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v3.20.2

Long-Term Debt - Additional Information (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 15 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 30, 2020 USD ($) | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2020 USD ($) | Jun. 30, 2020 | Sep. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2021
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings of credit agreements |  |  |  |  |  |  |  | $ 452,163 | $ 0 |
Net investment hedge (losses) gains |  |  |  | $ (12,408) |  | $ 12,745 |  | $ (16,083) | $ 13,012 |
Commercial paper notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Weighted average interest rate |  |  |  | 0.55% |  |  |  | 0.55% |  |
Debt instrument maturity period |  |  |  |  |  |  |  | 46 days |  |
1.875% Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  | 1.875% |  |  |  | 1.875% |  |
2018 Credit Agreement |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings of credit agreements |  |  |  |  |  |  | $ 250,000 |  |  |
2019 Credit Agreement |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from borrowings of credit agreements | $ 200,000 |  |  |  |  |  |  |  |  |
Interest rate on amount borrowed | 1.375% |  |  |  |  |  |  |  |  |
Credit facilities |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt covenant ratio, maximum debt to EBITDA |  |  |  |  | 4.00 |  |  |  |  |
Priority debt basket |  |  |  | 0.24 |  |  |  | 0.24 |  |
Basis point fee |  |  |  | 0.0010 |  |  |  | 0.0010 |  |
Credit facilities | Forecast |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt covenant ratio, maximum debt to EBITDA |  | 3.50 | 4.00 |  |  |  |  |  |  | 4.50

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