Leases

9 Months Ended

Sep. 30, 2020

The components of the lease expense for the three and nine months ended September 30, 2020 and 2019 were as follows (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
Lease Cost	2020		2019		2020		2019
Operating lease cost	$	5,501	$	5,746	$	16,201	$	17,672
Short-term lease cost	942		396		2,702		1,616
Variable lease cost	1		—		2		4
Sublease income	—		(158)		(224)		(478)
Net lease cost	$	6,444	$	5,984	$	18,681	$	18,814

Supplemental balance sheet information related to operating leases was as follows (in thousands):


Leases	Classification	September 30, 2020		December 31, 2019
Assets
Operating lease assets	Operating lease assets	$	130,717	$	139,385

Liabilities
Current
Operating lease liabilities	Accrued liabilities	13,078		12,728
Non-current
Operating lease liabilities	Operating lease liabilities, less current portion	141,925		151,226
Total operating lease liabilities		$	155,003	$	163,954


Lease Term and Discount Rate	September 30, 2020		December 31, 2019
Weighted-average remaining lease term - operating leases (years)	9.1		9.7
Weighted-average discount rate - operating leases	5.3	%	5.3	%

Supplemental cash flow information related to operating leases was as follows (in thousands):


	Nine Months Ended September 30,
	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	16,915	$	11,758
Non-cash operating activities:
Right-of-use assets obtained in exchange for new operating lease liabilities (1)	$	1,034	$	153,048

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(1)The September 30, 2019 disclosure includes the balances recognized on January 1, 2019 on adoption of ASU No. 2016-02, Leases.

Maturities of operating lease liabilities were as follows (in thousands):


Year Ending December 31,	Operating leases
2020 (remainder)	$	4,812
2021	21,618
2022	21,619
2023	21,778
2024	23,992

Thereafter	104,794
Total lease payments	198,613
Less imputed interest	(43,610)
Present value of lease liabilities	$	155,003