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Shareholders' Equity (Details) - USD ($) |  |  |  |  |  |  |  | 12 Months Ended | 115 Months Ended | 158 Months Ended | 174 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 08, 2022 | May 18, 2022 | Dec. 10, 2021 | Nov. 09, 2021 | May 17, 2021 | Nov. 10, 2020 | May 15, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2019 | Nov. 03, 2022 | Mar. 13, 2020 | Mar. 05, 2019
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Authorized Repurchase |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000 | $ 20,000,000 | $ 20,000,000
Stock repurchased during period (in shares) |  |  |  |  |  |  |  | 243,276 | 320,298 | 565,882 |  |  | 14,680,690 |  |  |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  |  | $ 13,755,000 | $ 22,466,000 | $ 31,229,000 |  |  | $ 276,765,000 |  |  |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  |  | $ 56.54 | $ 70.14 | $ 55.19 |  |  | $ 18.85 |  |  |
Dividends declared (in dollars per share) |  |  |  |  |  |  |  | $ 0.43 | $ 0.38 | $ 0.38 |  |  |  |  |  |
Cash dividends paid |  |  |  |  |  |  |  | $ 22,900,000 | $ 19,900,000 | $ 19,800,000 |  |  |  |  |  |
Contingent consideration (Note $4) |  |  |  |  |  |  |  | (6,000,000) | 66,000,000 |  |  |  |  |  |  |
BasX, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration (Note $4) |  |  | $ 78,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration paid in business combination (in shares) |  |  | 1,037,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interests issuable (in dollars per share) |  |  | $ 0.004 |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent Consideration - shares of AAON |  |  |  |  |  |  |  | $ (60,000,000.0) | $ (66,000,000) |  |  |  |  |  |  |
Stock issued during period, shares, issued for services (in shares) |  |  |  |  |  |  |  | 486,286 |  |  |  |  |  |  |  |
Regular Semi-Annual Dividend |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared (in dollars per share) | $ 0.24 | $ 0.19 |  | $ 0.19 | $ 0.19 | $ 0.19 | $ 0.19 |  |  |  |  |  |  |  |  |
Open market |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  |  |  |  |  | 122,112 | 0 | 103,689 | 4,327,367 |  |  |  |  |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  |  | $ 6,823,000 | $ 0 | $ 4,987,000 | $ 81,616,000 |  |  |  |  |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  |  | $ 55.87 | $ 0 | $ 48.10 | $ 18.86 |  |  |  |  |
401(k) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  |  |  |  |  | 103,936 | 297,772 | 438,921 |  |  | 8,308,368 |  |  |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  |  | $ 5,913,000 | $ 20,876,000 | $ 25,073,000 |  |  | $ 171,789,000 |  |  |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  |  | $ 56.89 | $ 70.11 | $ 57.12 |  |  | $ 20.68 |  |  |
Directors & employees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  |  |  |  |  | 17,228 | 22,526 | 23,272 |  | 2,044,955 |  |  |  |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  |  | $ 1,019,000 | $ 1,590,000 | $ 1,169,000 |  | $ 23,360,000 |  |  |  |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  |  | $ 59.15 | $ 70.59 | $ 50.23 |  | $ 11.42 |  |  |  |

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