Represents information pertaining to IPNM HB solution mine. IPNM HB Solution Mine [Member] IPNM HB Solution Mine Represents information pertaining to IPNM east mine. IPNM East Mine [Member] IPNM East Mine Represents information pertaining to IIPNM west mine. IPNM West Mine [Member] IPNM West Mine Represents information pertaining to Wendover mine. Wendover Mine [Member] Wendover Mine UNITED STATES U.S Represents information pertaining to Federal government. Federal Government [Member] Federal Government