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Significant Accounting Policies - Additional Information (Detail) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Sep. 18, 2020 | Sep. 18, 2020 | Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020 | May 17, 2022
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Purchase price of separate operating segment |  |  |  |  | $ 699,361,000 |
Gain on Sale of Businesses |  |  |  | 51,973,000 |  |
Allowance for doubtful accounts |  |  | 6,700,000 | 8,100,000 |  |
Bad debt expense |  |  | 300,000 | 700,000 | 3,400 |
Write off account receivable |  |  | 1,600,000 | 1,200,000 | 300,000 |
Notes receivable, total |  |  | 8,400,000 |  |  |
Notes receivable, current |  |  | $ 0 |  |  |
Notes receivable interest rate |  |  | 3.50% |  |  |
Notes receivable, maturity description |  |  | Remaining unpaid amounts, plus accrued interest, mature in fiscal 2025 |  |  |
Depreciable assets |  |  | $ 122,400,000 | 120,700,000 | 109,500,000 |
Basis of valuation |  |  | Property, Plant, and Equipment are stated at cost. |  |  |
Depreciation method |  |  | straight-line basis over the estimated useful lives |  |  |
Goodwill impairment more likely than not a likelihood as greater percentage of fair value of reportable unit exceeds its carrying value |  |  | 50.00% |  |  |
Intangible Assets, Amortization Expense |  |  | $ 4,400,000 | 4,500,000 | 2,500,000 |
Impairment Losses |  |  |  |  | $ 224,267,000 |
Amortization expense, expected, for fiscal year 2026 |  |  | 4,400,000 |  |  |
Amortization expense, expected, for fiscal year 2027 |  |  | $ 4,300,000 |  |  |
Number of additional shares authorized to be repurchased |  |  |  |  |  | 7,500,000
Repurchase of shares |  |  | 3,982,657 |  | 3,574,109 |
Shares repurchased average price |  |  | $ 148.08 |  | $ 87.82 |
Stock repurchase remaining number of shares authorized to be repurchased |  |  |  |  |  | 10,822,992
Freight expense |  |  | $ 1,341,908,000 | 1,214,287,000 | $ 1,061,367,000 |
Accumulated other comprehensive loss |  |  | 3,175,000 | 3,440,000 |  |
Net of income taxes for accumulated other comprehensive loss |  |  | 1,000,000.0 |  |  |
Maintenance and repair expenses |  |  | $ 147,800,000 | $ 137,200,000 | $ 127,000,000.0 |
Stock options excluded from computation of diluted earnings per share |  |  | 6,053 | 569,431 | 475,082 |
Stock options, average exercise price per share |  |  | $ 139.80 | $ 89.11 | $ 95.46 |
Freight [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Freight expense |  |  | $ 199,100,000 | $ 177,500,000 | $ 168,100,000 |
Minimum [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Long-term supply agreements maturity year |  |  | 2023 |  |  |
Revenue from contract with customer collection terms |  |  | 30 days |  |  |
Maximum [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Long-term supply agreements maturity year |  |  | 2025 |  |  |
Revenue from contract with customer collection terms |  |  | 75 days |  |  |
Oil and Gas Proppants [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Purchase price of separate operating segment |  | $ 2,000,000.0 |  |  |  |
Impairment Losses |  |  |  |  | $ 224,300,000 |
Discontinued Operations, Disposed of by Sale | Oil and Gas Proppants [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Gain on Sale of Businesses | $ 9,200,000 |  |  |  |  |

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