Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2022
Accounting Policies [Abstract]
Basis of Consolidation	Basis of Consolidation – LSB and its subsidiaries (the “Company,” “we,” “us,” or “our”) are consolidated in the accompanying condensed consolidated financial statements. LSB is a holding company with no significant operations or assets other than cash, cash equivalents, and investments in its subsidiaries. All material intercompany accounts and transactions have been eliminated. Certain prior period amounts reported in our consolidated financial statements and notes thereto have been reclassified to conform to current period presentation, including all share and per share information relating to the stock split in the form of a stock dividend on October 8, 2021.
Nature of Business	Nature of Business – We are engaged in the manufacture and sale of chemical products. The chemical products we primarily manufacture, market and sell are ammonia, fertilizer grade AN (“HDAN”) and UAN for agricultural applications, high purity and commercial grade ammonia, high purity AN, sulfuric acids, concentrated, blended and regular nitric acid, mixed nitrating acids, carbon dioxide, and diesel exhaust fluid for industrial applications, and industrial grade AN (“LDAN”) and solutions for the mining industry. We manufacture and distribute our products in four facilities; three of which we own and are located in El Dorado, Arkansas (the “El Dorado Facility”); Cherokee, Alabama (the “Cherokee Facility”); and Pryor, Oklahoma (the “Pryor Facility”); and one of which we operate on behalf of a global chemical company in Baytown, Texas. Sales to customers include farmers, ranchers, fertilizer dealers and distributors primarily in the ranch land and grain production markets in the United States (“U.S.”); industrial users of acids throughout the U.S. and parts of Canada; and explosive manufacturers in the U.S. and parts of Mexico and Canada. These interim results are not necessarily indicative of results for a full year due, in part, to the seasonality of our sales of agricultural products and the timing of performing our major plant maintenance activities. Our selling seasons for agricultural products are primarily during the spring and fall planting seasons, which typically extend from March through June and from September through November.
Use of Estimates	Use of Estimates – The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Short-Term Investments	Short-Term Investments - Investments, which consist of U.S. treasury bills with an original maturities ranging from approximately 17 weeks to 51 weeks, were considered short-term investments. These investments are carried at cost which approximated fair value.
Equity Awards	Equity Awards – Equity award transactions with employees are measured based on the estimated fair value of the equity awards issued. For equity awards with service conditions that have a graded vesting period, we recognize compensation cost on a straight-line basis over the requisite service period for the entire award. Forfeitures are accounted for as they occur. We may issue new shares of common stock or may use treasury shares associated with the equity awards. 1. Summary of Significant Accounting Policies (continued) In January 2022 and March 2022, the compensation committee of our Board of Directors approved the grant of 224,455 shares of time-based restricted stock units and 160,724 shares of performance-based restricted stock units to certain executives and employees under our 2016 Long Term Incentive Plan. A portion of the time-based restricted stock unit shares will vest at the end of each one-year period at the rate of one-third per year for three years and a portion will vest 100% at the end of three years. The performance-based restricted stock units will vest on the third anniversary of the grant date subject to the achievement of certain performance metrics established by the Board of Directors as set out in the grant. Upon the third anniversary the grants may be modified in a range between 0% and 200% based upon achievement of the performance goals. The unvested restricted shares carry dividend and voting rights contingent upon the vesting and lapsing of restriction. Sales of these shares are restricted prior to the date of vesting. Pursuant to the terms of the underlying restricted stock agreements, unvested restricted shares may immediately vest upon the occurrence of a change in control (as defined by agreement), termination without cause or death.
Derivatives, Hedges and Financial Instruments	Derivatives, Hedges and Financial Instruments – Derivatives are recognized in the balance sheet and measured at fair value. Changes in fair value of derivatives are recorded in results of operations unless the normal purchase or sale exceptions apply, or hedge accounting is elected. The fair value amounts recognized for our derivative contracts executed with the same counterparty under a master netting arrangement may be offset. We have the choice to offset or not, but that choice must be applied consistently. A master netting arrangement exists if the reporting entity has multiple contracts with a single counterparty that are subject to a contractual agreement that provides for the net settlement of all contracts through a single payment in a single currency in the event of default on or termination of any one contract. Offsetting the fair values recognized for the derivative contracts outstanding with a single counterparty results in the net fair value of the transactions reported as an asset or a liability in the balance sheet. When applicable, we present the fair values of our derivative contracts under master netting agreements using a gross fair value presentation. Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date: Level 1 - Valuations of contracts classified as Level 1 are based on quoted prices in active markets for identical contracts. Level 2 - Valuations of contracts classified as Level 2 are based on quoted prices for similar contracts and valuation inputs other than quoted prices that are observable for these contracts. Level 3 - Valuations of assets and liabilities classified as Level 3 are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. At March 31, 2022 and December 31, 2021, we did not have any financial instruments with fair values materially different from their carrying amounts (which excludes issuance costs, if applicable). The carrying value of our Senior Secured Notes approximates fair value and is classified as a Level 2 fair value measurement. The fair value of financial instruments is not indicative of the overall fair value of our assets and liabilities since financial instruments do not include all assets, including intangibles, and all liabilities.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements ASU 2020-06 - In August 2020, the FASB issued ASU 2020-06, Debt-Debt with Conversion and other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s own Equity (Subtopic 815-40). This ASU addresses the complexity associated with applying GAAP to certain financial instruments with characteristics of liabilities and equity. The ASU includes amendments to the guidance on convertible instruments and the derivative scope exception for contracts in an entity’s own equity and simplifies the accounting for convertible instruments which include beneficial conversion features or cash conversion features by removing certain separation models. Additionally, the ASU requires entities to use the “if-converted” method when calculating diluted earnings per share for convertible instruments. This ASU will be effective for us on January 1, 2024; however, early adoption was permitted beginning January 1, 2021. We are currently evaluating the timing and the effect of adoption of this ASU on our consolidated financial statements and related disclosures. ASU 2020-04 – In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance for a limited time to ease the potential accounting burden associated with transitioning away from reference rates such as LIBOR that are expected to be discontinued. This ASU provides exceptions and optional expedients for applying GAAP to contract modifications, hedging relationships, and other transactions that reference LIBOR or other reference rates to be discontinued as a result of reference rate reform. They do not apply to modifications made or hedges entered into or evaluated after December 31, 2022, unless the hedging relationships existed as of that date and optional expedients for them were elected and retained through the end of the hedging relationship. This ASU became effective upon issuance. We continue to evaluate the effect of this ASU and plan to utilize this relief for our debt agreements that include LIBOR rates.

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2022

Basis of Consolidation – LSB and its subsidiaries (the “Company,” “we,” “us,” or “our”) are consolidated in the accompanying condensed consolidated financial statements. LSB is a holding company with no significant operations or assets other than cash, cash equivalents, and investments in its subsidiaries. All material intercompany accounts and transactions have been eliminated. Certain prior period amounts reported in our consolidated financial statements and notes thereto have been reclassified to conform to current period presentation, including all share and per share information relating to the stock split in the form of a stock dividend on October 8, 2021.

Nature of Business

Nature of Business – We are engaged in the manufacture and sale of chemical products. The chemical products we primarily manufacture, market and sell are ammonia, fertilizer grade AN (“HDAN”) and UAN for agricultural applications, high purity and commercial grade ammonia, high purity AN, sulfuric acids, concentrated, blended and regular nitric acid, mixed nitrating acids, carbon dioxide, and diesel exhaust fluid for industrial applications, and industrial grade AN (“LDAN”) and solutions for the mining industry. We manufacture and distribute our products in four facilities; three of which we own and are located in El Dorado, Arkansas (the “El Dorado Facility”); Cherokee, Alabama (the “Cherokee Facility”); and Pryor, Oklahoma (the “Pryor Facility”); and one of which we operate on behalf of a global chemical company in Baytown, Texas.

Sales to customers include farmers, ranchers, fertilizer dealers and distributors primarily in the ranch land and grain production markets in the United States (“U.S.”); industrial users of acids throughout the U.S. and parts of Canada; and explosive manufacturers in the U.S. and parts of Mexico and Canada.

These interim results are not necessarily indicative of results for a full year due, in part, to the seasonality of our sales of agricultural products and the timing of performing our major plant maintenance activities. Our selling seasons for agricultural products are primarily during the spring and fall planting seasons, which typically extend from March through June and from September through November.

Use of Estimates

Use of Estimates – The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Short-Term Investments

Short-Term Investments - Investments, which consist of U.S. treasury bills with an original maturities ranging from approximately 17 weeks to 51 weeks, were considered short-term investments. These investments are carried at cost which approximated fair value.

Equity Awards

Equity Awards – Equity award transactions with employees are measured based on the estimated fair value of the equity awards issued. For equity awards with service conditions that have a graded vesting period, we recognize compensation cost on a straight-line basis over the requisite service period for the entire award. Forfeitures are accounted for as they occur. We may issue new shares of common stock or may use treasury shares associated with the equity awards.

1. Summary of Significant Accounting Policies (continued)

In January 2022 and March 2022, the compensation committee of our Board of Directors approved the grant of 224,455 shares of time-based restricted stock units and 160,724 shares of performance-based restricted stock units to certain executives and employees under our 2016 Long Term Incentive Plan. A portion of the time-based restricted stock unit shares will vest at the end of each one-year period at the rate of one-third per year for three years and a portion will vest 100% at the end of three years. The performance-based restricted stock units will vest on the third anniversary of the grant date subject to the achievement of certain performance metrics established by the Board of Directors as set out in the grant. Upon the third anniversary the grants may be modified in a range between 0% and 200% based upon achievement of the performance goals. The unvested restricted shares carry dividend and voting rights contingent upon the vesting and lapsing of restriction. Sales of these shares are restricted prior to the date of vesting. Pursuant to the terms of the underlying restricted stock agreements, unvested restricted shares may immediately vest upon the occurrence of a change in control (as defined by agreement), termination without cause or death.

Derivatives, Hedges and Financial Instruments

Derivatives, Hedges and Financial Instruments – Derivatives are recognized in the balance sheet and measured at fair value. Changes in fair value of derivatives are recorded in results of operations unless the normal purchase or sale exceptions apply, or hedge accounting is elected.

The fair value amounts recognized for our derivative contracts executed with the same counterparty under a master netting arrangement may be offset. We have the choice to offset or not, but that choice must be applied consistently. A master netting arrangement exists if the reporting entity has multiple contracts with a single counterparty that are subject to a contractual agreement that provides for the net settlement of all contracts through a single payment in a single currency in the event of default on or termination of any one contract. Offsetting the fair values recognized for the derivative contracts outstanding with a single counterparty results in the net fair value of the transactions reported as an asset or a liability in the balance sheet. When applicable, we present the fair values of our derivative contracts under master netting agreements using a gross fair value presentation.

Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date:

Level 1 - Valuations of contracts classified as Level 1 are based on quoted prices in active markets for identical contracts.

Level 2 - Valuations of contracts classified as Level 2 are based on quoted prices for similar contracts and valuation inputs other than quoted prices that are observable for these contracts.

Level 3 - Valuations of assets and liabilities classified as Level 3 are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement.

At March 31, 2022 and December 31, 2021, we did not have any financial instruments with fair values materially different from their carrying amounts (which excludes issuance costs, if applicable). The carrying value of our Senior Secured Notes approximates fair value and is classified as a Level 2 fair value measurement. The fair value of financial instruments is not indicative of the overall fair value of our assets and liabilities since financial instruments do not include all assets, including intangibles, and all liabilities.

Recently Issued Accounting Pronouncements

ASU 2020-06 - In August 2020, the FASB issued ASU 2020-06, Debt-Debt with Conversion and other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s own Equity (Subtopic 815-40). This ASU addresses the complexity associated with applying GAAP to certain financial instruments with characteristics of liabilities and equity. The ASU includes amendments to the guidance on convertible instruments and the derivative scope exception for contracts in an entity’s own equity and simplifies the accounting for convertible instruments which include beneficial conversion features or cash conversion features by removing certain separation models. Additionally, the ASU requires entities to use the “if-converted” method when calculating diluted earnings per share for convertible instruments. This ASU will be effective for us on January 1, 2024; however, early adoption was permitted beginning January 1, 2021. We are currently evaluating the timing and the effect of adoption of this ASU on our consolidated financial statements and related disclosures.

ASU 2020-04 – In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance for a limited time to ease the potential accounting burden associated with transitioning away from reference rates such as LIBOR that are expected to be discontinued. This ASU provides exceptions and optional expedients for applying GAAP to contract modifications, hedging relationships, and other transactions that reference LIBOR or other reference rates to be discontinued as a result of reference rate reform. They do not apply to modifications made or hedges entered into or evaluated after December 31, 2022, unless the hedging relationships existed as of that date and optional expedients for them were elected and retained through the end of the hedging relationship. This ASU became effective upon issuance. We continue to evaluate the effect of this ASU and plan to utilize this relief for our debt agreements that include LIBOR rates.