Idaho Code § 18-803: Arson in the second degree — Burning of a structure — Penalties.

Any person who willfully and unlawfully, by fire or explosion, damages any structure, whether the property of the actor or another, not included or described in the preceding section, is guilty of arson in the second degree, and upon conviction thereof shall be sentenced to the custody of the department of correction for not more than fifteen (15) years or fined not more than seventy-five thousand dollars ($75,000) or both.