| Document and Entity Information | Aug. 05, 2021 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 5, 2021 |
| Entity Registrant Name | ALBANY INTERNATIONAL CORP. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 1-10026 |
| Entity Tax Identification Number | 14-0462060 |
| Entity Address, Address Line One | 216 Airport Drive |
| Entity Address, City or Town | Rochester |
| Entity Address, State or Province | NH |
| Entity Address, Postal Zip Code | 03867 |
| City Area Code | 603 |
| Local Phone Number | 330-5850 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000819793 |
| Common Class A [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Class A Common Stock (par value $0.001 per Share) |
| Trading Symbol | AIN |
| Security Exchange Name | NYSE |
| Common Class B [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Class B Common Stock (par value $0.001 per Share) |
| Trading Symbol | AIN |
| Security Exchange Name | NYSE |
