Leases (Tables)

6 Months Ended

Jun. 30, 2020

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

	Balance Sheet Line Item	June 30, 2020			December 31, 2019
Assets
Finance:
Right-of-use assets - cost		$	49,903		$	49,909
Accumulated amortization			(15,535	)		(10,307	)
Finance lease right-of-use assets, net	Finance lease right-of-use assets		34,368			39,602
Operating:
Right-of-use assets - cost			2,647			2,736
Accumulated amortization			(1,270	)		(805	)
Operating lease right-of-use assets, net	Other assets		1,377			1,931
Total lease assets		$	35,745		$	41,533

Liabilities
Current:
Finance lease liabilities	Finance lease liabilities, current	$	12,279		$	12,351
Operating lease liabilities	Accrued and other current liabilities		801			983
Non-current:
Finance lease liabilities	Finance lease liabilities, non-current		31,586			37,610
Operating lease liabilities	Other long-term liabilities		572			942
Total lease liabilities		$	45,238		$	51,886

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

		Three Months Ended June 30,						Six Months Ended June 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	$	2,653		$	2,571		$	5,247		$	5,140
Interest on lease liabilities	Interest expense		534			609			1,049			1,249
Operating lease cost	Cost of goods sold; Research and development; Selling, general and administrative expenses		255			163			564			289
Sublease income	Selling, general and administrative expenses		(306	)		(237	)		(598	)		(824	)
Total lease cost		$	3,136		$	3,106		$	6,262		$	5,854

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

	Six Months Ended June 30,
	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	433	$	191
Operating cash flows from finance leases		1,010		1,053
Financing cash flows from finance leases		5,992		5,850
Right-of-use assets obtained in exchange for new lease liabilities:
Finance leases		144		49,676
Operating leases	$	5	$	1,212

Lease term and discount rate were as follows:

	June 30, 2020			December 31, 2019
Weighted-average remaining lease term (years):
Finance leases		3.4			3.6
Operating leases		1.8			2.1
Weighted-average discount rate:
Finance leases		4.39	%		4.42	%
Operating leases		4.73	%		4.75	%

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

Year Ending	Finance Leases			Operating Leases
2020 (Remaining six month period)	$	7,047		$	463
2021		13,680			663
2022		13,883			305
2023		12,523			—
Total future lease payments		47,133			1,431
Less: Interest		(3,268	)		(58	)
Present value of lease liabilities	$	43,865		$	1,373