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Summary of Significant Accounting Policies - Additional Information (Detail)
 1 Months Ended 12 Months Ended
May 11, 2016
USD ($)
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Derivative
Dec. 31, 2014
USD ($)
Derivative
Dec. 31, 2013
USD ($)
Summary Of Significant Accounting Policies [Line Items]          
Natural gas property, acquisition cost incurred     $ 0    
Non-cash impairment charges     43,188,000    
Carrying value of capitalized software     12,800,000 $ 11,700,000  
Capitalized software, net of accumulated amortization     1,800,000 400,000  
Interest cost capitalized     30,600,000 14,100,000 $ 4,000,000
Goodwill     1,600,000 1,600,000  
Impairments of goodwill     0 $ 0 0
Insurance coverage of general liability and auto liability risks     100,000,000    
Insurance policy covering pollution liability     $ 50,000,000    
Tax benefit recognized     Greater than 50%    
Number of derivatives held with fair value eligible for offset | Derivative     0 0  
Debt issuance costs     $ 6,400,000    
Chemical [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Non-cash impairment charges     43,200,000    
Chemical [Member] | Pryor Facility [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Non-cash impairment charges     3,500,000    
Marcellus Shale Region [Member] | Chemical [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Non-cash impairment charges   $ 39,700,000 39,700,000    
Fair value of natural gas properties   $ 22,500,000 22,500,000    
Natural Gas Development Costs [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Natural gas, development cost incurred     $ 6,200,000    
Capitalized Software [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Estimated useful lives of the software     8 years    
Interest cost capitalized     $ 300,000 $ 500,000 $ 100,000
Amortization expense     1,000,000 $ 300,000  
Estimated amortization related to capitalized software, 2016     1,600,000    
Estimated amortization related to capitalized software, 2017     1,600,000    
Estimated amortization related to capitalized software, 2018     1,600,000    
Estimated amortization related to capitalized software, 2019     1,600,000    
Estimated amortization related to capitalized software, 2020     $ 1,600,000    
Short-Term Investments [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Original maturity period     26 weeks    
Subsequent Event [Member] | Climate Control Group [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Outstanding shares of stock to be sold under Stock Purchase Agreement $ 364,000,000        
Minimum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Ownership interest in equity method investment     20.00%    
Maximum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Ownership interest in equity method investment     50.00%