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Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Taxes [Line Items]        
Increase in deferred tax assets valuation allowance $ 1,800,000      
Foreign tax credits carryforwards 27,240,000 19,359,000    
Unrecognized tax benefit 14,996,000 13,079,000 4,012,000 8,414,000
Net unrecognized tax benefits that, if recognized, would favorably impact the effective income tax rate 13,200,000 12,200,000    
Decrease in unrecognized tax benefits due to the expiration of statutes of limitations and the settlement of various audits 600,000      
Accrued interest and penalties related to income tax liabilities 2,300,000 1,800,000    
Aggregate amount of interest and penalties recorded in the statement of operations 400,000 (200,000) (500,000)  
Undistributed earning of foreign subsidiaries 173,300,000      
Effects of retroactive changes in tax law   1,400,000    
Domestic Country
        
Income Taxes [Line Items]        
Deferred tax assets operating loss carry forwards subject to expiration 353,800,000      
Deferred tax assets operating loss carry forwards expiration year 2017      
Tax credits expiration year 2020      
General business tax credit carryforwards 7,700,000      
Foreign Entities
        
Income Taxes [Line Items]        
Deferred tax assets operating loss carry forwards 76,800,000      
Deferred tax assets operating loss carry forwards not subject to expiration, expiration period 10 years      
Deferred tax assets operating loss carry forwards not subject to expiration 63,800,000      
Valuation allowance against the tax benefit associated with NOLs 6,300,000      
Foreign tax credits carryforwards 24,200,000      
Valuation allowance against tax credit $ 8,100,000      
Tax credits expiration year 2014      
Foreign Entities | Minimum
        
Income Taxes [Line Items]        
Tax years open for audit 2006      
Foreign Entities | Maximum
        
Income Taxes [Line Items]        
Tax years open for audit 2013      
India Tax Authority
        
Income Taxes [Line Items]        
Income tax examination description The Company's Indian income tax returns covering fiscal years 2002 through 2006 and 2010 through 2011 are under audit by the Indian tax authority.      
Internal Revenue Service | Minimum
        
Income Taxes [Line Items]        
Tax years open for audit 2010      
Internal Revenue Service | Maximum
        
Income Taxes [Line Items]        
Tax years open for audit 2011