| Document And Entity Information | May 06, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Air Transport Services Group, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | May 06, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 000-50368 |
| Entity, Tax Identification Number | 26-1631624 |
| Entity, Address, Address Line One | 145 Hunter Drive |
| Entity, Address, City or Town | Wilmington |
| Entity, Address, State or Province | OH |
| Entity, Address, Postal Zip Code | 45177 |
| City Area Code | 937 |
| Local Phone Number | 382-5591 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | ATSG |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0000894081 |
