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Organization and Nature of Business (Details)	9 Months Ended
	Sep. 30, 2021	Jan. 08, 2018
Miski Mayo Joint Venture
Schedule of Equity Method Investments [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage		75.00%
MWSPC Joint Venture
Schedule of Equity Method Investments [Line Items]
Mosaic's ownership percentage	25.00%
Percent of joint venture production Mosaic expects to market	25.00%

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Percent of joint venture production Mosaic expects to market

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- Definition

Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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