XML 13 R2.htm IDEA: XBRL DOCUMENT
v3.23.1

Pay vs Performance Disclosure - USD ($) | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 03, 2021 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure [Table] |  |  |  |  |
Pay vs Performance [Table Text Block] |  |  | PAY VERSUS PERFORMANCE As required by Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 402(v) of Regulation S-K (the “PVP Requirements”), we are providing the following information about the relationship between compensation reported in the summary compensation table (“SCT”) and compensation actually paid (“CAP”) as calculated under the PVP Requirements to our principal executive officer (“PEO”) and our other named executive officers (“NEOs”) and certain financial performance measures. The disclosure covers our three most recent fiscal years, which will expand incrementally over the next two years to a rolling five years.
|  | Kenneth S. Booth |  | Brett A. Roberts |  |  |  |  |  | Value of Initial Fixed $100 Investment Based on: (d) |  |  |  |
Year |  | SCT Total for PEO ($) (a) |  | CAP to PEO ($) (b) |  | SCT Total for PEO ($) (a) |  | CAP to PEO ($) (b) |  | Average SCT Total for NEOs ($) (c) |  | CAP to NEOs ($) (b) (c) |  | Total Shareholder Return ($) |  | Peer Group Total Shareholder Return ($) |  | Net Income ($ in millions) |  | Economic Profit ($ in millions) (e)
2022 |  | $ | 1,015,250 |  |  | $ | (22,614,425) |  |  | n/a |  | n/a |  | $ | 4,418,311 |  |  | $ | 1,709,981 |  |  | $ | 107.24 |  |  | $ | 125.51 |  |  | $ | 535.8 |  |  | $ | 476.6 |
2021 |  | 30,526,345 |  |  | 59,123,384 |  |  | $ | 359,911 |  |  | (46,514,489) |  |  | 10,101,413 |  |  | 15,536,684 |  |  | 155.47 |  |  | 148.00 |  |  | 958.3 |  |  | 574.1 |
2020 |  | n/a |  | n/a |  | 1,039,250 |  |  | (15,506,950) |  |  | 1,895,287 |  |  | 1,754,780 |  |  | 78.25 |  |  | 116.40 |  |  | 421.0 |  |  | 471.3 |
(a)During 2022, our PEO was Mr. Booth. During 2021, our PEOs were Mr. Roberts (until his retirement effective May 3, 2021) and Mr. Booth (beginning on May 3, 2021). During 2020, our PEO was Mr. Roberts. (b)Compensation actually paid, as computed under SEC rules, requires starting with the “Total” column of the SCT and making certain adjustments to reflect adjusted values to equity awards based on stock prices as of year end or the relevant vesting dates, and in the case of our stock option awards, various other accounting valuation assumptions. The following table reflects the adjustments made to SCT total compensation to compute CAP for our PEO and average CAP for our non-PEO NEOs:
|  | 2022 |  | 2021 |  | 2020
|  | PEO ($) |  | NEOs ($) |  | PEO (Booth) ($) |  | PEO (Roberts) ($) |  | NEOs ($) |  | PEO ($) |  | NEOs ($)
Compensation per SCT |  | $ | 1,015,250 |  |  | $ | 4,418,311 |  |  | $ | 30,526,345 |  |  | $ | 359,911 |  |  | $ | 10,101,413 |  |  | $ | 1,039,250 |  |  | $ | 1,895,287 |
Adjustments related to Stock Options |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deduction for Amounts Reported under the “Option Awards” Column in the SCT |  | — |  |  | (1,885,347) |  |  | (29,623,631) |  |  | — |  |  | (9,403,018) |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Remain Unvested as of Year end |  | — |  |  | 1,630,624 |  |  | 53,755,806 |  |  | — |  |  | 10,463,258 |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Vested during year |  | — |  |  | — |  |  | 4,392,539 |  |  | — |  |  | 4,304,688 |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end |  | (17,456,114) |  |  | (1,554,222) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Awards Granted Prior to year that Vested during year |  | (6,173,561) |  |  | (916,535) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Adjustments related to RSUs and restricted shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deduction for Amounts Reported under the “Stock Awards” Column in the SCT |  | — |  |  | (2,117,650) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Remain Unvested as of Year end |  | — |  |  | 2,134,800 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (17,314,200) |  |  | (175,547) |
Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Awards Granted Prior to year that Vested during year |  | — |  |  | — |  |  | 72,325 |  |  | 1,585,200 |  |  | 70,343 |  |  | 768,000 |  |  | 35,040 |
Deduction of Fair Value of Awards Granted Prior to Year that were Forfeited during year |  | — |  |  | — |  |  | — |  |  | (48,459,600) |  |  | — |  |  | — |  |  | — |
Compensation Actually Paid |  | $(22,614,425) |  | $1,709,981 |  | $59,123,384 |  | $(46,514,489) |  | $15,536,684 |  | $(15,506,950) |  | $1,754,780
(c)During 2022, our non-PEO NEOs consisted of Messrs. Mohan, Rostami, and Smith and Ms. Rummler. During 2021, our non-PEO NEOs consisted of Messrs. Busk, Charles A. Pearce, Smith, and Ulatowski. During 2020, our non-PEO NEOs consisted of Messrs. Booth, Pearce, Smith, and Ulatowski. (d)This assumes that $100 was invested in Common Stock and in a market index representing our peer group on January 1, 2020, and assumes the reinvestment of dividends. The peer group market index used for this purpose is the Dow Jones U.S. Financial Services Index. (e)Economic profit is an important financial performance measure used by the Company to evaluate business decisions and strategies and our financial performance, and is used to link certain compensation actually paid to our non-PEO NEOs to Company performance (Company-Selected Measure). The following is a reconciliation of GAAP net income to economic profit:
(In millions) |  | For the Years Ended December 31,
|  | 2022 |  | 2021 |  | 2020
GAAP net income |  | $ | 535.8 |  |  | $ | 958.3 |  |  | $ | 421.0 |
Floating yield adjustment (after-tax) |  | (196.5) |  |  | (148.5) |  |  | (169.6) |
GAAP provision for credit losses (after-tax) |  | 370.7 |  |  | 6.5 |  |  | 428.8 |
Senior notes adjustment (after-tax) |  | (2.1) |  |  | (2.1) |  |  | 4.0 |
Income tax adjustment |  | 12.2 |  |  | 12.6 |  |  | 2.1 |
Adjusted net income |  | 720.1 |  |  | 826.8 |  |  | 686.3 |
Adjusted interest expense (after-tax) |  | 130.4 |  |  | 128.5 |  |  | 149.5 |
Adjusted net income plus interest expense (after-tax) |  | 850.5 |  |  | 955.3 |  |  | 835.8 |
Less: cost of capital |  | 373.9 |  |  | 381.2 |  |  | 364.5 |
Economic profit |  | $ | 476.6 |  |  | $ | 574.1 |  |  | $ | 471.3 |
Company Selected Measure Name |  |  | Economic profit |  |
Named Executive Officers, Footnote [Text Block] |  |  | (c)During 2022, our non-PEO NEOs consisted of Messrs. Mohan, Rostami, and Smith and Ms. Rummler. During 2021, our non-PEO NEOs consisted of Messrs. Busk, Charles A. Pearce, Smith, and Ulatowski. During 2020, our non-PEO NEOs consisted of Messrs. Booth, Pearce, Smith, and Ulatowski. |  |
Peer Group Issuers, Footnote [Text Block] |  |  | This assumes that $100 was invested in Common Stock and in a market index representing our peer group on January 1, 2020, and assumes the reinvestment of dividends. The peer group market index used for this purpose is the Dow Jones U.S. Financial Services Index. |  |
Adjustment To PEO Compensation, Footnote [Text Block] |  |  | Compensation actually paid, as computed under SEC rules, requires starting with the “Total” column of the SCT and making certain adjustments to reflect adjusted values to equity awards based on stock prices as of year end or the relevant vesting dates, and in the case of our stock option awards, various other accounting valuation assumptions. The following table reflects the adjustments made to SCT total compensation to compute CAP for our PEO and average CAP for our non-PEO NEOs:
|  | 2022 |  | 2021 |  | 2020
|  | PEO ($) |  | NEOs ($) |  | PEO (Booth) ($) |  | PEO (Roberts) ($) |  | NEOs ($) |  | PEO ($) |  | NEOs ($)
Compensation per SCT |  | $ | 1,015,250 |  |  | $ | 4,418,311 |  |  | $ | 30,526,345 |  |  | $ | 359,911 |  |  | $ | 10,101,413 |  |  | $ | 1,039,250 |  |  | $ | 1,895,287 |
Adjustments related to Stock Options |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deduction for Amounts Reported under the “Option Awards” Column in the SCT |  | — |  |  | (1,885,347) |  |  | (29,623,631) |  |  | — |  |  | (9,403,018) |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Remain Unvested as of Year end |  | — |  |  | 1,630,624 |  |  | 53,755,806 |  |  | — |  |  | 10,463,258 |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Vested during year |  | — |  |  | — |  |  | 4,392,539 |  |  | — |  |  | 4,304,688 |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end |  | (17,456,114) |  |  | (1,554,222) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Awards Granted Prior to year that Vested during year |  | (6,173,561) |  |  | (916,535) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Adjustments related to RSUs and restricted shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deduction for Amounts Reported under the “Stock Awards” Column in the SCT |  | — |  |  | (2,117,650) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Remain Unvested as of Year end |  | — |  |  | 2,134,800 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (17,314,200) |  |  | (175,547) |
Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Awards Granted Prior to year that Vested during year |  | — |  |  | — |  |  | 72,325 |  |  | 1,585,200 |  |  | 70,343 |  |  | 768,000 |  |  | 35,040 |
Deduction of Fair Value of Awards Granted Prior to Year that were Forfeited during year |  | — |  |  | — |  |  | — |  |  | (48,459,600) |  |  | — |  |  | — |  |  | — |
Compensation Actually Paid |  | $(22,614,425) |  | $1,709,981 |  | $59,123,384 |  | $(46,514,489) |  | $15,536,684 |  | $(15,506,950) |  | $1,754,780
Non-PEO NEO Average Total Compensation Amount |  |  | $ 4,418,311 | $ 10,101,413 | $ 1,895,287
Non-PEO NEO Average Compensation Actually Paid Amount |  |  | $ 1,709,981 | 15,536,684 | 1,754,780
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] |  |  | Compensation actually paid, as computed under SEC rules, requires starting with the “Total” column of the SCT and making certain adjustments to reflect adjusted values to equity awards based on stock prices as of year end or the relevant vesting dates, and in the case of our stock option awards, various other accounting valuation assumptions. The following table reflects the adjustments made to SCT total compensation to compute CAP for our PEO and average CAP for our non-PEO NEOs:
|  | 2022 |  | 2021 |  | 2020
|  | PEO ($) |  | NEOs ($) |  | PEO (Booth) ($) |  | PEO (Roberts) ($) |  | NEOs ($) |  | PEO ($) |  | NEOs ($)
Compensation per SCT |  | $ | 1,015,250 |  |  | $ | 4,418,311 |  |  | $ | 30,526,345 |  |  | $ | 359,911 |  |  | $ | 10,101,413 |  |  | $ | 1,039,250 |  |  | $ | 1,895,287 |
Adjustments related to Stock Options |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deduction for Amounts Reported under the “Option Awards” Column in the SCT |  | — |  |  | (1,885,347) |  |  | (29,623,631) |  |  | — |  |  | (9,403,018) |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Remain Unvested as of Year end |  | — |  |  | 1,630,624 |  |  | 53,755,806 |  |  | — |  |  | 10,463,258 |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Vested during year |  | — |  |  | — |  |  | 4,392,539 |  |  | — |  |  | 4,304,688 |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end |  | (17,456,114) |  |  | (1,554,222) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Awards Granted Prior to year that Vested during year |  | (6,173,561) |  |  | (916,535) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Adjustments related to RSUs and restricted shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deduction for Amounts Reported under the “Stock Awards” Column in the SCT |  | — |  |  | (2,117,650) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase for Fair Value of Awards Granted during Year that Remain Unvested as of Year end |  | — |  |  | 2,134,800 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (17,314,200) |  |  | (175,547) |
Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Awards Granted Prior to year that Vested during year |  | — |  |  | — |  |  | 72,325 |  |  | 1,585,200 |  |  | 70,343 |  |  | 768,000 |  |  | 35,040 |
Deduction of Fair Value of Awards Granted Prior to Year that were Forfeited during year |  | — |  |  | — |  |  | — |  |  | (48,459,600) |  |  | — |  |  | — |  |  | — |
Compensation Actually Paid |  | $(22,614,425) |  | $1,709,981 |  | $59,123,384 |  | $(46,514,489) |  | $15,536,684 |  | $(15,506,950) |  | $1,754,780
Compensation Actually Paid vs. Total Shareholder Return [Text Block] |  |  |  |  |
Compensation Actually Paid vs. Net Income [Text Block] |  |  |  |  |
Compensation Actually Paid vs. Company Selected Measure [Text Block] |  |  |  |  |
Tabular List [Table Text Block] |  |  | Company Performance Metrics. Listed below are the financial performance measures, including the Company-Selected Measure, which in our assessment represent the most important financial performance measures we used in 2022 to link CAP to the Company’s named executive officers to Company performance. For 2022, the Company used fewer than three financial performance metrics to link CAP to the Company’s named executive officers to Company performance.
Measure |  | Nature |  | Explanation
Economic Profit |  | Financial Measure |  | Economic profit is a non-GAAP financial measure we use to evaluate our financial results and determine profit-sharing for team members, which is available to all team members including named executive officers, with the exception of our Chief Executive Officer.
Share price |  | Financial Measure |  | Our stock option awards provide value only if the market price of our Common Stock increases above the exercise price of the stock options.
Total Shareholder Return Amount |  |  | $ 107.24 | 155.47 | 78.25
Peer Group Total Shareholder Return Amount |  |  | 125.51 | 148.00 | 116.40
Net Income (Loss) |  |  | $ 535.8 | $ 958.3 | $ 421.0
Company Selected Measure Amount |  |  | 476.6 | 574.1 | 471.3
PEO Name | Brett A. Roberts | Kenneth S. Booth | Kenneth S. Booth |  | Brett A. Roberts
Measure [Axis]: 1 |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Measure Name |  |  | Economic Profit |  |
Non-GAAP Measure Description [Text Block] |  |  | Economic profit is a non-GAAP financial measure we use to evaluate our financial results and determine profit-sharing for team members, which is available to all team members including named executive officers, with the exception of our Chief Executive Officer. |  |
Measure [Axis]: 2 |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Measure Name |  |  | Share price |  |
Kenneth S. Booth [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
PEO Total Compensation Amount |  |  | $ 1,015,250 | $ 30,526,345 |
PEO Actually Paid Compensation Amount |  |  | (22,614,425) | 59,123,384 |
Brett A. Roberts [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
PEO Total Compensation Amount |  |  |  | 359,911 | $ 1,039,250
PEO Actually Paid Compensation Amount |  |  |  | (46,514,489) | (15,506,950)
PEO [Member] | Kenneth S. Booth [Member] | Deduction for Amounts Reported under the “Option Awards” Column in the SCT [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | (29,623,631) |
PEO [Member] | Kenneth S. Booth [Member] | Increase for Fair Value of Option Awards Granted during Year that Remain Unvested as of Year end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 53,755,806 |
PEO [Member] | Kenneth S. Booth [Member] | Increase for Fair Value of Option Awards Granted during Year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 4,392,539 |
PEO [Member] | Kenneth S. Booth [Member] | Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Option Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | (17,456,114) | 0 |
PEO [Member] | Kenneth S. Booth [Member] | Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Option Awards Granted Prior to year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | (6,173,561) | 0 |
PEO [Member] | Kenneth S. Booth [Member] | Deduction for Amounts Reported under the “Stock Awards” Column in the SCT [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 0 |
PEO [Member] | Kenneth S. Booth [Member] | Increase for Fair Value of Stock Awards Granted during Year that Remain Unvested as of Year end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 0 |
PEO [Member] | Kenneth S. Booth [Member] | Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Stock Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 0 |
PEO [Member] | Kenneth S. Booth [Member] | Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Stock Awards Granted Prior to year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 72,325 |
PEO [Member] | Kenneth S. Booth [Member] | Deduction of Fair Value of Stock Awards Granted Prior to Year that were Forfeited during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 0 |
PEO [Member] | Brett A. Roberts [Member] | Deduction for Amounts Reported under the “Option Awards” Column in the SCT [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | 0
PEO [Member] | Brett A. Roberts [Member] | Increase for Fair Value of Option Awards Granted during Year that Remain Unvested as of Year end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | 0
PEO [Member] | Brett A. Roberts [Member] | Increase for Fair Value of Option Awards Granted during Year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | 0
PEO [Member] | Brett A. Roberts [Member] | Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Option Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | 0
PEO [Member] | Brett A. Roberts [Member] | Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Option Awards Granted Prior to year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | 0
PEO [Member] | Brett A. Roberts [Member] | Deduction for Amounts Reported under the “Stock Awards” Column in the SCT [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | 0
PEO [Member] | Brett A. Roberts [Member] | Increase for Fair Value of Stock Awards Granted during Year that Remain Unvested as of Year end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | 0
PEO [Member] | Brett A. Roberts [Member] | Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Stock Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 0 | (17,314,200)
PEO [Member] | Brett A. Roberts [Member] | Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Stock Awards Granted Prior to year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | 1,585,200 | 768,000
PEO [Member] | Brett A. Roberts [Member] | Deduction of Fair Value of Stock Awards Granted Prior to Year that were Forfeited during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  |  | (48,459,600) | 0
Non-PEO NEO [Member] | Deduction for Amounts Reported under the “Option Awards” Column in the SCT [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | (1,885,347) | (9,403,018) | 0
Non-PEO NEO [Member] | Increase for Fair Value of Option Awards Granted during Year that Remain Unvested as of Year end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 1,630,624 | 10,463,258 | 0
Non-PEO NEO [Member] | Increase for Fair Value of Option Awards Granted during Year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 4,304,688 | 0
Non-PEO NEO [Member] | Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Option Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | (1,554,222) | 0 | 0
Non-PEO NEO [Member] | Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Option Awards Granted Prior to year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | (916,535) | 0 | 0
Non-PEO NEO [Member] | Deduction for Amounts Reported under the “Stock Awards” Column in the SCT [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | (2,117,650) | 0 | 0
Non-PEO NEO [Member] | Increase for Fair Value of Stock Awards Granted during Year that Remain Unvested as of Year end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 2,134,800 | 0 | 0
Non-PEO NEO [Member] | Increase/deduction for Change in Fair Value from prior Year-end to current Year-end of Stock Awards Granted Prior to Year that were Outstanding and Unvested as of Year-end [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 0 | (175,547)
Non-PEO NEO [Member] | Increase/deduction for Change in Fair Value from prior Year-end to Vesting Date of Stock Awards Granted Prior to year that Vested during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | 0 | 70,343 | 35,040
Non-PEO NEO [Member] | Deduction of Fair Value of Stock Awards Granted Prior to Year that were Forfeited during year [Member] |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |
Adjustment to Compensation Amount |  |  | $ 0 | $ 0 | $ 0

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iii + Details
Name: | ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_MeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_NonGaapMeasureDescriptionTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupIssuersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupTotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTable
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 6 + Details
Name: | ecd_TabularListTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 65 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126732423&loc=SL123482106-238011 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 17: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126958026&loc=SL5780133-109256 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669619-108580 Reference 25: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760 Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669625-108580 Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 34: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 35: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_MeasureAxis=1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=2
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=cacc_KennethSBoothMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=cacc_BrettARobertsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_DeductionForAmountsReportedUnderTheOptionAwardsColumnInTheSCTMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_IncreaseForFairValueOfOptionAwardsGrantedDuringYearThatRemainUnvestedAsOfYearEndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_IncreaseForFairValueOfOptionAwardsGrantedDuringYearThatVestedDuringYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_IncreasedeductionForChangeInFairValueFromPriorYearEndToCurrentYearEndOfOptionAwardsGrantedPriorToYearThatWereOutstandingAndUnvestedAsOfYearEndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_IncreasedeductionForChangeInFairValueFromPriorYearEndToVestingDateOfOptionAwardsGrantedPriorToYearThatVestedDuringYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_DeductionForAmountsReportedUnderTheStockAwardsColumnInTheSCTMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_IncreaseForFairValueOfStockAwardsGrantedDuringYearThatRemainUnvestedAsOfYearEndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_IncreasedeductionForChangeInFairValueFromPriorYearEndToCurrentYearEndOfStockAwardsGrantedPriorToYearThatWereOutstandingAndUnvestedAsOfYearEndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_IncreasedeductionForChangeInFairValueFromPriorYearEndToVestingDateOfStockAwardsGrantedPriorToYearThatVestedDuringYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=cacc_DeductionOfFairValueOfStockAwardsGrantedPriorToYearThatWereForfeitedDuringYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |