| Cover Page Document | May 10, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 10, 2021 |
| Entity Registrant Name | ALTISOURCE PORTFOLIO SOLUTIONS S.A. |
| Entity Incorporation, State or Country Code | N4 |
| Entity File Number | 001-34354 |
| Entity Tax Identification Number | 98-0554932 |
| Entity Address, Address Line One | 40, avenue Monterey |
| Entity Address, Postal Zip Code | L-2163 |
| Entity Address, City or Town | Luxembourg |
| Entity Address, Country | LU |
| City Area Code | 352 |
| Local Phone Number | 2469 7900 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $1.00 par value |
| Trading Symbol | ASPS |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001462418 |
| Amendment Flag | false |
