Gain/(Loss) per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	35 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013
Gain/(Loss) per Share
Net gain/(loss) attributable to Prospect Global Resources Inc.	$ 1,534	$ (3,321)	$ (130,043)
Weighted average number of common shares outstanding - basic	75,232,000	39,489,000	39,197,000
Weighted average number of common shares outstanding - fully diluted	75,232,000	39,489,000	39,197,000
Gain/(loss) per share of common stock:
Basic and fully diluted gain (loss) per share of common stock (in dollars per share)	$ 0.02	$ (0.08)	$ (3.32)
Antidilutive potentially dilutive warrants and options which were not included in the computation of Income (Loss) Per Share (in shares)	74,924,593

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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+ Details