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Commitments and Contingencies - Additional Information (Detail) (USD $)
 1 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Apr. 30, 2013
Dec. 31, 2013
MMBTU
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Gathering Agreement [Member]
Dec. 31, 2013
Gathering Agreement [Member]
Demand Charge [Member]
Jun. 30, 2013
Amended Bayer Agreement [Member]
Dec. 31, 2013
Amended Bayer Agreement [Member]
Dec. 31, 2013
Pryor Chemical Company[Member]
Cases
Apr. 19, 2013
Pryor Chemical Company[Member]
Cases
Dec. 31, 2013
Koch Nitrogen [Member]
Dec. 31, 2013
Chemical Business [Member]
Plant
Dec. 31, 2013
Hallowell Facility [Member]
Subsidiary
Dec. 31, 2013
Climate Control Business [Member]
Dec. 31, 2013
Insurance Claims [Member]
Dec. 31, 2013
El Dorado Facility [Member]
Nitric Acid Plant [Member]
Dec. 31, 2013
El Dorado Facility [Member]
Ammonia Plant [Member]
Dec. 31, 2013
El Dorado Facility [Member]
Minimum [Member]
Ammonia Plant [Member]
Dec. 31, 2013
El Dorado Facility [Member]
Maximum [Member]
Ammonia Plant [Member]
Apr. 30, 2013
Orica International [Member]
Amended Ammonium Nitrate Supply Agreement [Member]
Dec. 31, 2013
Orica International [Member]
Amended Ammonium Nitrate Supply Agreement [Member]
Dec. 31, 2013
Orica International [Member]
Amended Ammonium Nitrate Supply Agreement [Member]
Minimum [Member]
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Commitments And Contingencies [Line Items]                                            
Expenses incurred in operating lease agreements   $ 6,401,000 $ 6,830,000 $ 7,773,000                                    
Agreement term             7 years                              
Anhydrous ammonia purchase agreement maturity date   Dec. 31, 2053           Dec. 31, 2015                            
Notice of termination                                       Required notice of termination from two years to one year    
Current purchase agreement quantity with Orica International                                           240,000
Ammonium nitrate supply agreement maturity date                                         Dec. 2014  
Required period for notice of termination                 3 months   6 months                      
Working interest in natural gas properties   12.00%                                        
Agreement term         December 2026                                  
Agreement description         Contractually agreed to deliver a minimum daily quantity of natural gas to a certain gathering and pipeline system.This gathering agreement effectively requires a daily minimum demand charge.                                  
Annual minimum demand charges, Year One           1,800,000                                
Annual minimum demand charges, Year Two           1,800,000                                
Annual minimum demand charges, Year Three           1,800,000                                
Annual minimum demand charges, Year Four           1,800,000                                
Annual minimum demand charges, Year Five           1,800,000                                
Annual minimum demand charges, Thereafter           7,500,000                                
Annual minimum demand charges, Total obligation           16,500,000                                
Natural gas purchase commitments   1,600,000                                        
Natural gas purchase commitments weighted average cost, per unit   3.47                                        
Natural gas purchase commitments weighted average cost, amount   5,600,000                                        
Natural gas purchase commitments weighted average market value per unit   4.20                                        
Natural gas purchase commitments weighted average market value, amount   6,800,000                                        
Outstanding letters of credit   2,700,000                                        
Customer advances and deposits   5,500,000                                        
Month purchase commitment period ends for natural gas   May 2014                                        
Estimated project cost to construct plant                               120,000,000            
Project costs capitalized                               48,000,000 36,000,000          
Estimated cost for project ranges                                   250,000,000 300,000,000      
Indemnify the sureties for payments   9,900,000                                        
Maximum amount of securities can be sold under shelf registration statement   200,000,000                                        
Payments under employment and severance agreements   14,300,000                                        
Accrued liabilities for environmental matters   1,234,000                                        
Penalty related to discharge water permit   100,000                                        
Estimated share of the annual operating costs of pipeline, minimum   100,000                                        
Estimated share of the annual operating costs of pipeline, maximum   150,000                                        
Number of nitric acid affected plants                       8                    
Plants compliant with Clean Air Act                       2                    
Minimum range of estimated capital cost to meet Clean Air Act emission rates                       2,000,000                    
Maximum range of estimated capital cost to meet Clean Air Act emission rates                       3,000,000                    
Plants requiring capital investment to achieve Clean Air Act compliance                       6                    
Reforestation mitigation estimated project costs                       150,000                    
Amount of civil penalty to be paid                       725,000                    
Amount of civil penalty                 100,000                          
Number of alleged non-compliance issues                   14                        
Number of alleged violation resolved through a global settlement                 3                          
Number of alleged violations resolved through civil penalty payment                 11                          
Number of subsidiaries under Chemical Business that sold their operating assets                         2                  
Insurance coverage of general liability risks 100,000,000 100,000,000                                        
Product liability deductible per claim 250,000                         250,000                
Professional fees   200,000                                        
Accrued general liability insurance claims                             $ 335,000