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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]  
Future Minimum Non-Cancelable Lease Payments Under Operating Leases

Future minimum non-cancelable lease payments under operating leases as of December 31, 2018, were as follows (in thousands):

 

Year ended December 31,

 

Lease Payments

 

2019

 

$

3,535

 

2020

 

 

3,027

 

2021

 

 

3,076

 

2022

 

 

2,703

 

2023

 

 

2,611

 

Thereafter

 

 

18,690

 

Total

 

$

33,642