There may be some changes in the way you do the things you do but they should be minor, if any.
A common misconception is that once there is documentation, there is no easy way to change the documentation if it is wrong or ineffective or if it should be changed for another reason. This is NOT true. Documentation will be easily and quickly changed when necessary.
The idea is NOT to simply put in tons of ‘written procedures’ for people to follow. No procedure will be written detailing how to go to the bathroom or how to go to lunch, for example. It is difficult to quantify ‘adequate’, but the idea is to provide documentation which is ‘adequate’ to ensure quality and consistency of processes.