Study to Evaluate Safety, Tolerability, and Efficacy of GS-0976 in Adults With Nonalcoholic Steatohepatitis

Key Inclusion Criteria: * Meets all of the following conditions: * A clinical diagnosis of nonalcoholic fatty liver disease (NAFLD) * Screening magnetic resonance imaging - proton density fat fraction (MRI-PDFF) with ≥ 8% steatosis * Screening magnetic resonance elastography (MRE) with liver stiffness ≥ 2.5 kPa * OR * A historical liver biopsy consistent with NASH and non-cirrhotic fibrosis * Platelet count ≥ 100,000/mm\^3 * Creatinine Clearance (CLcr ) as calculated by the Cockcroft-Gault equation ≥ 60 ml/min Key Exclusion Criteria: * Pregnant or lactating females * Alanine aminotransferase (ALT) \> 5 x upper limit of the normal range (ULN) * Other causes of liver disease including autoimmune, viral, and alcoholic liver disease * Cirrhosis of the liver * Prior history of decompensated liver disease, including ascites, hepatic encephalopathy or variceal bleeding * Body mass index (BMI) \< 18 kg/m\^2 * International normalized ratio (INR) \> 1.2 unless on anticoagulant therapy * Total bilirubin \> 1 x ULN, except with diagnosis of Gilbert's syndrome NOTE: Other protocol defined Inclusion/ Exclusion criteria may apply.