A document deskewing module is provided for a self-service bunch document depositing terminal. The document deskewing module comprises a set of sensors arranged to detect when a document transported along a document transport path from a mixed bunch of documents including documents of a first type and documents of a second type which is different from the first type is deskewed, a first set of drive rollers in the form of hard drive rollers disposed along the document transport path, a first set of idler rollers moveable towards and away from the hard drive rollers, a second set of drive rollers in the form of soft drive rollers disposed along the document transport path, a second set of idler rollers moveable towards and away from the soft drive rollers, and a controller arranged to control operation of the first and second sets of idler rollers in response to a number of signals from the set of sensors such that either only the first set of idlers are interacting with the hard drive rollers or only the second set of idlers is interacting with the soft drive rollers at any one time to deskew either a document of the first type or a document of the second type which is different from the first type.