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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
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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] T
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 |  |  |  |  |  |  |

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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the four fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the second fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the third fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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- Definition Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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- Definition Describes the nature of an unconditional purchase obligation that is not recognized as a liability on the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing after the fifth fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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