Demi Moore pays tribute to ex Bruce Willis as they celebrate Father's Day at Idaho ranch

Demi Moore has paid tribute to her ex-husband Bruce Willis in a Father's Day Instagram post.

Moore wrote: "Your kids are so lucky to have you" under a picture of the family gathered together around a table with plates of cake.

Willis and Moore were married from 1987 until 2000 and have three daughters together, Rumer, 31, Scout, 28, and Tallulah, 26.

They remain on such good terms that the former couple has even been isolating together in Idaho, joined by Willis' wife of eleven years, Emma Heming Willis, and their two daughters, Evelyn and Mabel.

The blended family has been at the ranch since March, though Heming was initially delayed in joining them as her daughter waited for test results in Los Angeles.

Heming also celebrated her 42nd birthday last Thursday, where she was pictured posing with the family, including Demi and her children.

Heming previously opened up to parenting site The New Potato about life with her husband in LA: "My husband has a few great sayings. We call them Bruce-isms. One that really has resonated with me over time has been 'Don’t worry ‘bout a thing.' I’m a worrywart by nature, but what it comes down to is worrying doesn’t change the outcome. I’ve taken a lot off my plate with that advice."