Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Total revenues	$ 386,128	$ 353,398
Cost of revenues (excluding depreciation and amortization expense):
Total cost of revenues	210,456	197,566
Depreciation and amortization	77,409	78,231
Impairments and other charges	0	135
Selling, general, and administrative expense	47,552	42,563
Interest expense, net of capitalized interest of $18 in 2023 and $318 in 2022	53,899	49,481
Other (income) expense, net	2,519	2,904
Loss before taxes and discontinued operations	(5,707)	(17,482)
Provision for income taxes	3,773	4,786
Loss from continuing operations	(9,480)	(22,268)
Income (loss) from discontinued operations, net of taxes	0	173
Net loss	(9,480)	(22,095)
General partner interest in net loss	(44)	(104)
Common units interest in net loss	$ (9,436)	$ (21,991)
Basic and diluted net loss per common unit:
Loss from continuing operations per common unit, basic (in usd per share)	$ (0.07)	$ (0.16)
Loss from continuing operations per common unit, diluted (in usd per share)	(0.07)	(0.16)
Income (loss) from discontinued operations per common unit, basic (in usd per share)	0	0
Income (loss) from discontinued operations per common unit, diluted (in usd per share)	0	0
Net loss per common unit, basic (in usd per share)	(0.07)	(0.16)
Net loss per common unit, diluted (in usd per share)	$ (0.07)	$ (0.16)
Weighted average common units outstanding:
Basic (in shares)	141,900,481	141,109,230
Diluted (in shares)	141,900,481	141,109,230
Contract services
Revenues:
Total revenues	$ 284,049	$ 263,241
Cost of revenues (excluding depreciation and amortization expense):
Total cost of revenues	140,663	135,639
Aftermarket services
Revenues:
Total revenues	83,621	72,928
Cost of revenues (excluding depreciation and amortization expense):
Total cost of revenues	66,355	58,199
Equipment rentals
Revenues:
Total revenues	17,209	14,865
Cost of revenues (excluding depreciation and amortization expense):
Total cost of revenues	2,094	2,346
Equipment sales
Revenues:
Total revenues	1,249	2,364
Cost of revenues (excluding depreciation and amortization expense):
Total cost of revenues	$ 1,344	$ 1,382