No, it doesn't let you attach back, it just keeps a command going after you've disconnected your session. But if you have good logging that might be good enough.

Nohup still attaches to the terminal's stdin/out/err. If the process is known to be non-interactive, redirecting to log files should be sufficient (tail -f to "reattach"). If it does expect interaction, creating a fifo file to redirect stdin from should work, but I've never tested it.