Bibi said these were newly acquired documents. He did not say that Israeli spies picked them up in Teheran.
I suspect that the GCC infiltrators in Iran acquired them and they may even have gotten them from an Iranian who has turned against the regime. The GCC got them out of the country into Saudi. The Saudis examined them, informed the USA about the contents and so Pompeo went to Saudi to get the documents, then went to Israel to hand them over to Bibi.
Now Bibi takes care of the dirty work, playing bad cop. Trump is going to play a kind of good cop role. He has already positioned himself as good cop in relation to the PEOPLE OF IRAN, but not to the mullahs. This is not over yet. I do not believe that the Iran deal will continue in any form.
Instead, we will see an overthrow of the mullahs, the people will form a new government, and both GCC countries and Israel will offer help and support to Iran in resolving the damage that the mullahs did to the country. Trump will join Bibi in praising and supporting the new people's government of Iran which will declare full denuclearisation as quickly as practically possible.
Fact is that having nuclear weapons only damages Iran. It does not protect Iran in any way.