The amount of information new hires learn in the first days and weeks can be overwhelming. Onboarding throws a lot at workers in what is essentially a one-and-done process. If they didn't retain the information the first time, that's often their problem to solve. Unfortunately, that antiquated way of thinking can have disastrous results for both employers and employees.

More companies are now starting to implement everboarding, which takes onboarding from a one-time event to a continuous journey. Even after the first 90 days of employment, learning doesn't stop.

Everboarding accounts both for learning being an ongoing process and the evolving state of the workplace. Instead of focusing on an employee's ability to pass a quiz, everboarding homes in on knowledge retention. And everboarding isn't one-size-fits-all; it can be unique to an organization and its learners.

According to LinkedIn, 94 percent of employees say they would stay with a company longer if their employer invested more in L&D. Employees retaining knowledge through everboarding could mean companies retaining more employees.