Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Schedule Of Income Taxes [Line Items]      
Deferred tax liability, net $ 28,551,000 $ 33,088,000  
Deferred tax liability related to intangibles not amortizable for tax purposes 23,020,000 25,976,000  
Deferred tax asset related to net operating loss carryforwards 23,139,000 31,604,000  
Deferred tax liabilities, other 1,711,000 1,664,000  
Deferred tax assets operating loss carryforwards, federal 176,400,000    
Deferred tax assets operating loss carryforwards, state 6,400,000    
Operating losses carryforwards attributable to deductions originating from exercise of non-qualified employee stock options 116,500,000    
Current state and local tax expense (benefit) 1,568,000 225,000 384,000
Undistributed earnings related to foreign subsidiaries 700,000    
Unrecognized tax benefits 0 0  
Income tax examinations and adjustments minimum year 3 years    
Income tax examination, description We are no longer subject to U.S. federal income tax examinations for years before 2009 and are no longer subject to state and local income tax examinations by tax authorities for years before 2008.    
Pre Acquisition
      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards, expiration year 2019    
RMO
      
Schedule Of Income Taxes [Line Items]      
Deferred tax liability, net 1,500,000    
Deferred tax liability related to intangibles not amortizable for tax purposes 1,500,000    
Deferred tax asset related to net operating loss carryforwards 100,000    
RMO | Maximum
      
Schedule Of Income Taxes [Line Items]      
Deferred tax liabilities, other $ 100,000    
INDIA
      
Schedule Of Income Taxes [Line Items]      
Income tax holiday description This holiday began upon commencement of business operations in 2008 and expired on March 31, 2011.    
Tax holiday in Philippines expiration year Mar. 31, 2011    
PHILIPPINES
      
Schedule Of Income Taxes [Line Items]      
Income tax holiday description Under such PEZA registrations, the income tax holiday of our PEZA-registered project in the Philippines expires in 2015.    
Tax holiday in Philippines expiration year 2015    
Federal
      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards, expiration year 2020    
Income tax year no longer subject to examinations 2009    
State
      
Schedule Of Income Taxes [Line Items]      
Operating Loss Carryforwards Expiration Year 2013    
Income tax year no longer subject to examinations 2008