019-2 Principal balance outstanding $ 500.0 $ — Loans pledged as collateral 628.5 — Restricted cash and cash equivalents pledged as collateral 38.6 — Interest rate 3.13 % — % Term ABS 2019-3 Principal balance outstanding $ 351.7 $ — Loans pledged as collateral 428.6 — Restricted cash and cash equivalents pledged as collateral 27.2 — Interest rate 2.56 % — % 2021 Senior Notes Principal balance outstanding $ 151.8 $ 300.0 Interest rate 6.125 % 6.125 % 2023 Senior Notes Principal balance outstanding $ 250.0 $ 250.0 Interest rate 7.375 % 7.375 % 2024 Senior Notes Principal balance outstanding $ 400.0 $ — Interest rate 5.125 % — % 2026 Senior Notes Principal balance outstanding $ 400.0 $ — Interest rate 6.625 % — % Mortgage Note Principal balance outstanding $ 11.3 $ 11.9 Interest rate 3.21 % 3.85 % (1) Availability may be limited by the amount of assets pledged as collateral. Revolving Secured Line of Credit Facility We have a $ 340.0 million revolving secured line of credit facility with a commercial bank syndicate. Borrowings under the revolving secured line of credit facility, including any letters of credit issued under the facility, are subject to a borrowing-base limitation. This limitation equals 80% of the value of Loans, as defined in the agreement, less a hedging reserve (not exceeding $ 1.0 million ), and the amount of other debt secured by the collateral which secures the revolving secured line of credit facility. Borrowings under the revolving secured line of credit facility agreement are secured by a lien on most of our assets. Warehouse Facilities We have six Warehouse facilities with total borrowing capacity of $ 1,225.0 million . Each of the facilities is with a different lender or group of lenders. Under each Warehouse facility, we can contribute Loans to our wholly-owned subsidiaries in return for cash and equity in each subsidiary. In turn, each subsidiary pledges the Loans as collateral to lenders to secure financing that will fund the cash portion of the purchase price of the Loans. The financing provided to each subsidiary under the applicable facility is generally limited to the lesser of 80% of the value of the contributed Loans, as defined in the agreements, plus the restricted cash and cash equivalents pledged as collateral on such Loans or the facility limit. The financings create indebtedness for which the subsidiaries are liable and which is secured by all the assets of each subsidiary. Such indebtedness is non-recourse to us, even though we are consolidated for financial reporting purposes with the subsidiaries. Because the subsidiaries are organized as legal entities separate from us, their assets (including the contributed Loans) are not available to our creditors. The subsidiaries pay us a monthly servicing fee equal to 6% of the collections received with respect to the contributed Loans. The servicing fee is paid out of the collections. Except for the servicing fee and holdback payments due to Dealers, if a facility is amortizing, we do not have any rights in any portion of such collections until all outstanding principal, accrued and unpaid interest, fees and other related costs have been paid in full. If a facility is not amortizing, the applicable subsidiary may be entitled to retain a portion of such collections provided that the borrowing base requirements of the facility are satisfied. Term ABS Financings We have wholly-owned subsidiaries (the “Funding LLCs”) that have completed secured financing transactions with qualified institutional investors or lenders. In connection with these transactions, we contributed Loans on an arms-length basis to each Funding LLC for cash and the sole membership interest in that Funding LLC. In turn, each Funding LLC, other than that of Term ABS 2019-2, contributed the Loans to a respective trust that issued notes to qualified institutional investors. The Funding LLC for the Term ABS 2019-2 transaction pledged the Loans to a lender. The Term ABS 2016-3, 2017-1, 2017-2, 2017-3, 2018-1, 2018-2, 2018-3, 2019-1 and 2019-3 transactions each consist of three classes of notes. Each financing at the time of issuance has a specified revolving period during which we are likely to contribute additional Loans to each Funding LLC. Each Funding LLC (other than that of Term ABS 2019-2) will then contribute the Loans to its respective trust. At the end of the applicable revolving period, the debt outstanding under each financing will begin to amortize. The financings create indebtedness for which the trusts or Funding LLCs are liable and which is secured by all the assets of each trust or Funding LLC. Such indebtedness is non-recourse to us, even though we are consolidated for financial reporting purposes with the trusts and the Funding LLCs. Because the Funding LLCs are organized as legal entities separate from us, their assets (including the contributed Loans) are not available to our creditors. We receive a monthly servicing fee on each financing equal to 6% of the collections received with respect to the contributed Loans. The fee is paid out of the collections. Except for the servicing fee and Dealer Holdback payments due to Dealers, if a facility is amortizing, we do not have any rights in any portion of such collections until all outstanding principal, accrued and unpaid interest, fees and other related costs have been paid in full. If a facility is not amortizing, the applicable subsidiary may be entitled to retain a portion of such collections provided that the borrowing base requirements of the facility are satisfied. However, in our capacity as servicer of the Loans, we do have a limited right to exercise a “clean-up call” option to purchase Loans from the Funding LLCs and/or the trusts under certain specified circumstances. For those Funding LLCs with a trust, when the trust’s underlying indebtedness is paid in full, either through collections or through a prepayment of the indebtedness, the trust is to pay any remaining collections over to its Funding LLC as the sole beneficiary of the trust. For all Funding LLCs, after the indebtedness is paid in full, any remaining collections will ultimately be available to be distributed to us as the sole member of the respective Funding LLC. The table below sets forth certain additional details regarding the outstanding Term ABS financings: (Dollars in millions) Term ABS Financings Close Date Net Book Value of Loans Contributed at Closing Revolving Period Term ABS 2016-3 October 27, 2016 $ 437.8 Through October 15, 2018 Term ABS 2017-1 February 23, 2017 437.8 Through February 15, 2019 Term ABS 2017-2 June 29, 2017 563.2 Through June 17, 2019 Term ABS 2017-3 October 26, 2017 437.6 Through October 15, 2019 Term ABS 2018-1 February 22, 2018 625.1 Through February 17, 2020 Term ABS 2018-2 May 24, 2018 562.6 Through May 15, 2020 Term ABS 2018-3 August 23, 2018 500.1 Through August 17, 2020 Term ABS 2019-1 February 21, 2019 503.1 Through February 15, 2021 Term ABS 2019-2 August 28, 2019 625.1 Through August 15, 2022 Term ABS 2019-3 November 21, 2019 439.6 Through November 15, 2021 Senior Notes On December 18, 2019, we issued $400.0 million aggregate principal amount of 5.125% senior notes due 2024 (the “2024 senior notes”). The 2024 senior notes were issued pursuant to an indenture, dated as of December 18, 2019, among the Company, as issuer, the Company’s subsidiaries Buyers Vehicle Protection Plan, Inc. and Vehicle Remarketing Services, Inc., as guarantors (collectively, the “Guarantors”), and U.S. Bank National Association, as trustee. The 2024 senior notes mature on December 31, 2024 and bear interest at a rate of 5.125% per annum, computed on the basis of a 360-day year composed of twelve 30-day months and payable semi-annually on June 30 and December 31 of each year, beginning on June 30, 2020. We used a portion of the net proceeds from the 2024 senior notes to repurchase or redeem all of the $300.0 million outstanding principal amount of our 6.125% senior notes due 2021 (the “2021 senior notes”), of which $148.2 million was repurchased on December 18, 2019 and the remaining $151.8 million was redeemed on January 17, 2020. We intend to use the remaining net proceeds from the 2024 senior notes, together with borrowings under our revolving credit facility and cash on hand to the extent available, to redeem in full the $250.0 million outstanding principal amount of our 7.375% senior notes due 2023 (the “2023 senior notes”) on or around March 15, 2020. During the fourth quarter of 2019, we recognized a pre-tax loss on extinguishment of debt of $1.8 million related to the repurchase of the 2021 senior notes in the fourth quarter of 2019 and the irrevocable notice given in December 2019 for the redemption of the remaining 2021 senior notes in the first quarter of 2020. On March 7, 2019, we issued $400.0 million aggregate principal amount of 6.625% senior notes due 2026 (the “2026 senior notes”). The 2026 senior notes were issued pursuant to an indenture, dated as of March 7, 2019, among the Company, as issuer, the Guarantors, and U.S. Bank National Association, as trustee. The 2026 senior notes mature on March 15, 2026 and bear interest at a rate of 6.625% per annum, computed on the basis of a 360-day year composed of twelve 30-day months and payable semi-annually on March 15 and September 15 of each year, beginning on September 15, 2019. We used the net proceeds from the offering of the 2026 senior notes for general corporate purposes, including repayment of outstanding borrowings under our revolving secured line of credit facility. On March 30, 2015 , we issued $250.0 million aggregate principal amount of 2023 senior notes pursuant to an indenture, dated as of March 30, 2015 , among the Company, as issuer, the Guarantors, and U.S. Bank National Association, as trustee. The 2023 senior notes mature on March 15, 2023 and bear interest at a rate of 7.375% per annum, computed on the basis of a 360-day year composed of twelve 30-day months and payable semi-annually on March 15 and September 15 of each year, beginning on September 15, 2015. The 2023 senior notes were issued at a price of 99.266% of their aggregate principal amount, resulting in gross proceeds of $248.2 million , and a yield to maturity of 7.5% per annum. We used the net proceeds from the offering of the 2023 senior notes for general corporate purposes, including repayment of outstanding borrowings under our revolving secured line of credit facility. We intend to use the remaining net proceeds from the 2024 senior notes, together with borrowings under our revolving credit facility and cash on hand to the extent available, to redeem in full the $250.0 million outstanding principal amount of the 2023 senior notes on or around March 15, 2020. On January 22, 2014 , we issued $300.0 million aggregate principal amount of 2021 senior notes pursuant to an indenture, dated as of January 22, 2014 , among the Company, the Guarantors, and U.S. Bank National Association, as trustee. The 2021 senior notes mature on February 15, 2021 and bear interest at a rate of 6.125% per annum, computed on the basis of a 360-day year composed of twelve 30-day months and payable semi-annually on February 15 and August 15 of each year, beginning on August 15, 2014. We used the net proceeds from the 2021 senior notes, together with borrowings under our revolving credit facilities, to redeem in full the $350.0 million aggregate principal amount of our 9.125% first priority senior secured notes due 2017 (the “2017 senior notes”) on February 21, 2014 . During the first quarter of 2014, we recognized a pre-tax loss on extinguishment of debt of $21.8 million related to the redemption of the 2017 senior notes. We used a portion of the net proceeds from the 2024 senior notes to repurchase or redeem all of the $300.0 million outstanding principal amount of the 2021 senior notes, of which $148.2 million was repurchased on December 18, 2019 and the remaining $151.8 million was redeemed on January 17, 2020. All of the 2021, 2023, 2024 and 2026 senior notes (the "senior notes") are guaranteed on a senior basis by the Guarantors, which are also guarantors of obligations under our revolving secured line of credit facility. Other existing and future subsidiaries of ours may become guarantors of the senior notes in the future. The indentures for the senior notes provide for a guarantor of the senior notes to be released from its obligations under its guarantee of the senior notes under specified circumstances. Mortgage Note On August 6, 2018 , we entered into a $12.0 million mortgage note with a commercial bank that is secured by a first mortgage lien on a building acquired by us and an assignment of all leases, rents, revenues and profits under all present and future leases of the building. The note matures on August 6, 2023, and bears interest at LIBOR plus 150 basis points. Principal Debt Maturities The scheduled principal maturities of our debt as of December 31, 2019 are as follows: (In millions) Year Revolving Secured Line of Credit Facility Warehouse Facilities Term ABS Financings (1) Senior Notes Mortgage Note Total 2020 $ — $ — $ 1,376.0 $ 151.8 $ 0.7 $ 1,528.5 2021 — — 1,017.2 — 0.7 1,017.9 2022 — — 915.5 — 0.7 916.2 2023 — — 46.9 250.0 9.2 306.1 2024 — — — 400.0 — 400.0 Thereafter — — — 400.0 — 400.0 Total $ — $ — $ 3,355.6 $ 1,201.8 $ 11.3 $ 4,568.7 (1) The principal maturities of the Term ABS transactions are estimated based on forecasted collections. Debt Covenants As of December 31, 2019 , we were in compliance with our covenants under the revolving secured line of credit facility and our Warehouse facilities, including those that require the maintenance of certain financial ratios and other financial conditions. These covenants require a minimum ratio of (1) our net earnings, adjusted for specified items, before income taxes, depreciation, amortization and fixed charges to (2) our fixed charges. These covenants also limit the maximum ratio of our funded debt less unrestricted cash and cash equivalents to tangible net worth. Additionally, we must maintain consolidated net income of not less than $1 for the two most recently ended fiscal quarters. Some of these covenants may indirectly limit the repurchase of common stock or payment of dividends on common stock. Our Warehouse facilities also contain covenants that measure the performance of the contributed assets. Our Term ABS financings also contain covenants that measure the performance of the contributed assets. As of December 31, 2019 , we were in compliance with all such covenants. As of the end of the year, we were also in compliance with our covenants under the senior notes indentures.

Derivative And Hedging Instrume

Derivative And Hedging Instruments	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative And Hedging Instruments	DERIVATIVE AND HEDGING INSTRUMENTS Interest Rate Caps. We utilize interest rate cap agreements to manage the interest rate risk on certain secured financings. The following tables provide the terms of our interest rate cap agreements that were in effect as of December 31, 2019 and 2018 : (Dollars in millions) As of December 31, 2019 Facility Amount Facility Name Purpose Start End Notional Cap Interest Rate (1) $ 400.0 Warehouse Facility II Cap Floating Rate 12/2017 12/2020 $ 205.0 5.50 % 300.0 Warehouse Facility IV Cap Floating Rate 05/2017 04/2021 100.0 6.50 % Cap Floating Rate 05/2018 04/2021 150.0 6.50 % Cap Floating Rate 07/2019 07/2023 50.0 6.50 % 300.0 100.0 Warehouse Facility V Cap Floating Rate 08/2018 08/2023 75.0 6.50 % 150.0 Warehouse Facility VII Cap Floating Rate 12/2017 11/2021 143.8 5.50 % 200.0 Warehouse Facility VIII Cap Floating Rate 08/2019 08/2023 200.0 5.50 % (Dollars in millions) As of December 31, 2018 Facility Amount Facility Name Purpose Start End Notional Cap Interest Rate (1) $ 400.0 Warehouse Facility II Cap Floating Rate 12/2017 12/2020 $ 205.0 5.50 % 250.0 Warehouse Facility IV Cap Floating Rate 04/2016 04/2019 25.0 5.50 % Cap Floating Rate 05/2017 04/2021 75.0 6.50 % Cap Floating Rate 05/2018 04/2021 150.0 6.50 % 250.0 100.0 Warehouse Facility V Cap Floating Rate 08/2018 08/2023 75.0 6.50 % 125.3 Term ABS 2016-1 Cap Floating Rate 04/2016 02/2019 64.2 5.00 % 150.0 Warehouse Facility VII Cap Floating Rate 12/2017 11/2021 150.0 5.50 % (1) Rate excludes the spread over the corresponding LIBOR or commercial paper rate. The interest rate caps have not been designated as hedging instruments. As of December 31, 2019 and 2018 , the interest rate caps had a fair value of $ 0.1 million and $ 0.0 million , respectively, as the capped rates were significantly above market rates. Information related to the effect of derivative instruments not designated as hedging instruments on our consolidated statements of income for the years ended December 31, 2019 , 2018 and 2017 is as follows: (In millions) Amount of Loss Recognized in Income on Derivatives Derivatives Not Designated as Hedging Instruments For the Years Ended December 31, Location 2019 2018 2017 Interest rate caps Interest expense $ (0.1 ) $ (0.1 ) $ (0.1 )

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Income Tax Provision The income tax provision consists of the following: (In millions) For the Years Ended December 31, 2019 2018 2017 Income before provision for income taxes: $ 855.9 $ 755.1 $ 583.8 Current provision for income taxes: Federal 94.1 110.9 184.6 State 18.7 19.5 13.5 112.8 130.4 198.1 Deferred provision for income taxes: Federal 70.7 35.0 (88.4 ) State 14.8 14.3 2.7 85.5 49.3 (85.7 ) Interest and penalties expense: Interest 1.5 1.4 1.2 Penalties — — — 1.5 1.4 1.2 Provision for income taxes $ 199.8 $ 181.1 $ 113.6 Deferred Taxes The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities consist of the following: (In millions) As of December 31, 2019 2018 Deferred tax assets: Allowance for credit losses $ 128.3 $ 110.1 Stock-based compensation 15.5 16.5 Deferred state net operating loss 3.6 4.3 Other, net 13.2 7.0 Total deferred tax assets 160.6 137.9 Deferred tax liabilities: Valuation of Loans receivable 471.3 363.9 Deferred Loan origination costs 1.6 1.5 Other, net 10.2 9.2 Total deferred tax liabilities 483.1 374.6 Net deferred tax liability $ 322.5 $ 236.7 The deferred state net operating loss tax asset arising from the operating loss carryforward for state income tax purposes is expected to expire at various times beginning in 2028, if not utilized. During 2018, we wrote off $3.4 million of this deferred tax asset as we determined that we would not be able to utilize a state net operating loss carryforward prior to its expiration. We do not anticipate expiration of the remaining net operating loss carryforwards prior to their utilization. Effective Income Tax Rate A reconciliation of the U.S. federal statutory income tax rate to our effective income tax rate is as follows: For the Years Ended December 31, 2019 2018 2017 U.S. federal statutory income tax rate 21.0 % 21.0 % 35.0 % Effect of the 2017 Tax Act — % -0.7 % -17.1 % State income taxes 3.1 % 3.5 % 1.7 % Excess tax benefits from stock-based compensation plans -0.9 % -0.1 % -0.4 % Other 0.1 % 0.3 % 0.3 % Effective income tax rate 23.3 % 24.0 % 19.5 % U.S. federal statutory income tax rate The enactment of the 2017 Tax Act in December 2017 lowered our federal statutory income tax rate from 35.0% in 2017 to 21.0% in 2018 and 2019. Effect of the 2017 Tax Act While the lower federal statutory income tax rate was not effective until 2018, the 2017 Tax Act resulted in a one-time reversal of $ 99.8 million of provision for income taxes in 2017 as we were required to revalue deferred taxes and uncertain tax positions at the lower federal statutory income tax rate. In 2018, we reversed a provisional valuation allowance related to stock-based compensation that we had established in 2017 upon enactment of the 2017 Tax Act, which resulted in a $5.5 million reversal of provision for income taxes in 2018. State income taxes The decrease in our state income tax rate from 2018 to 2019 was primarily the result of the write-off of a deferred state net operating loss tax asset during 2018. The increase in our state income tax rate from 2017 to 2018 was primarily the result of the write-off of a deferred state net operating loss tax asset during 2018, an increase in the percentage of income reserved for uncertain tax positions and higher effective income tax rates in certain state tax jurisdictions. Excess tax benefits from stock-based compensation plans During the first quarter of each year, we receive a tax benefit upon the vesting of restricted stock and the conversion of restricted stock units to common stock based on the fair value of the shares. The amount by which this tax benefit exceeds the grant-date fair value that was recognized as stock-based compensation expense is referred to as an excess tax benefit. Excess tax benefits are recognized in provision for income taxes and reduce our effective income tax rate. The increase in excess tax benefits from 2018 to 2019 was primarily the result of an increase in the number of restricted stock units that were converted to common stock due to the timing of long-term stock award grants. Unrecognized Tax Benefits The following table is a summary of changes in gross unrecognized tax benefits: (In millions) For the Years Ended December 31, 2019 2018 2017 Unrecognized tax benefits at January 1, $ 38.7 $ 31.9 $ 27.7 Additions for tax positions of the current year 10.0 10.2 6.7 Additions for tax positions of prior years — — 0.3 Reductions for tax positions of prior years — — (0.4 ) Settlements (2.3 ) — — Reductions as a result of a lapse of the statute of limitations (4.7 ) (3.4 ) (2.4 ) Unrecognized tax benefits at December 31, $ 41.7 $ 38.7 $ 31.9 The total amount of gross unrecognized tax benefit that, if recognized, would favorably affect our effective income tax rate in future periods, was $ 41.7 million as of December 31, 2019 . Accrued interest related to uncertain tax positions was $ 8.9 million and $ 7.5 million as of December 31, 2019 and 2018 , respectively. We are subject to income tax in federal and state jurisdictions. We are generally no longer subject to tax examinations on federal returns filed for years prior to 2016 and state returns filed for years prior to 2012.

Net Income Per Share

Net Income Per Share	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Net Income Per Share	NET INCOME PER SHARE Basic net income per share has been computed by dividing net income by the basic number of weighted average shares outstanding. Diluted net income per share has been computed by dividing net income by the diluted number of weighted average shares outstanding using the treasury stock method. The share effect is as follows: For the Years Ended December 31, 2019 2018 2017 Weighted average shares outstanding: Common shares 18,614,719 19,144,785 19,245,188 Vested restricted stock units 285,537 301,282 252,531 Basic number of weighted average shares outstanding 18,900,256 19,446,067 19,497,719 Dilutive effect of restricted stock and restricted stock units 76,304 86,245 61,217 Dilutive number of weighted average shares outstanding 18,976,560 19,532,312 19,558,936 For the years ended December 31, 2019 and 2018 , there were no stock options, restricted stock or restricted stock units that would have been anti-dilutive. For the year ended December 31, 2017, there were 250

Stock Repurchases

Stock Repurchases	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Stock Repurchases	STOCK REPURCHASES The following table summarizes our stock repurchases for the years ended December 31, 2019 , 2018 , and 2017 : (Dollars in millions) For the Years Ended December 31, 2019 2018 2017 Stock Repurchases Number of Shares Repurchased Cost Number of Shares Repurchased Cost Number of Shares Repurchased Cost Open Market (1) 669,752 $ 282.2 336,743 $ 127.1 588,580 $ 119.1 Other (2) 42,696 18.2 6,185 2.0 21,680 4.4 Total 712,448 $ 300.4 342,928 $ 129.1 610,260 $ 123.5 (1) Represents repurchases under authorizations by the board of directors for the repurchase of shares by us from time to time in the open market or in privately negotiated transactions. On November 7, 2019, the board of directors authorized the repurchase of up to one million shares of our common stock in addition to the board’s prior authorizations. As of December 31, 2019 , we had authorization to repurchase 769,713 shares of our common stock. (2) Represents shares of common stock released to us by team members as payment of tax withholdings upon the vesting of restricted stock and restricted stock units and the conversion of restricted stock units to common stock.

Stock-Based Compensation Plans

Stock-Based Compensation Plans	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock-Based Compensation Plans	STOCK-BASED COMPENSATION PLANS Pursuant to our Amended and Restated Incentive Compensation Plan (the “Incentive Plan”), we can grant stock-based awards in the form of restricted stock, restricted stock units and stock options to team members, officers, directors, and contractors at any time prior to March 26, 2022. On March 26, 2012, our board of directors approved an amendment to our Incentive Plan, increasing the number of shares authorized for issuance by 500,000 shares, to 2.0 million shares. The shares available for future grants under the Incentive Plan totaled 121,621 as of December 31, 2019 . Restricted Stock We grant performance-based and time-based shares of restricted stock to team members in accordance with our Incentive Plan. The grant-date fair value per share is estimated to equal the market price of our common stock on the date of grant. Based on the terms of individual restricted stock grant agreements, shares vest under one of the following methods: • Over a period of 15 years , based on continuous employment and a combination of the cumulative improvement in our annual adjusted economic profit, a non-GAAP financial measure, and the attainment of annual adjusted economic profit targets. • Over a period of three years , based on continuous employment. A summary of the non-vested restricted stock activity under the Incentive Plan for the year ended December 31, 2019 is presented below: Restricted Stock Number of Shares Weighted Average Grant-Date Fair Value Per Share Non-vested as of December 31, 2018 150,647 $ 117.41 Granted 5,301 441.54 Vested (17,971 ) 148.14 Forfeited (474 ) 363.16 Non-vested as of December 31, 2019 137,503 $ 125.04 The grant-date weighted average fair value of shares granted in 2019 , 2018 and 2017 was $ 441.54 , $ 317.87 , and $ 200.79 , respectively. The total fair value of shares vested was $ 7.9 million in 2019 , $ 4.8 million in 2018 and $5.6 million in 2017 . Restricted Stock Units We grant performance-based restricted stock units to team members and directors in accordance with our Incentive Plan. The grant-date fair value per share is estimated to equal the market price of our common stock on the date of grant. Each restricted stock unit represents and has a value equal to one share of common stock. Based on the terms of individual restricted stock grant agreements, restricted stock units vest under one of the following methods: • Over a period of ten years , based on continuous employment and the cumulative improvement in our annual adjusted economic profit. • Over a period of five years , based upon the compounded annual growth rate in our adjusted economic profit. • Over a period of one to four years , based on continuous employment and the compounded annual growth rate in our adjusted EPS, a non-GAAP financial measure. A summary of the restricted stock unit activity under the Incentive Plan for the year ended December 31, 2019 , is presented below: Restricted Stock Units Number of Restricted Weighted Average Grant-Date Fair Value Per Share Aggregate Intrinsic Value (2) (in millions) Weighted Average Remaining Contractual Term (in years) Outstanding as of December 31, 2018 516,773 $ 127.07 Granted 3,000 453.64 Converted (87,842 ) 106.54 Forfeited (3,100 ) 206.45 Outstanding as of December 31, 2019 (1) 428,831 $ 132.99 $ 189.7 4.1 Vested as of December 31, 2019 285,250 $ 124.67 $ 126.2 3.6 (1) No RSUs outstanding at December 31, 2019 were convertible to shares of common stock. (2) The intrinsic value of RSUs is measured by applying the closing stock price as of December 31, 2019 to the applicable number of units. The grant-date weighted average fair value of RSUs granted in 2019 , 2018 and 2017 was $ 453.64 , $ 363.11 , and $ 206.45 , respectively. The total intrinsic value of RSUs converted to common stock during 2019 , 2018 and 2017 was $ 36.9 million , $ 0.5 million , and $ 6.9 million , respectively. Stock-based compensation expense Stock-based compensation expense consists of the following: (In millions) For the Years Ended December 31, 2019 2018 2017 Restricted stock $ 3.0 $ 2.7 $ 2.9 Restricted stock units 4.6 7.6 12.5 Total $ 7.6 $ 10.3 $ 15.4 While the stock-based awards are often expected to vest in equal, annual installments over the corresponding requisite service periods of the grants, the related stock-based compensation expense is not recognized on a straight-line basis over the same periods. Each installment is accounted for as a separate award and as a result, the fair value of each installment is recognized as stock-based compensation expense on a straight-line basis over the related expected vesting period. Assuming performance targets are achieved in the periods currently estimated, we expect to recognize the remaining expense for stock-based awards outstanding as of December 31, 2019 over a weighted average period of 1.7 years, as follows: (In millions) For the Years Ended December 31, Restricted Restricted Stock Total Projected Expense 2020 $ 2.8 $ 1.9 $ 4.7 2021 0.6 1.2 1.8 2022 0.1 0.9 1.0 2023 — 0.7 0.7 2024 — 0.5 0.5 Thereafter — 0.5 0.5 Total $ 3.5 $ 5.7 $ 9.2

Business Segment And Other Info

Business Segment And Other Information	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Business Segment And Other Information	BUSINESS SEGMENT AND OTHER INFORMATION Business Segment Overview We identify operating segments as components of our business for which separate financial information is regularly evaluated by the chief operating decision-maker (“CODM”) in making decisions regarding resource allocation and assessing performance. We periodically review and redefine our segment reporting as internal management reporting practices evolve and the components of our business change. Currently, the CODM reviews consolidated financial statements and metrics to allocate resources and assess performance. Thus, we have determined that we operate in one reportable operating segment. The consolidated financial statements reflect the financial results of our one reportable operating segment. Geographic Information For the three years ended December 31, 2019 , 2018 and 2017 , all of our revenues were derived from the United States. As of December 31, 2019 and 2018 , all of our long-lived assets were located in the United States. Products and Services Information Our primary product consists of financing programs that enable Dealers to sell vehicles to consumers, regardless of their credit history. We also provide Dealers the ability to offer or purchase ancillary products on vehicles financed by us. Major Customer Information We did not have any Dealers that provided 10% or more of our revenue during 2019 , 2018 , or 2017 . Additionally, no single Dealer’s Loans receivable balance accounted for more than 10% of total Loans receivable as of December 31, 2019 or 2018
Number of Operating Segments	1

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Litigation and Other Legal Matters In the normal course of business and as a result of the consumer-oriented nature of the industry in which we operate, we and other industry participants are frequently subject to various consumer claims, litigation and regulatory investigations seeking damages, fines and statutory penalties. The claims allege, among other theories of liability, violations of state, federal and foreign truth-in-lending, credit availability, credit reporting, consumer protection, warranty, debt collection, insurance and other consumer-oriented laws and regulations, including claims seeking damages for alleged physical and mental harm relating to the repossession and sale of consumers' vehicles and other debt collection activities. As the assignee of Consumer Loans originated by Dealers, we may also be named as a co-defendant in lawsuits filed by consumers principally against Dealers. We may also have disputes and litigation with Dealers. The claims may allege, among other theories of liability, that we breached our Dealer servicing agreement. We may also have disputes and litigation with vendors and other third parties. The claims may allege, among other theories of liability, that we breached a license agreement or contract. The damages, fines and penalties that may be claimed by consumers, regulatory agencies, Dealers, vendors or other third parties in these types of matters can be substantial. The relief requested by plaintiffs varies but may include requests for compensatory, statutory and punitive damages and injunctive relief, and plaintiffs may seek treatment as purported class actions. Current actions to which we are a party include the following matters. On May 7, 2019, we received a subpoena from the Office of the New York State Attorney General, relating to the Company’s origination and collection policies and procedures in the state of New York. We are cooperating with the inquiry and cannot predict the eventual scope, duration or outcome at this time. As a result, we are unable to estimate the reasonably possible loss or range of reasonably possible loss arising from this investigation. On April 22, 2019, we received a civil investigative demand from the Bureau of Consumer Financial Protection (the “Bureau”) seeking, among other things, certain information relating to the Company’s origination and collection of Consumer Loans, TPPs and credit reporting. We cannot predict the eventual scope, duration or outcome of this investigation at this time. As a result, we are unable to estimate the reasonably possible loss or range of reasonably possible loss arising from this investigation. On August 14, 2017, we received a subpoena from the Attorney General of the State of Mississippi, relating to the origination and collection of non-prime auto loans in the state of Mississippi. The Company cooperated with the inquiry. On April 23, 2019, the Attorney General of the State of Mississippi, on behalf of the State of Mississippi, filed a complaint in the Chancery Court of the First Judicial District of Hinds County, Mississippi, alleging that the Company engaged in unfair and deceptive trade practices in subprime auto lending, loan servicing, vehicle repossession and debt collection in the State of Mississippi in violation of the Mississippi Consumer Protection Act. The complaint seeks injunctive relief, including civil penalties and disgorgement, and payment of the State’s attorney’s fees and costs. We cannot predict the duration or outcome of this lawsuit at this time. As a result, we are unable to estimate the reasonably possible loss or range of reasonably possible loss arising from this lawsuit. The Company intends to vigorously defend itself in this matter. On June 14, 2017, we were informed that the Bureau’s Office of Fair Lending and Equal Opportunity is investigating whether the Company may have violated the Equal Credit Opportunity Act ("ECOA") and Regulation B. On February 6, 2020, we were notified by the Bureau that they have completed their examination, they identified two matters requiring action and these matters will be addressed through the supervisory process. On March 18, 2016, we received a subpoena from the Attorney General of the State of Maryland, relating to the Company’s repossession and sale policies and procedures in the state of Maryland. We are cooperating with the inquiry and cannot predict the eventual scope, duration or outcome at this time. As a result, we are unable to estimate the reasonably possible loss or range of reasonably possible loss arising from this investigation. On February 19, 2016, we received a First Amended Complaint filed by Westlake Services d/b/a Westlake Financial Service and Nowcom Corporation, alleging that the Company has attempted to monopolize the indirect financing profit sharing program market in violation of Section 2 of the Sherman Act and seeking, among other things, injunctive relief and unspecified money damages, which, if awarded, would likely be trebled pursuant to the Sherman Act. The case was filed in the United States District Court, Central District of California, Western Division. On April 6, 2016, the Court dismissed the claims brought by Nowcom Corporation. On January 5, 2018, the Court entered judgment in favor of the Company, dismissing the case with prejudice on the merits and ordering that the Company be awarded its costs of suit from Westlake Services, LLC. On February 2, 2018, Westlake Services, LLC filed a Notice of Appeal with the Court. On July 13, 2018, Westlake Services, LLC filed its appellate brief with the United States Court of Appeals for the Ninth Circuit. On September 14, 2018, we filed our response to Westlake Services, LLC’s appellate brief. On October 19, 2018, Westlake Services, LLC filed its reply brief. On February 5, 2020, the United States Court of Appeals for the Ninth Circuit affirmed the January 5, 2018 judgment entered in favor of the Company, dismissing the case with prejudice. On December 9, 2014, we received a civil investigative subpoena from the U.S. Department of Justice pursuant to the Financial Institutions Reform, Recovery, and Enforcement Act of 1989 directing us to produce certain information relating to subprime automotive finance and related securitization activities. We have cooperated with the inquiry, but cannot predict the eventual scope, duration or outcome at this time. As a result, we are unable to estimate the reasonably possible loss or range of reasonably possible loss arising from this investigation. On December 4, 2014, we received a civil investigative demand from the Office of the Attorney General of the Commonwealth of Massachusetts relating to the origination and collection of non-prime auto loans in Massachusetts. On November 20, 2017 we received a second civil investigation demand from the Office of the Attorney General seeking updated information on its original civil investigation demand, additional information related to the Company's origination and collection of Consumer Loans, and information regarding securitization activities. In connection with this inquiry, we were informed by representatives of the Office of the Attorney General that it believes that the Company may have engaged in unfair and deceptive acts or practices related to the origination and collection of auto loans, which may have caused some of the Company’s representations and warranties contained in securitization documents to be inaccurate. The investigation relating to the origination, collection and securitization of non-prime auto loans and securities transactions by the Office of the Attorney General remains ongoing. We are cooperating with the inquiry and cannot predict the eventual scope, duration or outcome at this time. As a result, we are unable to estimate the reasonably possible loss or range of reasonably possible loss arising from this investigation. An adverse ultimate disposition in any action to which we are a party or otherwise subject could have a material adverse impact on our financial position, liquidity and results of operations. Lease Commitments We lease office space and office equipment. We expect that in the normal course of business, leases will be renewed or replaced by other leases. Total rental expense on all operating leases was $1.8 million for 2019 , $2.2 million for 2018 , and $1.5 million for 2017 . Contingent rentals under the operating leases were insignificant. Our total minimum future lease commitments under operating leases as of December 31, 2019 are as follows: (In millions) Year Minimum Future 2020 $ 1.6 2021 1.2 2022 0.6 2023 — 2024 — Total $ 3.4

Quarterly Financial Data

Quarterly Financial Data	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data	QUARTERLY FINANCIAL DATA (unaudited) The following quarterly financial data for the years ended December 31, 2019 and 2018 has been prepared in accordance with GAAP: (In millions, except per share data) 2019 Quarters Ended Income Statement Data March 31 June 30 September 30 December 31 Revenue $ 353.8 $ 370.6 $ 378.7 $ 385.9 Income before provision for income taxes 206.3 215.3 219.1 215.2 Net income 164.4 164.4 165.4 161.9 Net income per share (1): Basic $ 8.67 $ 8.68 $ 8.73 $ 8.63 Diluted $ 8.65 $ 8.68 $ 8.73 $ 8.60 (In millions, except per share data) 2018 Quarters Ended Income Statement Data March 31 June 30 September 30 December 31 Revenue $ 295.6 $ 315.4 $ 332.0 $ 342.8 Income before provision for income taxes 157.7 198.0 198.4 201.0 Net income 120.1 151.0 151.0 151.9 Net income per share (1): Basic $ 6.18 $ 7.76 $ 7.76 $ 7.82 Diluted $ 6.17 $ 7.75 $ 7.75 $ 7.79 (1) Basic and diluted net income per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted net income per share.

Subsequent Events (Notes)

Subsequent Events (Notes)	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS On January 17, 2020, we used a portion of the net proceeds from the 2024 senior notes to redeem the remaining $151.8 million outstanding principal amount of the 2021 senior notes. For additional information regarding this transaction, see Note 9 to these consolidated financial statements.

Summary Of Significant Accoun_2

Summary Of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Principles Of Consolidation	Principles of Consolidation The consolidated financial statements include our accounts and our wholly-owned subsidiaries. All significant intercompany transactions have been eliminated. Our primary subsidiaries as of December 31, 2019 are: Buyer’s Vehicle Protection Plan, Inc. (“BVPP”), Vehicle Remarketing Services, Inc. (“VRS”), VSC Re Company (“VSC Re”), CAC Warehouse Funding Corporation II, CAC Warehouse Funding LLC IV, CAC Warehouse Funding LLC V, CAC Warehouse Funding LLC VI, CAC Warehouse Funding LLC VII, CAC Warehouse Funding LLC VIII, Credit Acceptance Funding LLC 2016-3, Credit Acceptance Funding LLC 2017-1, Credit Acceptance Funding LLC 2017-2, Credit Acceptance Funding LLC 2017-3, Credit Acceptance Funding LLC 2018-1, Credit Acceptance Funding LLC 2018-2 and Credit Acceptance Funding LLC 2018-3, Credit Acceptance Funding LLC 2019-1, Credit Acceptance Funding LLC 2019-2 and Credit Acceptance Funding LLC 2019-3.
Business Segment Information	Business Segment Information We currently operate in one reportable segment which represents our core business of offering financing programs that enable Dealers to sell vehicles to consumers regardless of their credit history. For information regarding our one reportable segment and related entity wide disclosures, see Note 15 to the consolidated financial statements.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The accounts which are subject to significant estimation include the allowance for credit losses, finance charge revenue, premiums earned, contingencies, and uncertain tax positions. Actual results could materially differ from those estimates.
Cash And Cash Equivalents And Restricted Cash And Cash Equivalents	Cash and Cash Equivalents and Restricted Cash and Cash Equivalents Cash equivalents consist of readily marketable securities with original maturities at the date of acquisition of three months or less. As of December 31, 2019 and 2018 , we had $ 186.1 million and $ 25.1 million , respectively, in cash and cash equivalents that were not insured by the Federal Deposit Insurance Corporation (“FDIC”). Restricted cash and cash equivalents consist of cash pledged as collateral for secured financings and cash held in a trust for future vehicle service contract claims. As of December 31, 2019 and 2018 , we had $ 326.7 million and $ 303.0 million , respectively, in restricted cash and cash equivalents that were not insured by the FDIC. The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents reported in our consolidated balance sheets to the total shown in our consolidated statements of cash flows: (In millions) As of December 31, 2019 2018 2017 Cash and cash equivalents $ 187.4 $ 25.7 $ 8.2 Restricted cash and cash equivalents 330.3 303.6 255.6 Total cash and cash equivalents and restricted cash and cash equivalents $ 517.7 $ 329.3 $ 263.8
Restricted Securities Available For Sale	Restricted Securities Available for Sale Restricted securities available for sale consist of amounts held in a trust for future vehicle service contract claims. We determine the appropriate classification of our investments in debt securities at the time of purchase and reevaluate such determinations at each balance sheet date. Debt securities for which we do not have the intent or ability to hold to maturity are classified as available for sale, and stated at fair value with unrealized gains and losses, net of income taxes included in the determination of comprehensive income and reported as a component of shareholders’ equity.
Loans Receivable And Allowance For Credit Losses	Loans Receivable and Allowance for Credit Losses Consumer Loan Assignment. For legal purposes, a Consumer Loan is considered to have been assigned to us after the following has occurred: • the consumer and Dealer have signed a Consumer Loan contract; and • we have received the executed Consumer Loan contract and supporting documentation in either physical or electronic form. For accounting and financial reporting purposes, a Consumer Loan is considered to have been assigned to us after the following has occurred: • the Consumer Loan has been legally assigned to us; and • we have made a funding decision and generally have provided funding to the Dealer in the form of either an advance under the Portfolio Program or one-time purchase payment under the Purchase Program. Portfolio Segments and Classes. We are considered to be a lender to our Dealers for Consumer Loans assigned under our Portfolio Program and a purchaser of Consumer Loans assigned under our Purchase Program. As a result, our Loan portfolio consists of two portfolio segments: Dealer Loans and Purchased Loans. Each portfolio segment is comprised of one class of Consumer Loan assignments, which is Consumer Loans originated by Dealers to finance purchases of vehicles and related ancillary products by consumers with impaired or limited credit histories. Dealer Loans . Amounts advanced to Dealers for Consumer Loans assigned under the Portfolio Program are recorded as Dealer Loans and are aggregated by Dealer for purposes of recognizing revenue and evaluating impairment. We account for Dealer Loans based on forecasted cash flows instead of contractual cash flows as we do not expect to collect all of the contractually specified amounts due to the credit quality of the underlying Consumer Loans. The outstanding balance of each Dealer Loan included in Loans receivable is comprised of the following: • the aggregate amount of all cash advances paid; • finance charges; • Dealer Holdback payments; • accelerated Dealer Holdback payments; and • recoveries. Less: • collections (net of certain collection costs); • write-offs; and • transfers. An allowance for credit losses is maintained at an amount that reduces the net asset value (Dealer Loan balance less the allowance) to the value of forecasted future cash flows discounted at the yield established at the time of assignment. This allowance calculation is completed for each individual Dealer. Future cash flows are comprised of estimated future collections on the Consumer Loans, less any estimated Dealer Holdback payments. We write off Dealer Loans once there are no forecasted future cash flows on any of the associated Consumer Loans, which generally occurs 120 months after the last Consumer Loan assignment. Future collections on Dealer Loans are forecasted for each individual Dealer based on the historical performance of Consumer Loans with similar characteristics, adjusted for recent trends in payment patterns. Dealer Holdback is forecasted for each individual Dealer based on the expected future collections and current advance balance of each Dealer Loan. Cash flows from any individual Dealer Loan are often different from estimated cash flows at the time of assignment. If such difference is favorable, the difference is recognized prospectively into income over the remaining life of the Dealer Loan through a yield adjustment. If such difference is unfavorable, a provision for credit losses is recorded immediately as a current period expense and a corresponding allowance for credit losses is established. Because differences between estimated cash flows at the time of assignment and actual cash flows occur often, an allowance is required for a significant portion of our Dealer Loan portfolio. An allowance for credit losses does not necessarily indicate that a Dealer Loan is unprofitable, and seldom are cash flows from a Dealer Loan insufficient to repay the initial amounts advanced to the Dealer. Purchased Loans . Amounts paid to Dealers for Consumer Loans assigned under the Purchase Program are recorded as Purchased Loans and are aggregated into pools based on the month of purchase for purposes of recognizing revenue and evaluating impairment. We account for Purchased Loans based on forecasted cash flows instead of contractual cash flows as we do not expect to collect all of the contractually specified amounts due to the credit quality of the assigned Consumer Loans. The outstanding balance of each Purchased Loan pool included in Loans receivable is comprised of the following: • the aggregate amount of all amounts paid during the month of purchase to purchase Consumer Loans from Dealers; • finance charges; • recoveries; and • transfers. Less: • collections (net of certain collection costs); and • write-offs. An allowance for credit losses is maintained at an amount that reduces the net asset value (Purchased Loan pool balance less the allowance) to the value of forecasted future cash flows discounted at the yield established at the time of assignment. This allowance calculation is completed for each individual monthly pool of Purchased Loans. Future cash flows are comprised of estimated future collections on the pool of Purchased Loans. We write off pools of Purchased Loans once there are no forecasted future cash flows on any of the Purchased Loans included in the pool, which generally occurs 120 months after the month of purchase. Future collections on Purchased Loans are forecasted for each individual pool based on the historical performance of Consumer Loans with similar characteristics, adjusted for recent trends in payment patterns. Cash flows from any individual pool of Purchased Loans are often different from estimated cash flows at the time of assignment. If such difference is favorable, the difference is recognized prospectively into income over the remaining life of the pool of Purchased Loans through a yield adjustment. If such difference is unfavorable, a provision for credit losses is recorded immediately as a current period expense and a corresponding allowance for credit losses is established. Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance to Purchased Loans in the period this forfeiture occurs. During the fourth quarter of 2017, we enhanced our accounting methodology for transferring loans. Beginning in the fourth quarter of 2017, we: • transfer the related Dealer Loan allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs; and • aggregate these Purchased Loans by Dealer for purposes of recognizing revenue and evaluating impairment. Prior to the fourth quarter of 2017, we: • reversed the Dealer Loan allowance for credit losses balance through Dealer Loan provision for credit losses and established a new allowance for credit losses in Purchased Loans through Purchased Loan provision for credit losses; and • aggregated these Purchased Loans by month of purchase for purposes of recognizing revenue and evaluating impairment. Credit Quality. Substantially all of the Consumer Loans assigned to us are made to individuals with impaired or limited credit histories or higher debt-to-income ratios than are permitted by traditional lenders. Consumer Loans made to these individuals generally entail a higher risk of delinquency, default and repossession and higher losses than loans made to consumers with better credit. Since most of our revenue and cash flows are generated from these Consumer Loans, our ability to accurately forecast Consumer Loan performance is critical to our business and financial results. At the time the Consumer Loan is submitted to us for assignment, we forecast future expected cash flows from the Consumer Loan. Based on these forecasts, an advance or one-time purchase payment is made to the related Dealer at a price designed to maximize economic profit, a non-GAAP financial measure that considers our return on capital, our cost of capital and the amount of capital invested. We monitor and evaluate the credit quality of Consumer Loans on a monthly basis by comparing our current forecasted collection rates to our initial expectations. We use a statistical model that considers a number of credit quality indicators to estimate the expected collection rate for each Consumer Loan at the time of assignment. The credit quality indicators considered in our model include attributes contained in the consumer’s credit bureau report, data contained in the consumer’s credit application, the structure of the proposed transaction, vehicle information and other factors. We continue to evaluate the expected collection rate of each Consumer Loan subsequent to assignment primarily through the monitoring of consumer payment behavior. Our evaluation becomes more accurate as the Consumer Loans age, as we use actual performance data in our forecast. Since all known, significant credit quality indicators have already been factored into our forecasts and pricing, we are not able to use any specific credit quality indicators to predict or explain variances in actual performance from our initial expectations. Any variances in performance from our initial expectations are the result of Consumer Loans performing differently than historical Consumer Loans with similar characteristics. We periodically adjust our statistical pricing model for new trends that we identify through our evaluation of these forecasted collection rate variances. When overall forecasted collection rates underperform our initial expectations, the decline in forecasted collections has a more adverse impact on the profitability of the Purchased Loans than on the profitability of the Dealer Loans. For Purchased Loans, the decline in forecasted collections is absorbed entirely by us. For Dealer Loans, the decline in the forecasted collections is substantially offset by a decline in forecasted payments of Dealer Holdback. Methodology Changes. During 2017, we enhanced our methodology for transferring Loans and updated our net cash flow timing model. For additional information regarding these methodology changes, see Note 5 to the consolidated financial statements. For the three year period ended December 31, 2019 , we did not make any other methodology changes for Loans that had a material impact on our financial statements.
Property And Equipment	Property and Equipment Purchases of property and equipment are recorded at cost. Depreciation is provided on a straight-line basis over the estimated useful life of the asset. Estimated useful lives are generally as follows: buildings – 40 years , building improvements – 10 years , data processing equipment – 3 years , software – 5 years , office furniture and equipment – 7 years , and leasehold improvements – the lesser of the lease term or 7 years . The cost of assets sold or retired and the related accumulated depreciation are removed from the balance sheet at the time of disposition and any resulting gain or loss is included in operations. Maintenance, repairs and minor replacements are charged to operations as incurred; major replacements and improvements are capitalized. We evaluate long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Costs incurred during the application development stage of software developed for internal use are capitalized and generally depreciated on a straight-line basis over five years . Costs incurred to maintain existing software are expensed as incurred. For additional information regarding our property and equipment, see Note 6 to the consolidated financial statements.
Deferred Debt Issuance Costs	Deferred Debt Issuance Costs Deferred debt issuance costs associated with secured financings and senior notes are included as a deduction from the carrying amount of the related debt liability, and deferred debt issuance costs associated with our revolving secured line of credit are included in other assets. Expenses associated with the issuance of debt instruments are capitalized and amortized as interest expense over the term of the debt instrument using the effective interest method for asset-backed secured financings (“Term ABS”) and senior notes and the straight-line method for lines of credit and revolving secured warehouse (“Warehouse”) facilities. For additional information regarding deferred debt issuance costs, see Note 9 to the consolidated financial statements.
Derivative Instruments	Derivative Instruments We rely on various sources of financing, some of which contain floating rates of interest and expose us to risks associated with increases in interest rates. We manage such risk primarily by entering into interest rate cap agreements (“derivative instruments”). These derivative instruments are not designated as hedges, and changes in their fair value increase or decrease interest expense. We recognize derivative instruments as either other assets or accounts payable and accrued liabilities on our consolidated balance sheets. For additional information regarding our derivative instruments, see Note 10 to the consolidated financial statements.
Finance Charges	Finance Charges Finance charges is comprised of: (1) servicing fees earned as a result of servicing Consumer Loans assigned to us by Dealers under the Portfolio Program; (2) finance charge income from Purchased Loans; (3) fees earned from our third party ancillary product offerings; (4) monthly program fees charged to Dealers under the Portfolio Program; and (5) fees associated with certain Loans. We recognize finance charges under the interest method such that revenue is recognized on a level-yield basis based upon forecasted cash flows. For Dealer Loans only, certain direct origination costs such as salaries and credit reports are deferred and the net costs are recognized as an adjustment to finance charges over the life of the related Dealer Loan on a level-yield basis. We provide Dealers the ability to offer vehicle service contracts to consumers through our relationships with Third Party Providers (“TPPs”). A vehicle service contract provides the consumer protection by paying for the repair or replacement of certain components of the vehicle in the event of a mechanical failure. The retail price of the vehicle service contract is included in the principal balance of the Consumer Loan. The wholesale cost of the vehicle service contract is paid to the TPP, net of an administrative fee retained by us. We recognize our fee as part of finance charges on a level-yield basis based upon forecasted cash flows. The difference between the wholesale cost and the retail price to the consumer is paid to the Dealer as a commission. Under the Portfolio Program, the wholesale cost of the vehicle service contract and the commission paid to the Dealer are charged to the Dealer’s advance balance. TPPs process claims on vehicle service contracts that are underwritten by third party insurers. We bear the risk of loss for claims on certain vehicle service contracts that are reinsured by us. We market the vehicle service contracts directly to our Dealers. We provide Dealers the ability to offer Guaranteed Asset Protection (“GAP”) to consumers through our relationships with TPPs. GAP provides the consumer protection by paying the difference between the loan balance and the amount covered by the consumer’s insurance policy in the event of a total loss of the vehicle due to severe damage or theft. The retail price of GAP is included in the principal balance of the Consumer Loan. The wholesale cost of GAP is paid to the TPP, net of an administrative fee retained by us. We recognize our fee as part of finance charges on a level-yield basis based upon forecasted cash flows. The difference between the wholesale cost and the retail price to the consumer is paid to the Dealer as a commission. Under the Portfolio Program, the wholesale cost of GAP and the commission paid to the Dealer are charged to the Dealer’s advance balance. TPPs process claims on GAP contracts that are underwritten by third party insurers. Program fees represent monthly fees charged to Dealers for access to our Credit Approval Processing System (“CAPS”); administration, servicing and collection services offered by us; documentation related to or affecting our program; and all tangible and intangible property owned by Credit Acceptance. We charge a monthly fee of $ 599 to Dealers participating in our Portfolio Program and we collect it from future Dealer Holdback payments. As a result, we record program fees under the Portfolio Program as a yield adjustment, recognizing these fees as finance charge revenue over the forecasted net cash flows of the Dealer Loan.
Reinsurance	Reinsurance VSC Re, our wholly-owned subsidiary, is engaged in the business of reinsuring coverage under vehicle service contracts sold to consumers by Dealers on vehicles financed by us. VSC Re currently reinsures vehicle service contracts that are offered through one of our TPPs. Vehicle service contract premiums, which represent the selling price of the vehicle service contract to the consumer, less fees and certain administrative costs, are contributed to a trust account controlled by VSC Re. These premiums are used to fund claims covered under the vehicle service contracts. VSC Re is a bankruptcy remote entity. As such, our exposure to fund claims is limited to the trust assets controlled by VSC Re and our net investment in VSC Re. Premiums from the reinsurance of vehicle service contracts are recognized over the life of the policy in proportion to expected costs of servicing those contracts. Expected costs are determined based on our historical claims experience. Claims are expensed through a provision for claims in the period the claim was incurred. Capitalized acquisition costs are comprised of premium taxes and are amortized as general and administrative expense over the life of the contracts in proportion to premiums earned. We have consolidated the trust within our financial statements based on our determination of the following: • We have a variable interest in the trust. We have a residual interest in the assets of the trust, which is variable in nature, given that it increases or decreases based upon the actual loss experience of the related service contracts. In addition, VSC Re is required to absorb any losses in excess of the trust's assets. • The trust is a variable interest entity. The trust has insufficient equity at risk as no parties to the trust were required to contribute assets that provide them with any ownership interest. • We are the primary beneficiary of the trust. We control the amount of premiums written and placed in the trust through Consumer Loan assignments under our Programs, which is the activity that most significantly impacts the economic performance of the trust. We have the right to receive benefits from the trust that could potentially be significant. In addition, VSC Re has the obligation to absorb losses of the trust that could potentially be significant.
Stock-Based Compensation Plans	Stock-Based Compensation Plans We have stock-based compensation plans for team members and non-employee directors, which are described more fully in Note 14 to the consolidated financial statements. We apply a fair-value-based measurement method in accounting for stock-based compensation plans and recognize stock-based compensation expense over the requisite service period of the grant as salaries and wages expense.
Employee Benefit Plan	Employee Benefit Plan We sponsor a 401(k) plan that covers substantially all of our team members. We offer matching contributions to the 401(k) plan based on each enrolled team members’ eligible annual gross pay (subject to statutory limitations). Our matching contribution rate is equal to 100% of the first 4% participants contribute and an additional 50% of the next 2% participants contribute, for a maximum matching contribution of 5% of each participant’s eligible annual gross pay. For the years ended December 31, 2019 , 2018 and 2017 , we recognized compensation expense of $ 7.1 million , $ 5.3 million , and $ 4.6 million , respectively, for our matching contributions to the plan.
Income Taxes	Income Taxes Provisions for federal, state and foreign income taxes are calculated on reported pre-tax earnings based on current tax law and also include, in the current period, the cumulative effect of any changes in tax rates from those used previously in determining deferred tax assets and liabilities. Such provisions differ from the amounts currently receivable or payable because certain items of income and expense are recognized in different time periods for financial reporting purposes than for income tax purposes. Deferred income tax balances reflect the effects of temporary differences between the carrying amounts of assets and liabilities and their tax bases and are stated at enacted tax rates expected to be in effect when taxes are actually paid or recovered. We follow a two-step approach for recognizing uncertain tax positions. First, we evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more-likely-than-not that the position will be sustained upon examination, including resolution of related appeals or litigation processes, if any. Second, for positions that we determine are more-likely-than-not to be sustained, we recognize the tax benefit as the largest benefit that has a greater than 50% likelihood of being sustained. We establish a reserve for uncertain tax positions liability that is comprised of unrecognized tax benefits and related interest. We consider many factors when evaluating and estimating our tax positions and tax benefits, which may require periodic adjustments and which may not accurately anticipate actual outcomes. We recognize interest and penalties related to uncertain tax positions in provision for income taxes. For additional information regarding our income taxes, see Note 11 to the consolidated financial statements.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred. Advertising expenses were $ 0.3 million for the year ended December 31, 2019 , $0.2 million for the year ended December 31, 2018 and $0.4 million for the year ended December 31, 2017 .
New Accounting Updates	New Accounting Update Adopted During the Current Year Leases. In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, which required lessees to recognize a right-of-use asset and related lease liability for leases classified as operating leases at the commencement date that have lease terms of more than 12 months. This ASU retains the classification distinction between finance leases and operating leases. The standard required application using a retrospective transition method. Our population of leases consists of operating leases for office space and office equipment. The adoption of ASU 2016-02 on January 1, 2019 required us to record a $2.7 million right-of-use asset and a $2.8 million lease liability on our consolidated balance sheets as of December 31, 2019. The right-of-use asset and the lease liability were recognized within other assets and accounts payable and accrued liabilities, respectively, in our consolidated balance sheets. The adoption of ASU 2016-02 did not materially change the recognition of operating lease expense in our consolidated statements of income. New Accounting Updates Not Yet Adopted Accounting for Costs of Implementing Cloud Computing. In August 2018, the FASB issued ASU 2018-15, which reduces complexity in the accounting for costs of implementing a cloud computing service arrangement. This standard aligns the accounting for implementation costs of hosting arrangements, regardless of whether they convey a license to the hosted software. Under the current guidance, the classification of an arrangement as either a software license or a service contract determines whether or not we capitalize implementation costs. If an arrangement meets the definition of a software license, implementation costs are capitalized. If an arrangement meets the definition of a service contract, implementation costs are expensed as incurred. Under the new guidance, implementation costs will be capitalized regardless of their classification. ASU 2018-15 is effective for fiscal years, and interim periods, beginning after December 15, 2019. Early application is permitted, but we have not yet adopted ASU 2018-15. The adoption of ASU 2018-15 will change how we account for our cloud computing arrangements. However, we do not believe that its adoption will have a material impact on our consolidated financial statements and related disclosures. Measurement of Credit Losses on Financial Instruments. In June 2016, the FASB issued ASU 2016-13, which included an impairment model (known as the current expected credit loss (“CECL”) model) that is based on expected losses rather than incurred losses. Under the new guidance, an entity recognizes an allowance for credit losses based on the difference between contractual future net cash flows and its estimate of expected future net cash flows. The new guidance also changes the scope of the special accounting for loans acquired with significant credit deterioration. ASU 2016-13 is effective for fiscal years, and interim periods, beginning after December 15, 2019. Early application is permitted, but we have not yet adopted ASU 2016-13. We believe the adoption of ASU 2016-13 will have a material impact on our consolidated financial statements and related disclosures as it will change our accounting policies for Loans. Application of CECL to Existing Loans We believe that Loans outstanding prior to the adoption date will qualify for transition relief under ASU 2016-13 and will be accounted for as purchased financial assets with credit deterioration (“PCD Method”). Under the PCD Method, on the adoption date, we will: • calculate an effective interest rate based on expected future net cash flows; and • increase the Loans receivable and related allowance for credit losses balances by the present value of the difference between contractual future net cash flows and expected future net cash flows discounted at the effective interest rate. This “gross-up” will not impact the net carrying amount of Loans (Loans receivable less allowance for credit losses) or net income. For each reporting period subsequent to adoption, we will: • recognize finance charge revenue using the effective interest rate that was calculated on the adoption date based on expected future net cash flows; and • adjust the allowance for credit losses so that the net carrying amount of each Loan equals the present value of expected future net cash flows discounted at the effective interest rate. The adjustment to the allowance for credit losses will be recognized as either provision for credit losses expense or a reversal of provision for credit losses expense. Application of CECL to Future Loans We believe that Consumer Loans assigned subsequent to the adoption of ASU 2016-13 will not qualify for the PCD Method and will be accounted for as originated financial assets (“Originated Method”). While the cash flows we expect to collect at the time of assignment are significantly lower than the contractual cash flows owed to us due to credit quality, our Loans do not qualify for the PCD Method because the assignment of the Consumer Loan occurs a moment after the Consumer Loan is originated by the Dealer, so “a more-than-insignificant deterioration in credit quality since origination” has not occurred. In addition, Dealer Loans also do not qualify for the PCD Method because Consumer Loans assigned under the Portfolio Program are considered to be advances under Dealer Loans originated by us rather than Consumer Loans purchased by us. Under the Originated Method, at the time of assignment, we will: • calculate the effective interest rate based on contractual future net cash flows; • record a Loan receivable equal to the advance paid to the Dealer under the Portfolio Program or purchase price paid to the Dealer under the Purchase Program; and • record an allowance for credit losses equal to the difference between the initial Loan receivable balance and the present value of expected future net cash flows discounted at the effective interest rate. The initial allowance for credit losses will be recognized as provision for credit losses expense. For each reporting period subsequent to assignment, we will: • recognize finance charge revenue using the effective interest rate that was calculated at the time of assignment based on contractual future net cash flows; and • adjust the allowance for credit losses so that the net carrying amount of each Loan equals the present value of expected future net cash flows discounted at the effective interest rate. The adjustment to the allowance for credit losses will be recognized as either provision for credit losses expense or a reversal of provision for credit losses expense. We believe the Originated Method will result in financial reporting that is inconsistent with the economics of our Loans as: • the effective interest rate will be significantly inflated for contractual amounts that were not expected to be collected at the time of assignment; and • the provision for credit losses expense recognized at the time of assignment does not represent an economic loss to us. The net Loan income (finance charge revenue less provision for credit losses expense) that we will recognize over the life of a Loan equals the cash we collect from the underlying Consumer Loan less the cash we pay to the Dealer. While the total amount of net Loan income we will recognize over the life of the Loan is not impacted by the new guidance, the timing of when we will recognize this income changes significantly. We believe that recognizing net Loan income on a level-yield basis over the life of the Loan based on expected future net cash flows matches the economics of our business. The Originated Method diverges from economic reality by requiring us to recognize a significant provision for credit losses expense at the time of assignment for contractual amounts we never expected to realize and finance charge revenue in subsequent periods that is significantly in excess of our expected yields. Evaluation of the Fair Value Option Under ASC 825, Financial Instruments, we have the ability to choose to measure Loans at fair value on an instrument-by-instrument basis at specified election dates, with changes in fair value reported in net income (the fair value option). Dealer Loans are only eligible for fair value election at the time a new active Dealer assigns the first Consumer Loan under the Portfolio Program. All Purchased Loans are eligible for fair value election at the time of assignment. The fair value election may not be revoked once an election is made. In May 2019, the FASB issued ASU 2016-13, which also allows us to irrevocably elect the fair value option for all of our existing Loans upon adoption of CECL. Given that we believe CECL will result in financial reporting that is inconsistent with the economics of our Loans, we evaluated the fair value option as an alternative to CECL. The fair value of our Loans would be determined by calculating the present value of future expected net cash flows estimated by us utilizing a discount rate based on market participant discount rates for comparable investments. While we believe the fair value option would likely result in financial reporting that approximates the economics of our Loans in a stable rate environment, this option could cause our reported results to be volatile in periods when interest rates are rapidly changing. Based on our evaluation, we intend to account for our Loans under CECL and not elect the fair value option based on the following: • We want to minimize volatility in our reported results related to a changing interest rate environment. In addition, we believe the election of the fair value option could materially adversely affect our financial position, liquidity and results of operations in a financial crisis period due to the impact of rapidly increasing market participant discount rates on fair value. • We have modified our revolving secured line of credit and warehouse facilities so that the adoption of CECL will not materially impact the amount we are able to borrow under these facilities or materially impact our ability to comply with the financial covenants in these facilities. We believe that we will be able to structure our Term ABS financings issued after the adoption of CECL so that the amount that we will be able to borrow will not be materially impacted. • We believe we will be able to quantify and explain to shareholders how CECL diverges from economic reality. Estimated Financial Statement Impact of the Adoption of CECL We have developed, refined and validated CECL models that we ran in parallel with our current accounting throughout 2019. Provided below are our best estimates of the expected financial statement impact of the adoption of CECL based on our implementation efforts to date. These estimates are subject to further refinement as we finalize reviews of models, methodologies and judgements. Upon adoption of CECL on January 1, 2020, we increased our Loans receivable and the related allowance for credit losses balances by approximately $2.5 billion each. These increases did not impact the net carrying amount of Loans (Loans receivable less allowance for credit losses) or net income. This estimate reflects the impact of our adoption of a partial write-off policy on January 1, 2020 in connection with our adoption of CECL. Under our partial write-off policy, we write off the amount of the outstanding balance of the Loan, if any, that exceeds 200% of the present value of future expected net cash flows as we deem this amount to be uncollectable. For Consumer Loans assigned subsequent to the adoption of CECL on January 1, 2020, the total amount of net Loan income we will recognize over the life of the Loan is not impacted by the adoption of CECL, but the timing of when we will recognize this income changes significantly. The provision for credit losses expense recorded at the time of assignment will vary based on the characteristics of each Consumer Loan. Based on recent Consumer Loan assignments, we estimate the provision for credit losses expense recorded at the time of assignment will be approximately 12% to 15% of the amount of the Loan at the time of assignment. An equivalent amount will be recorded as additional finance charge revenue over the life of the Loan. To the extent the characteristics of future Consumer Loan assignments differ from recent Consumer Loan assignments, the actual amount of provision for credit losses expense recorded at the time of assignment under CECL could vary from this estimate, and such variance could be material. Given the significant change in timing of net Loan income recognition for new Consumer Loan assignments discussed above, we believe the amount of net income that we will report in 2020 under CECL will be significantly lower than what would be reported under current GAAP. The ultimate financial statement impact of CECL will depend on Consumer Loan assignment volume and the percentage of Consumer Loans assigned to us as Purchased Loans, the size and composition of our Loan portfolio, the Loan portfolio’s credit quality and economic conditions at the time of adoption as well as any refinements to our models, methodologies and judgements. Using reasonable estimates for the preceding factors, we believe net income for the year ending December 31, 2020 will be approximately 30% to 60% lower under CECL than what would be reported under current GAAP, with the greatest impact occurring in the quarter of adoption (approximately 50% to 80% lower). To the extent those factors differ from our current estimates, the actual impact of CECL on net income for the year ending December 31, 2020 could vary from this expectation, and such variance could be material. Simplifying the Accounting for Income Taxes. In December 2019, the FASB issued ASU 2019-12, which intends to enhance and simplify various aspects of the income tax accounting guidance, including requirements impacting the allocation of income tax expense to certain legal entities and interim-period accounting for enacted changes in tax law. ASU 2019-12 is effective for fiscal years, and interim periods, beginning after December 15, 2020. Early application is permitted, but we have not yet adopted ASU 2019-12. We are currently assessing the impact the adoption of ASU 2019-12 will have on our consolidated financial statements and related disclosures.
Subsequent Events	Subsequent Events We have evaluated events and transactions occurring subsequent to the consolidated balance sheet date of December 31, 2019 for items that could potentially be recognized or disclosed in these financial statements. For additional information regarding subsequent events, see Note 18 to these consolidated financial statements.

Description Of Business (Tables

Description Of Business (Tables)	12 Months Ended
	Dec. 31, 2019
Description Of Business [Abstract]
Financing Receivable Credit Quality Indicators [Table Text Block]	The following table shows the percentage of Consumer Loans assigned to us with either FICO ® scores below 650 or no FICO ® scores: For the Years Ended December 31, Consumer Loan Assignment Volume 2019 2018 2017 Percentage of total unit volume with either FICO ® scores below 650 or no FICO ® scores 95.9 % 95.6 % 95.6 %
Schedule Of Percentage Of Consumer Loans Assigned Based On Unit and Dollar Volumes	The following table shows the percentage of Consumer Loans assigned to us as Dealer Loans and Purchased Loans for each of the last three years: Unit Volume Dollar Volume (1) For the Years Ended December 31, Dealer Loans Purchased Loans Dealer Loans Purchased Loans 2017 72.5 % 27.5 % 68.5 % 31.5 % 2018 69.7 % 30.3 % 67.2 % 32.8 % 2019 67.2 % 32.8 % 64.3 % 35.7 % (1) Represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program and one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program. Payments of Dealer Holdback (as defined below) and accelerated Dealer Holdback are not included.

Summary Of Significant Accoun_3

Summary Of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Schedule of Cash and Cash Equivalents [Table Text Block]	The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents reported in our consolidated balance sheets to the total shown in our consolidated statements of cash flows: (In millions) As of December 31, 2019 2018 2017 Cash and cash equivalents $ 187.4 $ 25.7 $ 8.2 Restricted cash and cash equivalents 330.3 303.6 255.6 Total cash and cash equivalents and restricted cash and cash equivalents $ 517.7 $ 329.3 $ 263.8

Fair Value Of Financial Instr_2

Fair Value Of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule Of Comparison Of The Carrying Value And Estimated Fair Value Of These Financial Instruments	A comparison of the carrying amount and estimated fair value of these financial instruments is as follows: (In millions) As of December 31, 2019 2018 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Assets Cash and cash equivalents $ 187.4 $ 187.4 $ 25.7 $ 25.7 Restricted cash and cash equivalents 330.3 330.3 303.6 303.6 Restricted securities available for sale 59.3 59.3 58.6 58.6 Loans receivable, net 6,685.2 6,777.2 5,763.3 5,855.1 Liabilities Revolving secured line of credit $ — $ — $ 171.9 $ 171.9 Secured financing 3,339.7 3,397.5 3,092.7 3,100.9 Senior notes 1,187.8 1,257.6 544.4 556.3 Mortgage note 11.3 11.3 11.9 11.9
Schedule Of Assets And Liabilities, Measured At Fair Value On A Recurring Basis	The following table provides the level of measurement used to determine the fair value for each of our financial instruments measured or disclosed at fair value: (In millions) As of December 31, 2019 Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents (1) $ 187.4 $ — $ — $ 187.4 Restricted cash and cash equivalents (1) 330.3 — — 330.3 Restricted securities available for sale (2) 47.5 11.8 — 59.3 Loans receivable, net (1) — — 6,777.2 6,777.2 Liabilities Revolving secured line of credit (1) $ — $ — $ — $ — Secured financing (1) — 3,397.5 — 3,397.5 Senior notes (1) 1,257.6 — — 1,257.6 Mortgage note (1) — 11.3 — 11.3 (In millions) As of December 31, 2018 Level 1 Level 2 Level 3 Total Fair Value Assets Cash and cash equivalents (1) $ 25.7 $ — $ — $ 25.7 Restricted cash and cash equivalents (1) 303.6 — — 303.6 Restricted securities available for sale (2) 47.9 10.7 — 58.6 Loans receivable, net (1) — — 5,855.1 5,855.1 Liabilities Revolving secured line of credit (1) $ — $ 171.9 $ — $ 171.9 Secured financing (1) — 3,100.9 — 3,100.9 Senior notes (1) 556.3 — — 556.3 Mortgage note (1) — 11.9 — 11.9 (1) Measured at amortized cost with fair value disclosed. (2) Measured at fair value on a recurring basis.

Restricted Securities Availab_2

Restricted Securities Available For Sale (Tables)	12 Months Ended
	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Schedule Of Restricted Securities Available For Sale	Restricted securities available for sale consist of the following: (In millions) As of December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 25.3 $ 0.5 $ — $ 25.8 U.S. Government and agency securities 21.3 0.4 — 21.7 Asset-backed securities 11.2 0.1 — 11.3 Mortgage-backed securities 0.5 — — 0.5 Total restricted securities available for sale $ 58.3 $ 1.0 $ — $ 59.3 (In millions) As of December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Corporate bonds $ 23.4 $ — $ (0.2 ) $ 23.2 U.S. Government and agency securities 24.8 0.1 (0.2 ) 24.7 Asset-backed securities 9.4 — (0.1 ) 9.3 Mortgage-backed securities 1.4 — — 1.4 Total restricted securities available for sale $ 59.0 $ 0.1 $ (0.5 ) $ 58.6
Schedule Of Restricted Securities Available For Sale By Aging Catagory	The fair value and gross unrealized losses for restricted securities available for sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows: (In millions) Securities Available for Sale with Gross Unrealized Losses as of December 31, 2019 Less than 12 Months 12 Months or More Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Total Estimated Fair Value Total Gross Unrealized Losses Corporate bonds $ 1.4 $ — $ — $ — $ 1.4 $ — U.S. Government and agency securities 1.9 — — — 1.9 — Asset-backed securities 1.9 — — — 1.9 — Mortgage-backed securities — — — — — — Total restricted securities available for sale $ 5.2 $ — $ — $ — $ 5.2 $ — (In millions) Securities Available for Sale with Gross Unrealized Losses as of December 31, 2018 Less than 12 Months 12 Months or More Estimated Gross Estimated Gross Total Estimated Total Gross Corporate bonds $ 12.0 $ (0.1 ) $ 6.5 $ (0.1 ) $ 18.5 $ (0.2 ) U.S. Government and agency securities 2.2 — 10.5 (0.2 ) 12.7 (0.2 ) Asset-backed securities 4.7 — 3.3 (0.1 ) 8.0 (0.1 ) Mortgage-backed securities — — 1.4 — 1.4 — Total restricted securities available for sale $ 18.9 $ (0.1 ) $ 21.7 $ (0.4 ) $ 40.6 $ (0.5 )
Schedule Of Cost And Estimated Fair Values Of Debt Securities By Contractual Maturity	The cost and estimated fair values of debt securities by contractual maturity were as follows (securities with multiple maturity dates are classified in the period of final maturity). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. (In millions) As of December 31, 2019 2018 Contractual Maturity Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Within one year $ 5.7 $ 5.7 $ 1.7 $ 1.7 Over one year to five years 50.8 51.8 55.1 54.7 Over five years to ten years 1.5 1.5 0.8 0.8 Over ten years 0.3 0.3 1.4 1.4 Total restricted securities available for sale $ 58.3 $ 59.3 $ 59.0 $ 58.6

Loans Receivable (Tables)

Loans Receivable (Tables)	12 Months Ended
	Dec. 31, 2019
Receivables [Abstract]
Schedule Of Loans Receivable	Loans receivable consists of the following: (In millions) As of December 31, 2019 Dealer Loans Purchased Loans Total Loans receivable $ 4,623.3 $ 2,597.9 $ 7,221.2 Allowance for credit losses (428.0 ) (108.0 ) (536.0 ) Loans receivable, net $ 4,195.3 $ 2,489.9 $ 6,685.2 (In millions) As of December 31, 2018 Dealer Loans Purchased Loans Total Loans receivable $ 4,141.0 $ 2,084.2 $ 6,225.2 Allowance for credit losses (378.1 ) (83.8 ) (461.9 ) Loans receivable, net $ 3,762.9 $ 2,000.4 $ 5,763.3
Summary Of Changes In Loans Receivable	A summary of changes in Loans receivable is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Balance, beginning of period $ 4,141.0 $ 2,084.2 $ 6,225.2 New Consumer Loan assignments (1) 2,424.5 1,347.7 3,772.2 Principal collected on Loans receivable (2,049.4 ) (921.8 ) (2,971.2 ) Accelerated Dealer Holdback payments 58.8 — 58.8 Dealer Holdback payments 138.5 — 138.5 Transfers (2) (87.2 ) 87.2 — Write-offs (4.4 ) (0.5 ) (4.9 ) Recoveries (3) 1.5 1.1 2.6 Balance, end of period $ 4,623.3 $ 2,597.9 $ 7,221.2 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Balance, beginning of period $ 3,518.1 $ 1,530.9 $ 5,049.0 New Consumer Loan assignments (1) 2,414.8 1,181.0 3,595.8 Principal collected on Loans receivable (1,873.0 ) (703.7 ) (2,576.7 ) Accelerated Dealer Holdback payments 52.6 — 52.6 Dealer Holdback payments 128.9 — 128.9 Transfers (2) (78.2 ) 78.2 — Write-offs (25.2 ) (3.4 ) (28.6 ) Recoveries (3) 3.0 1.2 4.2 Balance, end of period $ 4,141.0 $ 2,084.2 $ 6,225.2 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Balance, beginning of period $ 3,209.0 $ 998.0 $ 4,207.0 New Consumer Loan assignments (1) 1,968.3 904.8 2,873.1 Principal collected on Loans receivable (1,729.9 ) (459.6 ) (2,189.5 ) Accelerated Dealer Holdback payments 47.1 — 47.1 Dealer Holdback payments 131.6 — 131.6 Transfers (2) (93.1 ) 93.1 — Write-offs (16.4 ) (5.7 ) (22.1 ) Recoveries (3) 1.5 0.3 1.8 Balance, end of period $ 3,518.1 $ 1,530.9 $ 5,049.0 (1) The Dealer Loans amount represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program. The Purchased Loans amount represents one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program. (2) Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs. (3) Represents collections received on previously written off Loans.
Summary Of Changes In Accretable Yield	The excess of expected net cash flows over the outstanding balance of Loans receivable, net is referred to as the accretable yield and is recognized on a level-yield basis as finance charge income over the remaining lives of the Loans. A summary of changes in the accretable yield is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Balance, beginning of period $ 1,283.0 $ 782.5 $ 2,065.5 New Consumer Loan assignments (1) 971.6 561.2 1,532.8 Accretion (2) (897.5 ) (480.7 ) (1,378.2 ) Provision for credit losses 65.9 10.5 76.4 Forecast changes (7.9 ) 22.5 14.6 Transfers (3) (33.3 ) 42.2 8.9 Balance, end of period $ 1,381.8 $ 938.2 $ 2,320.0 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Balance, beginning of period $ 1,088.6 $ 576.9 $ 1,665.5 New Consumer Loan assignments (1) 990.2 488.4 1,478.6 Accretion (2) (816.3 ) (369.3 ) (1,185.6 ) Provision for credit losses 48.0 8.9 56.9 Forecast changes 2.0 40.3 42.3 Transfers (3) (29.5 ) 37.3 7.8 Balance, end of period $ 1,283.0 $ 782.5 $ 2,065.5 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Balance, beginning of period $ 982.6 $ 348.1 $ 1,330.7 New Consumer Loan assignments (1) 803.0 377.9 1,180.9 Accretion (2) (766.6 ) (253.6 ) (1,020.2 ) Provision for credit losses 103.4 25.9 129.3 Forecast changes (5.6 ) 41.7 36.1 Transfers (3) (28.2 ) 36.9 8.7 Balance, end of period $ 1,088.6 $ 576.9 $ 1,665.5 (1) The Dealer Loans amount represents the net cash flows expected at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related advances paid to Dealers. The Purchased Loans amount represents the net cash flows expected at the time of assignment on Consumer Loans assigned under our Purchase Program, less the related one-time payments made to Dealers. (2) Represents finance charges excluding the amortization of deferred direct origination costs for Dealer Loans. (3)
Summary Of Information Related To New Consumer Loan Assignments	Additional information related to new Consumer Loan assignments is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Contractual net cash flows at the time of assignment (1) $ 3,810.6 $ 2,953.3 $ 6,763.9 Expected net cash flows at the time of assignment (2) 3,396.1 1,908.9 5,305.0 Fair value at the time of assignment (3) 2,424.5 1,347.7 3,772.2 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Contractual net cash flows at the time of assignment (1) $ 3,827.4 $ 2,610.7 $ 6,438.1 Expected net cash flows at the time of assignment (2) 3,405.0 1,669.4 5,074.4 Fair value at the time of assignment (3) 2,414.8 1,181.0 3,595.8 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Contractual net cash flows at the time of assignment (1) $ 3,131.6 $ 1,973.7 $ 5,105.3 Expected net cash flows at the time of assignment (2) 2,771.3 1,282.7 4,054.0 Fair value at the time of assignment (3) 1,968.3 904.8 2,873.1 (1) The Dealer Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we would be required to make if we collected all of the contractual repayments. The Purchased Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Purchase Program. (2) The Dealer Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we expected to make. The Purchased Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Purchase Program. (3)
Schedule Of Consumer Loans Forecasted Collection Percentage	The following table compares our forecast of Consumer Loan collection rates as of December 31, 2019 , with the forecasts as of December 31, 2018 , as of December 31, 2017 , and at the time of assignment, segmented by year of assignment: Forecasted Collection Percentage as of (1) Current Forecast Variance from Consumer Loan Assignment Year December 31, 2019 December 31, 2018 December 31, 2017 Initial Forecast December 31, 2018 December 31, 2017 Initial Forecast 2010 77.8 % 77.7 % 77.6 % 73.6 % 0.1 % 0.2 % 4.2 % 2011 74.8 % 74.7 % 74.7 % 72.5 % 0.1 % 0.1 % 2.3 % 2012 73.9 % 73.8 % 73.8 % 71.4 % 0.1 % 0.1 % 2.5 % 2013 73.5 % 73.5 % 73.5 % 72.0 % 0.0 % 0.0 % 1.5 % 2014 71.7 % 71.7 % 71.7 % 71.8 % 0.0 % 0.0 % -0.1 % 2015 65.4 % 65.4 % 65.5 % 67.7 % 0.0 % -0.1 % -2.3 % 2016 64.1 % 64.2 % 64.8 % 65.4 % -0.1 % -0.7 % -1.3 % 2017 64.8 % 65.5 % 65.6 % 64.0 % -0.7 % -0.8 % 0.8 % 2018 65.1 % 65.0 % — 63.6 % 0.1 % — 1.5 % 2019 64.6 % — — 64.0 % — — 0.6 % (1) Represents the total forecasted collections we expect to collect on the Consumer Loans as a percentage of the repayments that we were contractually owed on the Consumer Loans at the time of assignment. Contractual repayments include both principal and interest. Forecasted collection rates are negatively impacted by canceled Consumer Loans as the contractual amount owed is not removed from the denominator for purposes of computing forecasted collection rates in the table.
Schedule Of Consumer Loans Performance	The following table segments our Loan portfolio by the performance of the Loan pools: (In millions) As of December 31, 2019 Loan Pool Performance Meets or Exceeds Initial Estimates Loan Pool Performance Less than Initial Estimates Dealer Purchased Loans Total Dealer Purchased Loans Total Loans receivable $ 1,591.3 $ 2,006.9 $ 3,598.2 $ 3,032.0 $ 591.0 $ 3,623.0 Allowance for credit losses — — — (428.0 ) (108.0 ) (536.0 ) Loans receivable, net $ 1,591.3 $ 2,006.9 $ 3,598.2 $ 2,604.0 $ 483.0 $ 3,087.0 (In millions) As of December 31, 2018 Loan Pool Performance Meets or Exceeds Initial Estimates Loan Pool Performance Less than Initial Estimates Dealer Purchased Loans Total Dealer Purchased Loans Total Loans receivable $ 1,355.1 $ 1,392.1 $ 2,747.2 $ 2,785.9 $ 692.1 $ 3,478.0 Allowance for credit losses — — — (378.1 ) (83.8 ) (461.9 ) Loans receivable, net $ 1,355.1 $ 1,392.1 $ 2,747.2 $ 2,407.8 $ 608.3 $ 3,016.1
Summary Of Changes In Allowance For Credit Losses	A summary of changes in the allowance for credit losses is as follows: (In millions) For the Year Ended December 31, 2019 Dealer Loans Purchased Loans Total Balance, beginning of period $ 378.1 $ 83.8 $ 461.9 Provision for credit losses 65.9 10.5 76.4 Transfers (1) (13.1 ) 13.1 — Write-offs (4.4 ) (0.5 ) (4.9 ) Recoveries (2) 1.5 1.1 2.6 Balance, end of period $ 428.0 $ 108.0 $ 536.0 (In millions) For the Year Ended December 31, 2018 Dealer Loans Purchased Loans Total Balance, beginning of period $ 366.0 $ 63.4 $ 429.4 Provision for credit losses 48.0 8.9 56.9 Transfers (1) (13.7 ) 13.7 — Write-offs (25.2 ) (3.4 ) (28.6 ) Recoveries (2) 3.0 1.2 4.2 Balance, end of period $ 378.1 $ 83.8 $ 461.9 (In millions) For the Year Ended December 31, 2017 Dealer Loans Purchased Loans Total Balance, beginning of period $ 309.3 $ 11.1 $ 320.4 Provision for credit losses 103.4 25.9 129.3 Transfers (1) (31.8 ) 31.8 — Write-offs (16.4 ) (5.7 ) (22.1 ) Recoveries (2) 1.5 0.3 1.8 Balance, end of period $ 366.0 $ 63.4 $ 429.4 (1) Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs. (2)

Property And Equipment (Tables)

Property And Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Schedule Of Property And Equipment	Property and equipment consists of the following: (In millions) As of December 31, 2019 2018 Land and land improvements $ 2.7 $ 2.7 Building and improvements 54.5 33.2 Data processing equipment and software 41.3 37.3 Office furniture and equipment 3.9 3.8 Leasehold improvements 2.4 2.2 Total property and equipment 104.8 79.2 Less: Accumulated depreciation on property and equipment (45.1 ) (39.0 ) Total property and equipment, net $ 59.7 $ 40.2

Reinsurance (Tables)

Reinsurance (Tables)	12 Months Ended
	Dec. 31, 2019
Reinsurance [Abstract]
Schedule Of Reinsurance Activity	A summary of reinsurance activity is as follows: (In millions) For the Years Ended December 31, 2019 2018 2017 Net assumed written premiums $ 51.8 $ 55.8 $ 42.4 Net premiums earned 51.0 46.6 41.1 Provision for claims 30.1 26.0 22.7 Amortization of capitalized acquisition costs 1.3 1.2 1.0
Schedule Of Trust Assets And Reinsurance Liabilities	The trust assets and related reinsurance liabilities are as follows: (In millions) As of December 31, Balance Sheet location 2019 2018 Trust assets Restricted cash and cash equivalents $ 0.9 $ 0.3 Trust assets Restricted securities available for sale 59.3 58.6 Unearned premium Accounts payable and accrued liabilities 44.1 43.3 Claims reserve (1) Accounts payable and accrued liabilities 1.8 1.6 (1) The claims reserve represents our liability for incurred-but-not-reported claims and is estimated based on historical claims experience.
Cumulative Incurred Claims	The following tables present information about incurred and paid claims development for the five-year period ended December 31, 2019 : (Dollars in millions) Cumulative Incurred Claims As of December 31, 2019 Incident Year As of December 31, Claims Reserve Cumulative Number of Reported Claims 2015 2016 2017 2018 2019 2015 $ 33.1 $ 33.4 $ 33.4 $ 33.4 $ 33.4 $ — 32,909 2016 25.7 26.0 26.0 26.0 — 25,215 2017 22.3 22.5 22.6 — 20,461 2018 25.8 25.7 — 22,305 2019 30.1 1.8 23,480 Total $ 137.8 $ 1.8 124,370
Cumulative Paid Claims	(In millions) Cumulative Paid Claims As of December 31, Incident Year 2015 2016 2017 2018 2019 2015 $ 31.9 $ 33.4 $ 33.4 $ 33.4 $ 33.4 2016 24.7 26.0 26.0 26.0 2017 21.3 22.5 22.6 2018 24.2 25.7 2019 28.3 Total $ 136.0
Percentage Payout Of Incurred Claims	Average Annual Percentage Payout of Incurred Claims by Age Claim Age (Years) 1 2 3 4 5 Payout Percentage 94.7 % 5.2 % 0.1 % — % — %

Other Income (Tables)

Other Income (Tables)	12 Months Ended
	Dec. 31, 2019
Other Income and Expenses [Abstract]
Schedule Of Other Income [Table Text Block]	Other income consists of the following: For the Years Ended December 31, (In millions) 2019 2018 2017 Ancillary product profit sharing $ 37.9 $ 30.6 $ 23.9 Remarketing fees 12.0 11.2 10.9 Interest 8.5 5.0 2.2 Dealer enrollment fees 4.7 4.3 3.9 Dealer support products and services 2.5 4.1 4.8 GPS-SID fees 1.9 6.4 11.1 Other 1.1 0.8 0.6 Total $ 68.6 $ 62.4 $ 57.4
Disaggregation of Revenue [Table Text Block]	The following table disaggregates our other income by major source of income and timing of the revenue recognition: (In millions) For the Year Ended December 31, 2019 Ancillary product profit sharing Remarketing fees Interest Dealer enrollment fees Dealer support products and services GPS-SID fees Other Total Other Income Source of income Third Party Providers $ 37.9 $ — $ 8.5 $ — $ — $ 1.9 $ 1.1 $ 49.4 Dealers — 12.0 — 4.7 2.5 — — 19.2 Total $ 37.9 $ 12.0 $ 8.5 $ 4.7 $ 2.5 $ 1.9 $ 1.1 $ 68.6 Timing of revenue recognition Over time $ 37.9 $ — $ 8.5 $ 4.7 $ — $ — $ — $ 51.1 At a point in time — 12.0 — — 2.5 1.9 1.1 17.5 Total $ 37.9 $ 12.0 $ 8.5 $ 4.7 $ 2.5 $ 1.9 $ 1.1 $ 68.6

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of Principal Debt Outstanding	Debt consists of the following: (In millions) As of December 31, 2019 Principal Outstanding Unamortized Debt Issuance Costs Unamortized Discount Carrying Amount Revolving secured line of credit (1) $ — $ — $ — $ — Secured financing (2) 3,355.6 (15.9 ) — 3,339.7 Senior notes 1,201.8 (13.2 ) (0.8 ) 1,187.8 Mortgage note 11.3 — — 11.3 Total debt $ 4,568.7 $ (29.1 ) $ (0.8 ) $ 4,538.8 (In millions) As of December 31, 2018 Principal Outstanding Unamortized Debt Issuance Costs Unamortized Discount Carrying Amount Revolving secured line of credit (1) $ 171.9 $ — $ — $ 171.9 Secured financing (2) 3,108.7 (16.0 ) — 3,092.7 Senior notes 550.0 (4.5 ) (1.1 ) 544.4 Mortgage note 11.9 — — 11.9 Total debt $ 3,842.5 $ (20.5 ) $ (1.1 ) $ 3,820.9 (1) Excludes deferred debt issuance costs of $3.2 million and $2.9 million as of December 31, 2019 and December 31, 2018 , respectively, which are included in other assets. (2) Warehouse facilities and Term ABS.
Schedule Of General Information Of Financing Transaction	General information for each of our financing transactions in place as of December 31, 2019 is as follows: (Dollars in millions) Financings Wholly-owned Subsidiary Maturity Date Financing Amount Interest Rate as of December 31, 2019 Revolving Secured n/a 06/22/22 $ 340.0 At our option, either LIBOR plus 187.5 basis points or the prime rate plus 87.5 basis points Warehouse Facility II (1) CAC Warehouse Funding Corp. II 07/12/22 (2) $ 400.0 LIBOR plus 175 basis points (3) Warehouse Facility IV (1) CAC Warehouse Funding LLC IV 07/26/22 (2) $ 300.0 LIBOR plus 200 basis points (3) Warehouse Facility V (1) CAC Warehouse Funding LLC V 08/17/21 (4) $ 100.0 LIBOR plus 190 basis points (3) Warehouse Facility VI (1) CAC Warehouse Funding LLC VI 09/30/22 (2) $ 75.0 LIBOR plus 200 basis points Warehouse Facility VII (1) CAC Warehouse Funding LLC VII 12/16/21 (5) $ 150.0 Commercial paper rate plus 200 basis points (3) Warehouse Facility VIII (1) CAC Warehouse Funding LLC VIII 07/26/22 (2) $ 200.0 LIBOR plus 190 basis points (3) Term ABS 2016-3 (1) Credit Acceptance Funding LLC 2016-3 10/15/18 (2) $ 350.0 Fixed rate Term ABS 2017-1 (1) Credit Acceptance Funding LLC 2017-1 02/15/19 (2) $ 350.0 Fixed rate Term ABS 2017-2 (1) Credit Acceptance Funding LLC 2017-2 06/17/19 (2) $ 450.0 Fixed rate Term ABS 2017-3 (1) Credit Acceptance Funding LLC 2017-3 10/15/19 (2) $ 350.0 Fixed rate Term ABS 2018-1 (1) Credit Acceptance Funding LLC 2018-1 02/17/20 (2) $ 500.0 Fixed rate Term ABS 2018-2 (1) Credit Acceptance Funding LLC 2018-2 05/15/20 (2) $ 450.0 Fixed rate Term ABS 2018-3 (1) Credit Acceptance Funding LLC 2018-3 08/17/20 (2) $ 398.3 Fixed rate Term ABS 2019-1 (1) Credit Acceptance Funding LLC 2019-1 02/15/21 (2) $ 402.5 Fixed rate Term ABS 2019-2 (1) Credit Acceptance Funding LLC 2019-2 08/15/22 (6) $ 500.0 Fixed rate Term ABS 2019-3 (1) Credit Acceptance Funding LLC 2019-3 11/15/21 (2) $ 351.7 Fixed rate 2021 Senior Notes n/a 02/15/21 (7) $ 151.8 Fixed rate 2023 Senior Notes n/a 03/15/23 (7) $ 250.0 Fixed rate 2024 Senior Notes n/a 12/31/24 $ 400.0 Fixed rate 2026 Senior Notes n/a 03/15/26 $ 400.0 Fixed rate Mortgage Note Chapter 4 Properties, LLC 08/06/23 $ 12.0 LIBOR plus 150 basis points (1) Financing made available only to a specified subsidiary of the Company. (2) Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date based on the cash flows of the pledged assets. (3) Interest rate cap agreements are in place to limit the exposure to increasing interest rates. (4) Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on August 17, 2023 will be due on that date. (5) Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on December 16, 2023 will be due on that date. (6) Represents the revolving maturity date. The Company has the option to redeem and retire the indebtedness after the revolving maturity date. If we do not elect this option, the outstanding balance will amortize based on the cash flows of the pledged assets. (7) On January 17, 2020, we used a portion of the net proceeds from the 2024 senior notes to redeem the remaining $151.8 million outstanding principal amount of the 2021 senior notes. We intend to use the remaining net proceeds from the 2024 senior notes, together with borrowings under our revolving credit facility and cash on hand to the extent available, to redeem in full the $250.0 million outstanding principal amount of the 2023 senior notes on or around March 15, 2020.
Schedule Of Additional Information Related To Debt Instruments	Additional information related to the amounts outstanding on each facility is as follows: (In millions) For the Years Ended December 31, 2019 2018 Revolving Secured Line of Credit Maximum outstanding principal balance $ 282.9 $ 265.4 Average outstanding principal balance 77.2 40.6 Warehouse Facility II Maximum outstanding principal balance $ 201.0 $ 201.0 Average outstanding principal balance 78.0 3.3 Warehouse Facility IV Maximum outstanding principal balance $ 100.0 $ 99.0 Average outstanding principal balance 1.1 0.5 Warehouse Facility V Maximum outstanding principal balance $ 35.0 $ 99.0 Average outstanding principal balance 0.9 1.1 Warehouse Facility VI Maximum outstanding principal balance $ — $ 75.0 Average outstanding principal balance — 0.4 Warehouse Facility VII Maximum outstanding principal balance $ 101.5 $ 150.0 Average outstanding principal balance 7.1 7.8 Warehouse Facility VIII Maximum outstanding principal balance $ 145.3 $ — Average outstanding principal balance 7.2 —
Summary Of Debt	(Dollars in millions) As of December 31, 2019 2018 Revolving Secured Line of Credit Principal balance outstanding $ — $ 171.9 Amount available for borrowing (1) 340.0 178.1 Interest rate — % 4.38 % Warehouse Facility II Principal balance outstanding $ — $ — Amount available for borrowing (1) 400.0 400.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility IV Principal balance outstanding $ — $ — Amount available for borrowing (1) 300.0 250.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility V Principal balance outstanding $ — $ — Amount available for borrowing (1) 100.0 100.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility VI Principal balance outstanding $ — $ — Amount available for borrowing (1) 75.0 75.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral — 0.1 Interest rate — % — % Warehouse Facility VII Principal balance outstanding $ — $ — Amount available for borrowing (1) 150.0 150.0 Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral 1.0 1.0 Interest rate — % — % Warehouse Facility VIII Principal balance outstanding $ — $ — Amount available for borrowing (1) 200.0 — Loans pledged as collateral — — Restricted cash and cash equivalents pledged as collateral — — Interest rate — % — % Term ABS 2016-1 Principal balance outstanding $ — $ 125.3 Loans pledged as collateral — 320.8 Restricted cash and cash equivalents pledged as collateral — 29.6 Interest rate — % 4.41 % Term ABS 2016-2 Principal balance outstanding $ — $ 184.5 Loans pledged as collateral — 335.0 Restricted cash and cash equivalents pledged as collateral — 28.3 Interest rate — % 3.20 % Term ABS 2016-3 Principal balance outstanding $ 51.8 $ 300.6 Loans pledged as collateral 219.5 392.7 Restricted cash and cash equivalents pledged as collateral 23.5 30.7 Interest rate 3.60 % 2.59 % Term ABS 2017-1 Principal balance outstanding $ 120.9 $ 350.0 Loans pledged as collateral 292.8 429.8 Restricted cash and cash equivalents pledged as collateral 26.1 30.9 Interest rate 3.19 % 2.78 % Term ABS 2017-2 Principal balance outstanding $ 277.2 $ 450.0 Loans pledged as collateral 426.7 548.4 Restricted cash and cash equivalents pledged as collateral 35.1 39.4 Interest rate 2.83 % 2.72 % Term ABS 2017-3 Principal balance outstanding $ 303.2 $ 350.0 Loans pledged as collateral 393.0 426.1 Restricted cash and cash equivalents pledged as collateral 29.3 28.6 Interest rate 2.91 % 2.88 % Term ABS 2018-1 Principal balance outstanding $ 500.0 $ 500.0 Loans pledged as collateral 609.5 614.5 Restricted cash and cash equivalents pledged as collateral 43.8 41.8 Interest rate 3.24 % 3.24 % Term ABS 2018-2 Principal balance outstanding $ 450.0 $ 450.0 Loans pledged as collateral 550.4 552.2 Restricted cash and cash equivalents pledged as collateral 37.6 36.3 Interest rate 3.68 % 3.68 % Term ABS 2018-3 Principal balance outstanding $ 398.3 $ 398.3 Loans pledged as collateral 487.7 578.8 Restricted cash and cash equivalents pledged as collateral 32.3 33.6 Interest rate 3.72 % 3.72 % Term ABS 2019-1 Principal balance outstanding $ 402.5 $ — Loans pledged as collateral 490.2 — Restricted cash and cash equivalents pledged as collateral 31.9 — Interest rate 3.53 % — % Term ABS 2019-2 Principal balance outstanding $ 500.0 $ — Loans pledged as collateral 628.5 — Restricted cash and cash equivalents pledged as collateral 38.6 — Interest rate 3.13 % — % Term ABS 2019-3 Principal balance outstanding $ 351.7 $ — Loans pledged as collateral 428.6 — Restricted cash and cash equivalents pledged as collateral 27.2 — Interest rate 2.56 % — % 2021 Senior Notes Principal balance outstanding $ 151.8 $ 300.0 Interest rate 6.125 % 6.125 % 2023 Senior Notes Principal balance outstanding $ 250.0 $ 250.0 Interest rate 7.375 % 7.375 % 2024 Senior Notes Principal balance outstanding $ 400.0 $ — Interest rate 5.125 % — % 2026 Senior Notes Principal balance outstanding $ 400.0 $ — Interest rate 6.625 % — % Mortgage Note Principal balance outstanding $ 11.3 $ 11.9 Interest rate 3.21 % 3.85 %
Summary of Term ABS Debt	The table below sets forth certain additional details regarding the outstanding Term ABS financings: (Dollars in millions) Term ABS Financings Close Date Net Book Value of Loans Contributed at Closing Revolving Period Term ABS 2016-3 October 27, 2016 $ 437.8 Through October 15, 2018 Term ABS 2017-1 February 23, 2017 437.8 Through February 15, 2019 Term ABS 2017-2 June 29, 2017 563.2 Through June 17, 2019 Term ABS 2017-3 October 26, 2017 437.6 Through October 15, 2019 Term ABS 2018-1 February 22, 2018 625.1 Through February 17, 2020 Term ABS 2018-2 May 24, 2018 562.6 Through May 15, 2020 Term ABS 2018-3 August 23, 2018 500.1 Through August 17, 2020 Term ABS 2019-1 February 21, 2019 503.1 Through February 15, 2021 Term ABS 2019-2 August 28, 2019 625.1 Through August 15, 2022 Term ABS 2019-3 November 21, 2019 439.6 Through November 15, 2021
Scheduled Principal Maturities Of Debt	The scheduled principal maturities of our debt as of December 31, 2019 are as follows: (In millions) Year Revolving Secured Line of Credit Facility Warehouse Facilities Term ABS Financings (1) Senior Notes Mortgage Note Total 2020 $ — $ — $ 1,376.0 $ 151.8 $ 0.7 $ 1,528.5 2021 — — 1,017.2 — 0.7 1,017.9 2022 — — 915.5 — 0.7 916.2 2023 — — 46.9 250.0 9.2 306.1 2024 — — — 400.0 — 400.0 Thereafter — — — 400.0 — 400.0 Total $ — $ — $ 3,355.6 $ 1,201.8 $ 11.3 $ 4,568.7 (1) The principal maturities of the Term ABS transactions are estimated based on forecasted collections.

Derivative And Hedging Instru_2

Derivative And Hedging Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of Terms Of Interest Rate Cap Agreements	The following tables provide the terms of our interest rate cap agreements that were in effect as of December 31, 2019 and 2018 : (Dollars in millions) As of December 31, 2019 Facility Amount Facility Name Purpose Start End Notional Cap Interest Rate (1) $ 400.0 Warehouse Facility II Cap Floating Rate 12/2017 12/2020 $ 205.0 5.50 % 300.0 Warehouse Facility IV Cap Floating Rate 05/2017 04/2021 100.0 6.50 % Cap Floating Rate 05/2018 04/2021 150.0 6.50 % Cap Floating Rate 07/2019 07/2023 50.0 6.50 % 300.0 100.0 Warehouse Facility V Cap Floating Rate 08/2018 08/2023 75.0 6.50 % 150.0 Warehouse Facility VII Cap Floating Rate 12/2017 11/2021 143.8 5.50 % 200.0 Warehouse Facility VIII Cap Floating Rate 08/2019 08/2023 200.0 5.50 % (Dollars in millions) As of December 31, 2018 Facility Amount Facility Name Purpose Start End Notional Cap Interest Rate (1) $ 400.0 Warehouse Facility II Cap Floating Rate 12/2017 12/2020 $ 205.0 5.50 % 250.0 Warehouse Facility IV Cap Floating Rate 04/2016 04/2019 25.0 5.50 % Cap Floating Rate 05/2017 04/2021 75.0 6.50 % Cap Floating Rate 05/2018 04/2021 150.0 6.50 % 250.0 100.0 Warehouse Facility V Cap Floating Rate 08/2018 08/2023 75.0 6.50 % 125.3 Term ABS 2016-1 Cap Floating Rate 04/2016 02/2019 64.2 5.00 % 150.0 Warehouse Facility VII Cap Floating Rate 12/2017 11/2021 150.0 5.50 % (1) Rate excludes the spread over the corresponding LIBOR or commercial paper rate.
Schedule Of Effect Of Derivative Instruments Not Designated As Hedging Instruments In Consolidated Statements Of Income	Information related to the effect of derivative instruments not designated as hedging instruments on our consolidated statements of income for the years ended December 31, 2019 , 2018 and 2017 is as follows: (In millions) Amount of Loss Recognized in Income on Derivatives Derivatives Not Designated as Hedging Instruments For the Years Ended December 31, Location 2019 2018 2017 Interest rate caps Interest expense $ (0.1 ) $ (0.1 ) $ (0.1 )

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Schedule Of Income Tax Provision	The income tax provision consists of the following: (In millions) For the Years Ended December 31, 2019 2018 2017 Income before provision for income taxes: $ 855.9 $ 755.1 $ 583.8 Current provision for income taxes: Federal 94.1 110.9 184.6 State 18.7 19.5 13.5 112.8 130.4 198.1 Deferred provision for income taxes: Federal 70.7 35.0 (88.4 ) State 14.8 14.3 2.7 85.5 49.3 (85.7 ) Interest and penalties expense: Interest 1.5 1.4 1.2 Penalties — — — 1.5 1.4 1.2 Provision for income taxes $ 199.8 $ 181.1 $ 113.6
Schedule Of Deferred Tax Assets And Liabilities	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities consist of the following: (In millions) As of December 31, 2019 2018 Deferred tax assets: Allowance for credit losses $ 128.3 $ 110.1 Stock-based compensation 15.5 16.5 Deferred state net operating loss 3.6 4.3 Other, net 13.2 7.0 Total deferred tax assets 160.6 137.9 Deferred tax liabilities: Valuation of Loans receivable 471.3 363.9 Deferred Loan origination costs 1.6 1.5 Other, net 10.2 9.2 Total deferred tax liabilities 483.1 374.6 Net deferred tax liability $ 322.5 $ 236.7
Schedule Of Reconciliation Of The U.S. Federal Statutory Rate To Effective Tax Rate	A reconciliation of the U.S. federal statutory income tax rate to our effective income tax rate is as follows: For the Years Ended December 31, 2019 2018 2017 U.S. federal statutory income tax rate 21.0 % 21.0 % 35.0 % Effect of the 2017 Tax Act — % -0.7 % -17.1 % State income taxes 3.1 % 3.5 % 1.7 % Excess tax benefits from stock-based compensation plans -0.9 % -0.1 % -0.4 % Other 0.1 % 0.3 % 0.3 % Effective income tax rate 23.3 % 24.0 % 19.5 %
Schedule Of Unrecognized Tax Benefits	The following table is a summary of changes in gross unrecognized tax benefits: (In millions) For the Years Ended December 31, 2019 2018 2017 Unrecognized tax benefits at January 1, $ 38.7 $ 31.9 $ 27.7 Additions for tax positions of the current year 10.0 10.2 6.7 Additions for tax positions of prior years — — 0.3 Reductions for tax positions of prior years — — (0.4 ) Settlements (2.3 ) — — Reductions as a result of a lapse of the statute of limitations (4.7 ) (3.4 ) (2.4 ) Unrecognized tax benefits at December 31, $ 41.7 $ 38.7 $ 31.9

Net Income Per Share (Tables)

Net Income Per Share (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule Of Weighted Average Shares Outstanding Basic And Diluted	Diluted net income per share has been computed by dividing net income by the diluted number of weighted average shares outstanding using the treasury stock method. The share effect is as follows: For the Years Ended December 31, 2019 2018 2017 Weighted average shares outstanding: Common shares 18,614,719 19,144,785 19,245,188 Vested restricted stock units 285,537 301,282 252,531 Basic number of weighted average shares outstanding 18,900,256 19,446,067 19,497,719 Dilutive effect of restricted stock and restricted stock units 76,304 86,245 61,217 Dilutive number of weighted average shares outstanding 18,976,560 19,532,312 19,558,936

Stock Repurchases (Tables)

Stock Repurchases (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule Of Stock Repurchases	The following table summarizes our stock repurchases for the years ended December 31, 2019 , 2018 , and 2017 : (Dollars in millions) For the Years Ended December 31, 2019 2018 2017 Stock Repurchases Number of Shares Repurchased Cost Number of Shares Repurchased Cost Number of Shares Repurchased Cost Open Market (1) 669,752 $ 282.2 336,743 $ 127.1 588,580 $ 119.1 Other (2) 42,696 18.2 6,185 2.0 21,680 4.4 Total 712,448 $ 300.4 342,928 $ 129.1 610,260 $ 123.5 (1) Represents repurchases under authorizations by the board of directors for the repurchase of shares by us from time to time in the open market or in privately negotiated transactions. On November 7, 2019, the board of directors authorized the repurchase of up to one million shares of our common stock in addition to the board’s prior authorizations. As of December 31, 2019 , we had authorization to repurchase 769,713 shares of our common stock. (2) Represents shares of common stock released to us by team members as payment of tax withholdings upon the vesting of restricted stock and restricted stock units and the conversion of restricted stock units to common stock.

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]
Summary Of Restricted Stock Activity	A summary of the non-vested restricted stock activity under the Incentive Plan for the year ended December 31, 2019 is presented below: Restricted Stock Number of Shares Weighted Average Grant-Date Fair Value Per Share Non-vested as of December 31, 2018 150,647 $ 117.41 Granted 5,301 441.54 Vested (17,971 ) 148.14 Forfeited (474 ) 363.16 Non-vested as of December 31, 2019 137,503 $ 125.04
Summary Of Restricted Stock Units Activity	A summary of the restricted stock unit activity under the Incentive Plan for the year ended December 31, 2019 , is presented below: Restricted Stock Units Number of Restricted Weighted Average Grant-Date Fair Value Per Share Aggregate Intrinsic Value (2) (in millions) Weighted Average Remaining Contractual Term (in years) Outstanding as of December 31, 2018 516,773 $ 127.07 Granted 3,000 453.64 Converted (87,842 ) 106.54 Forfeited (3,100 ) 206.45 Outstanding as of December 31, 2019 (1) 428,831 $ 132.99 $ 189.7 4.1 Vested as of December 31, 2019 285,250 $ 124.67 $ 126.2 3.6 (1) No RSUs outstanding at December 31, 2019 were convertible to shares of common stock. (2) The intrinsic value of RSUs is measured by applying the closing stock price as of December 31, 2019 to the applicable number of units.
Schedule Of Stock Based Compensation Expense	Stock-based compensation expense consists of the following: (In millions) For the Years Ended December 31, 2019 2018 2017 Restricted stock $ 3.0 $ 2.7 $ 2.9 Restricted stock units 4.6 7.6 12.5 Total $ 7.6 $ 10.3 $ 15.4
Schedule Of Future Share-Based Compensation Cost	Assuming performance targets are achieved in the periods currently estimated, we expect to recognize the remaining expense for stock-based awards outstanding as of December 31, 2019 over a weighted average period of 1.7 years, as follows: (In millions) For the Years Ended December 31, Restricted Restricted Stock Total Projected Expense 2020 $ 2.8 $ 1.9 $ 4.7 2021 0.6 1.2 1.8 2022 0.1 0.9 1.0 2023 — 0.7 0.7 2024 — 0.5 0.5 Thereafter — 0.5 0.5 Total $ 3.5 $ 5.7 $ 9.2

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Lease Commitments	Our total minimum future lease commitments under operating leases as of December 31, 2019 are as follows: (In millions) Year Minimum Future 2020 $ 1.6 2021 1.2 2022 0.6 2023 — 2024 — Total $ 3.4

Quarterly Financial Data (Table

Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Schedule Of Quarterly Financial Data	The following quarterly financial data for the years ended December 31, 2019 and 2018 has been prepared in accordance with GAAP: (In millions, except per share data) 2019 Quarters Ended Income Statement Data March 31 June 30 September 30 December 31 Revenue $ 353.8 $ 370.6 $ 378.7 $ 385.9 Income before provision for income taxes 206.3 215.3 219.1 215.2 Net income 164.4 164.4 165.4 161.9 Net income per share (1): Basic $ 8.67 $ 8.68 $ 8.73 $ 8.63 Diluted $ 8.65 $ 8.68 $ 8.73 $ 8.60 (In millions, except per share data) 2018 Quarters Ended Income Statement Data March 31 June 30 September 30 December 31 Revenue $ 295.6 $ 315.4 $ 332.0 $ 342.8 Income before provision for income taxes 157.7 198.0 198.4 201.0 Net income 120.1 151.0 151.0 151.9 Net income per share (1): Basic $ 6.18 $ 7.76 $ 7.76 $ 7.82 Diluted $ 6.17 $ 7.75 $ 7.75 $ 7.79 (1) Basic and diluted net income per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted net income per share.

Description Of Business (Narrat

Description Of Business (Narrative) (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2019loan	Sep. 30, 2019loan	Dec. 31, 2019USD ($)loanportfolio_segment
Description Of Business [Abstract]
Number of Portfolio Segments | portfolio_segment			2
Number of consumers required to group advances	50	100
Number of Consumer Loans assigned to receive accelerated Dealer Holdback payment			100
Servicing fee percentage in collections			20.00%
Number Of Consumer Loans Assigned To Receive Dealer Holdback Payment			100
One-time enrollment fee in program | $			$ 9,850
Percentage of enrollment fee of first accelerated dealer holdback payment			50.00%

Description of Business (Percen

Description of Business (Percentage of Consumer Loans Assigned with FICO Score of Less Than 650 or No FICO Score) (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Percentage Of Contracts With FICO Score Lower Than 650 Or No FICO Score [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Credit Quality, Additional Information	95.90%	95.60%	95.60%

Description Of Business (Perc_2

Description Of Business (Percentage Of Consumer Loans Assigned Based On Unit and Dollar Volumes) (Details)		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Portfolio Program [Member]
Description Of Business [Line Items]
Percentage of new consumer loans in unit volume		67.20%	69.70%	72.50%
Percentage of new consumer loans in dollar volume	[1]	64.30%	67.20%	68.50%
Purchase Program [Member]
Description Of Business [Line Items]
Percentage of new consumer loans in unit volume		32.80%	30.30%	27.50%
Percentage of new consumer loans in dollar volume	[1]	35.70%	32.80%	31.50%
[1]	Represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program and one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program. Payments of Dealer Holdback (as defined below) and accelerated Dealer Holdback are not included.

Summary Of Significant Accoun_4

Summary Of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019USD ($)portfolio_segment	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of Portfolio Segments | portfolio_segment	2
Number of Reportable Segments | portfolio_segment	1
Monthly fee charged Dealer in Portfolio Program	$ 599
Period after Consumer Loan assignment that Dealer Loans written off	120 months
Period after month of purchase that Purchased Loans written off	120 months
Threshold to determine likelihood of being sustained	50.00%
Employer matching contribution, match percentage	100.00%
Matching contribution	4.00%
Employer matching contribution, additional match percentage	50.00%
Additional matching contribution	2.00%
Maximum matching contribution	5.00%
Recognized compensation expense	$ 7,100,000	$ 5,300,000	$ 4,600,000
Advertising expense	300,000	200,000	$ 400,000
Cash and Cash Equivalents [Member]
Summary Of Significant Accounting Policies [Line Items]
Uninsured cash and cash equivalents	186,100,000	25,100,000
Restricted Cash And Cash Equivalents [Member]
Summary Of Significant Accounting Policies [Line Items]
Uninsured cash and cash equivalents	$ 326,700,000	$ 303,000,000
Building [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	P40Y
Building Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	P10Y
Data Processing Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	P3Y
Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	P5Y
Office Furniture And Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	P7Y
Leasehold Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	P7Y
Software Development [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	P5Y

Summary Of Significant Accoun_5

Summary Of Significant Accounting Policies Summary of Significant Accounting Policies (Schedule of Cash and Cash Equivalents) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Cash and cash equivalents	$ 187.4	$ 25.7	$ 8.2
Restricted cash and cash equivalents	330.3	303.6	255.6
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 517.7	$ 329.3	$ 263.8	$ 239.3

Summary Of Significant Accoun_6

Summary Of Significant Accounting Policies New Accounting Pronouncements (Narrative) (Details) - Adjustments for New Accounting Pronouncement [Member] $ in Billions	12 Months Ended
	Dec. 31, 2019USD ($)
Loans Receivable and related Allowance for Credit Losses [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 2.5
Allowance for Credit Losses [Member]
Item Effected [Line Items]
Write Off Policy Cap Percentage Based On Future Cash Flows	200.00%
Minimum [Member] | Annual Net Income Impact [Member]
Item Effected [Line Items]
New Accounting Pronouncement Estimated Impact	30.00%
Minimum [Member] | Quarterly Net Income Impact [Member]
Item Effected [Line Items]
New Accounting Pronouncement Estimated Impact	50.00%
Minimum [Member] | Allowance for Credit Losses [Member]
Item Effected [Line Items]
New Accounting Pronouncement Estimated Impact	12.00%
Maximum [Member] | Annual Net Income Impact [Member]
Item Effected [Line Items]
New Accounting Pronouncement Estimated Impact	60.00%
Maximum [Member] | Quarterly Net Income Impact [Member]
Item Effected [Line Items]
New Accounting Pronouncement Estimated Impact	80.00%
Maximum [Member] | Allowance for Credit Losses [Member]
Item Effected [Line Items]
New Accounting Pronouncement Estimated Impact	15.00%

Fair Value Of Financial Instr_3

Fair Value Of Financial Instruments (Schedule Of Comparison Of The Carrying Value And Estimated Fair Value Of These Financial Instruments) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	[1]	$ 187.4	$ 25.7
Restricted cash and cash equivalents	[1]	330.3	303.6
Restricted securities available for sale	[2]	59.3	58.6
Net investment in Loans receivable	[1]	6,777.2	5,855.1
Liabilities, Fair Value Disclosure [Abstract]
Revolving secured line of credit	[1]	0	171.9
Secured financing	[1]	3,397.5	3,100.9
Senior notes	[1]	1,257.6	556.3
Other Borrowings	[1]	11.3	11.9
Carrying Amount [Member]
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		187.4	25.7
Restricted cash and cash equivalents		330.3	303.6
Restricted securities available for sale		59.3	58.6
Net investment in Loans receivable		6,685.2	5,763.3
Liabilities, Fair Value Disclosure [Abstract]
Revolving secured line of credit		0	171.9
Secured financing		3,339.7	3,092.7
Senior notes		1,187.8	544.4
Other Borrowings		11.3	11.9
Estimated Fair Value [Member]
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		187.4	25.7
Restricted cash and cash equivalents		330.3	303.6
Restricted securities available for sale		59.3	58.6
Net investment in Loans receivable		6,777.2	5,855.1
Liabilities, Fair Value Disclosure [Abstract]
Revolving secured line of credit		0	171.9
Secured financing		3,397.5	3,100.9
Senior notes		1,257.6	556.3
Other Borrowings		$ 11.3	$ 11.9
[1]	Measured at amortized cost with fair value disclosed.
[2]	Measured at fair value on a recurring basis.

Fair Value Of Financial Instr_4

Fair Value Of Financial Instruments (Schedule Of Assets And Liabilities, Measured At Fair Value) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	[1]	$ 187.4	$ 25.7
Restricted cash and cash equivalents	[1]	330.3	303.6
Restricted securities available for sale	[2]	59.3	58.6
Net investment in Loans receivable	[1]	6,777.2	5,855.1
Revolving secured line of credit	[1]	0	171.9
Secured financing	[1]	3,397.5	3,100.9
Senior notes	[1]	1,257.6	556.3
Other Borrowings	[1]	11.3	11.9
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	[1]	187.4	25.7
Restricted cash and cash equivalents	[1]	330.3	303.6
Restricted securities available for sale	[2]	47.5	47.9
Net investment in Loans receivable	[1]	0	0
Revolving secured line of credit	[1]	0	0
Secured financing	[1]	0	0
Senior notes	[1]	1,257.6	556.3
Other Borrowings	[1]	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	[1]	0	0
Restricted cash and cash equivalents	[1]	0	0
Restricted securities available for sale	[2]	11.8	10.7
Net investment in Loans receivable	[1]	0	0
Revolving secured line of credit	[1]	0	171.9
Secured financing	[1]	3,397.5	3,100.9
Senior notes	[1]	0	0
Other Borrowings	[1]	11.3	11.9
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	[1]	0	0
Restricted cash and cash equivalents	[1]	0	0
Restricted securities available for sale	[2]	0	0
Net investment in Loans receivable	[1]	6,777.2	5,855.1
Revolving secured line of credit	[1]	0	0
Secured financing	[1]	0	0
Senior notes	[1]	0	0
Other Borrowings	[1]	$ 0	$ 0
[1]	Measured at amortized cost with fair value disclosed.
[2]	Measured at fair value on a recurring basis.

Restricted Securities Availab_3

Restricted Securities Available For Sale (Restricted Securities Available For Sale) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Cost		$ 58.3	$ 59
Gross Unrealized Gains		1	0.1
Gross Unrealized Losses		0	0.5
Total restricted securities available for sale	[1]	59.3	58.6
Corporate bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Cost		25.3	23.4
Gross Unrealized Gains		0.5	0
Gross Unrealized Losses		0	0.2
Total restricted securities available for sale		25.8	23.2
US Government and agency securities [Member]
Debt Securities, Available-for-sale [Line Items]
Cost		21.3	24.8
Gross Unrealized Gains		0.4	0.1
Gross Unrealized Losses		0	0.2
Total restricted securities available for sale		21.7	24.7
Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Cost		11.2	9.4
Gross Unrealized Gains		0.1	0
Gross Unrealized Losses		0	0.1
Total restricted securities available for sale		11.3	9.3
Mortgage-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Cost		0.5	1.4
Gross Unrealized Gains		0	0
Gross Unrealized Losses		0	0
Total restricted securities available for sale		$ 0.5	$ 1.4
[1]	Measured at fair value on a recurring basis.

Restricted Securities Availab_4

Restricted Securities Available For Sale (Schedule Of Restricted Securities Available For Sale By Aging Category) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Estimated Fair Value, Less than 12 Months	$ 5.2	$ 18.9
Gross Unrealized Losses, Less than 12 Months	0	(0.1)
Estimated Fair Value,12 Months or More	0	21.7
Gross Unrealized Losses, 12 Months or More	0	(0.4)
Total Estimated Fair Value	5.2	40.6
Total Gross Unrealized Losses	0	(0.5)
Corporate bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Estimated Fair Value, Less than 12 Months	1.4	12
Gross Unrealized Losses, Less than 12 Months	0	(0.1)
Estimated Fair Value,12 Months or More	0	6.5
Gross Unrealized Losses, 12 Months or More	0	(0.1)
Total Estimated Fair Value	1.4	18.5
Total Gross Unrealized Losses	0	(0.2)
US Government and agency securities [Member]
Debt Securities, Available-for-sale [Line Items]
Estimated Fair Value, Less than 12 Months	1.9	2.2
Gross Unrealized Losses, Less than 12 Months	0	0
Estimated Fair Value,12 Months or More	0	10.5
Gross Unrealized Losses, 12 Months or More	0	(0.2)
Total Estimated Fair Value	1.9	12.7
Total Gross Unrealized Losses	0	(0.2)
Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Estimated Fair Value, Less than 12 Months	1.9	4.7
Gross Unrealized Losses, Less than 12 Months	0	0
Estimated Fair Value,12 Months or More	0	3.3
Gross Unrealized Losses, 12 Months or More	0	(0.1)
Total Estimated Fair Value	1.9	8
Total Gross Unrealized Losses	0	(0.1)
Mortgage-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Estimated Fair Value, Less than 12 Months	0	0
Gross Unrealized Losses, Less than 12 Months	0	0
Estimated Fair Value,12 Months or More	0	1.4
Gross Unrealized Losses, 12 Months or More	0	0
Total Estimated Fair Value	0	1.4
Total Gross Unrealized Losses	$ 0	$ 0

Restricted Securities Availab_5

Restricted Securities Available For Sale (Schedule Of Cost And Estimated Fair Values Of Debt Securities By Contractual Maturity) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Within one year, cost		$ 5.7	$ 1.7
Over one year to five years, cost		50.8	55.1
Over five years to ten years, cost		1.5	0.8
Over ten years, cost		0.3	1.4
Total restricted securities available for sale, cost		58.3	59
Within one year, estimated fair value		5.7	1.7
Over one year to five years, estimated fair value		51.8	54.7
Over five years to ten years, estimated fair value		1.5	0.8
Over ten years, fair value		0.3	1.4
Total restricted securities available for sale, estimated fair value	[1]	$ 59.3	$ 58.6
[1]	Measured at fair value on a recurring basis.

Loans Receivable (Narrative) (D

Loans Receivable (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Document Period End Date			Dec. 31, 2019
Transfers	[1]		$ 0	$ 0	$ 0
Transfers	[2]		$ 0	0	0
Age of Consumer Loans contractual payments due with no forecasted future net cash flows			120 months
Impact of Forecast Change on Credit Losses		$ 41.6
Impact of Forecast Change on Finance Charges		7.3
Impact of Forecast Change on Net Income		$ 30.8
Impact of Forecast Change on Loan Portfolio Yield		9000.00%
Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers	[1]	$ (89)	$ (87.2)	(78.2)	(93.1)
Transfers	[2]	$ (31.8)	(13.1)	(13.7)	(31.8)
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfers	[1]		87.2	78.2	93.1
Transfers	[2]		$ 13.1	$ 13.7	$ 31.8
[1]	Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs.
[2]	Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs.

Loans Receivable (Schedule Of L

Loans Receivable (Schedule Of Loans Receivable) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 7,221.2	$ 6,225.2	$ 5,049	$ 4,207
Allowance for credit losses	(536)	(461.9)	(429.4)	(320.4)
Loans receivable, net	6,685.2	5,763.3
Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	4,623.3	4,141	3,518.1	3,209
Allowance for credit losses	(428)	(378.1)	(366)	(309.3)
Loans receivable, net	4,195.3	3,762.9
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,597.9	2,084.2	1,530.9	998
Allowance for credit losses	(108)	(83.8)	$ (63.4)	$ (11.1)
Loans receivable, net	$ 2,489.9	$ 2,000.4

Loans Receivable (Summary Of Ch

Loans Receivable (Summary Of Changes In Loans Receivable) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period			$ 6,225.2	$ 5,049	$ 4,207
New Consumer Loan assignments	[1]		3,772.2	3,595.8	2,873.1
Principal collected on Loans receivable			(2,971.2)	(2,576.7)	(2,189.5)
Accelerated Dealer Holdback payments			(58.8)	(52.6)	(47.1)
Dealer Holdback payments			138.5	128.9	131.6
Transfers	[2]		0	0	0
Write-offs			(4.9)	(28.6)	(22.1)
Recoveries	[3],[4]		2.6	4.2	1.8
Balance, end of period		$ 5,049	7,221.2	6,225.2	5,049
Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period			4,141	3,518.1	3,209
New Consumer Loan assignments	[1]		2,424.5	2,414.8	1,968.3
Principal collected on Loans receivable			(2,049.4)	(1,873)	(1,729.9)
Accelerated Dealer Holdback payments			(58.8)	(52.6)	(47.1)
Dealer Holdback payments			138.5	128.9	131.6
Transfers	[2]	(89)	(87.2)	(78.2)	(93.1)
Write-offs			(4.4)	(25.2)	(16.4)
Recoveries	[3],[4]		1.5	3	1.5
Balance, end of period		3,518.1	4,623.3	4,141	3,518.1
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period			2,084.2	1,530.9	998
New Consumer Loan assignments	[1]		1,347.7	1,181	904.8
Principal collected on Loans receivable			(921.8)	(703.7)	(459.6)
Accelerated Dealer Holdback payments			0	0	0
Dealer Holdback payments			0	0	0
Transfers	[2]		87.2	78.2	93.1
Write-offs			(0.5)	(3.4)	(5.7)
Recoveries	[3],[4]		1.1	1.2	0.3
Balance, end of period		$ 1,530.9	$ 2,597.9	$ 2,084.2	$ 1,530.9
[1]	The Dealer Loans amount represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program. The Purchased Loans amount represents one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program.
[2]	Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs.
[3]	Represents collections received on previously written off Loans.
[4]	Represents collections received on previously written off Loans.

Loans Receivable (Summary Of _2

Loans Receivable (Summary Of Changes In Accretable Yield) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period		$ 2,065.5	$ 1,665.5	$ 1,330.7
New Consumer Loan assignments	[1]	1,532.8	1,478.6	1,180.9
Accretion	[2]	(1,378.2)	(1,185.6)	(1,020.2)
Provision for credit losses		76.4	56.9	129.3
Forecast changes		14.6	42.3	36.1
Transfers	[3]	8.9	7.8	8.7
Balance, end of period		2,320	2,065.5	1,665.5
Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period		1,283	1,088.6	982.6
New Consumer Loan assignments	[1]	971.6	990.2	803
Accretion	[2]	(897.5)	(816.3)	(766.6)
Provision for credit losses		65.9	48	103.4
Forecast changes		(7.9)	2	(5.6)
Transfers	[3]	(33.3)	(29.5)	(28.2)
Balance, end of period		1,381.8	1,283	1,088.6
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period		782.5	576.9	348.1
New Consumer Loan assignments	[1]	561.2	488.4	377.9
Accretion	[2]	(480.7)	(369.3)	(253.6)
Provision for credit losses		10.5	8.9	25.9
Forecast changes		22.5	40.3	41.7
Transfers	[3]	42.2	37.3	36.9
Balance, end of period		$ 938.2	$ 782.5	$ 576.9
[1]	The Dealer Loans amount represents the net cash flows expected at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related advances paid to Dealers. The Purchased Loans amount represents the net cash flows expected at the time of assignment on Consumer Loans assigned under our Purchase Program, less the related one-time payments made to Dealers.
[2]	Represents finance charges excluding the amortization of deferred direct origination costs for Dealer Loans.
[3]	Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback.  We transfer the Dealer’s outstanding Dealer Loan balance, the related allowance for credit losses balance and related expected future net cash flows to Purchased Loans in the period this forfeiture occurs

Loans Receivable (Summary Of In

Loans Receivable (Summary Of Information Related To New Consumer Loan Assignments) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractual net cash flows at the time of assignment	[1]	$ 6,763.9	$ 6,438.1	$ 5,105.3
Expected net cash flows at the time of assignment	[2]	5,305	5,074.4	4,054
Fair value at the time of assignment	[3]	3,772.2	3,595.8	2,873.1
Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractual net cash flows at the time of assignment	[1]	3,810.6	3,827.4	3,131.6
Expected net cash flows at the time of assignment	[2]	3,396.1	3,405	2,771.3
Fair value at the time of assignment	[3]	2,424.5	2,414.8	1,968.3
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractual net cash flows at the time of assignment	[1]	2,953.3	2,610.7	1,973.7
Expected net cash flows at the time of assignment	[2]	1,908.9	1,669.4	1,282.7
Fair value at the time of assignment	[3]	$ 1,347.7	$ 1,181	$ 904.8
[1]	The Dealer Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we would be required to make if we collected all of the contractual repayments.  The Purchased Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Purchase Program
[2]	The Dealer Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we expected to make.  The Purchased Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Purchase Program
[3]	The Dealer Loans amount represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program.  The Purchased Loans amount represents one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program

Loans Receivable (Schedule Of C

Loans Receivable (Schedule Of Consumer Loans Forecasted Collection Percentage) (Details)		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Document Period End Date		Dec. 31, 2019
Loans Originating in 2010 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	77.80%	77.70%	77.60%
Initial Forecasted Collection Percentage	[1]										73.60%
Current Forecast Variance	[1]		0.10%	0.20%
Current Forecast Variance From Initial Forecast	[1]										4.20%
Loans Originating in 2011 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	74.80%	74.70%	74.70%
Initial Forecasted Collection Percentage	[1]									72.50%
Current Forecast Variance	[1]		0.10%	0.10%
Current Forecast Variance From Initial Forecast	[1]									2.30%
Loans Originating in 2012 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	73.90%	73.80%	73.80%
Initial Forecasted Collection Percentage	[1]								71.40%
Current Forecast Variance	[1]		0.10%	0.10%
Current Forecast Variance From Initial Forecast	[1]								2.50%
Loans Originating in 2013 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	73.50%	73.50%	73.50%
Initial Forecasted Collection Percentage	[1]							72.00%
Current Forecast Variance	[1]		0.00%	0.00%
Current Forecast Variance From Initial Forecast	[1]							1.50%
Loans Originating in 2014 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	71.70%	71.70%	71.70%
Initial Forecasted Collection Percentage	[1]						71.80%
Current Forecast Variance	[1]		0.00%	0.00%
Current Forecast Variance From Initial Forecast	[1]						(0.10%)
Loans Originating in 2015 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	65.40%	65.40%	65.50%
Initial Forecasted Collection Percentage	[1]					67.70%
Current Forecast Variance	[1]		0.00%	(0.10%)
Current Forecast Variance From Initial Forecast	[1]					(2.30%)
Loans Originating in 2016 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	64.10%	64.20%	64.80%
Initial Forecasted Collection Percentage	[1]				65.40%
Current Forecast Variance	[1]		(0.10%)	(0.70%)
Current Forecast Variance From Initial Forecast	[1]				(1.30%)
Loans Originating in 2017 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	64.80%	65.50%	65.60%
Initial Forecasted Collection Percentage	[1]			64.00%
Current Forecast Variance	[1]		(0.70%)	(0.80%)
Current Forecast Variance From Initial Forecast	[1]			0.80%
Loans Originating in 2018 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	65.10%	65.00%
Initial Forecasted Collection Percentage	[1]	64.00%	63.60%
Current Forecast Variance	[1]		0.10%
Current Forecast Variance From Initial Forecast	[1]	0.60%	1.50%
Loans Originating in 2019 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Forecasted Collection Percentage	[1]	64.60%
[1]	Represents the total forecasted collections we expect to collect on the Consumer Loans as a percentage of the repayments that we were contractually owed on the Consumer Loans at the time of assignment. Contractual repayments include both principal and interest. Forecasted collection rates are negatively impacted by canceled Consumer Loans as the contractual amount owed is not removed from the denominator for purposes of computing forecasted collection rates in the table.

Loans Receivable (Schedule Of_2

Loans Receivable (Schedule Of Consumer Loans Performance) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 7,221.2	$ 6,225.2	$ 5,049	$ 4,207
Allowance for credit losses	(536)	(461.9)	(429.4)	(320.4)
Loans receivable, net	6,685.2	5,763.3
Loan Pool Performance Meets Or Exceeds Initial Estimates [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	3,598.2	2,747.2
Allowance for credit losses	0	0
Loans receivable, net	3,598.2	2,747.2
Loan Pool Performance Less Than Initial Estimates [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	3,623	3,478
Allowance for credit losses	(536)	(461.9)
Loans receivable, net	3,087	3,016.1
Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	4,623.3	4,141	3,518.1	3,209
Allowance for credit losses	(428)	(378.1)	(366)	(309.3)
Loans receivable, net	4,195.3	3,762.9
Dealer Loans [Member] | Loan Pool Performance Meets Or Exceeds Initial Estimates [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	1,591.3	1,355.1
Allowance for credit losses	0	0
Loans receivable, net	1,591.3	1,355.1
Dealer Loans [Member] | Loan Pool Performance Less Than Initial Estimates [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	3,032	2,785.9
Allowance for credit losses	(428)	(378.1)
Loans receivable, net	2,604	2,407.8
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,597.9	2,084.2	1,530.9	998
Allowance for credit losses	(108)	(83.8)	$ (63.4)	$ (11.1)
Loans receivable, net	2,489.9	2,000.4
Purchased Loans [Member] | Loan Pool Performance Meets Or Exceeds Initial Estimates [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,006.9	1,392.1
Allowance for credit losses	0	0
Loans receivable, net	2,006.9	1,392.1
Purchased Loans [Member] | Loan Pool Performance Less Than Initial Estimates [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	591	692.1
Allowance for credit losses	(108)	(83.8)
Loans receivable, net	$ 483	$ 608.3

Loans Receivable (Summary Of _3

Loans Receivable (Summary Of Changes In Allowance For Credit Losses) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period			$ 461.9	$ 429.4	$ 320.4
Provision for credit losses			76.4	56.9	129.3
Transfers	[1]		0	0	0
Write-offs			(4.9)	(28.6)	(22.1)
Recoveries	[2],[3]		2.6	4.2	1.8
Balance, end of period		$ 429.4	536	461.9	429.4
Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period			378.1	366	309.3
Provision for credit losses			65.9	48	103.4
Transfers	[1]	(31.8)	(13.1)	(13.7)	(31.8)
Write-offs			(4.4)	(25.2)	(16.4)
Recoveries	[2],[3]		1.5	3	1.5
Balance, end of period		366	428	378.1	366
Purchased Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period			83.8	63.4	11.1
Provision for credit losses			10.5	8.9	25.9
Transfers	[1]		13.1	13.7	31.8
Write-offs			(0.5)	(3.4)	(5.7)
Recoveries	[2],[3]		1.1	1.2	0.3
Balance, end of period		$ 63.4	$ 108	$ 83.8	$ 63.4
[1]	Under our Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance and the related allowance for credit losses balance to Purchased Loans in the period this forfeiture occurs.
[2]	Represents collections received on previously written off Loans.
[3]	Represents collections received on previously written off Loans.

Property And Equipment (Narrati

Property And Equipment (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Depreciation	$ 7.3	$ 5.4	$ 6

Property And Equipment (Schedul

Property And Equipment (Schedule Of Property And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Land and land improvements	$ 2.7	$ 2.7
Building and improvements	54.5	33.2
Data processing equipment and software	41.3	37.3
Office furniture and equipment	3.9	3.8
Leasehold improvements	2.4	2.2
Total property and equipment	104.8	79.2
Less: Accumulated depreciation on property and equipment	(45.1)	(39)
Property, Plant and Equipment, Net, Total	$ 59.7	$ 40.2

Reinsurance (Schedule Of Reinsu

Reinsurance (Schedule Of Reinsurance Activity) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reinsurance [Abstract]
Net assumed written premiums	$ 51.8	$ 55.8	$ 42.4
Net premiums earned	51	46.6	41.1
Provision for claims	30.1	26	22.7
Amortization of capitalized acquisition costs	$ 1.3	$ 1.2	$ 1

Reinsurance (Schedule Of Trust

Reinsurance (Schedule Of Trust Assets And Reinsurance Liabilities) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reinsurance [Line Items]
Restricted cash and cash equivalents		$ 330.3	$ 303.6	$ 255.6
Restricted securities available for sale	[1]	59.3	58.6
Accounts payable and accrued liabilities		206.4	186.4
Trust Assets [Member]
Reinsurance [Line Items]
Restricted cash and cash equivalents		0.9	0.3
Restricted securities available for sale		59.3	58.6
Unearned Premium [Member]
Reinsurance [Line Items]
Accounts payable and accrued liabilities		44.1	43.3
Claims Reserve [Member]
Reinsurance [Line Items]
Accounts payable and accrued liabilities	[2]	$ 1.8	$ 1.6
[1]	Measured at fair value on a recurring basis.
[2]	The claims reserve represents our liability for incurred-but-not-reported claims and is estimated based on historical claims experience.

Reinsurance (Cumulative Incurre

Reinsurance (Cumulative Incurred Claims) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cumulative Incurred Claims [Line Items]
Cumulative Incurred Claims	$ 137,800,000
Claims Reserve	$ 1,800,000
Cumulative Number Of Reported Claims	124,370
Incident Year 2015 [Member]
Cumulative Incurred Claims [Line Items]
Cumulative Incurred Claims	$ 33,400,000	$ 33,400,000	$ 33,400,000	$ 33,400,000	$ 33,100,000
Claims Reserve	$ 0
Cumulative Number Of Reported Claims	32,909
Incident Year 2016 [Member]
Cumulative Incurred Claims [Line Items]
Cumulative Incurred Claims	$ 26,000,000	26,000,000	26,000,000	$ 25,700,000
Claims Reserve	$ 0
Cumulative Number Of Reported Claims	25,215
Incident Year 2017 [Member]
Cumulative Incurred Claims [Line Items]
Cumulative Incurred Claims	$ 22,600,000	22,500,000	$ 22,300,000
Claims Reserve	$ 0
Cumulative Number Of Reported Claims	20,461
Incident Year 2018 [Member]
Cumulative Incurred Claims [Line Items]
Cumulative Incurred Claims	$ 25,700,000	$ 25,800,000
Claims Reserve	$ 0
Cumulative Number Of Reported Claims	22,305
Incident Year 2019 [Member]
Cumulative Incurred Claims [Line Items]
Cumulative Incurred Claims	$ 30,100,000
Claims Reserve	$ 1,800,000
Cumulative Number Of Reported Claims	23,480

Reinsurance (Cumulative Paid Cl

Reinsurance (Cumulative Paid Claims) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cumulative Paid Claims [Line Items]
Cumulative Paid Claims	$ 136
Incident Year 2015 [Member]
Cumulative Paid Claims [Line Items]
Cumulative Paid Claims	33.4	$ 33.4	$ 33.4	$ 33.4	$ 31.9
Incident Year 2016 [Member]
Cumulative Paid Claims [Line Items]
Cumulative Paid Claims	26	26	26	$ 24.7
Incident Year 2017 [Member]
Cumulative Paid Claims [Line Items]
Cumulative Paid Claims	22.6	22.5	$ 21.3
Incident Year 2018 [Member]
Cumulative Paid Claims [Line Items]
Cumulative Paid Claims	25.7	$ 24.2
Incident Year 2019 [Member]
Cumulative Paid Claims [Line Items]
Cumulative Paid Claims	$ 28.3

Reinsurance (Percentage Payout

Reinsurance (Percentage Payout Of Incurred Claims) (Details)	12 Months Ended
	Dec. 31, 2019
Percentage of Claims Paid During Period One [Member]
Percentage Payment by Period [Line Items]
Payout of Incurred Claims	94.70%
Percentage of Claims Paid During Period Two [Member]
Percentage Payment by Period [Line Items]
Payout of Incurred Claims	5.20%
Percentage of Claims Paid During Period Three [Member]
Percentage Payment by Period [Line Items]
Payout of Incurred Claims	0.10%
Percentage of Claims Paid During Period Four [Member]
Percentage Payment by Period [Line Items]
Payout of Incurred Claims	0.00%
Percentage of Claims Paid During Period Five [Member]
Percentage Payment by Period [Line Items]
Payout of Incurred Claims	0.00%

Other income (Schedule of Other

Other income (Schedule of Other Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Other Income	$ 68.6	$ 62.4	$ 57.4
Ancillary Product Profit Sharing [Member]
Disaggregation of Revenue [Line Items]
Other Income	37.9	30.6	23.9
Remarketing Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	12	11.2	10.9
Interest Income [Member]
Disaggregation of Revenue [Line Items]
Other Income	8.5	5	2.2
Dealer Enrollment Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	4.7	4.3	3.9
Dealer Support Products And Services [Member]
Disaggregation of Revenue [Line Items]
Other Income	2.5	4.1	4.8
GPS-SID Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	1.9	6.4	11.1
Other [Member]
Disaggregation of Revenue [Line Items]
Other Income	$ 1.1	$ 0.8	$ 0.6

Other Income (Disaggregation of

Other Income (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Other Income	$ 68.6	$ 62.4	$ 57.4
Ancillary Product Profit Sharing [Member]
Disaggregation of Revenue [Line Items]
Other Income	37.9	30.6	23.9
Remarketing Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	12	11.2	10.9
Interest Income [Member]
Disaggregation of Revenue [Line Items]
Other Income	8.5	5	2.2
Dealer Enrollment Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	4.7	4.3	3.9
Dealer Support Products And Services [Member]
Disaggregation of Revenue [Line Items]
Other Income	2.5	4.1	4.8
GPS-SID Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	1.9	6.4	11.1
Other [Member]
Disaggregation of Revenue [Line Items]
Other Income	1.1	$ 0.8	$ 0.6
Third Party Providers [Member]
Disaggregation of Revenue [Line Items]
Other Income	49.4
Third Party Providers [Member] | Ancillary Product Profit Sharing [Member]
Disaggregation of Revenue [Line Items]
Other Income	37.9
Third Party Providers [Member] | Remarketing Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Third Party Providers [Member] | Interest Income [Member]
Disaggregation of Revenue [Line Items]
Other Income	8.5
Third Party Providers [Member] | Dealer Enrollment Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Third Party Providers [Member] | Dealer Support Products And Services [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Third Party Providers [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Other Income	1.1
Dealers [Member]
Disaggregation of Revenue [Line Items]
Other Income	19.2
Dealers [Member] | Ancillary Product Profit Sharing [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Dealers [Member] | Remarketing Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	12
Dealers [Member] | Interest Income [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Dealers [Member] | Dealer Enrollment Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	4.7
Dealers [Member] | Dealer Support Products And Services [Member]
Disaggregation of Revenue [Line Items]
Other Income	2.5
Dealers [Member] | GPS-SID Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Dealers [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Other Income	51.1
Transferred over Time [Member] | Ancillary Product Profit Sharing [Member]
Disaggregation of Revenue [Line Items]
Other Income	37.9
Transferred over Time [Member] | Remarketing Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred over Time [Member] | Interest Income [Member]
Disaggregation of Revenue [Line Items]
Other Income	8.5
Transferred over Time [Member] | Dealer Enrollment Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	4.7
Transferred over Time [Member] | Dealer Support Products And Services [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred over Time [Member] | GPS-SID Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred over Time [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Other Income	17.5
Transferred at Point in Time [Member] | Ancillary Product Profit Sharing [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred at Point in Time [Member] | Remarketing Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	12
Transferred at Point in Time [Member] | Interest Income [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred at Point in Time [Member] | Dealer Enrollment Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	0
Transferred at Point in Time [Member] | Dealer Support Products And Services [Member]
Disaggregation of Revenue [Line Items]
Other Income	2.5
Transferred at Point in Time [Member] | GPS-SID Fees [Member]
Disaggregation of Revenue [Line Items]
Other Income	1.9
Transferred at Point in Time [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Other Income	$ 1.1

Other Income (Narrative) (Detai

Other Income (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019USD ($)
Other Income and Expenses [Abstract]
One-time enrollment fee in program	$ 9,850
Percentage of first accelerated Dealer Holdback payment retained	50.00%

Debt (Narrative) (Details)

Debt (Narrative) (Details)		Jan. 17, 2020USD ($)	Mar. 30, 2015USD ($)	Feb. 21, 2014USD ($)	Jan. 22, 2014USD ($)	Dec. 31, 2019USD ($)facility		Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 30, 2016
Debt Instrument [Line Items]
Senior notes						$ 1,187,800,000		$ 544,400,000
Document Period End Date						Dec. 31, 2019
Maximum hedging reserve						$ 1,000,000
Percentage of collections on contributed loans						6.00%
Monthly servicing fee per financing						6.00%
Repayments of senior notes						$ 148,200,000		0	$ 0
Loss on extinguishment of debt						1,800,000		0	0
Debt covenants						1
Proceeds from issuance of senior notes						$ 800,000,000		0	$ 0
Revolving Secured Line Of Credit [Member]
Debt Instrument [Line Items]
Debt maturity date						Jun. 22, 2022
Line of credit facility						$ 340,000,000
Percentage of net book value of loans						80.00%
Warehouse Facilities [Member]
Debt Instrument [Line Items]
Percentage of net book value of loans						80.00%
Number of warehouse facilities | facility						6
Debt financing amount						$ 1,225,000,000
Warehouse Facility II [Member]
Debt Instrument [Line Items]
Debt maturity date	[1]					Jul. 12, 2022
Debt financing amount						$ 400,000,000	[2]	$ 400,000,000
Interest rate						0.00%		0.00%
Warehouse Facility IV [Member]
Debt Instrument [Line Items]
Debt maturity date	[1]					Jul. 26, 2022
Debt financing amount						$ 300,000,000	[2]	$ 250,000,000
Interest rate						0.00%		0.00%
Warehouse Facility V [Member]
Debt Instrument [Line Items]
Debt maturity date	[3]					Aug. 17, 2021
Debt financing amount						$ 100,000,000	[2]	$ 100,000,000
Interest rate						0.00%		0.00%
Warehouse Facility VI [Member]
Debt Instrument [Line Items]
Debt maturity date	[1]					Sep. 30, 2022
Debt financing amount						$ 75,000,000
Interest rate						0.00%		0.00%
2017 Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes stated interest rate										9.125%
Debt Instrument, Repurchase Date				Feb. 21, 2014
Repayments of senior notes				$ 350,000,000
Loss on extinguishment of debt				$ (21,800,000)
2021 Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes						$ 151,800,000		$ 300,000,000
Debt Instrument, Issuance Date					Jan. 22, 2014
Debt maturity date					Feb. 15, 2021	Feb. 15, 2021	[4]
Debt financing amount					$ 300,000,000	$ 151,800,000
Senior notes stated interest rate					6.125%
Interest rate						6.125%		6.125%
2023 Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes						$ 250,000,000		$ 250,000,000
Debt Instrument, Issuance Date			Mar. 30, 2015
Debt maturity date			Mar. 15, 2023			Mar. 15, 2023	[4]
Debt financing amount			$ 250,000,000			$ 250,000,000
Senior notes stated interest rate			7.375%
Redemption price, percentage of principal amount redeemed			99.266%
Proceeds from issuance of senior notes			$ 248,200,000
Interest rate			7.50%			7.375%		7.375%
2024 Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes						$ 400,000,000		$ 0
Debt maturity date						Dec. 31, 2024
Debt financing amount						$ 400,000,000
Interest rate						5.125%		0.00%
2026 Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes						$ 400,000,000		$ 0
Debt maturity date						Mar. 15, 2026
Debt financing amount						$ 400,000,000
Interest rate						6.625%		0.00%
Mortgage [Member]
Debt Instrument [Line Items]
Senior notes						$ 11,300,000		$ 11,900,000
Debt maturity date						Aug. 6, 2023
Debt financing amount						$ 12,000,000
Interest rate						3.21%		3.85%
London Interbank Offered Rate (LIBOR) [Member] | Revolving Secured Line Of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						18750.00%
London Interbank Offered Rate (LIBOR) [Member] | Warehouse Facility II [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						17500.00%
London Interbank Offered Rate (LIBOR) [Member] | Warehouse Facility IV [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						20000.00%
London Interbank Offered Rate (LIBOR) [Member] | Warehouse Facility V [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						19000.00%
London Interbank Offered Rate (LIBOR) [Member] | Warehouse Facility VI [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						20000.00%
London Interbank Offered Rate (LIBOR) [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						15000.00%
Prime Rate [Member] | Revolving Secured Line Of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						8750.00%
Subsequent Event [Member] | 2021 Senior Notes [Member]
Debt Instrument [Line Items]
Repayments of senior notes		$ 151,800,000
[1]	Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date based on the cash flows of the pledged assets.
[2]	Interest rate cap agreements are in place to limit the exposure to increasing interest rates.
[3]	Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on August 17, 2023 will be due on that date.
[4]	On January 17, 2020, we used a portion of the net proceeds from the 2024 senior notes to redeem the remaining $151.8 million outstanding principal amount of the 2021 senior notes. We intend to use the remaining net proceeds from the 2024 senior notes, together with borrowings under our revolving credit facility and cash on hand to the extent available, to redeem in full the $250.0 million outstanding principal amount of the 2023 senior notes on or around March 15, 2020.

Debt Debt (Schedule of Principa

Debt Debt (Schedule of Principal Debt Outstanding) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Unamortized Debt Issuance Costs		$ (29.1)	$ (20.5)
Unamortized Discount		(0.8)	(1.1)
Debt Instrument, Carrying Amount		4,538.8	3,820.9
Debt Instrument, Principal Outstanding		4,568.7	3,842.5
Other Assets [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Costs	[1]	(3.2)	(2.9)
Revolving Secured Line Of Credit [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Costs	[2]	0	0
Unamortized Discount	[2]	0	0
Debt Instrument, Carrying Amount	[2]	0	171.9
Debt Instrument, Principal Outstanding	[2]	0	171.9
Secured financings [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Costs	[1]	(15.9)	(16)
Unamortized Discount	[1]	0	0
Debt Instrument, Carrying Amount	[1]	3,339.7	3,092.7
Debt Instrument, Principal Outstanding	[1]	3,355.6	3,108.7
Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Costs		(13.2)	(4.5)
Unamortized Discount		(0.8)	(1.1)
Debt Instrument, Carrying Amount		1,187.8	544.4
Debt Instrument, Principal Outstanding		1,201.8	550
Mortgage [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Costs		0	0
Unamortized Discount		0	0
Debt Instrument, Carrying Amount		11.3	11.9
Debt Instrument, Principal Outstanding		$ 11.3	$ 11.9
[1]	Warehouse facilities and Term ABS.
[2]	Excludes deferred debt issuance costs of $3.2 million and $2.9 million as of December 31, 2019 and December 31, 2018 , respectively, which are included in other assets.

Debt (Schedule Of General Infor

Debt (Schedule Of General Information Of Financing Transaction) (Details) - USD ($)		Mar. 30, 2015	Jan. 22, 2014	Dec. 31, 2019		Dec. 31, 2018
Revolving Secured Line Of Credit [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary				n/a
Debt maturity date				Jun. 22, 2022
Financing Amount				$ 340,000,000
Revolving Secured Line Of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				18750.00%
Revolving Secured Line Of Credit [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				8750.00%
Warehouse Facility II [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			CAC Warehouse Funding Corp. II
Debt maturity date	[2]			Jul. 12, 2022
Debt financing amount				$ 400,000,000	[3]	$ 400,000,000
Warehouse Facility II [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				17500.00%
Warehouse Facility IV [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			CAC Warehouse Funding LLC IV
Debt maturity date	[2]			Jul. 26, 2022
Debt financing amount				$ 300,000,000	[3]	250,000,000
Warehouse Facility IV [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				20000.00%
Warehouse Facility V [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			CAC Warehouse Funding LLC V
Debt maturity date	[4]			Aug. 17, 2021
Debt financing amount				$ 100,000,000	[3]	100,000,000
Warehouse Facility V [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				19000.00%
Warehouse Facility VI [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			CAC Warehouse Funding LLC VI
Debt maturity date	[2]			Sep. 30, 2022
Debt financing amount				$ 75,000,000
Warehouse Facility VI [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				20000.00%
Warehouse Facility VII [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			CAC Warehouse Funding LLC VII
Debt maturity date	[5]			Dec. 16, 2021
Debt financing amount				$ 150,000,000	[3]	150,000,000
Warehouse Facility VII [Member] | Commercial Paper Offered Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				20000.00%
Warehouse Facility VIII [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			CAC Warehouse Funding LLC VIII
Debt maturity date	[2]			Jul. 26, 2022
Debt financing amount	[3]			$ 200,000,000
Warehouse Facility VIII [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				19000.00%
Term ABS 2016-1 [Member]
Debt Instrument [Line Items]
Debt financing amount						$ 125,300,000
Term ABS 2016-3 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2016-3
Debt maturity date	[2]			Oct. 15, 2018
Debt financing amount				$ 350,000,000
Term ABS 2017-1 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2017-1
Debt maturity date	[2]			Feb. 15, 2019
Debt financing amount				$ 350,000,000
Term ABS 2017-2 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2017-2
Debt maturity date	[2]			Jun. 17, 2019
Debt financing amount				$ 450,000,000
Term ABS 2017-3 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2017-3
Debt maturity date	[2]			Oct. 15, 2019
Debt financing amount				$ 350,000,000
Term ABS 2018-1 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2018-1
Debt maturity date	[2]			Feb. 17, 2020
Debt financing amount				$ 500,000,000
Term ABS 2018-2 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2018-2
Debt maturity date	[2]			May 15, 2020
Debt financing amount				$ 450,000,000
Term ABS 2018-3 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2018-3
Debt maturity date	[2]			Aug. 17, 2020
Debt financing amount				$ 398,300,000
Term ABS 2019-1 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2019-1
Debt maturity date	[2]			Feb. 15, 2021
Debt financing amount				$ 402,500,000
Term ABS 2019-2 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2019-2
Debt maturity date	[6]			Aug. 15, 2022
Debt financing amount				$ 500,000,000
Term ABS 2019-3 [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[1]			Credit Acceptance Funding LLC 2019-3
Debt maturity date	[2]			Nov. 15, 2021
Debt financing amount				$ 351,700,000
2021 Senior Notes [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary				n/a
Debt maturity date			Feb. 15, 2021	Feb. 15, 2021	[7]
Debt financing amount			$ 300,000,000	$ 151,800,000
2023 Senior Notes [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary				n/a
Debt maturity date		Mar. 15, 2023		Mar. 15, 2023	[7]
Debt financing amount		$ 250,000,000		$ 250,000,000
2024 Senior Notes [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary				n/a
Debt maturity date				Dec. 31, 2024
Debt financing amount				$ 400,000,000
2026 Senior Notes [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary				n/a
Debt maturity date				Mar. 15, 2026
Debt financing amount				$ 400,000,000
Mortgage [Member]
Debt Instrument [Line Items]
Wholly-owned Subsidiary	[2]			Chapter 4 Properties, LLC
Debt maturity date				Aug. 6, 2023
Debt financing amount				$ 12,000,000
Mortgage [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				15000.00%
[1]	Financing made available only to a specified subsidiary of the Company
[2]	Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date based on the cash flows of the pledged assets.
[3]	Interest rate cap agreements are in place to limit the exposure to increasing interest rates.
[4]	Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on August 17, 2023 will be due on that date.
[5]	Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on December 16, 2023 will be due on that date.
[6]	Represents the revolving maturity date. The Company has the option to redeem and retire the indebtedness after the revolving maturity date. If we do not elect this option, the outstanding balance will amortize based on the cash flows of the pledged assets.
[7]	On January 17, 2020, we used a portion of the net proceeds from the 2024 senior notes to redeem the remaining $151.8 million outstanding principal amount of the 2021 senior notes. We intend to use the remaining net proceeds from the 2024 senior notes, together with borrowings under our revolving credit facility and cash on hand to the extent available, to redeem in full the $250.0 million outstanding principal amount of the 2023 senior notes on or around March 15, 2020.

Debt (Summary Of Additional Inf

Debt (Summary Of Additional Information Of Credit facilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revolving Secured Line Of Credit [Member]
Debt Instrument [Line Items]
Maximum outstanding balance	$ 282.9	$ 265.4
Average outstanding balance	77.2	40.6
Warehouse Facility II [Member]
Debt Instrument [Line Items]
Maximum outstanding balance	201	201
Average outstanding balance	78	3.3
Warehouse Facility IV [Member]
Debt Instrument [Line Items]
Maximum outstanding balance	100	99
Average outstanding balance	1.1	0.5
Warehouse Facility V [Member]
Debt Instrument [Line Items]
Maximum outstanding balance	35	99
Average outstanding balance	0.9	1.1
Warehouse Facility VI [Member]
Debt Instrument [Line Items]
Maximum outstanding balance	0	75
Average outstanding balance	0	0.4
Warehouse Facility VII [Member]
Debt Instrument [Line Items]
Maximum outstanding balance	101.5	150
Average outstanding balance	7.1	7.8
Warehouse Facility VIII [Member]
Debt Instrument [Line Items]
Maximum outstanding balance	145.3	0
Average outstanding balance	$ 7.2	$ 0

Debt (Schedule Of Outstanding D

Debt (Schedule Of Outstanding Debt Amount) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 30, 2015
Debt Instrument [Line Items]
Principal balance outstanding		$ 0	$ 171.9
Principal balance outstanding		1,187.8	544.4
Principal balance outstanding		3,339.7	3,092.7
Restricted cash and cash equivalents pledged as collateral		330.3	303.6	$ 255.6
Revolving Secured Line Of Credit [Member]
Debt Instrument [Line Items]
Principal balance outstanding		0	171.9
Amount available for borrowing	[1]	$ 340	$ 178.1
Interest rate		0.00%	4.38%
Warehouse Facility II [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 0	$ 0
Loans pledged as collateral		0	0
Restricted cash and cash equivalents pledged as collateral		1	1
Amount available for borrowing	[1]	$ 400	$ 400
Interest rate		0.00%	0.00%
Warehouse Facility IV [Member]
Debt Instrument [Line Items]
Principal balance outstanding			$ 0
Loans pledged as collateral			0
Restricted cash and cash equivalents pledged as collateral		$ 1	1
Amount available for borrowing	[1]	$ 300	$ 250
Interest rate		0.00%	0.00%
Warehouse Facility V [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 0
Loans pledged as collateral		0
Restricted cash and cash equivalents pledged as collateral		1	$ 1
Amount available for borrowing	[1]	$ 100	$ 100
Interest rate		0.00%	0.00%
Warehouse Facility VI [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 0	$ 0
Loans pledged as collateral		0	0
Restricted cash and cash equivalents pledged as collateral		0	0.1
Amount available for borrowing	[1]	$ 75	$ 75
Interest rate		0.00%	0.00%
Warehouse Facility VII [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 0	$ 0
Loans pledged as collateral		0	0
Restricted cash and cash equivalents pledged as collateral		1	1
Amount available for borrowing	[1]	$ 150	$ 150
Interest rate		0.00%	0.00%
Warehouse Facility VIII [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 0	$ 0
Loans pledged as collateral		0	0
Restricted cash and cash equivalents pledged as collateral		0	0
Amount available for borrowing	[1]	$ 200	$ 0
Interest rate		0.00%	0.00%
Term ABS 2016-1 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 0	$ 125.3
Loans pledged as collateral		0	320.8
Restricted cash and cash equivalents pledged as collateral		$ 0	$ 29.6
Interest rate		0.00%	4.41%
Term ABS 2016-2 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 0	$ 184.5
Loans pledged as collateral		0	335
Restricted cash and cash equivalents pledged as collateral		$ 0	$ 28.3
Interest rate		0.00%	3.20%
Term ABS 2016-3 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 51.8	$ 300.6
Loans pledged as collateral		219.5	392.7
Restricted cash and cash equivalents pledged as collateral		$ 23.5	$ 30.7
Interest rate		3.60%	2.59%
Term ABS 2017-1 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 120.9	$ 350
Loans pledged as collateral		292.8	429.8
Restricted cash and cash equivalents pledged as collateral		$ 26.1	$ 30.9
Interest rate		3.19%	2.78%
Term ABS 2017-2 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 277.2	$ 450
Loans pledged as collateral		426.7	548.4
Restricted cash and cash equivalents pledged as collateral		$ 35.1	$ 39.4
Interest rate		2.83%	2.72%
Term ABS 2017-3 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 303.2	$ 350
Loans pledged as collateral		393	426.1
Restricted cash and cash equivalents pledged as collateral		$ 29.3	$ 28.6
Interest rate		2.91%	2.88%
Term ABS 2018-1 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 500	$ 500
Loans pledged as collateral		609.5	614.5
Restricted cash and cash equivalents pledged as collateral		$ 43.8	$ 41.8
Interest rate		3.24%	3.24%
Term ABS 2018-2 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 450	$ 450
Loans pledged as collateral		550.4	552.2
Restricted cash and cash equivalents pledged as collateral		$ 37.6	$ 36.3
Interest rate		3.68%	3.68%
Term ABS 2018-3 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 398.3	$ 398.3
Loans pledged as collateral		487.7	578.8
Restricted cash and cash equivalents pledged as collateral		$ 32.3	$ 33.6
Interest rate		3.72%	3.72%
Term ABS 2019-1 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 402.5
Loans pledged as collateral		490.2
Restricted cash and cash equivalents pledged as collateral		$ 31.9
Interest rate		3.53%
Term ABS 2019-2 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 500
Loans pledged as collateral		628.5
Restricted cash and cash equivalents pledged as collateral		$ 38.6
Interest rate		3.13%
Term ABS 2019-3 [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 351.7
Loans pledged as collateral		428.6
Restricted cash and cash equivalents pledged as collateral		$ 27.2
Interest rate		2.56%
2021 Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 151.8	$ 300
Interest rate		6.125%	6.125%
2023 Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 250	$ 250
Interest rate		7.375%	7.375%		7.50%
2024 Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 400	$ 0
Interest rate		5.125%	0.00%
2026 Senior Notes [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 400	$ 0
Interest rate		6.625%	0.00%
Mortgage [Member]
Debt Instrument [Line Items]
Principal balance outstanding		$ 11.3	$ 11.9
Interest rate		3.21%	3.85%
[1]	Availability may be limited by the amount of assets pledged as collateral.

Debt (Schedule Of Outstanding T

Debt (Schedule Of Outstanding Term ABS Financings) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Term ABS 2016-3 [Member]
Debt Instrument [Line Items]
Debt financing close date	Oct. 27, 2016
Net Book Value Of Loans Pledged As Collateral	$ 437.8
Term ABS 2017-1 [Member]
Debt Instrument [Line Items]
Debt financing close date	Feb. 23, 2017
Net Book Value Of Loans Pledged As Collateral	$ 437.8
Term ABS 2017-2 [Member]
Debt Instrument [Line Items]
Debt financing close date	Jun. 29, 2017
Net Book Value Of Loans Pledged As Collateral	$ 563.2
Term ABS 2017-3 [Member]
Debt Instrument [Line Items]
Debt financing close date	Oct. 26, 2017
Net Book Value Of Loans Pledged As Collateral	$ 437.6
Term ABS 2018-1 [Member]
Debt Instrument [Line Items]
Debt financing close date	Feb. 22, 2018
Net Book Value Of Loans Pledged As Collateral	$ 625.1
Term ABS 2018-2 [Member]
Debt Instrument [Line Items]
Debt financing close date	May 24, 2018
Net Book Value Of Loans Pledged As Collateral	$ 562.6
Term ABS 2018-3 [Member]
Debt Instrument [Line Items]
Debt financing close date	Aug. 23, 2018
Net Book Value Of Loans Pledged As Collateral	$ 500.1
Term ABS 2019-1 [Member]
Debt Instrument [Line Items]
Debt financing close date	Feb. 21, 2019
Net Book Value Of Loans Pledged As Collateral	$ 503.1
Term ABS 2019-2 [Member]
Debt Instrument [Line Items]
Debt financing close date	Aug. 28, 2019
Net Book Value Of Loans Pledged As Collateral	$ 625.1
Term ABS 2019-3 [Member]
Debt Instrument [Line Items]
Debt financing close date	Nov. 21, 2019
Net Book Value Of Loans Pledged As Collateral	$ 439.6

Debt (Scheduled Principal Matur

Debt (Scheduled Principal Maturities Of Debt) (Details) $ in Millions	Dec. 31, 2019USD ($)
2020	$ 1,528.5
2021	1,017.9
2022	916.2
2023	306.1
2024	400
After 2024	400
Total	4,568.7
Revolving Secured Line Of Credit [Member]
2020	0
2021	0
2022	0
2023	0
2024	0
After 2024	0
Total	0
Secured Debt [Member]
2020	0
2021	0
2022	0
2023	0
2024	0
After 2024	0
Total	0
Term ABS Financing [Member]
2020	1,376	[1]
2021	1,017.2	[1]
2022	915.5	[1]
2023	46.9	[1]
2024	0	[1]
After 2024	0	[1]
Total	3,355.6	[1]
Senior Notes [Member]
2020	151.8
2021	0
2022	0
2023	250
2024	400
After 2024	400
Total	1,201.8
Mortgage [Member]
2020	0.7
2021	0.7
2022	0.7
2023	9.2
2024	0
After 2024	0
Total	$ 11.3
[1]	The principal maturities of the Term ABS transactions are estimated based on forecasted collections.

Derivative And Hedging Instru_3

Derivative And Hedging Instruments (Schedule Of Terms Of Interest Rate Cap Agreements) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018
Derivative [Line Items]
Document Period End Date		Dec. 31, 2019
Interest rate swap fair value		$ 0.1		$ 0
Warehouse Facility II [Member]
Derivative [Line Items]
Debt financing amount		400	[1]	400
Warehouse Facility II [Member] | 5.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 205		$ 205
Cap Interest Rate	[2]	5.50%		5.50%
Warehouse Facility IV [Member]
Derivative [Line Items]
Debt financing amount		$ 300	[1]	$ 250
Derivative, Notional Amount		300		250
Warehouse Facility IV [Member] | 5.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount				$ 25
Cap Interest Rate	[2]			5.50%
Warehouse Facility IV [Member] | 6.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 100		$ 75
Cap Interest Rate	[2]	6.50%		6.50%
Warehouse Facility IV [Member] | Additional 6.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 150		$ 150
Cap Interest Rate	[2]	6.50%		6.50%
Warehouse Facility IV [Member] | Second Additional 6.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 50
Cap Interest Rate	[2]	6.50%
Warehouse Facility V [Member]
Derivative [Line Items]
Debt financing amount		$ 100	[1]	$ 100
Warehouse Facility V [Member] | 6.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 75		$ 75
Cap Interest Rate	[2]	6.50%		6.50%
Term ABS 2016-1 [Member]
Derivative [Line Items]
Debt financing amount				$ 125.3
Term ABS 2016-1 [Member] | 5.00% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount				$ 64.2
Cap Interest Rate	[2]			5.00%
Warehouse Facility VII [Member]
Derivative [Line Items]
Debt financing amount		$ 150	[1]	$ 150
Warehouse Facility VII [Member] | 5.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 143.8		$ 150
Cap Interest Rate	[2]	5.50%		5.50%
Warehouse Facility VIII [Member]
Derivative [Line Items]
Debt financing amount	[1]	$ 200
Warehouse Facility VIII [Member] | 5.50% Cap Interest Rate [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 200
Cap Interest Rate	[2]	5.50%
[1]	Interest rate cap agreements are in place to limit the exposure to increasing interest rates.
[2]	Rate excludes the spread over the corresponding LIBOR or commercial paper rate.

Derivative And Hedging Instru_4

Derivative And Hedging Instruments (Schedule Of Effect Of Derivative Instruments Not Designated As Hedging Instruments In Consolidated Statements Of Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest Expense [Member] | Interest Rate Caps [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) / Gain Recognized in Income on Derivatives	$ (0.1)	$ (0.1)	$ (0.1)

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards	$ 3.4
U.S. federal statutory rate	21.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ 99.8
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	5.5
Unrecognized tax benefit that, if recognized, would favorably affect our effective income tax rate	41.7
Accrued interest related to uncertain tax positions	$ 8.9	$ 7.5

Income Taxes (Schedule Of Incom

Income Taxes (Schedule Of Income Tax Provision) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income before provision for income taxes	$ 215.2	$ 219.1	$ 215.3	$ 206.3	$ 201	$ 198.4	$ 198	$ 157.7	$ 855.9	$ 755.1	$ 583.8
Current provision for income taxes, Federal									94.1	110.9	184.6
Current provision for income taxes, State									18.7	19.5	13.5
Current provision for income taxes									112.8	130.4	198.1
Deferred provision for income taxes, Federal									70.7	35	(88.4)
Deferred provision for income taxes, State									14.8	14.3	2.7
Deferred provision for income taxes									85.5	49.3	(85.7)
Interest									1.5	1.4	1.2
Unrecognized Tax Benefits, Income Tax Penalties Expense									0	0	0
Interest and penalties expense (benefit)									1.5	1.4	1.2
Provision for income taxes									$ 199.8	$ 181.1	$ 113.6

Income Taxes (Schedule Of Defer

Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Allowance for credit losses	$ 128.3	$ 110.1
Stock-based compensation	15.5	16.5
Deferred state net operating loss	3.6	4.3
Other, net	13.2	7
Total deferred tax assets	160.6	137.9
Valuation of Loans receivable	471.3	363.9
Deferred Loan origination costs	1.6	1.5
Other, net	10.2	9.2
Total deferred tax liabilities	483.1	374.6
Deferred income taxes, net	$ 322.5	$ 236.7

Income Taxes (Schedule Of Recon

Income Taxes (Schedule Of Reconciliation Of The U.S. Federal Statutory Rate To Effective Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
U.S. federal statutory rate	21.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	0.00%	(0.70%)	(17.10%)
State income taxes	3.10%	3.50%	1.70%
Effective Income Tax Rate Reconciliation, Deduction, Percent	(0.90%)	(0.10%)	(0.40%)
Other	0.10%	0.30%	0.30%
Effective tax rate	23.30%	24.00%	19.50%

Income Taxes (Schedule Of Unrec

Income Taxes (Schedule Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Unrecognized tax benefits at January 1	$ 38.7	$ 31.9	$ 27.7
Additions for tax positions of the current year	10	10.2	6.7
Additions for tax positions of prior years	0	0	0.3
Reductions for tax positions of prior years	0	0	(0.4)
Settlements	2.3	0	0
Reductions as a result of a lapse of the statute of limitations	(4.7)	(3.4)	(2.4)
Unrecognized tax benefits at December 31	$ 41.7	$ 38.7	$ 31.9

Net Income Per Share (Details)

Net Income Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share [Abstract]
Common shares	18,614,719	19,144,785	19,245,188
Vested restricted stock units	285,537	301,282	252,531
Basic number of weighted average shares outstanding	18,900,256	19,446,067	19,497,719
Dilutive effect of restricted stock and restricted stock units	76,304	86,245	61,217
Weighted average shares outstanding: Diluted	18,976,560	19,532,312	19,558,936
Restricted stock outstanding excluded from calculation of diluted net income per share	0	0	250

Stock Repurchases (Details)

Stock Repurchases (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Feb. 13, 2017
Equity, Class of Treasury Stock [Line Items]
Increase in number of shares authorized for repurchase					1,000,000,000,000
Number of shares authorized for repurchase		769,713
Common stock repurchased, shares		712,448	342,928	610,260
Common stock repurchased, value		$ 300.4	$ 129.1	$ 123.5
Open Market [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased, shares	[1]	669,752	336,743	588,580
Common stock repurchased, value	[1]	$ 282.2	$ 127.1	$ 119.1
Other [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased, shares	[2]	42,696	6,185	21,680
Common stock repurchased, value	[2]	$ 18.2	$ 2	$ 4.4
[1]	Represents repurchases under authorizations by the board of directors for the repurchase of shares by us from time to time in the open market or in privately negotiated transactions. On November 7, 2019, the board of directors authorized the repurchase of up to one million shares of our common stock in addition to the board’s prior authorizations. As of December 31, 2019 , we had authorization to repurchase 769,713 shares of our common stock.
[2]	Represents shares of common stock released to us by team members as payment of tax withholdings upon the vesting of restricted stock and restricted stock units and the conversion of restricted stock units to common stock.

Stock-Based Compensation Plan_2

Stock-Based Compensation Plans (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	Mar. 26, 2012	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance		121,621
Fair value of shares vested		$ 7.9	$ 4.8	$ 5.6
Intrinsic value of restricted stock units exercised		$ 36.9	$ 0.5	$ 6.9
Weighted average recognition period		1 year 8 months 12 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of shares granted		$ 441.54	$ 317.87	$ 200.79
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of shares granted		$ 453.64	$ 363.11	$ 206.45
Restricted stock units converted to common stock, shares		87,842
Ten Year Vesting [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		10 years
Five Year Vesting [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years
Three Year Vesting [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Minimum [Member] | Fifteen Year Vesting [Member] | Restricted Stock [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		15 years
Minimum [Member] | Three Year Vesting [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized for issuance	500,000
Total authorized shares for plan issuance		2,000,000

Stock-Based Compensation Plan_3

Stock-Based Compensation Plans (Summary Of Restricted Stock Activity) (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Nonvested as of December 31	150,647
Granted	5,301
Vested	(17,971)
Forfeited	(474)
Outstanding, Nonvested as of December 31	137,503	150,647
Weighted Average Grant-Date Fair Value Per Share, Non-vested as of December 31	$ 117.41
Weighted Average Grant-Date Fair Value Per Share, Nonvested, Granted	441.54	$ 317.87	$ 200.79
Weighted Average Grant-Date Fair Value Per Share, Nonvested, Vested	148.14
Weighted Average Grant-Date Fair Value Per Share, Nonvested, Forfeited	363.16
Weighted Average Grant-Date Fair Value Per Share, Non-vested as of December 31	$ 125.04	$ 117.41

Stock-Based Compensation Plan_4

Stock-Based Compensation Plans (Summary Of Restricted Stock Units Activity) (Details) - Restricted Stock Units (RSUs) [Member] - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, as of December 31		516,773
Granted		3,000
Converted		(87,842)
Forfeited		3,100
Outstanding, as of December 31		428,831	[1]	516,773
Vested		285,250
Weighted Average Grant-Date Fair Value Per Share, Outstanding as of December 31		$ 127.07
Weighted Average Grant-Date Fair Value Per Share, Nonvested, Granted		453.64		$ 363.11	$ 206.45
Weighted Average Grant-Date Fair Value Per Share, Nonvested, Converted		106.54
Weighted Average Grant-Date Fair Value Per Share, Nonvested, Forfeited		206.45
Weighted Average Grant-Date Fair Value Per Share, Outstanding as of December 31		132.99		$ 127.07
Weighted Average Grant-Date Fair Value Per Share, Vested as of December 31		$ 124.67
Aggregate Intrinsic Value, Outstanding	[2]	$ 189.7
Aggregate Intrinsic Value, Vested	[2]	$ 126.2
Weighted Average Remaining Contractual Term, Outstanding		4 years 1 month 6 days
Weighted Average Remaining Contractual Term, Vested		3 years 7 months 6 days
[1]	No RSUs outstanding at December 31, 2019 were convertible to shares of common stock.
[2]	The intrinsic value of RSUs is measured by applying the closing stock price as of December 31, 2019 to the applicable number of units.

Stock-Based Compensation Plan_5

Stock-Based Compensation Plans (Schedule Of Stock Based Compensation Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 7.6	$ 10.3	$ 15.4
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	3	2.7	2.9
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 4.6	$ 7.6	$ 12.5

Stock-Based Compensation Plan_6

Stock-Based Compensation Plans (Schedule Of Future Share-Based Compensation Cost) (Details) $ in Millions	Dec. 31, 2019USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	$ 4.7
2021	1.8
2022	1
2023	0.7
2024	0.5
Thereafter	0.5
Total	9.2
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	2.8
2021	0.6
2022	0.1
2023	0
2024	0
Thereafter	0
Total	3.5
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2020	1.9
2021	1.2
2022	0.9
2023	0.7
2024	0.5
Thereafter	0.5
Total	$ 5.7

Commitments and Contingencies_2

Commitments and Contingencies (Lease Commitments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 1.8	$ 2.2	$ 1.5
2020	1.6
2021	1.2
2022	0.6
2023	0
2024	0
Total	$ 3.4

Quarterly Financial Data (Detai

Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended																12 Months Ended
	Dec. 31, 2019		Sep. 30, 2019		Jun. 30, 2019		Mar. 31, 2019		Dec. 31, 2018		Sep. 30, 2018		Jun. 30, 2018		Mar. 31, 2018		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 385.9		$ 378.7		$ 370.6		$ 353.8		$ 342.8		$ 332		$ 315.4		$ 295.6		$ 1,489	$ 1,285.8	$ 1,110
Income before provision for income taxes	215.2		219.1		215.3		206.3		201		198.4		198		157.7		855.9	755.1	583.8
Net income	$ 161.9		$ 165.4		$ 164.4		$ 164.4		$ 151.9		$ 151		$ 151		$ 120.1		$ 656.1	$ 574	$ 470.2
Net income per share: Basic	$ 8.63	[1]	$ 8.73	[1]	$ 8.68	[1]	$ 8.67	[1]	$ 7.82	[1]	$ 7.76	[1]	$ 7.76	[1]	$ 6.18	[1]	$ 34.71	$ 29.52	$ 24.12
Net income per share: Diluted	$ 8.60	[1]	$ 8.73	[1]	$ 8.68	[1]	$ 8.65	[1]	$ 7.79	[1]	$ 7.75	[1]	$ 7.75	[1]	$ 6.17	[1]	$ 34.57	$ 29.39	$ 24.04
[1]	Basic and diluted net income per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted net income per share.

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Millions	Jan. 17, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Repayments of senior notes		$ 148.2	$ 0	$ 0
2021 Senior Notes [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Repayments of senior notes	$ 151.8