Debt - Table (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt	$ 904,783	$ 899,134
Less: debt issuance costs	(9,550)	(11,099)
Less: short-term and current portion of long-term debts	(48,079)	(38,967)
Total long-term debt	$ 847,154	$ 849,068
Revolver [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	159.00%	165.00%
Total debt	$ 189,503	$ 160,000
U.S. Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	159.00%	165.00%
Total debt	$ 555,000	$ 570,000
EURO Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	150.00%	150.00%
Total debt	$ 148,115	$ 157,062
Industrial development bonds [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	526.00%	526.00%
Total debt	$ 10,000	$ 10,000
Bank lines of credit and other debt obligations [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate Terms	Various	Various
Total debt	$ 2,165	$ 2,072

Amount of short-term and long-term debt and lease obligation.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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