Annual report pursuant to section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

v2.4.0.8
Commitments and Contingencies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2006
Dec. 31, 2008
Dec. 31, 2007
Dec. 31, 2013
MCG Acquisition
Contingent Consideration
Dec. 31, 2012
MCG Acquisition
Contingent Consideration
Dec. 31, 2011
MCG Acquisition
Contingent Consideration
Dec. 31, 2013
Office Equipment
Dec. 31, 2012
Office Equipment
Aug. 31, 2010
Leasehold Improvements
Dec. 31, 2006
Leasehold Improvements
Aug. 31, 2014
Scenario, Forecast
Leasehold Improvements
Dec. 31, 2013
General, Administrative and Other Expenses
Dec. 31, 2012
General, Administrative and Other Expenses
Dec. 31, 2011
General, Administrative and Other Expenses
Commitments And Contingencies [Line Items]                                  
Operating lease rent expense $ 3,558 $ 3,588 $ 3,304                            
Sub-lease income 805 764 1,006                            
Operating lease rent expense, net                             2,753 2,824 2,298
Lease commencement date 2007-01-01                                
Lease expires Sep. 30, 2017                                
Rent for free periods       Rent free periods of 6 to 9 months                          
Leasehold improvement incentive allowance available       1,538                          
Leasehold improvements 3,679 3,557   513   3,284                      
Leasehold improvement incentives received         39 1,499                      
Letters of credit in favor of landlord                       1,013 2,023 506      
Capital lease obligation                   19 33            
Contingent consideration percentage of EBITDA             22.00%                    
Number of years contingent consideration adjusted annual EBITDA             5 years                    
Contingent consideration payments             703 720 663                
Payments recorded as compensation expense $ 31