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LEASES | 12 Months Ended
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Dec. 31, 2021
LEASES |
LEASES | 9. LEASES ​ 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 | ​
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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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- References No definition available. + Details
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