Key Inclusion Criteria  All Participants  Participant has provided informed consent before initiation of any study-specific activities/procedures Participants between 18 and 70 years of age Body mass index between 18 and 38 kg/m^2 Females of nonchildbearing potential defined as permanently sterile or postmenopausal  Participants with Normal Hepatic Function  In good health, determined by no clinically significant findings from medical history, physical examination, 12-lead ECG, vital signs measurements, and clinical laboratory evaluations  Participants with Hepatic Impairment  Child-Pugh B or C classification with clinical laboratory values and clinical examination findings Documented medical history of chronic liver disease  Key Exclusion Criteria  All Participants  Female participants with a positive pregnancy test at Screening or Check-in Male participants with a pregnant partner or partner planning to become pregnant who are unwilling to practice abstinence or use a condom for 7 days after dosing History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance Participant has received a dose of an investigational drug (new chemical entity) within the past 30 days or 5 half-lives, whichever is longer, prior to Check-in Use of any over-the-counter or prescription medications within 30 days or 5 half-lives (whichever is longer) All herbal medicines vitamins, and supplements consumed by the subject within the 30 days prior to enrollment Alcohol consumption from 48 hours prior to Check-in Positive test for illicit drugs, cotinine (tobacco or nicotine use), and/or alcohol use at Check-in Positive human immunodeficiency virus test at Screening  Participants with Normal Hepatic Function  Positive hepatitis B or hepatitis C panel at Screening. Subjects whose results are compatible with prior immunity (vaccination or prior infection) may be included Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > upper limit of normal (ULN) at Screening or Check-in Total bilirubin levels > ULN at Screening or Check-in A QT interval corrected for heart rate based on the Fridericia correction (QTcF) interval > 450 msec in male subjects or > 470 msec in female subjects or history/evidence of long QT syndrome at Screening or Check-in, confirmed by calculating the mean of the original value and 2 repeats  Participants with Hepatic Impairment  Values outside the normal range for liver function tests that are not consistent with their hepatic condition, as determined by the Investigator (or designee) A QTcF interval > 470 msec in male subjects or > 480 msec in female subjects at Screening or Check-in, confirmed by calculating the mean of the original value and 2 repeats Use of a new medication, or a change in dose, for the treatment, or worsening of, hepatic encephalopathy within 30 days prior to Check-in Presence of a portosystemic shunt Evidence of severe ascites