If you are an active member, you will continue having access to tracks, training videos, and documents for the life of your membership.
When a subscription payment is processed, you have until that same date the next month to use all of the training content and documents. When that date re-occurs the next month, your credit card will be auto-drafted the subscription amount if your membership is still active at that point, thus granting you another month of access to the training and documents.
For example, if your subscription payment goes through on May 5th, you will have until June 5th to use the training and documents. Then on June 5th, your card will be auto-drafted the subscription amount if your membership is still active, granting you access to the training and documents until July 5th when the process is repeated again.