Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases

Schedule of operating and finance lease right-of-use assets and related lease obligations

		December 31,
Leases	Classification	2020		2019
Assets		(in thousands)
Operating lease	Operating lease assets	$	4,542	$	5,849
Finance lease	Finance lease assets *		20,544		21,880
Total leased assets		$	25,086	$	27,729
Liabilities
Current
Operating	Other current liabilities	$	2,573	$	3,144
Finance	Current portion of finance lease obligation		756		399
Noncurrent
Operating	Other long-term liabilities		1,949		2,553
Finance	Finance lease obligation		47,393		48,149
Total lease liabilities		$	52,671	$	54,245
* Finance lease assets are recorded net of accumulated depreciation of $48.4 million and include $0.7 million of prepaid financing costs as of December 31, 2020. Finance lease assets are recorded net of accumulated depreciation of $47.4 million and include $0.7 million of prepaid financing costs as of December 31, 2019. ​

Schedule of lease costs

		Year ended
		December 31,
Lease cost	Classification	2020		2019
Operating lease cost		(in thousands)
Service	Cost of revenue	$	2,402	$	2,315
Research and development	Operating expenses		491		313
Sales and marketing*	Operating expenses		1,389		1,378
General and administrative*	Operating expenses		877		788
Total operating lease cost		$	5,159	$	4,794
Finance lease cost
Depreciation of leased assets	Cost of revenue, R&D, Sales and marketing and G&A	$	1,336	$	1,348
Interest on lease liabilities	Interest expense		5,211		5,155
Total finance lease cost		$	6,547	$	6,503
Total lease cost		$	11,706	$	11,297
* Sales and marketing, general and administrative expense also includes short-term lease and variable lease costs of approximately $1.2 million and $0.9 million for the twelve months ended December 31, 2020 and 2019, respectively.

Schedule of future minimum operating and finance leases

	Finance		Operating		Total
Maturity of Lease Liabilities	Leases		Leases		Leases
	(in thousands)
2021	$	5,848	$	2,808	$	8,656
2022		5,980		1,441		7,421
2023		6,114		430		6,544
2024		6,252		118		6,370
2025		5,930		77		6,007
Thereafter		73,723		151		73,874
Total lease payments	$	103,847	$	5,025	$	108,872
Less interest portion*		(55,698)		(503)		(56,201)
Finance lease and operating lease obligations	$	48,149	$	4,522	$	52,671
* Finance lease interest calculated using the implied interest rate; operating lease interest calculated using estimated corporate borrowing rate.

Schedule of weighted-average remaining lease term and discount rates

	December 31,
Lease term and discount rate	2020
Weighted-average remaining lease term (years):
Operating leases		1.6
Finance leases		16.1
Weighted-average discount rate:
Operating leases		4.5%
Finance leases		10.5%

Schedule of cash outflows by lease type

	Year ended
	December 31,
Cash paid for amounts included in the measurement of lease liabilities	2020		2019
	(in thousands)
Operating cash outflows from operating leases	$	5,159	$	4,794
Operating cash outflows from finance leases		5,321		5,594
Financing cash outflows from finance leases		399		—
Operating lease assets obtained in exchange for operating lease liabilities		2,369		5,849
Finance lease assets obtained in exchange for new finance lease liabilities	$	—	$	—