Original sentence: LA Fitness is a privately-owned American health club chain
Edited sentence: LA Fitness is a privately-owned American health club chain with over 180 clubs and over 1.5 million members across 16 US states and Canada as of 2008.The company is owned by private equity firms Madison Dearborn Partners Seidler Equity Partners and CIVC Partners.The company was formed in 1984 and is based in Irvine, California