The Dallas Mavericks are a professional basketball team based in Dallas, Texas, that competes in the National Basketball Association (NBA) as a member of the Southwest Division of the Western Conference. The team was founded in 1980 and struggled in their first seasons in the NBA, but they posted their first winning season and gained a playoff berth in their fourth year, behind young stars Mark Aguirre, Derek Harper, and Rolando Blackman. The Mavericks' turnaround began with the arrival of point guard Steve Nash and forward Dirk Nowitzki before the 1998-99 season. In 2000, Internet entrepreneur Mark Cuban purchased the franchise and initiated a new era of free spending for the Mavericks. Cuban upgraded the team's facilities and made Dallas an attractive location for free agents for the first time in years. The Mavericks were routinely one of the top teams in the Western Conference in the first decade of the 21st century, and they won their first NBA championship in 2011. The team plays its home games at the American Airlines Center, which it shares with the National Hockey League's Dallas Stars.