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Commitments (Tables)
12 Months Ended
Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]  
Future Contractual Obligations for Operating Leases

As of December 31, 2018, Forrester had future contractual obligations as follows for operating leases (in thousands):

 

2019

$

12,498

 

2020

 

11,762

 

2021

 

10,145

 

2022

 

8,552

 

2023

 

7,856

 

Thereafter

 

22,222

 

Total minimum lease payments

$

73,035