HUF CTLR EXPERIENCED OPDEV WITH ZID.

Narrative

BMG (BLOOMINGTON; IN) TWR REQUESTED RELEASE ON A C340 OFF OF RWY 17; SBOUND. I GAVE RELEASE TO BMG; ACFT ASSIGNED ON COURSE AND 3000 FT; AS PER LOA. OUR AIRSPACE IN THE VICINITY OF BMG IS ONLY ABOUT 14 MI AROUND; TO 5000 FT. BMG IS ABOUT 40 MI FROM OUR ASR 8 SITE AND WE FREQUENTLY LOSE RADAR CONTACT WITH ACFT E AND S OF BMG. AFTER RELEASE; ACFT FIRST CALL WAS APPROX 8 MINS LATER. ACFT WAS ALREADY OUT OF MY AIRSPACE AND INTO NEXT SECTOR (ZID; NABB SECTOR) BY THAT TIME. ONE OF VARIOUS THINGS COULD HAVE HAPPENED: 1) ACFT DID NOT DEPART WITHIN 3 MINS OF RELEASE. IF SO; BMG TWR SHOULD HAVE UPDATED THE TIME AND RE-REQUESTED RELEASE. 2) BMG DID NOT XFER COMS PRIOR TO THE ACFT LEAVING THEIR AIRSPACE AND ENTERING OURS. IF SO; BMG TWR HAS PART OF THE RESPONSIBILITY. 3) ACFT DID NOT CHK ON WHEN SWITCHED (IF DONE IN A TIMELY FASHION). IF SO; PLTDEV. ON MY PART; I NEEDED TO BE MORE AWARE OF THE TIME THAT HAS PASSED AFTER I ISSUE A RELEASE; AND REACH OUT TO THE PLT OR CTLR FOR COMS. IN THE MIDDLE OF A BUSY SESSION; THIS GOT OVERLOOKED; WAITING FOR THE PLT TO CALL ME.