TMZ broke the story, Mariah was trying for more than a year to get Nick off the dime and sign divorce papers. She's wanted to get married to billionaire James Packer for months, but the divorce made it a non-starter.
We've learned at the end of the summer, right before Mariah and James boarded a yacht in Greece, Nick signed the docs and the divorce was a done deal, clearing the way for a wedding day. That plan was shattered onboard the boat, when James allegedly had a bad incident with Mariah's assistant.
As for the divorce, we're told Nick and Mariah agreed on joint custody of their 5-year-old twins. Neither gets child support.
We're also told the prenup made a property settlement easy ... she gets what she earned during the marriage, and he keeps what he earned.