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Income taxes - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Taxes [Line Items]        
Loss carryforwards   $ 22,873    
Loss carryforwards not subject to expiration   205,054    
Tax Act, provisional amount related to transition tax $ 80,580      
Transition tax installment period 8 years      
Tax Act, provisional amount remaining to installment payments   44,929    
Tax Act, transition tax payable, non-current   1,366    
Increase (decrease) in reserve for uncertain tax positions   567 $ 5,665 $ 5,546
Tax credits   14,077 21,936 13,529
Tax credit offsetting GILTI tax   1,245 7,872  
Global intangible low-taxed income (GILTI)   2,851 11,323 15,795
Net GILTI tax   1,606 3,451  
Tax cuts and jobs act, global intangible low-tax income, net tax expense (benefit) amount   6,563    
Tax Act, benefits included in valuation allowance   13,182    
Undistributed earnings   955,833    
Unrecognized tax benefits   17,821 17,425  
Accrued for interest   859 875  
Interest benefit   16 501  
Interest expense   485    
Reserve for uncertain tax benefits   470    
U.S. Federal        
Income Taxes [Line Items]        
Loss carryforwards   64,646    
U.S. Federal | Plastic Packaging Inc.        
Income Taxes [Line Items]        
Loss carryforwards   14,493    
Foreign        
Income Taxes [Line Items]        
Loss carryforwards   321,473    
Foreign | Next five years        
Income Taxes [Line Items]        
Operating loss carryforwards subject to expiration   22,860    
Foreign | 2025 to 2039        
Income Taxes [Line Items]        
Operating loss carryforwards subject to expiration   93,559    
State        
Income Taxes [Line Items]        
Loss carryforwards   9,662    
State credit carry forwards   16,871    
Uncertain Items Arising During Year        
Income Taxes [Line Items]        
Increase (decrease) in reserve for uncertain tax positions   2,051 2,330 1,866
Uncertain Items Arising During Prior Years        
Income Taxes [Line Items]        
Increase (decrease) in reserve for uncertain tax positions   $ (1,484) $ 3,743 $ (2,601)