Segment Information - Depreciation and Amortization and Capital Expenditures by Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Total segment depreciation and amortization	$ 168,731	$ 138,279	$ 330,485	$ 262,030
Total equity in net income of unconsolidated investments (net of tax)	78,258	286,878	142,544	467,378
Total capital expenditures	119,628	447,614	302,252	1,026,936
Reportable Segments
Segment Reporting Information [Line Items]
Total segment depreciation and amortization	166,171	136,540	325,682	258,608
Total equity in net income of unconsolidated investments (net of tax)	60,347	283,920	120,492	463,275
Total capital expenditures	118,181	434,915	297,220	1,004,556
Reportable Segments | Energy Storage
Segment Reporting Information [Line Items]
Total segment depreciation and amortization	127,175	100,433	247,523	187,707
Total equity in net income of unconsolidated investments (net of tax)	53,851	276,037	104,696	447,571
Total capital expenditures	58,513	322,464	152,956	767,777
Reportable Segments | Specialties
Segment Reporting Information [Line Items]
Total segment depreciation and amortization	25,668	23,170	51,401	45,607
Total capital expenditures	23,734	78,169	85,959	167,314
Reportable Segments | Ketjen
Segment Reporting Information [Line Items]
Total segment depreciation and amortization	13,328	12,937	26,758	25,294
Total equity in net income of unconsolidated investments (net of tax)	6,496	7,883	15,796	15,704
Total capital expenditures	35,934	34,282	58,305	69,465
Corporate
Segment Reporting Information [Line Items]
Total segment depreciation and amortization	2,560	1,739	4,803	3,422
Total equity in net income of unconsolidated investments (net of tax)	17,911	2,958	22,052	4,103
Total capital expenditures	$ 1,447	$ 12,699	$ 5,032	$ 22,380