Debt and Credit Agreements - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2019
Debt Instrument [Line Items]
Debt Issuance Costs, Noncurrent, Net		$ 1,900		$ 1,900
Net Debt to Consolidated Adjusted EBITDA Ratio Covenant		5.25		5.25				4.50
Other Nonoperating Expense		$ 1,432	$ 7,435	$ 1,920	$ 7,435
Debt Instrument, Covenant, Increase In Leverage Ratio				0.0025
LIBOR | Minimum
Debt Instrument [Line Items]
Variable rate basis spread	1.50%
LIBOR | Maximum
Debt Instrument [Line Items]
Variable rate basis spread	2.25%
Subsequent Event [Member]
Debt Instrument [Line Items]
Net Debt to Consolidated Adjusted EBITDA Ratio Covenant						4.75	5.75
Term Loan 2020 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 280,000		$ 280,000