ORLANDO, Fla. — SeaWorld Entertainment will permanently lay off some of its employees who have been furloughed for months.

The company revealed the decision Friday in a Security and Exchange Commission filing.

In the filing, SeaWorld said it would change the status of some park and corporate employees from furloughed to a "permanent layoff" because of the "unforeseeable impacts" the COVID-19 pandemic has had on its business.

SeaWorld, which operates parks in Florida, Texas, and California, didn't say how many workers or which parks would be affected by the layoffs.

“We deeply appreciate the hard work and dedication of our Ambassadors to our company’s shared mission, values, and goals,” SeaWorld said in a statement sent to Spectrum News. “Over our 60-year history, our parks have inspired millions of guests to love, protect and care for our planet’s animals and their habitats. We are sorry to have to part ways with any team members in this difficult moment, but their abiding commitment to our guests, fellow Ambassadors and animals is recognized and made a lasting impact.”

SeaWorld shut down its parks in mid-March in response to the pandemic. In the weeks that followed, it furloughed 95 percent of its staff. In June, SeaWorld was able to reopen its parks in Orlando and Tampa in a limited capacity, bringing back many workers, but some still remained on an unpaid furlough.

In the company's most recent earnings, SeaWorld reported a net loss of $131 million during the months the parks were closed. This latest round of layoffs comes as the company tried to recover from revenue and attendance losses.