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Segments (Tables)
3 Months Ended
Mar. 31, 2024
Segment Information  
Summary of revenue and other financial information by reportable segment

    

Contract

    

Aftermarket

    

(in thousands)

    

Operations

    

Services

    

Total

Three months ended March 31, 2024

 

  

 

  

 

  

Revenue

$

223,051

$

45,437

$

268,488

Gross margin

 

145,308

 

10,437

 

155,745

Three months ended March 31, 2023

 

  

 

  

 

  

Revenue

$

187,745

$

42,089

$

229,834

Gross margin

 

108,263

 

8,181

 

116,444

Reconciliation of total gross margin to income before taxes

    

Three Months Ended

March 31, 

(in thousands)

    

2024

    

2023

Total gross margin

$

155,745

$

116,444

Less:

 

  

 

  

Selling, general and administrative

 

31,665

 

26,425

Depreciation and amortization

 

42,835

 

40,181

Long-lived and other asset impairment

 

2,568

 

2,569

Restructuring charges

1,047

Interest expense

 

27,334

 

26,581

Gain on sale of assets, net

(2,381)

(3,605)

Other (income) expense, net

 

139

 

603

Income before income taxes

$

53,585

$

22,643