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Leases (Tables)
 12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Lease cost
The following table summarizes the components of lease expense for the year ended December 31, 2019 (in thousands):
 
 
Year Ended
 
 
December 31, 2019
Operating lease cost
 
$
4,768

Short-term lease cost
 
815

Variable lease cost
 
1,242

Sublease income
 
(336
)
    Total lease cost
 
$
6,489
Lease assets and liabilities
The following table summarizes the presentation in our consolidated balance sheet of our operating leases (in thousands):
 
 
 
 As of December 31, 2019
Assets:
 
 
 
Operating lease right-of-use assets
 
$
8,886

 
 
 
 
Liabilities:
 
 
 
Operating lease liabilities
 
$
5,301

 
Long-term operating lease liabilities
 
8,238

 
Total operating lease liabilities
 
$
13,539

 
 
 
 
Weighted average remaining lease term (years)
 
3.42

Weighted average discount rate
 
4.4
%
 
 
 
 
Lease liability maturity
Maturities of lease liabilities were as follows (in thousands):
Years ending December 31,
 
2020
$
5,440

2021
3,790

2022
2,426

2023
1,927

2024
1,038

Thereafter
—

    Total lease payments
14,621

Less interest
(1,082
)
    Present value of operating lease liabilities
$
13,539