INTERNATIONAL DRIVING PERMIT

I understand that, whilst a UK IDP is valid for twelve months, Thailand only accepts an IDP for the first 90 days of a visitor’s stay.

To continue driving here, One is expected to take and pass a test so as to be granted a Thai driving licence, is my further understanding..

But if, after 89 days for example, a visitor leaves the kingdom and returns shortly thereafter to Thailand, would a fresh 90 day IDP validity period be afforded to him/her/zer (so as to avoid offending any “non-binary” readers)?

Conversely is, say, only one 90 day recognition of an IDP countenanced in a given period (12 months, for instance)?