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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2021

Our lease expense comprises of the following (in thousands):

The balance sheet classification of our operating lease liabilities was as follows (in thousands):

	March 31, 2021		December 31, 2020
Operating lease liabilities:
Current portion of lease liabilities (included in other current liabilities)	$	3,356	$	3,247
Long-term portion of lease liabilities		33,795		34,789
Total operating lease liabilities	$	37,151	$	38,036

At March 31, 2021, the maturities of our sublease income and operating lease liabilities were as follows (in thousands):

Years ending December 31,	Sublease Income		Operating Lease Liabilities
2021 (remaining)	$	3,915	$	5,215
2022		5,357		6,240
2023		5,518		5,377
2024		5,684		5,521
2025		5,854		5,670
Thereafter		33,742		30,704
Total	$	60,070		58,727
Less:
Present value adjustment				(21,576	)
Total			$	37,151

The weighted average remaining lease term and the weighted average discount rate used to determine the operating lease liability were as follows:

	March 31, 2021			December 31, 2020
Weighted average remaining lease term	9.0 years			9.1 years
Weighted average discount rate		10.1	%		10.1	%