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CONSOLIDATED STATEMENT OF PARTNERS' CAPITAL - USD ($) $ in Thousands | Limited Partners' Capital | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest | Total
--- | --- | --- | --- | ---
Balance at beginning of period at Dec. 31, 2018 | $ 1,229,268 | $ (46,871) | $ 5,290 | $ 1,187,687
Balance at beginning of period (in units) at Dec. 31, 2018 | 128,095,511 |  |  |
Comprehensive income: |  |  |  |
Net income (loss) | $ 399,414 |  | 7,512 | 406,926
Actuarially determined long-term liability adjustments |  | (31,122) |  | (31,122)
COMPREHENSIVE INCOME (LOSS) |  |  |  | 375,804
Settlement of deferred compensation plans | $ (7,817) |  |  | (7,817)
Settlement of deferred compensation plans (in units) | 596,650 |  |  |
Purchase of units under unit repurchase program | $ (22,892) |  |  | (22,892)
Purchase of units under unit repurchase program (in units) | (1,776,564) |  |  |
Common unit-based compensation | $ 11,934 |  |  | 11,934
Distributions on deferred common unit-based compensation | (3,670) |  |  | (3,670)
Distributions from consolidated company to affiliate noncontrolling interest |  |  | (867) | (867)
Distributions to Partners | (274,755) |  |  | (274,755)
Balance at end of period at Dec. 31, 2019 | $ 1,331,482 | (77,993) | 11,935 | 1,265,424
Balance at end of period (in units) at Dec. 31, 2019 | 126,915,597 |  |  |
Comprehensive income: |  |  |  |
Net income (loss) | $ (129,220) |  | 169 | (129,051)
Actuarially determined long-term liability adjustments |  | (9,681) |  | (9,681)
COMPREHENSIVE INCOME (LOSS) |  |  |  | (138,732)
Settlement of deferred compensation plans | $ (3,800) |  |  | (3,800)
Settlement of deferred compensation plans (in units) | 279,622 |  |  |
Common unit-based compensation | $ 3,345 |  |  | 3,345
Distributions on deferred common unit-based compensation | (986) |  |  | (986)
Distributions from consolidated company to affiliate noncontrolling interest |  |  | (728) | (728)
Distributions to Partners | (50,767) |  |  | (50,767)
Other | (1,489) |  |  | (1,489)
Balance at end of period at Dec. 31, 2020 | $ 1,148,565 | (87,674) | 11,376 | $ 1,072,267
Balance at end of period (in units) at Dec. 31, 2020 | 127,195,219 |  |  | 127,195,219
Comprehensive income: |  |  |  |
Net income (loss) | $ 178,157 |  | 598 | $ 178,755
Actuarially determined long-term liability adjustments |  | 23,445 |  | 23,445
COMPREHENSIVE INCOME (LOSS) |  |  |  | 202,200
Settlement of deferred compensation plans | (1,090) |  |  | (1,090)
Common unit-based compensation | 5,709 |  |  | 5,709
Distributions on deferred common unit-based compensation | (1,280) |  |  | (1,280)
Distributions from consolidated company to affiliate noncontrolling interest |  |  | (859) | (859)
Distributions to Partners | (50,878) |  |  | (50,878)
Balance at end of period at Dec. 31, 2021 | $ 1,279,183 | $ (64,229) | $ 11,115 | $ 1,226,069
Balance at end of period (in units) at Dec. 31, 2021 | 127,195,219 |  |  | 127,195,219

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