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LEASES

12 Months Ended

Dec. 31, 2021

LEASES

LEASES

9.LEASES

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The components of lease expense were as follows:

​

​	​	​	​	​	​	​	​	​	​	​
​	​	December 31,								​
​	​	2021		​	2020			2019
​	​	(in thousands)								​
​	​	​	​	​	​	​	​	​	​	​
Finance lease cost:	​	​	​	​	​	​	​	​	​	​
Amortization of right-of-use assets	​	$	597	​	$	704	​	$	14,608	​
Interest on lease liabilities	​		147	​		377	​		2,085	​
Operating lease cost	​		2,404	​		3,873	​		9,169	​
Short-term lease cost	​	​	200	​	​	84	​	​	464	​
Variable lease cost	​		1,306	​		1,375	​		1,360	​
Total lease cost	​	$	4,654	​	$	6,413	​	$	27,686	​

​

Rental expense was $3.3 million, $5.2 million and $11.0 million for the years ended December 31, 2021, 2020 and 2019 respectively.

​

Supplemental cash flow information related to leases was as follows:

​

​	​	​	​	​	​	​	​	​	​	​
​	​	December 31,								​
​	​	2021		​	2020			2019
​	​	(in thousands)								​
​	​	​	​	​	​	​	​	​	​	​
Cash paid for amounts included in the measurement of lease liabilities:	​	​	​	​	​	​	​	​	​	​
Operating cash flows for operating leases	​	$	2,367	​	$	3,870	​	$	9,124	​
Operating cash flows for finance leases	​	$	147	​	$	377	​	$	891	​
Financing cash flows for finance leases	​	$	766	​	$	8,368	​	$	46,725	​
​	​	​	​	​	​	​	​	​	​	​
Right-of-use assets obtained in exchange for lease obligations:	​	​	​	​	​	​	​	​	​	​
Operating leases	​	$	189	​	$	278	​	$	25,593	​

​

Supplemental balance sheet information related to leases was as follows:

​

​	​	​	​	​	​	​	​
​	​	December 31,					​
​	​	2021			2020		​
​	​	(in thousands)					​
Finance leases:	​	​	​	​	​	​	​
Property and equipment finance lease assets, gross	​	$	5,485	​	$	5,485	​
Accumulated depreciation	​		(4,464)	​		(3,867)	​
Property and equipment finance lease assets, net	​	$	1,021	​	$	1,618	​

​

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​	​	​	​	​	​	​	​
​	​	December 31,					​
​	​	2021			2020		​
Weighted average remaining lease term	​	​	​	​	​	​	​
Operating leases	​	​	15.5 years	​	​	13.4 years	​
Finance leases	​	​	3.5 years	​	​	3.9 years	​
​	​	​	​	​	​	​	​
Weighted average discount rate	​	​	​	​	​	​	​
Operating leases	​	​	6.0 %	​	​	6.0 %	​
Finance leases	​		7.4 %	​	​	8.0 %	​

​

Maturities of lease liabilities as of December 31, 2021 were as follows:

​

​	​	​	​	​	​	​	​
​	​	Operating leases			Finance leases		​
​	​	(in thousands)					​
​	​	​	​	​	​	​	​
2022	​	$	2,257	​	$	912	​
2023	​	​	2,073	​	​	139	​
2024	​	​	1,853	​	​	139	​
2025	​	​	1,539	​	​	139	​
2026	​	​	1,088	​	​	140	​
Thereafter	​	​	13,284	​	​	140	​
Total lease payments	​	​	22,094	​	​	1,609	​
Less imputed interest	​	​	(7,908)	​	​	(151)	​
Total	​	$	14,186	​	$	1,458	​

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