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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure [Table] |  |  |
Pay vs Performance [Table Text Block] |
|  |  |  |  | Value of initial fixed $100 investment based on : |  |
Year | Summary Compensation Table Total for PEO | Compensation Actually Paid to PEO | Average Summary Compensation Table Total for non-PEO NEOs | Average Compensation Actually Paid to non-PEO NEOs | Total Shareholder Return ($) | Peer Group Total Shareholder Return | Net Income ($ million) | Adjusted EBITDA ($ million)
(a) | (b) | (c) | (d) | (e) | (f) | (g) | (h) | (i)
2022 | $ | 4,660,482 |  | $ | 5,412,851 |  | $ | 1,763,694 |  | $ | 1,971,105 |  | 134.28 | 113.29 | 96.5 | 253.5
2021 | $ | 4,725,711 |  | $ | 5,284,446 |  | $ | 1,737,959 |  | $ | 2,056,415 |  | 119.3 | 108.68 | 118.5 | 250.9
2020 | $ | 3,714,562 |  | $ | 3,686,996 |  | $ | 1,671,398 |  | $ | 1,606,676 |  | 98.09 | 102.37 | 98.6 | 251.9
Column (b). Reflects the total compensation amounts reported in the Summary Compensation Table for our President and CEO, A. William Higgins, for the years shown.
Column (c). “Compensation actually paid” to our CEO in each of 2020, 2021 and 2022 reflects the respective amounts shown in Column (b) of the table above, adjusted as set forth in the table below, as required by SEC rule.
Company Selected Measure Name | AIN Adjusted EBITDA |  |
Named Executive Officers, Footnote [Text Block] | Column (b). Reflects the total compensation amounts reported in the Summary Compensation Table for our President and CEO, A. William Higgins, for the years shown.Column (d). Reflects the average total compensation amounts reported in the Summary Compensation Table for all NEOs other that President and CEO, A. William Higgins. For all applicable years, our non-CEO NEOs were Stephen Nolan, Daniel Halftermeyer, Greg Harwell and Joseph Gaug. |  |
Peer Group Issuers, Footnote [Text Block] | Column (g). For the relevant year, represents the cumulative total shareholder return (TSR) for the Company’s compensation benchmarking peer groups. For 2022, this group is the same group identified on page 29. However, prior to 2022, the benchmarking peer group consisted of: Aerojet Rocketdyne Holdings Inc, Barnes Group Inc, Curtiss-Wright Corp, Donaldson Company Inc, Esco Technologies Inc, Glatfelter Corp, Heico Corp, Hexcel Corp, Kadant Inc, Kaman Corp, Mativ Holdings Inc, Teledyne Technologies Inc, Trimas Corp and Woodward Inc. The TSRs shown reflect the differing peer groups for the applicable periods. |  |
PEO Total Compensation Amount | $ 4,660,482 | $ 4,725,711 | $ 3,714,562
PEO Actually Paid Compensation Amount | $ 5,412,851 | 5,284,446 | 3,686,996
Adjustment To PEO Compensation, Footnote [Text Block] | Column (c). “Compensation actually paid” to our CEO in each of 2020, 2021 and 2022 reflects the respective amounts shown in Column (b) of the table above, adjusted as set forth in the table below, as required by SEC rule.
Year |  | 2020 |  | 2021 |  | 2022
CEO |  | Higgins |  | Higgins |  | Higgins
SCT Total Compensation ($) |  | $ | 3,714,562 |  |  | $ | 4,725,711 |  |  | $ | 4,660,482 |
Less: Stock Award Values reported in SCT for the applicable year ($) |  | $ | 1,700,000 |  |  | $ | 2,000,000 |  |  | $ | 2,200,000 |
Plus: YE Fair Value of Stock Awards granted in the applicable year ($) |  | $ | 1,672,434 |  |  | $ | 2,216,367 |  |  | $ | 2,522,129 |
Change in Fair Value of outstanding unvested stock awards from prior years ($) |  | $ | — |  |  | $ | 342,368 |  |  | $ | 442,425 |
Change in Fair Value of Stock Awards from prior years that vested in the applicable year ($) |  | $ | — |  |  | $ | — |  |  | $ | (12,185) |
Less: Fair value of Stock Awards forfeited during the applicable year |  | $ | — |  |  | $ | — |  |  | $ | — |
Less: Aggregate change in Actuarial Present Value of accumulated pension benefit |  | $ | — |  |  | $ | — |  |  | $ | — |
Plus: Aggregate Service cost and prior year costs for pension benefit |  | $ | — |  |  | $ | — |  |  | $ | — |
Compensation Actually Paid |  | $ | 3,686,996 |  |  | $ | 5,284,446 |  |  | $ | 5,412,851 |
Column (d). Reflects the average total compensation amounts reported in the Summary Compensation Table for all NEOs other that President and CEO, A. William Higgins. For all applicable years, our non-CEO NEOs were Stephen Nolan, Daniel Halftermeyer, Greg Harwell and Joseph Gaug.
Column (e). Average “Compensation actually paid” to our CEO in each of 2020, 2021 and 2022 reflects the respective amounts shown in Column (b) of the table above, adjusted as set forth in the table below, as required by SEC rule.
Non-PEO NEO Average Total Compensation Amount | $ 1,763,694 | 1,737,959 | 1,671,398
Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,971,105 | 2,056,415 | 1,606,676
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | Column (e). Average “Compensation actually paid” to our CEO in each of 2020, 2021 and 2022 reflects the respective amounts shown in Column (b) of the table above, adjusted as set forth in the table below, as required by SEC rule.
Year |  | 2020 |  | 2021 |  | 2022
|  | (Average) |  | (Average) |  | (Average)
SCT Total Compensation ($) |  | $ | 1,671,398 |  |  | $ | 1,737,959 |  |  | $ | 1,763,694 |
Less: Stock Award Values reported in SCT for the applicable year ($) |  | $ | 481,304 |  |  | $ | 545,079 |  |  | $ | 630,813 |
Plus: YE Fair Value of Stock Awards granted in the applicable year ($) |  | $ | 467,851 |  |  | $ | 603,614 |  |  | $ | 723,158 |
Change in Fair Value of outstanding unvested stock awards from prior years ($) |  | $ | (19,525) |  |  | $ | 161,065 |  |  | $ | 123,341 |
Change in Fair Value of Stock Awards from prior years that vested in the applicable year ($) |  | $ | (31,744) |  |  | $ | 98,856 |  |  | $ | — |
Less: Fair value of Stock Awards forfeited during the applicable year ($) |  | $ | — |  |  | $ | — |  |  | $ | 8,275 |
Less: Aggregate change in Actuarial Present Value of accumulated pension benenfit ($) |  | $ | — |  |  | $ | — |  |  | $ | — |
Plus: Aggregate Service cost and prior year costs for pension benefit |  | $ | — |  |  | $ | — |  |  | $ | — |
Compensation Actually Paid |  | $ | 1,606,676 |  |  | $ | 2,056,415 |  |  | $ | 1,971,105 |
Column (f). For the relevant year, represents the cumulative total shareholder return (TSR) for the Company for the measurement period ending December 31, 2022, 2021 and 2020, respectively. TSR assumes that $100 was invested on December 31, 2019, and that dividends for reinvested when and as paid.
Column (g). For the relevant year, represents the cumulative total shareholder return (TSR) for the Company’s compensation benchmarking peer groups. For 2022, this group is the same group identified on page 29. However, prior to 2022, the benchmarking peer group consisted of: Aerojet Rocketdyne Holdings Inc, Barnes Group Inc, Curtiss-Wright Corp, Donaldson Company Inc, Esco Technologies Inc, Glatfelter Corp, Heico Corp, Hexcel Corp, Kadant Inc, Kaman Corp, Mativ Holdings Inc, Teledyne Technologies Inc, Trimas Corp and Woodward Inc. The TSRs shown reflect the differing peer groups for the applicable periods.
Column (h). Reflects “Net Income” as shown in the Company’s Consolidated Income Statements included in the Company’s Annual Reports on Form 10-K for each of the years ended December 31, 2022, 2021 and 2020.
Column (i). AIN Adjusted EBITDA was chosen as the “company selected financial metric” as it is the most heavily weighted of the annual performance measurement metric used in our executive compensation program (see pp. 32-33).
For the purposes of this disclosure, it is presumed that performance achievement level will be at target for any unvested performance shares (see page 32). No dividends are paid or accrued on any unvested equity awards. No adjustments were made relative to pension benefits, as Mr. Halftermeyer is the only PEO or NEO who participates in a defined benefit pension plan. As a non-U.S. citizen, Mr. Halftermeyer participates in foreign pension schemes, and the costs of his retirement benefits are paid through defined premium costs which are already included in his summary compensation table totals.
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] |  |  |
Total Shareholder Return Vs Peer Group [Text Block] |  |  |
Tabular List [Table Text Block] |
Most Important Performance Metrics
•AIN Adjusted EBITDA
•MC Adjusted EBITDA
•AEC Adjusted EBITDA
•AIN TRIR
Total Shareholder Return Amount | $ 134.28 | 119.3 | 98.09
Peer Group Total Shareholder Return Amount | 113.29 | 108.68 | 102.37
Net Income (Loss) | $ 96,500,000 | $ 118,500,000 | $ 98,600,000
Company Selected Measure Amount | 253,500,000 | 250,900,000 | 251,900,000
PEO Name | A. William Higgins |  |
Additional 402(v) Disclosure [Text Block] | Column (f). For the relevant year, represents the cumulative total shareholder return (TSR) for the Company for the measurement period ending December 31, 2022, 2021 and 2020, respectively. TSR assumes that $100 was invested on December 31, 2019, and that dividends for reinvested when and as paid.Column (h). Reflects “Net Income” as shown in the Company’s Consolidated Income Statements included in the Company’s Annual Reports on Form 10-K for each of the years ended December 31, 2022, 2021 and 2020.For the purposes of this disclosure, it is presumed that performance achievement level will be at target for any unvested performance shares (see page 32). No dividends are paid or accrued on any unvested equity awards. No adjustments were made relative to pension benefits, as Mr. Halftermeyer is the only PEO or NEO who participates in a defined benefit pension plan. As a non-U.S. citizen, Mr. Halftermeyer participates in foreign pension schemes, and the costs of his retirement benefits are paid through defined premium costs which are already included in his summary compensation table totals. Relationship between “Compensation Actually Paid” and Performance The graphs below show the relationship of “compensation actually paid” to our CEO and other named executive officers in 2020, 2021 and 2022 to (1) the TSR for both the Company and our compensation peer benchmarking groups, (2) the Company’s net income, and (3) the Company’s adjusted EBITDA. |  |
Measure [Axis]: 1 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | •AIN Adjusted EBITDA |  |
Non-GAAP Measure Description [Text Block] | Column (i). AIN Adjusted EBITDA was chosen as the “company selected financial metric” as it is the most heavily weighted of the annual performance measurement metric used in our executive compensation program (see pp. 32-33). |  |
Measure [Axis]: 2 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | •MC Adjusted EBITDA |  |
Measure [Axis]: 3 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | •AEC Adjusted EBITDA |  |
Measure [Axis]: 4 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | •AIN TRIR |  |
PEO [Member] | Equity Award Adjustments [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ 2,200,000 | $ 2,000,000 | $ 1,700,000
PEO [Member] | Equity Awards Granted During the Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 2,522,129 | 2,216,367 | 1,672,434
PEO [Member] | Equity Awards Granted in Prior Years, Unvested [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 442,425 | 342,368 | 0
PEO [Member] | Equity Awards Granted in Prior Years, Vested [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (12,185) | 0 | 0
PEO [Member] | Equity Awards that Failed to Meet Vesting Conditions [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 0 | 0
PEO [Member] | Change in Pension Value [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 0 | 0
PEO [Member] | Pension Adjustments, Service Cost [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 0 | 0
Non-PEO NEO [Member] | Equity Award Adjustments [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 630,813 | 545,079 | 481,304
Non-PEO NEO [Member] | Equity Awards Granted During the Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 723,158 | 603,614 | 467,851
Non-PEO NEO [Member] | Equity Awards Granted in Prior Years, Unvested [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 123,341 | 161,065 | (19,525)
Non-PEO NEO [Member] | Equity Awards Granted in Prior Years, Vested [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 98,856 | (31,744)
Non-PEO NEO [Member] | Equity Awards that Failed to Meet Vesting Conditions [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 8,275 | 0 | 0
Non-PEO NEO [Member] | Change in Pension Value [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 0 | 0
Non-PEO NEO [Member] | Pension Adjustments, Service Cost [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ 0 | $ 0 | $ 0

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