PRTD Timeline for PR Renewal outside Canada

Hi Folks,

My Canadian PR has been expired while I was outside Canada and I want to apply for its renewal and it that case I need to apply for PRTD. **Does anyone know how much time does it take to get the PRTD and once it is received how much time do I get for re-entry (Validity of PRTD)? Also how can I apply for a Multiple Entry PRTD? Any specific requirements for that? And the validity for the multiple entry PRTD would be the same as the standard PRTD for the first entry?

Would really appreciate if anyone can answer my queries.