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Leases - Additional Information (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
lease
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Jan. 01, 2019
USD ($)
Lessee, Lease, Description [Line Items]        
Right of use assets $ 15,931      
Lessee, Operating Lease, Liability, Payments, Due 21,638      
Operating lease liability 19,796      
Right of use assets obtained in exchange for lease obligations, operating leases $ 3,364 $ 0 $ 0  
Weighted average remaining lease term for operating lease 3 years 8 months 12 days      
Weighted average discount rate used to determine the operating lease liability 4.70%      
Lease expense $ 5,000      
INDIA        
Lessee, Lease, Description [Line Items]        
Right of use assets obtained in exchange for lease obligations, operating leases $ 3,400      
Right of use assets obtained in exchange for lease obligations, number of leases | lease 2      
NEW YORK        
Lessee, Lease, Description [Line Items]        
Operating lease liability $ 12,400      
Lease term 7 years      
Accounting Standards Update 2016-02        
Lessee, Lease, Description [Line Items]        
Right of use assets       $ 17,200
Lessee, Operating Lease, Liability, Payments, Due       21,100
Operating lease liability       $ 21,100