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Acquisitions - Additional Information (Detail)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2017
USD ($)
Jul. 10, 2015
USD ($)
T
Jan. 31, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Mar. 31, 2014
USD ($)
Nov. 14, 2014
USD ($)
Business Acquisition [Line Items]                      
Intangible Assets       $ 56,200       $ 56,200      
Goodwill       133,885     $ 132,515 133,885 $ 132,515    
Non cash charges and inventory write-offs       4,100              
Impairment of Intangible Assets       6,600   $ 28,400   34,999      
Reduction of prepaid sand liability       10,700       10,658      
Operating Loss               273,028 302,301 $ 224,638  
Direct acquisition cost             $ 4,100        
Skyway Plant [Member]                      
Business Acquisition [Line Items]                      
Ground granulated blast furnace slag purchased | T   600,000                  
Business acquisition purchase price   $ 29,900                  
Business acquisition, refund receivable   2,500                  
Business acquisition, refund received     $ 1,500                
Accounts and notes receivable   1,900                  
Inventories   2,300                  
In-process capital expenditures   24,600                  
Intangible Assets   1,200                  
Goodwill   1,400                  
Other assets   $ 1,000                  
Skyway Plant [Member] | Scenario Forecast [Member]                      
Business Acquisition [Line Items]                      
Business acquisition, refund received $ 1,000                    
CRS Proppants [Member]                      
Business Acquisition [Line Items]                      
Business acquisition purchase price               236,100      
Accounts and notes receivable                     $ 14,640
Inventories                     9,627
In-process capital expenditures                     197,238
Intangible Assets                     $ 56,200
Increase in deferred tax liabilities         $ 3,000            
Increase in taxes payable         1,500            
Increase in property and equipment         $ 4,500            
Depreciation and amortization               20,700 6,400    
Non cash charges and inventory write-offs               11,500      
Impairment of Intangible Assets               34,999      
Reduction of prepaid sand liability               10,700      
Operating Loss               41,137 5,002    
Direct acquisition cost                 1,100    
CRS Proppants [Member] | Fair Value Adjustment to Inventory                      
Business Acquisition [Line Items]                      
Operating Loss               500 $ 1,500    
CRS Proppants [Member] | In-Process Capital Expenditures [Member]                      
Business Acquisition [Line Items]                      
In-process capital expenditures       $ 8,900       $ 8,900