| Cover | Dec. 13, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 13, 2023 |
| Entity File Number | 811-05012 |
| Entity Registrant Name | Credit Suisse Asset Management Income Fund, Inc. |
| Entity Central Index Key | 0000810766 |
| Entity Tax Identification Number | 23-2451535 |
| Entity Incorporation, State or Country Code | MD |
| Entity Address, Address Line One | Eleven Madison Avenue |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10010 |
| City Area Code | 212 |
| Local Phone Number | 325-2000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value per share |
| Trading Symbol | CIK |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
