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Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Mar. 06, 2020
Apr. 18, 2019
Significant Accounting Policies [Line Items]            
Allowance for doubtful accounts $ 9,900 $ 12,400 $ 9,900      
Notes receivable, total   9,800        
Notes receivable, current   $ 700        
Notes receivable interest rate   4.10%        
Notes receivable, maturity description   Remaining unpaid amounts, plus accrued interest, mature in fiscal 2025 and 2026.        
Depreciable assets   $ 109,500 118,200 $ 109,600    
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   $ 2,500 4,300 $ 4,400    
Amortization expense, expected, for fiscal year 2021   4,300        
Amortization expense, expected, for fiscal year 2022   4,200        
Amortization expense, expected, for fiscal year 2023   4,200        
Amortization expense, expected, for fiscal year 2024   4,200        
Amortization expense, expected, for fiscal year 2025   4,200        
Net book value of long-lived assets 208,400   208,400      
Impairment loss   216,777 211,264      
Adjusted carrying value of impaired assets 72,700   $ 72,700      
Liabilities related to capitalized operating leases and asset retirement obligation, net   $ 17,900        
Number of additional shares authorized to be repurchased           10,000,000
Outstanding authorization shares           10,724,758
Repurchase of shares   3,574,109 3,309,670 627,722    
Shares repurchased average price   $ 87.82 $ 82.18 $ 97.30    
Stock repurchase remaining number of shares authorized to be repurchased   7,305,649        
Cost of Goods Sold   $ 1,119,552 $ 1,066,673 $ 1,047,764    
Accumulated other comprehensive loss 3,316 3,560 3,316      
Net of income taxes for accumulated other comprehensive loss   1,100        
Maintenance and repair expenses   $ 127,000 $ 116,300 $ 107,300    
Stock options excluded from computation of diluted earnings per share   475,082 461,575 98,362    
Stock options, average exercise price per share   $ 95.46 $ 90.32 $ 98.75    
Operating lease right-of-use asset   $ 30,530     $ 3,858  
Operating lease liabilities   60,016        
Accounting Standards Update 2016-02 [Member]            
Significant Accounting Policies [Line Items]            
Operating lease right-of-use asset   66,700        
Operating lease liabilities   71,100        
Freight [Member]            
Significant Accounting Policies [Line Items]            
Cost of Goods Sold   $ 168,100 $ 169,600 $ 158,300    
Minimum [Member]            
Significant Accounting Policies [Line Items]            
Long-term supply agreements maturity year   2020        
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   65 days        
Operating Facilities [Member]            
Significant Accounting Policies [Line Items]            
Impairment loss   $ 164,449 151,910      
Utica, Illinois, Facility [Member] | Operating Facilities [Member]            
Significant Accounting Policies [Line Items]            
Net book value of long-lived assets 135,700   135,700      
New Auburn, Wisconsin Facility [Member]            
Significant Accounting Policies [Line Items]            
Impairment loss     174,100      
Corpus Christi, Texas Facility [Member]            
Significant Accounting Policies [Line Items]            
Impairment loss     37,200      
Oil and Gas Proppants [Member]            
Significant Accounting Policies [Line Items]            
Impairment losses to property, plant, and equipment   $ 187,600 $ 211,300      
Goodwill, impairment loss $ 6,800          
Oil and Gas Proppants [Member] | Discount Rate [Member] | Discounted Cash Flow Model [Member]            
Significant Accounting Policies [Line Items]            
Estimated discount rate for goodwill impairment 11.00%   11.00%