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Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 22, 2017
Dec. 21, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Taxes [Line Items]            
Tax cuts and jobs act of 2017, incomplete accounting, provisional income tax expense       $ 19,997,000 $ 20,153,000  
U.S. federal statutory corporate tax rate 21.00% 35.00% 21.00% 21.00% 34.00%  
Tax cuts and jobs act of 2017, incomplete accounting, change in tax rate, deferred tax balances, income tax expense       $ 4,950,000    
Tax cuts and jobs act of 2017, incomplete accounting, provisional income tax expense related to onetime transition tax liability of foreign subsidiaries       24,625,000    
Tax cuts and jobs act of 2017, incomplete accounting, benefit included in provision for income taxes to offset one-time transition tax related to previous deferred tax liability that existed for undistributed foreign earnings that were not permanently reinvested         $ 9,578,000  
Undistributed earnings offsetting with dividend received deduction percent     100.00%      
Income tax holiday, amount of corporate income tax savings realized     $ 21,645,000 16,220,000 34,028,000  
Total unrecognized tax benefits     $ 3,795,000 2,819,000 $ 3,812,000 $ 3,877,000
Macedonia            
Income Taxes [Line Items]            
Income tax holiday, description     The government of Macedonia granted the Company a tax holiday that released the Company from the obligation to pay corporate income taxes for a ten year period, subject to certain limitations.      
Income tax holiday, period     10 years      
Income tax holiday, amount of corporate income tax savings realized     $ 0 $ 0    
Preferred Financing            
Income Taxes [Line Items]            
Net operating loss carryforward annual limitation     591,000      
Net operating loss carryforward expected to expire     0      
Net operating loss expired     $ 19,349,000      
U.S. State | Earliest Tax Year            
Income Taxes [Line Items]            
Operating loss carryforward, year of expiration     2020      
U.S. State | Latest Tax Year            
Income Taxes [Line Items]            
Operating loss carryforward, year of expiration     2039      
Non-U.S. Subsidiaries            
Income Taxes [Line Items]            
Operating loss carryforward, amount     $ 122,818,000      
Operating loss valuation allowance     110,012,000      
Foreign Jurisdictions            
Income Taxes [Line Items]            
Operating loss carryforward, amount     $ 13,153,000      
Foreign Jurisdictions | Earliest Tax Year            
Income Taxes [Line Items]            
Operating loss carryforward, year of expiration     2020      
Foreign Jurisdictions | Latest Tax Year            
Income Taxes [Line Items]            
Operating loss carryforward, year of expiration     2024      
Indefinite            
Income Taxes [Line Items]            
Operating loss carryforward, amount     $ 109,665,000      
Net operating loss carryforward, year of expiration     no expiration date