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Shareholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
May 06, 2022 | May 07, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Aug. 31, 2021 | Aug. 31, 2019 | Aug. 31, 2018
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Net earnings, net of tax, attributable to noncontrolling interests |  |  | $ 2.7 | $ 5.4 |  |  |
Dividend declared per share |  | $ 1.26 |  |  |  |  |
Dividend declared date | May 06, 2022 | May 07, 2021 |  |  |  |  |
Dividend payable date |  | Jun. 15, 2021 |  |  |  |  |
Dividends Payable, Date of Record | Jun. 01, 2022 | Jun. 01, 2021 |  |  |  |  |
Shares authorized to be repurchased (in shares) |  |  |  |  | 4,000,000.0 | 6,000,000.0 | 6,000,000.0
August 2021 Authorization |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Shares remaining authorized for repurchase (in shares) |  |  | 4,000,000.0 |  |  |  |
August 2019 Authorization |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Shares repurchased (in shares) |  |  | 600,000 | 1,100,000 |  |  |
Total cost of shares repurchased |  |  | $ 59.9 | $ 100.1 |  |  |
Shares remaining authorized for repurchase (in shares) |  |  | 600,000 |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Dividend declared per share | $ 1.36 |  |  |  |  |  |
Dividend payable date | Jun. 15, 2022 |  |  |  |  |  |
Non-Controlling Interests |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Net earnings, net of tax, attributable to noncontrolling interests |  |  | $ 0.5 | $ 0.9 |  |  |

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