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Quarterly Results (unaudited) - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Effect Of Fourth Quarter Events [Line Items]
Pre-tax impairment loss				$ 224,267	$ 220,265
Corporate, general and administrative expense				65,410	37,371	$ 41,205
Cost of good sold				1,119,552	1,066,673	1,047,764
Income tax expense (benefit)				$ (25,170)	$ 10,875	$ 15,330
Cares Act [Member]
Effect Of Fourth Quarter Events [Line Items]
Income tax expense (benefit)	$ 31,700
Business Development and Separation Costs [Member]
Effect Of Fourth Quarter Events [Line Items]
Corporate, general and administrative expense	6,500
Outage And Purchase Accounting Costs [Member]
Effect Of Fourth Quarter Events [Line Items]
Cost of good sold	6,800
Plant Expansion Costs [Member]
Effect Of Fourth Quarter Events [Line Items]
Cost of good sold	$ 3,000
Oil and Gas Proppants [Member]
Effect Of Fourth Quarter Events [Line Items]
Pre-tax impairment loss		$ 224,300	$ 220,300

X

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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