0001000753 2020-05-22 2020-05-22 false --12-31 0001000753 8-K 2020-05-22 Insperity, Inc. DE 1-13998 76-0479645 19001 Crescent Springs Drive Kingwood TX 77339 281 358-8986 Common Stock, $.01 par value per share NSP NYSE false false false false false 2020-05-22