v3.26.3
Goodwill - Schedule Of Changes In Carrying Value Of Goodwill (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Goodwill [Line Items]      
Balance at Beginning $ 307,014    
Acquisition and purchase accounting adjustments [1] 770    
Currency translation differences 170    
Balance at Ending 307,954 $ 307,014  
ESS Segment [Member]      
Goodwill [Line Items]      
Balance at Beginning 187,788    
Acquisition and purchase accounting adjustments [1] 770    
Currency translation differences 170    
Balance at Ending 188,728 187,788  
PCS Segment [Member]      
Goodwill [Line Items]      
Balance at Beginning 119,226    
Acquisition and purchase accounting adjustments [1] 0    
Currency translation differences 0    
Balance at Ending 119,226 119,226  
HMH Holding BV And Subsidiaries [Member]      
Goodwill [Line Items]      
Balance at Beginning 307,014 300,939 $ 287,848
Acquisition and purchase accounting adjustments [2]   5,456  
Acquisition and other     14,125
Currency translation differences   619 (1,034)
Balance at Ending   307,014 300,939
HMH Holding BV And Subsidiaries [Member] | ESS Segment [Member]      
Goodwill [Line Items]      
Balance at Beginning 187,788 183,585 184,619
Acquisition and purchase accounting adjustments [2]   3,584  
Acquisition and other     0
Currency translation differences   619 (1,034)
Balance at Ending   187,788 183,585
HMH Holding BV And Subsidiaries [Member] | PCS Segment [Member]      
Goodwill [Line Items]      
Balance at Beginning $ 119,226 117,354 103,229
Acquisition and purchase accounting adjustments [2]   1,872  
Acquisition and other     14,125
Currency translation differences   0 0
Balance at Ending   $ 119,226 $ 117,354
[1] ESS segment includes purchase price adjustment of $0.8 million, related to working capital measurement period adjustments for Deep Blue acquisition. See Note 2—“Business Combinations” for more information.
[2] Goodwill associated with the 2024 Drillform acquisition was assigned to PCS segment and the 2025 Deep Blue acquisition was assigned to ESS segment. The PCS segment in 2025 includes purchase price adjustment of $1.9 million, net of deferred tax assets, related to remeasurement of warranty liabilities for the Drillform acquisition. See Note 2—“Business combinations” for more information.