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COMMITMENTS AND CONTINGENCIES (Tables)
 3 Months Ended
Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Components of Lease
The components of lease expense are presented as follows:
Three Months Ended
March 31,
20212020
(In thousands)
Operating lease costs$1,631 $1,222 
The components of lease liabilities are presented as follows:
March 31,
2021		December 31,
2020
(In thousands)
Operating lease liabilities, current (Accrued liabilities)
$4,772 $4,542 
Operating lease liabilities, noncurrent (Other liabilities)
13,899 15,209 
Total operating lease liabilities
$18,671 $19,751 
Supplemental lease information:
Weighted average remaining lease term
6.3 years6.4 years
Weighted average discount rate
7.6%7.7%
Supplemental cash flow and other information related to operating leases, are as follows:
Three Months Ended
March 31,
20212020
(In thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases
$1,361 $1,014 
Non-cash investing activities:
Lease liabilities arising from obtaining right-of-use assets
$— $2,941 
Schedule of Future Minimum Rental Payments for Operating Leases
Undiscounted cash flows of operating lease liabilities as of March 31, 2021 are as follows:
Lease Amounts
(In thousands)
Year:
2021 (remaining nine months)$4,457 
20224,660 
20234,038 
20243,053 
20252,262 
2026 and thereafter3,957 
Total lease payments
22,427 
Less: imputed lease interest
(3,756)
Total lease liabilities
$18,671