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LEASES

12 Months Ended

Dec. 31, 2020

LEASES

LEASES

9.LEASES

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The components of lease expense were as follows:

​

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

​

Rental expense was $5.2 million, $11.0 million and $14.9 million for the years ended December 31, 2020, 2019 and 2018, respectively.

​

Supplemental cash flow information related to leases was as follows:

​

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

​

Supplemental balance sheet information related to leases was as follows:

​

​	​	​	​	​	​	​	​
​	​	December 31,					​
​	​	2020			2019
​	​	(in thousands)					​
Finance leases:	​	​	​	​	​	​	​
Property and equipment finance lease assets, gross	​	$	5,485	​	$	30,610	​
Accumulated depreciation	​		(3,867)	​		(20,564)	​
Property and equipment finance lease assets, net	​	$	1,618	​	$	10,046	​

​

​

​	​	​	​	​	​	​	​
​	​	December 31,					​
​	​	2020			2019		​
Weighted average remaining lease term	​	​	​	​	​	​	​
Operating leases	​	​	13.4 years	​	​	13.1 years	​
Finance leases	​	​	3.9 years	​	​	1.6 years	​
​	​	​	​	​	​	​	​
Weighted average discount rate	​	​	​	​	​	​	​
Operating leases	​	​	6.0 %	​	​	6.0 %	​
Finance leases	​		8.0 %	​	​	6.0 %	​

​

Maturities of lease liabilities as of December 31, 2020 were as follows:

​

​	​	​	​	​	​	​	​
​	​	Operating leases			Finance leases		​
​	​	(in thousands)					​
​	​	​	​	​	​	​	​
2021	​	$	2,346	​	$	912	​
2022	​	​	2,245	​	​	912	​
2023	​	​	2,061	​	​	139	​
2024	​	​	1,841	​	​	139	​
2025	​	​	1,527	​	​	139	​
Thereafter	​	​	11,838	​	​	280	​
Total lease payments	​	​	21,858	​	​	2,521	​
Less imputed interest	​	​	(6,926)	​	​	(297)	​
Total	​	$	14,932	​	$	2,224	​

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The entire disclosure of information about leases.

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