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Pay vs Performance Disclosure | 12 Months Ended
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Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Pay vs Performance Disclosure [Table] |  |  |
Pay vs Performance [Table Text Block] |
Pay Versus Performance
Year | Summary Compensation Table Total for PEO (1) | Compensation Actually Paid to PEO (2) | Average Summary Compensation Table Total for Non-PEO NEOs (3) | Average Compensation Actually Paid to Non-PEO NEOs (4) | Value of Initial Fixed $100 Investment Based On (5): | Net Income (thousands) | Return on Invested Capital (ROIC) (7)
Total Shareholder Return | Peer Group Total Shareholder Return (6)
(a) | (b) | (c) | (d) | (e) | (f) | (g) | (h) | (i)
2022 | $ | 4,498,650 |  | $ | 1,837,010 |  | $ | 973,521 |  | $ | 505,284 |  | $ | 91 |  | $ | 128 |  | $ | 82,406 |  | 12.71 | %
2021 | $ | 4,015,386 |  | $ | 1,084,292 |  | $ | 958,208 |  | $ | 352,480 |  | $ | 132 |  | $ | 141 |  | $ | 75,629 |  | 11.30 | %
2020 | $ | 4,478,318 |  | $ | 7,389,974 |  | $ | 1,333,898 |  | $ | 2,060,202 |  | $ | 143 |  | $ | 112 |  | $ | 64,566 |  | 17.59 | %
Company Selected Measure Name | Return on Invested Capital |  |
Named Executive Officers, Footnote [Text Block] | (1)The PEO is Bosway our Chief Executive Officer who has been CEO since 2019. (3)The non-PEO NEOs as a group included for purposes of calculating the average amounts in each applicable year are as follows: 2022: Murphy, Bolanowski, Watorek, Burns, and Jensen 2021: Murphy, Watorek, Burns, and Jensen 2020: Murphy, Syvrud, Watorek, Heard, and Burns |  |
Peer Group Issuers, Footnote [Text Block] | (6)The selected peer group is the S&P SmallCap 600 Industrials Index. |  |
PEO Total Compensation Amount | $ 4,498,650 | $ 4,015,386 | $ 4,478,318
PEO Actually Paid Compensation Amount | $ 1,837,010 | 1,084,292 | 7,389,974
Adjustment To PEO Compensation, Footnote [Text Block] | (2)To calculate Compensation Actually Paid ("CAP") for the PEO, the following adjustments were made to the SCT total in accordance with SEC methodology for determining CAP for each year shown:
| Year | 2022 | 2021 | 2020
| PEO | Bosway | Bosway | Bosway
| SCT Total Compensation | $ | 4,498,650 |  | $ | 4,015,386 |  | $ | 4,478,318 |
| Less: Stock Award Values Reported in SCT for the Covered Year | $ | (2,887,445) |  | $ | (2,887,488) |  | $ | (2,769,105) |
| Plus: Year-End Fair Value for Stock Awards Granted in the Covered Year | $ | 2,102,910 |  | $ | 780,890 |  | $ | 4,173,818 |
| Change in Fair Value of Outstanding Unvested Stock Awards from Prior Years | $ | (1,638,008) |  | $ | (777,993) |  | $ | 1,502,807 |
| Change in Fair Value of Stock Awards from Prior Years that Vested in the Covered Year | $ | (239,097) |  | $ | (46,503) |  | $ | 4,136 |
| Compensation Actually Paid | $ | 1,837,010 |  | $ | 1,084,292 |  | $ | 7,389,974 |
Non-PEO NEO Average Total Compensation Amount | $ 973,521 | 958,208 | 1,333,898
Non-PEO NEO Average Compensation Actually Paid Amount | $ 505,284 | 352,480 | 2,060,202
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] |
(4)To calculate CAP for the Non-PEO NEO, the following adjustments were made to the SCT total in accordance with SEC methodology for determining CAP for each year shown:
| Year | 2022 | 2021 | 2020
| Non-PEO NEOs | See Note 3 | See Note 3 | See Note 3
| Average SCT Total Compensation | $ | 973,521 |  | $ | 958,208 |  | $ | 1,333,898 |
| Less: Average Stock Award Values Reported in SCT for the Covered Year | $ | (427,869) |  | $ | (465,253) |  | $ | (557,480) |
| Plus: Average Year-End Fair Value for Stock Awards Granted in the Covered Year | $ | 303,370 |  | $ | 107,105 |  | $ | 862,274 |
| Average Change in Fair Value of Outstanding Unvested Stock Awards from Prior Years | $ | (246,093) |  | $ | (249,179) |  | $ | 317,929 |
| Average Change in Fair Value of Stock Awards from Prior Years that Vested in the Covered Year | $ | (97,645) |  | $ | 1,599 |  | $ | 103,581 |
| Average Compensation Actually Paid | $ | 505,284 |  | $ | 352,480 |  | $ | 2,060,202 |
Compensation Actually Paid vs. Total Shareholder Return [Text Block] |
Compensation Actually Paid vs. Net Income [Text Block] |
Compensation Actually Paid vs. Company Selected Measure [Text Block] |
Tabular List [Table Text Block] |
| Most Important Performance Measure |  | Nature |
| Return on invested capital |  | Financial measure |
| Net sales |  | Financial measure |
| Adjusted EPS |  | Financial measure |
| Days working capital |  | Financial measure |
Total Shareholder Return Amount | $ 91 | 132 | 143
Peer Group Total Shareholder Return Amount | 128 | 141 | 112
Net Income (Loss) | $ 82,406 | $ 75,629 | $ 64,566
Company Selected Measure Amount | 0.1271 | 0.1130 | 0.1759
PEO Name | Bosway |  |
Additional 402(v) Disclosure [Text Block] | Performance Measures The items listed below represent the most important performance measures used by the Company in 2022 to determine CAP, as described in greater detail in the "Compensation Philosophy and Pay-for-Performance" in the CD&A section of this Proxy Statement: Relationship between Pay and Performance Below are graphs showing the relationships between CAP and the performance measures presented in the table above. |  |
Measure [Axis]: 1 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Non-GAAP Measure Description [Text Block] | (5)The comparison of total shareholder returns assumes that $100 was invested on December 31 of the prior year in Gibraltar Industries, Inc. and the S&P SmallCap 600 Industrials Index, and that dividends were reinvested when paid. |  |
Measure [Axis]: 2 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Non-GAAP Measure Description [Text Block] | (7)The Company-selected measure, which is a measure the Company believes represents the most important financial performance not otherwise presented in the table above that the Company uses to link CAP to the NEOs for fiscal year 2022 to the Company's performance is Return on Invested Capital ("ROIC"), a non-GAAP measure. ROIC is defined as adjusted net income before interest (defined as income from continuing operations, as reported in the Company's audited financial statements plus after tax restructuring charges, senior leadership transition costs, acquisition related items, portfolio management, other special costs or intangible asset impairment charges, if any in applicable year, and tax effected interest expense), divided by average adjusted invested capital (the 13-month average of total stockholders' equity adjusted for special charges plus debt, minus cash for the applicable year). While the Company uses numerous financial measures for purposes of evaluating performance for the Company's compensation programs, the Company has determined that ROIC is the financial performance measure that, in the Company's assessment, represents the most important performance measure (that is not otherwise required to be disclosed in the table) used by the company to link compensation actually paid to the company's NEOs, for the most recently completed fiscal year, to Company performance. |  |
Measure [Axis]: 3 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Return on invested capital |  |
Measure [Axis]: 4 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Net sales |  |
Measure [Axis]: 5 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Adjusted EPS |  |
Measure [Axis]: 6 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Days working capital |  |
PEO [Member] | Stock Award Values Reported in SCT for the Covered Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ (2,887,445) | $ (2,887,488) | $ (2,769,105)
PEO [Member] | Year-End Fair Value for Stock Awards Granted in the Covered Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 2,102,910 | 780,890 | 4,173,818
PEO [Member] | Change in Fair Value of Outstanding Unvested Stock Awards from Prior Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (1,638,008) | (777,993) | 1,502,807
PEO [Member] | Change in Fair Value of Stock Awards from Prior Years that Vested in the Covered Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (239,097) | (46,503) | 4,136
Non-PEO NEO [Member] | Average Stock Award Values Reported in SCT for the Covered Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (427,869) | (465,253) | (557,480)
Non-PEO NEO [Member] | Average Year-End Fair Value for Stock Awards Granted in the Covered Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 303,370 | 107,105 | 862,274
Non-PEO NEO [Member] | Average Change in Fair Value of Outstanding Unvested Stock Awards from Prior Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (246,093) | (249,179) | 317,929
Non-PEO NEO [Member] | Average Change in Fair Value of Stock Awards from Prior Years that Vested in the Covered Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ (97,645) | $ 1,599 | $ 103,581

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