Goodwill and Other Intangibles - Changes in Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Balance at beginning of period	$ 1,629,729
Foreign currency translation adjustments	(28,791)
Balance at end of period	1,600,938
Ketjen
Goodwill [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	6,800	$ 6,800
Reportable Segments | Energy Storage
Goodwill [Roll Forward]
Balance at beginning of period	1,424,484
Foreign currency translation adjustments	(22,719)
Balance at end of period	1,401,765
Reportable Segments | Specialties
Goodwill [Roll Forward]
Balance at beginning of period	32,639
Foreign currency translation adjustments	(51)
Balance at end of period	32,588
Reportable Segments | Ketjen
Goodwill [Roll Forward]
Balance at beginning of period	172,606
Foreign currency translation adjustments	(6,021)
Balance at end of period	$ 166,585