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Net Sales and Operating Loss of CRS Proppants (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Revenues	$ 328,988	$ 284,808	$ 613,951	$ 551,059
Operating Loss	56,546	$ 87,995	125,908	$ 154,875
CRS Proppants [Member]
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Revenues	12,455		31,224
Operating Loss	$ (41,257)		$ (46,066)

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- Definition

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1(a))



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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