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Cover
Mar. 15, 2022
Cover [Abstract]  
Document Type 8-K
Document Period End Date Mar. 15, 2022
Entity Registrant Name NATURAL RESOURCE PARTNERS LP
Entity Incorporation, State or Country Code DE
Entity File Number 001-31465
Entity Tax Identification Number 35-2164875
Entity Address, Address Line One 1201 Louisiana St., Suite 3400
Entity Address, City or Town Houston,
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77002
City Area Code (713)
Local Phone Number 751-7507
Title of 12(b) Security Common Units representing limited partner interests
Trading Symbol NRP
Security Exchange Name NYSE
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0001171486