Revenue from Contract with Customers (Tables)

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customers

Disaggregation of Revenue

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2022		2021		2022		2021
Contract operations:
0 ― 1,000 horsepower per unit	$	40,489	$	45,918	$	82,331	$	92,837
1,001 ― 1,500 horsepower per unit		68,697		66,852		135,698		135,316
Over 1,500 horsepower per unit		56,885		50,939		111,479		101,342
Other (1)		227		156		446		404
Total contract operations revenue (2)		166,298		163,865		329,954		329,899
Aftermarket services:
Services		26,001		17,008		43,138		33,900
OTC parts and components sales		23,529		14,742		39,937		27,247
Total aftermarket services revenue (3)		49,530		31,750		83,075		61,147
Total revenue	$	215,828	$	195,615	$	413,029	$	391,046

(1) Primarily relates to fees associated with owned non-compression equipment.

(2) Includes $0.9 million and $1.4 million for the three months ended June 30, 2022 and 2021, respectively, and $1.1 million and $2.4 million for the six months ended June 30, 2022 and 2021, respectively, related to billable maintenance on owned compressors that was recognized at a point in time. All other contract operations revenue is recognized over time.

(3) Services revenue within aftermarket services is recognized over time. OTC parts and components sales revenue is recognized at a point in time.

Schedule of remaining Performance Obligation

(in thousands)	2022		2023		2024		2025		2026		2027		Total
Remaining performance obligations	$	156,370	$	93,290	$	31,041	$	4,819	$	914	$	190	$	286,624

Summary of changes in the allowance for credit losses balance

(in thousands)
Balance at December 31, 2021	$	2,152
Provision for credit losses		365
Write-offs charged against allowance		(218)
Balance at June 30, 2022	$	2,299