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Debt and Financing Arrangements (Details) - USD ($) | Mar. 31, 2021 | Oct. 15, 2018
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Revolving Facility |  |
Debt Instrument [Line Items] |  |
Principal amount |  | $ 150,000,000
Long-term debt | $ 0 |
Credit Agreement |  |
Debt Instrument [Line Items] |  |
Additional borrowings available |  | 100,000,000
Swing Loans |  |
Debt Instrument [Line Items] |  |
Additional borrowings available |  | 20,000,000
Letter of Credit |  |
Debt Instrument [Line Items] |  |
Additional borrowings available |  | $ 20,000,000

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