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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2021

Commitments And Contingencies Disclosure [Abstract]

Summary of Operating Lease Expense

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

		Three Months Ended September 30,								Nine Months Ended September 30,
		2021				2020				2021				2020
Operating lease expense		$	1,535			$	1,550			$	4,665			$	4,703

Summary of Balance Sheet Classification of Operating Lease Liabilities

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

		September 30, 2021				December 31, 2020
Operating lease liabilities:
Current portion of lease liabilities (included in other current liabilities)		$	2,889			$	3,247
Long-term portion of lease liabilities			34,929				34,789
Total operating lease liabilities		$	37,818			$	38,036

Summary of Maturities of Sublease Income and Operating Lease Liabilities

At September 30, 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)		$	1,324			$	1,768
2022			5,357				6,186
2023			5,518				5,652
2024			5,684				5,796
2025			5,854				5,945
Thereafter			33,742				34,444
Total		$	57,479				59,791
Less:
Present value adjustment							(21,973	)
Total						$	37,818

Summary of Weighted Average Remaining Lease Term and Weighted Average Discount Rate

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

		September 30, 2021				December 31, 2020
Weighted average remaining lease term		9.2 years				9.1 years
Weighted average discount rate			10.1	%			10.1	%

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Sublease income and operating lease liability maturity.

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- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

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Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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