Genesis Healthcare Inc. — an operator of skilled nursing and assisted living facilities — and its subsidiaries have filed for Chapter 11 bankruptcy.

Affiliates of Genesis’ investor ReGen Healthcare, a private equity firm, have entered into a deal to acquire Genesis, according to bankruptcy court documents.

The company filed for relief Wednesday under Chapter 11 of the U.S. Bankruptcy Code in the U.S. Bankruptcy Court for the Northern District of Texas Dallas Division. In its filing with the court, Genesis said it owes between $1 billion and $10 billion in debts.