which polarizing filter to buy? Slim or regular, hoya or any other?

I have recently purchased nikon d7200 with 18- 140 mm lens having f/ 3.5- 5.6 .but I am confused whether to buy a slim or regular lens which will be appropriate for my lens. How will the effect of HD filter be as compared to the normal one.
Will it be OK to buy a 77m hoya filter for my lens? What is the difference between CPL and CIR-PL? PLEASE ANSWER MY Q.