Benefit Plan	12 Months Ended
Dec. 31, 2024
Defined Contribution Plan [Abstract]
Benefit Plan	Benefit Plan Lexicon maintains a defined-contribution savings plan under Section 401(k) of the Internal Revenue Code. The plan covers substantially all full-time employees. Participating employees may defer a portion of their pretax earnings, up to the Internal Revenue Service annual contribution limit. The Company matches employee contributions according to a specified formula. The matching contributions totaled $2.3 million, $1.2 million and $0.7 million in the years ended December 31, 2024, 2023 and 2022, respectively. Prior to January 1, 2025, matching company contributions vested based on an employee’s years of service over a four-year period. As of January 1, 2025, the Company fully vested all company matching contributions and will vest future company matching contributions immediately.

Benefit Plan

12 Months Ended

Dec. 31, 2024

Defined Contribution Plan [Abstract]

Lexicon maintains a defined-contribution savings plan under Section 401(k) of the Internal Revenue Code. The plan covers substantially all full-time employees. Participating employees may defer a portion of their pretax earnings, up to the Internal Revenue Service annual contribution limit. The Company matches employee contributions according to a specified formula. The matching contributions totaled $2.3 million, $1.2 million and $0.7 million in the years ended December 31, 2024, 2023 and 2022, respectively. Prior to January 1, 2025, matching company contributions vested based on an employee’s years of service over a four-year period. As of January 1, 2025, the Company fully vested all company matching contributions and will vest future company matching contributions immediately.