XML 38 R29.htm IDEA: XBRL DOCUMENT
v3.21.2

Reinsurance | 9 Months Ended
--- | ---
Sep. 30, 2021
Insurance [Abstract] |
Summary of Reinsurance Activity | A summary of reinsurance activity is as follows:
(In millions) | For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Net assumed written premiums | $ | 12.1 |  |  | $ | 14.7 |  |  | $ | 45.9 |  |  | $ | 49.3 |
Net premiums earned | 15.4 |  |  | 15.1 |  |  | 45.6 |  |  | 42.2 |
Provision for claims | 10.0 |  |  | 10.7 |  |  | 29.3 |  |  | 28.8 |
Amortization of capitalized acquisition costs | 0.2 |  |  | 0.4 |  |  | 1.0 |  |  | 1.0 |
Schedule of Trust Assets and Reinsurance Liabilities | The trust assets and related reinsurance liabilities are as follows:
(In millions) |  |  | As of
| Balance Sheet location |  | September 30, 2021 |  | December 31, 2020
Trust assets | Restricted cash and cash equivalents |  | $ | 0.1 |  |  | $ | 0.7 |
Trust assets | Restricted securities available for sale |  | 67.1 |  |  | 66.1 |
Unearned premium | Accounts payable and accrued liabilities |  | 48.8 |  |  | 48.5 |
Claims reserve (1) | Accounts payable and accrued liabilities |  | 2.5 |  |  | 2.3 |
(1) The claims reserve represents our liability for incurred-but-not-reported claims and is estimated based on historical claims experience.

X
- Definition The tabular disclosure pertaining to the existence, magnitude and information about insurance that has been ceded to or assumed from another insurance company, including the methodologies and assumptions used in determining recorded amounts. + References No definition available. + Details
Name: | cacc_ScheduleOfReinsuranceActivityTableTextBlock
Namespace Prefix: | cacc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Trust Assets And Reinsurance Liabilities Table Text Block + References No definition available. + Details
Name: | cacc_ScheduleOfTrustAssetsAndReinsuranceLiabilitiesTableTextBlock
Namespace Prefix: | cacc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InsuranceAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration