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Debt and Financing Arrangements (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Oct. 15, 2018
Revolver
Debt Instrument [Line Items]
Principal amount			$ 150,000,000
Additional principal amount available (up to)			100,000,000
Amount outstanding	$ 0	$ 0
Swing Loans
Debt Instrument [Line Items]
Additional principal amount available (up to)			20,000,000
Letters of Credit
Debt Instrument [Line Items]
Additional principal amount available (up to)			$ 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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