If you click over any stock's "Chart" link, here on the Y-F Quote site, and look below the bar chart that indicates daily volume, you will see a history of said stock's splits.
Furthermore, depending on the term of the chart you are looking at (clicking on the Chart link automatically brings up the 1-year chart), the effective date of said split(s), if any, appears as a small black triangle on the price-chart's track above the volume's bar-chart.
In the case of CXW, it indicates that a 2:1 split became effective last July 9th. Note the triangle on the pricing chart's track on that date.
Knowing the above, you won't have to ask a stock's message-board for split information. Y-F provides it on its charts.