It means that GP was paid their salary for the non-compete time. In finance it is common for total compensation to be the salary plus a "bonus" of 100% of salary in normal years + any performance bonus. This means that if you had a non-compete in the finance industry and you left your employer for a competitor, then your previous employer could pay you your salary (meaning 50% of your usual compensation) to not work for that competitor for a year.

(These numbers are typical of finance industry compensation and non-compete terms.)