Discontinued Operations and Other Dispositions - Summary of Operating Results from Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net Earnings (Loss) from Discontinued Operations		$ 6,163		$ 5,278
Discontinued Operations, Disposed of by Sale \| Oil And Gas Proppants
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Revenue		14		1,045
Cost of Goods Sold		1,065		3,415
Gross Profit		(1,051)		(2,370)
Other Non-Operating Income		44		226
Gain on Sale of Discontinued Operations		9,230		9,230
Earnings (Loss) from Discontinued Operations		8,223		7,086
Income Tax (Expense) Benefit		(2,060)		(1,808)
Net Earnings (Loss) from Discontinued Operations		$ 6,163		$ 5,278

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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