Output impedance of a differential line receiver
The output drive capability is defined in a few places in the datasheet, but not guaranteed except at 2K load. The below graph is based on +/-18V supplies. 



As you can see you can get 20mA easily out of it, with 15V swing. With a 100R load, the output capability would be a couple of volts or so safely. 

I don't see why you'd want to follow this part with another such as the OPA134 that has similar or less current capability. 



Keep in mind that the closed-loop output impedance on both amplifiers will appear very low, up until the point where you hit the current limit (or when thermal protection kicks in).