| Cover | 12 Months Ended |
| Dec. 31, 2022 | |
| Cover [Abstract] | |
| Document Type | DEF 14A |
| Entity Registrant Name | LXP INDUSTRIAL TRUST |
| Entity Central Index Key | 0000910108 |
| Amendment Flag | false |
| Pay vs Performance Disclosure - USD ($) | 12 Months Ended | |||
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | ||
| Pay vs Performance Disclosure [Table] | ||||
| Pay vs Performance [Table Text Block] | PAY VERSUS PERFORMANCE DISCLOSURE Pay Versus Performance Table Year Summary Compensation Table Total for PEO (1) Compensation Actually Paid to PEO Average Summary Compensation Table Total for Non-PEO NEOs (2) Average Compensation Actually Paid to Non-PEO NEOs Value of Initial Fixed $100 Investment Based On: Net Income ($000s) Company Selected Metric – Adjusted Company FFO ($000s) (4) Total Shareholder Return Peer Group Total Shareholder Return (3) 2022 $6,062,516 $(641,147) $1,946,976 $711,912 $67.04 $75.49 $116,243 $193,061 2021 $7,994,185 $14,286,704 $1,839,064 $2,843,214 $152.23 $143.06 $385,091 $223,196 2020 $5,711,382 $8,380,988 $1,392,517 $1,716,613 $104.19 $92.43 $186,391 $209,542 (1) Mr. Eglin Adjustments 2022 2021 2020 Amounts reported under “Stock Awards” in Summary Compensation Table $(3,444,528) $(3,216,612) $(2,664,761) Fair Value of Awards Granted in Year and Unvested as of Year-End $1,627,607 $4,938,791 $2,930,295 Change in Fair Value from Prior Year-End to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End $(2,384,351) $1,797,122 $573,917 Fair Value of Awards Granted and Vested in During Year at Vesting Date $274,919 $555,135 $320,331 Change in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year $(1,278,917) $2,218,082 $1,509,825 Fair Value at Year End of Awards Granted Prior to Year that Failed to Meet the Applicable Vesting Conditions During Year $(1,498,393) $ — $ — Dividends or Other Earnings Paid During Year prior to Vesting Date of Award Not Otherwise Included in Total Compensation for the Year $ — $ — $ — (2) For 2021 and 2020, our other NEOs included Beth Boulerice Joseph S. Bonventre Brendan P. Mullinix Lara Johnson Adjustments 2022 2021 2020 Amounts reported under “Stock Awards” in Summary Compensation Table $(898,500) $(580,851) $(387,287) Fair Value of Awards Granted in Year and Unvested as of Year-End $424,599 $891,805 $425,852 Change in Fair Value from Prior Year-End to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End $(430,524) $261,156 $90,552 Fair Value of Awards Granted and Vested in During Year at Vesting Date $71,718 $100,269 $46,569 Change in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year $(184,578) $331,771 $148,409 Fair Value at Year End of Awards Granted Prior to Year that Failed to Meet the Applicable Vesting Conditions During Year $(217,740) $ — $ — Dividends or Other Earnings Paid During Year prior to Vesting Date of Award Not Otherwise Included in Total Compensation for the Year $ — $ — $ — (3) Peer group is the MSCI US REIT Index, which is the index in the performance graph provided pursuant to Item 201(e) of Regulation S-K and the index used in our long-term incentive opportunity. Our long-term incentive opportunity also uses a competitor peer group. Our Compensation Discussion and Analysis discloses two peer groups, a sized-based peer group and a competitor peer group, which the Compensation Committee generally uses to compare our overall compensation practices against peer groups. (4) We have identified Adjusted Company FFO as the most important additional financial metric used to link pay and performance. A definition of Adjusted Company FFO and a reconciliation of Adjusted Company FFO to net income is included in Appendix A. | |||
| Named Executive Officers, Footnote [Text Block] | For 2021 and 2020, our other NEOs included Beth Boulerice Joseph S. Bonventre Brendan P. Mullinix Lara Johnson | |||
| Peer Group Issuers, Footnote [Text Block] | Peer group is the MSCI US REIT Index, which is the index in the performance graph provided pursuant to Item 201(e) of Regulation S-K and the index used in our long-term incentive opportunity. Our long-term incentive opportunity also uses a competitor peer group. Our Compensation Discussion and Analysis discloses two peer groups, a sized-based peer group and a competitor peer group, which the Compensation Committee generally uses to compare our overall compensation practices against peer groups. | |||
| PEO Total Compensation Amount | [1] | $ 6,062,516 | $ 7,994,185 | $ 5,711,382 |
| PEO Actually Paid Compensation Amount | $ (641,147) | 14,286,704 | 8,380,988 | |
| Adjustment To PEO Compensation, Footnote [Text Block] | (1) Mr. Eglin Adjustments 2022 2021 2020 Amounts reported under “Stock Awards” in Summary Compensation Table $(3,444,528) $(3,216,612) $(2,664,761) Fair Value of Awards Granted in Year and Unvested as of Year-End $1,627,607 $4,938,791 $2,930,295 Change in Fair Value from Prior Year-End to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End $(2,384,351) $1,797,122 $573,917 Fair Value of Awards Granted and Vested in During Year at Vesting Date $274,919 $555,135 $320,331 Change in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year $(1,278,917) $2,218,082 $1,509,825 Fair Value at Year End of Awards Granted Prior to Year that Failed to Meet the Applicable Vesting Conditions During Year $(1,498,393) $ — $ — Dividends or Other Earnings Paid During Year prior to Vesting Date of Award Not Otherwise Included in Total Compensation for the Year $ — $ — $ — | |||
| Non-PEO NEO Average Total Compensation Amount | $ 1,946,976 | 1,839,064 | 1,392,517 | |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 711,912 | 2,843,214 | 1,716,613 | |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | (2) For 2021 and 2020, our other NEOs included Beth Boulerice Joseph S. Bonventre Brendan P. Mullinix Lara Johnson Adjustments 2022 2021 2020 Amounts reported under “Stock Awards” in Summary Compensation Table $(898,500) $(580,851) $(387,287) Fair Value of Awards Granted in Year and Unvested as of Year-End $424,599 $891,805 $425,852 Change in Fair Value from Prior Year-End to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End $(430,524) $261,156 $90,552 Fair Value of Awards Granted and Vested in During Year at Vesting Date $71,718 $100,269 $46,569 Change in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year $(184,578) $331,771 $148,409 Fair Value at Year End of Awards Granted Prior to Year that Failed to Meet the Applicable Vesting Conditions During Year $(217,740) $ — $ — Dividends or Other Earnings Paid During Year prior to Vesting Date of Award Not Otherwise Included in Total Compensation for the Year $ — $ — $ — | |||
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | The relationship between compensation actually paid and company performance for the three years presented above aligns with our TSR due to the high percentage of total compensation that consists of equity awards. | |||
| Compensation Actually Paid vs. Net Income [Text Block] | Net income is not used in our executive compensation program due to fluctuations in net income experienced by real estate companies due to the impact of items such as depreciation and amortization and gains/losses on sales of properties, which was heavily impacted by the disposition volume in recent years as part of our portfolio transition from diversified to industrial. Although, net income is used to determine certain non-GAAP financial measures used in our executive compensation plan. | |||
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | Adjusted Company FFO was not used in our executive compensation program for the three years presented above due to the impact of our portfolio transition. The portfolio transition entailed selling higher yielding, but riskier office and other assets and recycling the proceeds into lower yielding, but less risky warehouse and distribution assets that have greater rent growth and releasing potential. As a result of such impact, Adjusted Company FFO has not been aligned with compensation actually paid. | |||
| Total Shareholder Return Vs Peer Group [Text Block] | The following illustrates our cumulative TSR for the three-year period beginning December 31, 2019 versus the MSCI US REIT Index. | |||
| Total Shareholder Return Amount | $ 67.04 | 152.23 | 104.19 | |
| Peer Group Total Shareholder Return Amount | 75.49 | 143.06 | 92.43 | |
| Net Income (Loss) | $ 116,243,000 | $ 385,091,000 | $ 186,391,000 | |
| Company Selected Measure Amount | 193,061,000 | 223,196,000 | 209,542,000 | |
| PEO Name | Mr. Eglin | Mr. Eglin | Mr. Eglin | |
| PEO [Member] | Amounts reported under Stock Awards in Summary Compensation Table | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | $ (3,444,528) | $ (3,216,612) | $ (2,664,761) | |
| PEO [Member] | Fair Value of Awards Granted in Year and Unvested as of Year-End | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 1,627,607 | 4,938,791 | 2,930,295 | |
| PEO [Member] | Change in Fair Value from Prior Year-End to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (2,384,351) | 1,797,122 | 573,917 | |
| PEO [Member] | Fair Value of Awards Granted and Vested in During Year at Vesting Date | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 274,919 | 555,135 | 320,331 | |
| PEO [Member] | Change in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (1,278,917) | 2,218,082 | 1,509,825 | |
| PEO [Member] | Fair Value at Year End of Awards Granted Prior to Year that Failed to Meet the Applicable Vesting Conditions During Year | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (1,498,393) | |||
| PEO [Member] | Dividends or Other Earnings Paid During Year prior to Vesting Date of Award Not Otherwise Included in Total Compensation for the Year | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | ||||
| Non-PEO NEO [Member] | Beth Boulerice | ||||
| Pay vs Performance Disclosure [Table] | ||||
| PEO Name | Beth Boulerice | Beth Boulerice | ||
| Non-PEO NEO [Member] | Joseph S Bonventre | ||||
| Pay vs Performance Disclosure [Table] | ||||
| PEO Name | Joseph S. Bonventre | Joseph S. Bonventre | ||
| Non-PEO NEO [Member] | Brendan P Mullinix | ||||
| Pay vs Performance Disclosure [Table] | ||||
| PEO Name | Brendan P. Mullinix | Brendan P. Mullinix | ||
| Non-PEO NEO [Member] | Lara Johnson | ||||
| Pay vs Performance Disclosure [Table] | ||||
| PEO Name | Lara Johnson | Lara Johnson | ||
| Non-PEO NEO [Member] | Amounts reported under Stock Awards in Summary Compensation Table | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (898,500) | $ (580,851) | $ (387,287) | |
| Non-PEO NEO [Member] | Fair Value of Awards Granted in Year and Unvested as of Year-End | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 424,599 | 891,805 | 425,852 | |
| Non-PEO NEO [Member] | Change in Fair Value from Prior Year-End to Current Year-End of Awards Granted Prior to Year that were Outstanding and Unvested as of Year-End | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (430,524) | 261,156 | 90,552 | |
| Non-PEO NEO [Member] | Fair Value of Awards Granted and Vested in During Year at Vesting Date | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 71,718 | 100,269 | 46,569 | |
| Non-PEO NEO [Member] | Change in Fair Value from Prior Year-End to Vesting Date of Awards Granted Prior to Year that Vested During Year | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (184,578) | 331,771 | 148,409 | |
| Non-PEO NEO [Member] | Fair Value at Year End of Awards Granted Prior to Year that Failed to Meet the Applicable Vesting Conditions During Year | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (217,740) | |||
| Non-PEO NEO [Member] | Dividends or Other Earnings Paid During Year prior to Vesting Date of Award Not Otherwise Included in Total Compensation for the Year | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | ||||
| [1] Mr. Eglin | ||||
