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Leases (Tables)
 3 Months Ended
Mar. 31, 2021
Leases [Abstract]  
Summary of Components of Lease Expense and Supplemental Cash Flow Information Related to Leases
The components of lease expense were as follows:
Three Months Ended March 31,
20212020
 (in thousands)
Operating lease cost$3,766 $3,371 
Short-term lease costs165 290 
Variable lease costs1,463 922 
Total lease costs$5,394 $4,583 
Supplemental cash flow information related to leases was as follows:
Three Months Ended March 31,
20212020
 (in thousands)
Cash paid for amounts included in the measurement of lease liabilities$4,147 $3,836 
ROU assets obtained in exchange for new lease obligations$152 $3,990 
Summary of Supplemental Balance Sheet Information Related to Operating Leases
Supplemental balance sheet information related to the operating leases was as follows:
As of March 31, 2021As of December 31, 2020
Weighted average remaining lease term (in years) - operating leases7.77.9
Weighted average discount rate - operating leases7.7 %7.7 %
Summary of Maturities of Operating Lease Liabilities and Future Minimum Payments under Non-cancellable Leases
Maturities of operating lease liabilities as of March 31, 2021 were as follows (in thousands):
2021 (for the remaining nine months)$11,022 
202213,880 
202314,167 
202413,461 
202512,543 
2026 and thereafter41,983 
Total lease payments$107,056 
Less: imputed interest(24,329)
Total$82,727