What is the effective range of biosonar?

Can a creature with biosonar get an accurate read on *anything* within earshot, and to what degree does that reading deteriorate with distance?

I realize that there are many, many factors that go into answering this question, ranging from distance to surface, how shallow the water is, the water's temperature and whether it interfaces with water of a different temperature or salinity level, amount and intensity and frequency of background noise, etc, so it's not like there's going to be a single one-size-fits-all answer.

I've heard that a blue whale near the Cape of Good Hope could potentially, under the exact right conditions, hear the song of another blue whale off the coast of Argentina; does this mean said whales could potentially "see" each other with echolocation?