X0306 4 2018-05-04 false 0000844965 TETRA TECHNOLOGIES INC TTI 0001159051 SERRANO ELIJIO V 24955 INTERSTATE 45 NORTH THE WOODLANDS TX 77380 false true false false Sr. Vice President & CFO Common Stock 2018-05-04 4 F false 1278.00 4.19 D 589159.00 D Reflects shares surrendered to the Issuer to satisfy tax withholding obligations upon the vesting of restricted stock granted on May 4, 2015. Kimberly M. O'Brien, attorney in fact 2018-05-08