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Debt - Narrative (Details) - USD ($)
9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Aug. 01, 2019
Debt Instrument [Line Items]      
Line of Credit Facility, Covenant Terms The Company’s initial consolidated net debt to consolidated adjusted EBITDA ratio cannot exceed 4.25 to 1, with step downs in the permitted ratio over the course of the New Credit Facility. The Company’s consolidated adjusted EBITDA to interest expense ratio cannot be less than 3.0 to 1. The New Credit Facility also prohibits the payment of cash dividends if the Company is in default or if the amount of the dividend paid annually exceeds the greater of $50.0 million and 20% of consolidated adjusted EBITDA unless the ratio of consolidated net debt to consolidated adjusted EBITDA is less than 2.0 to 1, in which case there is no such limitation on amount.    
Line of Credit Facility, Covenant Compliance As of September 30, 2020 and December 31, 2019, the Company was in compliance with all of the New Credit Facility covenants.    
Line of Credit Facility, Amount Outstanding $ 155,000,000 $ 171,169,000  
Industrial Development Revenue Bond 10,000,000.0    
Bank lines of credit and other debt obligations 1,950,000 2,608,000  
Debt Issuance Cost Capitalized to Term loans and Long Term Debt 11,873,000 14,196,000  
Line of Credit Facility, Increase (Decrease), Net $ 300,000,000.0    
Other off balance sheet arrangements In addition to the bank letters of credit described in the “Credit facilities” subsection above, the Company’s only other off-balance sheet arrangements include certain financial and other guarantees. The Company’s total bank letters of credit and guarantees outstanding as of September 30, 2020 were approximately $12 million.    
Derivative Variable Interest Rate 20.00%    
Percentage of term loan principal amortization year three 7.50%    
Percentage of term loan principal amortization year four and five 10.00%    
Derivative Basis Spread On Variable Rate 1.64%    
Letters Of Credit Outstanding Amount $ 12,000,000    
Derivative Fixed Interest Rate 3.10%    
Percentage of term loan principal amortization year two 5.00%    
Percentage of term loan principal amortization year one 5.00%    
Derivative Liability, Notional Amount $ 170,000,000.0    
Repayment of long-term debt 28,100,000    
Debt Issuance Costs, Current, Net 6,300,000 7,600,000  
Deferred Finance Costs Noncurrent Gross $ 11,900,000 $ 14,200,000 $ 23,700,000
Minimum [Member]      
Debt Instrument [Line Items]      
Line Of Credit Facility Commitment Fee Percentage 0.20%    
Maximum [Member]      
Debt Instrument [Line Items]      
Line Of Credit Facility Commitment Fee Percentage 0.30%    
Revolver [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility Current Borrowing Capacity $ 239,000,000    
Line of Credit Facility Maximum Borrowing Capacity     400,000,000.0
Bank lines of credit and other debt obligations 6,000,000    
Deferred Finance Costs Noncurrent Gross     8,300,000
Domestic Line Of Credit [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility Maximum Borrowing Capacity     600,000,000.0
Foreign Line of Credit [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility Maximum Borrowing Capacity     150,000,000.0
Bank Lines of credit and other debt obligations [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Unused Borrowing Capacity, Amount $ 38,000,000    
Deferred Finance Costs Noncurrent Gross     $ 15,500,000
Debt [Member]      
Debt Instrument [Line Items]      
Debt Instrument Interest Rate During Period 2.20%    
Debt, Weighted Average Interest Rate 1.90%