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Debt (Narrative) (Details) $ in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Aug. 31, 2020 | Nov. 30, 2020 USD ($) agreement | Mar. 16, 2020 USD ($)
Debt Instrument [Line Items] |  |  |
Number of agreements | agreement |  | 2 |
Seventh Amended Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Revolving credit facility, amount |  |  | $ 150.0
Consolidated leverage ratio |  | 3.5 |
Consolidated interest coverage ratio |  | 3 |
Other Unsecured Debt [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Revolving credit facility, amount |  | $ 125.0 |
First Amendment To Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Revolving credit facility, expiration date | Mar. 16, 2025 | Sep. 30, 2025 |
Europe, The Middle East, Africa And India Subsidiary [Member] | Amended And Restated Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Revolving credit facility, amount |  |  | $ 100.0

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