v3.6.0.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Equipment, Deferred Tax Asset, Revenue and Expense Recognition, Equity-Based Compensation and Income Taxes (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Nov. 30, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Deferred Tax Asset and Amount Due Pursuant to Tax Receivable Agreement        
Percentage of tax benefits payable to partners under tax receivable agreement 85.00%      
Remaining percentage of cash savings realized by the Company (as a percent)   15.00%    
Revenue and Expense Recognition        
Reimbursable expenses billed to clients   $ 16,369 $ 13,678 $ 9,990
Income Taxes        
Unrecognized tax benefits   0 0 0
Unrecognized tax benefits, interest and penalties   $ 0 $ 0 $ 0
Issued Prior to December 1, 2016        
Equity-based Compensation        
Minimum age of retiring employees required so that certain qualifying awards granted during employment will not be forfeited   54 years    
Consecutive years of service of retiring employees required so that certain qualifying awards granted during employment will not be forfeited   8 years    
Issued On or after December 1, 2016        
Equity-based Compensation        
Minimum age of retiring employees required so that certain qualifying awards granted during employment will not be forfeited   56 years    
Consecutive years of service of retiring employees required so that certain qualifying awards granted during employment will not be forfeited   5 years    
Office equipment and furniture and fixtures | Minimum        
Equipment and leasehold improvements, net        
Useful lives   3 years    
Office equipment and furniture and fixtures | Maximum        
Equipment and leasehold improvements, net        
Useful lives   7 years