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Long-Term Debt - Interest Coverage Ratio & Leverage Ratio (Details) - 2018 Refinancing Credit Agreement	9 Months Ended
	Sep. 30, 2020
Debt Instrument [Line Items]
Interest coverage ratio	3.0
Leverage ratio	3.25
Leverage ratio temporary increase	3.5

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Debt Instrument, Restricted Covenants, Leverage Ratio

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Debt Instrument, Restrictive Covenants, EBITDA to Interest Expense Ratio, Minimum

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Debt Instrument, Restrictive Covenants, Leverage Ratio, Maximum

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