BOISE, Idaho (AP) — The nation's largest private prison company is asking a judge to seal documents in a lawsuit brought by inmates at a Corrections Corporation of America-managed prison in Idaho.

Attorneys for CCA filed the motion for a protective order earlier this month in Boise's U.S. District Court, contending that the case involves information that must be kept secret to maintain the security of the Idaho Correctional Center and the safety of inmates and officers.

CCA says the seal should include items related to CCA policies; personal identifying information of employees; inmates' criminal and medical information and anything connected to an investigation of an attack by one group of inmates on another group. The eight inmates who were attacked sued last year, contending the violence happened because of chronic understaffing and mismanagement.