Specific terms of the deal were unknown.
The Detroit Lions have been on the lookout for a cover safety to help improve a secondary that allowed 13 plays of 40-plus yards in last season, second most in the NFL.
The former Texan is considered one of the top young safeties in the league and an ascending four-year starter.
A cornerback his first two seasons after the Texans drafted him in the fourth round out of New Mexico, Quin was moved to safety in 2011 and has flourished ever since.
He's started every game the last three seasons with 246 tackles and five interceptions. He’s a player who can man up in the slot and cover some of the league’s best tight ends and also take away the deep portion of the field.
Ideally, the Lions would like to pair Quin with