XML 42 R17.htm IDEA: XBRL DOCUMENT
v3.20.4

LEASES | 12 Months Ended
--- | ---
Dec. 31, 2020
LEASES |
LEASES | 9.LEASES ​ 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 | ​
​

X
- Definition The entire disclosure of information about leases. + References No definition available. + Details
Name: | arlp_LeaseDisclosureTextBlock
Namespace Prefix: | arlp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration