Leases

9 Months Ended

Sep. 30, 2020

The Company’s lease assets and related lease liabilities were as follows (in thousands):

	Balance Sheet Line Item	September 30, 2020			December 31, 2019
Assets
Finance:
Right-of-use assets - cost		$	50,220		$	49,909
Accumulated amortization			(18,192	)		(10,307	)
Finance lease right-of-use assets, net	Finance lease right-of-use assets		32,028			39,602
Operating:
Right-of-use assets - cost			2,796			2,736
Accumulated amortization			(1,554	)		(805	)
Operating lease right-of-use assets, net	Other assets		1,242			1,931
Total lease assets		$	33,270		$	41,533

Liabilities
Current:
Finance lease liabilities	Finance lease liabilities, current	$	12,311		$	12,351
Operating lease liabilities	Accrued and other current liabilities		770			983
Non-current:
Finance lease liabilities	Finance lease liabilities, non-current		28,514			37,610
Operating lease liabilities	Other long-term liabilities		472			942
Total lease liabilities		$	42,067		$	51,886

The components of lease expense were as follows (in thousands):

		Three Months Ended September 30,						Nine Months Ended September 30,
	Statement of Operations Line Item	2020			2019			2020			2019
Finance lease cost:
Amortization of right-of-use assets	Cost of goods sold; Research and development; Selling, general and administrative expenses	$	2,639		$	2,580		$	7,886		$	7,720
Interest on lease liabilities	Interest expense		462			578			1,511			1,826
Operating lease cost	Cost of goods sold; Research and development; Selling, general and administrative expenses		304			290			868			579
Sublease income	Selling, general and administrative expenses		(301	)		(310	)		(899	)		(1,135	)
Total lease cost		$	3,104		$	3,138		$	9,366		$	8,990

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

	Nine Months Ended September 30,
	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	812	$	540
Operating cash flows from finance leases		1,468		1,640
Financing cash flows from finance leases		9,254		8,810
Right-of-use assets obtained in exchange for new lease liabilities:
Finance leases		434		49,784
Operating leases	$	55	$	2,723

Lease term and discount rate were as follows:

	September 30, 2020			December 31, 2019
Weighted-average remaining lease term (years):
Finance leases		3.1			3.6
Operating leases		1.6			2.1
Weighted-average discount rate:
Finance leases		4.39	%		4.42	%
Operating leases		4.73	%		4.75	%

Maturities of lease liabilities as of September 30, 2020 are as follows (in thousands):

Year Ending	Finance Leases			Operating Leases
2020 (Remaining three month period)	$	3,542		$	245
2021		13,683			714
2022		13,883			329
2023		12,524			—
Total future lease payments		43,632			1,288
Less: Interest		(2,807	)		(46	)
Present value of lease liabilities	$	40,825		$	1,242