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Note 8 - Business Segments (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

		Electricity				Product				Energy Storage				Consolidated
		(Dollars in thousands)
Three Months Ended June 30, 2023:
Revenues from external customers:
United States ⁽¹⁾		$	106,209			$	2,253			$	6,014			$	114,476
Foreign⁽²⁾			49,115				31,205				—				80,320
Net revenue from external customers			155,324				33,458				6,014				194,796
Intersegment revenues ⁽⁴⁾			—				12,918				—				—
Operating income (loss)			28,661				(2,297	)			(2,140	)			24,224
Segment assets at period end ^{(3) (*)}			4,576,437				182,437				251,770				5,010,644
* Including unconsolidated investments			126,451				—				—				126,451

Three Months Ended June 30, 2022:
Revenues from external customers:
United States ⁽¹⁾		$	105,193			$	1,134			$	7,491			$	113,818
Foreign⁽²⁾			46,002				9,258				—				55,260
Net revenue from external customers			151,195				10,392				7,491				169,078
Intersegment revenues ⁽⁴⁾			—				22,097				—				—
Operating income (loss)			40,466				(2,276	)			417				38,607
Segment assets at period end^{(3) (*)}			4,222,340				122,221				197,415				4,541,976
* Including unconsolidated investments			114,699				—				—				114,699

Six Months Ended June 30, 2023:
Revenues from external customers:
United States ⁽¹⁾		$	228,620			$	3,694			$	10,894			$	243,208
Foreign ⁽²⁾			97,014				39,806				—				136,820
Net revenue from external customers			325,634				43,500				10,894				380,028
Intersegment revenues ⁽⁴⁾			—				20,690				—				—
Operating income (loss)			85,669				(3,802	)			(4,477	)			77,390
Segment assets at period end⁽³⁾ (*)			4,576,437				182,437				251,770				5,010,644
* Including unconsolidated investments			126,451				—				—				126,451

Six Months Ended June 30, 2022:
Revenues from external customers:
United States ⁽¹⁾		$	221,302			$	1,669			$	14,048			$	237,019
Foreign ⁽²⁾			92,418				23,351				—				115,769
Net revenue from external customers			313,720				25,020				14,048				352,788
Intersegment revenues ⁽⁴⁾			—				43,000				—				—
Operating income (loss)			88,041				(3,851	)			(505	)			83,685
Segment assets at period end ⁽³⁾ (*)			4,222,340				122,221				197,415				4,541,976
* Including unconsolidated investments			114,699				—				—				114,699

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

		Three Months Ended June 30,								Six Months Ended June 30,
		2023				2022				2023				2022
		(Dollars in thousands)								(Dollars in thousands)
Revenues:
Total segment revenues		$	194,796			$	169,078			$	380,028			$	352,788
Intersegment revenues			12,918				22,097				20,690				43,000
Elimination of intersegment revenues			(12,918	)			(22,097	)			(20,690	)			(43,000	)
Total consolidated revenues		$	194,796			$	169,078			$	380,028			$	352,788

Operating income:
Operating income		$	24,224			$	38,607			$	77,390			$	83,685
Interest income			4,942				179				6,793				521
Interest expense, net			(24,393	)			(20,418	)			(48,024	)			(41,499	)
Derivatives and foreign currency transaction gains (losses)			(1,272	)			(3,998	)			(3,209	)			(3,738	)
Income attributable to sale of tax benefits			14,979				9,527				27,545				17,232
Other non-operating income (expense), net			79				(1,260	)			139				(1,185	)
Total consolidated income before income taxes and equity in income of investees		$	18,559			$	22,637			$	60,634			$	55,016