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Debt and Financing Arrangements (Details) - USD ($)	Jun. 30, 2021	Oct. 15, 2018
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

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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