Basically, the company had to pay for its own buyout when private equity firms KKL, Vornado, and Bain bought the company for $6.6 billion, mostly with loans.
Because the company then had to pay off those extreme loans, they were forced to sell off their assets and property, which they leased back from the very private equity firms that now owned them.
The same thing happened more recently with Red Lobster and JoAnn Fabrics.
We should note that Toys R Us was also struggling at the time, although they would have had a better chance of success by not having 300-400M a year in debt payments to make; they could have used that to improve customer service and stuff.
I’m not defending the LBO here, just adding a little context.