The couple initially separated in October 2012 because, a source told TMZ, "Kimberly is fed up with Dennis' cheating and wants out of the marriage. He's not a good husband."
The Quaids reunited in March, but they had already signed their divorce paperwork in Los Angeles, which couldn't be withdrawn without a judge's approval, which was granted this week, TMZ said.
The couple married in 2004 and have twins together.
This was not the couple's first attempt at a divorce. Kimberly filed paperwork for divorce in March 2012, but withdrew it two months later.