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v3.19.3

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Revenues: |  |  |  |
Contract operations | $ 166,197 | $ 158,664 | $ 493,110 | $ 383,732
Parts and service | 4,460 | 6,012 | 11,544 | 15,836
Related party | 5,099 | 4,271 | 15,523 | 12,807
Total revenues | 175,756 | 168,947 | 520,177 | 412,375
Costs and expenses: |  |  |  |
Cost of operations, exclusive of depreciation and amortization | 57,423 | 64,309 | 170,693 | 159,177
Selling, general, and administrative | 16,631 | 17,753 | 48,836 | 52,891
Depreciation and amortization | 57,513 | 59,403 | 173,220 | 156,943
Loss (gain) on disposition of assets | (1,975) | 1,250 | (389) | 12,328
Impairment of compression equipment |  | 2,292 | 3,234 | 2,292
Total costs and expenses | 129,592 | 145,007 | 395,594 | 383,631
Operating income | 46,164 | 23,940 | 124,583 | 28,744
Other income (expense): |  |  |  |
Interest expense, net | (32,626) | (25,443) | (94,162) | (51,125)
Other | 21 | 22 | 53 | 21
Total other expense | (32,605) | (25,421) | (94,109) | (51,104)
Net income (loss) before income tax expense (benefit) | 13,559 | (1,481) | 30,474 | (22,360)
Income tax expense (benefit) | 244 | (918) | 623 | (1,624)
Net income (loss) | 13,315 | (563) | 29,851 | (20,736)
Less: distributions on Preferred Units | (12,188) | (12,188) | (36,563) | (24,242)
Net income (loss) attributable to common and Class B unitholders' interests | $ 1,127 | $ (12,751) | $ (6,712) | $ (44,978)
Weighted average units outstanding: |  |  |  |
Distributions declared per common unit | $ 0.525 | $ 0.525 | $ 1.575 | $ 1.05
Common units |  |  |  |
Net income (loss) attributable to: |  |  |  |
Common units and Class B units | $ 2,084 | $ (8,768) | $ 1,043 | $ (33,185)
Weighted average units outstanding: |  |  |  |
Basic (in units) | 94,625 | 89,973 | 91,648 | 69,253
Diluted (in units) | 94,846 | 89,973 | 91,817 | 69,253
Basic and diluted net income (loss) per common unit and Class B Unit (in dollars per unit) | $ 0.02 | $ (0.10) | $ 0.01 | $ (0.48)
Class B Units |  |  |  |
Net income (loss) attributable to: |  |  |  |
Common units and Class B units | $ (957) | $ (3,983) | $ (7,755) | $ (11,793)
Weighted average units outstanding: |  |  |  |
Basic and diluted (in units) | 2,017 | 6,398 | 4,921 | 6,398
Basic and diluted net income (loss) per common unit and Class B Unit (in dollars per unit) | $ (0.47) | $ (0.62) | $ (1.58) | $ (1.84)

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- Definition The aggregate value of preferred unit distributions necessary to derive net income apportioned to unitholders' interests. + References No definition available. + Details
Name: | usac_PreferredUnitDistributions
Namespace Prefix: | usac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LimitedPartnersCapitalAccountByClassAxis=usac_CommonUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LimitedPartnersCapitalAccountByClassAxis=us-gaap_CapitalUnitClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |