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v3.23.1

Segment Information (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Segment Information |
Summary of revenue and other financial information by reportable segment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Contract |  | Aftermarket |  | ​ | ​
(in thousands) |  | Operations |  | Services |  | Total
Three months ended March 31, 2023 |  | ​ |  |  | ​ |  |  | ​ |
Revenue | ​ | $ | 187,745 | ​ | $ | 42,089 | ​ | $ | 229,834
Gross margin | ​ |  | 108,263 | ​ |  | 8,181 | ​ |  | 116,444
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Three months ended March 31, 2022 | ​ |  |  | ​ |  |  | ​ |  |
Revenue | ​ | $ | 163,656 | ​ | $ | 33,545 | ​ | $ | 197,201
Gross margin | ​ |  | 99,155 | ​ |  | 4,907 | ​ |  | 104,062
​
Reconciliation of total gross margin to income before taxes | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended
​ | ​ | March 31,
(in thousands) |  | 2023 |  | 2022
Total gross margin | ​ | $ | 116,444 | ​ | $ | 104,062
Less: | ​ |  |  | ​ |  |
Selling, general and administrative | ​ |  | 26,425 | ​ |  | 27,773
Depreciation and amortization | ​ |  | 40,181 | ​ |  | 43,039
Long-lived and other asset impairment | ​ |  | 2,569 | ​ |  | 7,416
Restructuring charges | ​ | ​ | 1,047 | ​ | ​ | —
Interest expense | ​ |  | 26,581 | ​ |  | 25,246
Gain on sale of assets, net | ​ | ​ | (3,605) | ​ | ​ | (2,112)
Other expense (income), net | ​ |  | 603 | ​ |  | 36
Income before income taxes | ​ | $ | 22,643 | ​ | $ | 2,664

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 + Details
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