iDEAL payment method does not support recurring payments directly. Stripe suggests to use SEPA Direct Debit for this instead.
At the moment, our plugin does not support SEPA Direct Debit. Last time I checked, it was in beta mode on Stripe. Now I can see it is no longer in beta.
We will discuss the possibility to add SEPA Direct Debit support to our plugin. Cannot provide any ETA on this at the moment though.