Does using Thrill of the Hunt detach equipment on the unit?

Yes, using Thrill of the Hunt will detach any equipment attached to the unit.

According to the RiftJudge FAQ #9687, when a unit is banished by Thrill of the Hunt, it leaves the board (a board zone) and enters Banishment (a non-board zone). Because equipment is attached to a "Top-Most Card" (the unit) while on the board, the link is broken when that unit leaves the board. When the unit is subsequently played back to a battlefield, it enters as a new object without the previously attached equipment.