XML 33 R34.htm IDEA: XBRL DOCUMENT
v3.20.1

PARTNERS' CAPITAL (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2020
PARTNERS' CAPITAL |
Summary of quarterly per unit distribution paid |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Payment Date |  | Per Unit Cash Distribution |  | Total Cash Distribution |
​ | ​ | ​ | ​ | ​ | (in thousands) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
February 14, 2019 | ​ | $ | 0.5300 | ​ | $ | 69,011 | ​
May 15, 2019 | ​ | ​ | 0.5350 | ​ | ​ | 69,489 | ​
August 14, 2019 | ​ | ​ | 0.5400 | ​ | ​ | 70,153 | ​
November 14, 2019 | ​ | ​ | 0.5400 | ​ | ​ | 69,772 | ​
Total | ​ | $ | 2.1450 | ​ | $ | 278,425 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
February 14, 2020 | ​ | $ | 0.4000 | ​ | $ | 51,753 | ​
Total | ​ | $ | 0.4000 | ​ | $ | 51,753 | ​
Summary of changes to Partners' Capital |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Accumulated | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Number of | ​ | Limited | ​ | Other | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Limited Partner | ​ | Partners' | ​ | Comprehensive | ​ | Noncontrolling | ​ | Total Partners’ | ​
​ |  | Units |  | Capital |  | Income (Loss) |  | Interest |  | Capital |
​ | ​ | (in thousands, except unit data) | ​
Balance at January 1, 2020 |  | 126,915,597 | ​ | $ | 1,331,482 | ​ | $ | (77,993) | ​ | $ | 11,935 | ​ | $ | 1,265,424 | ​
Comprehensive (loss) income: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net (loss) income |  | — | ​ |  | (144,783) | ​ |  | — | ​ | ​ | 76 |  |  | (144,707) | ​
Actuarially determined long-term liability adjustments |  | — | ​ |  | — | ​ |  | 938 | ​ |  | — |  |  | 938 | ​
Total comprehensive loss |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | (143,769) | ​
Settlement of deferred compensation plans | ​ | 279,622 | ​ | ​ | (1,310) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1,310) | ​
Common unit-based compensation |  | — | ​ |  | (527) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (527) | ​
Distributions on deferred common unit-based compensation |  | — | ​ |  | (986) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (986) | ​
Distributions from consolidated company to noncontrolling interest | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (288) | ​ | ​ | (288) | ​
Distributions to Partners |  | — | ​ | ​ | (50,767) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (50,767) | ​
Other | ​ | — | ​ | ​ | (273) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (273) | ​
Balance at March 31, 2020 |  | 127,195,219 | ​ | $ | 1,132,836 | ​ | $ | (77,055) | ​ | $ | 11,723 | ​ | $ | 1,067,504 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Accumulated | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Number of | ​ | Limited | ​ | Other | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Limited Partner | ​ | Partners' | ​ | Comprehensive | ​ | Noncontrolling | ​ | Total Partners’ | ​
​ |  | Units |  | Capital |  | Income (Loss) |  | Interest |  | Capital |
​ | ​ | (in thousands, except unit data) | ​
Balance at January 1, 2019 |  | 128,095,511 | ​ | $ | 1,229,268 | ​ | $ | (46,871) | ​ | $ | 5,290 | ​ | $ | 1,187,687 | ​
Comprehensive income: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income |  | — | ​ |  | 276,428 | ​ |  | — | ​ | ​ | 7,176 |  |  | 283,604 | ​
Actuarially determined long-term liability adjustments |  | — | ​ |  | — | ​ |  | (3,584) | ​ |  | — |  |  | (3,584) | ​
Total comprehensive income |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | 280,020 | ​
Settlement of deferred compensation plans |  | 596,650 | ​ |  | (7,817) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (7,817) | ​
Purchase of units under unit repurchase program |  | (300,970) | ​ |  | (5,251) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (5,251) | ​
Common unit-based compensation |  | — | ​ |  | 2,743 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,743 | ​
Distributions on deferred common unit-based compensation |  | — | ​ |  | (1,280) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1,280) | ​
Distributions from consolidated company to noncontrolling interest | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (262) | ​ | ​ | (262) | ​
Distributions to Partners |  | — | ​ | ​ | (67,731) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (67,731) | ​
Balance at March 31, 2019 |  | 128,391,191 | ​ | $ | 1,426,360 | ​ | $ | (50,455) | ​ | $ | 12,204 | ​ | $ | 1,388,109 | ​

X
- Definition Tabular disclosure of payment of cash or stock made to partners of limited partnership (LP). + References No definition available. + Details
Name: | arlp_DistributionsToPartnersByDistributionTableTextBlock
Namespace Prefix: | arlp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure related to accounts comprising partners' capital. + References No definition available. + Details
Name: | arlp_ScheduleOfPartnersCapitalAccountByClassTableTextBlock
Namespace Prefix: | arlp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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