Segment financial information (Tables)

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

Schedule of segment financial information

(in thousands)	Electric utility		Bank		Other		Total
Three months ended June 30, 2022
Revenues from external customers	$	818,873	$	75,324	$	1,410	$	895,607
Intersegment revenues (eliminations)	—		—		—		—
Revenues	$	818,873	$	75,324	$	1,410	$	895,607
Income (loss) before income taxes	$	56,613	$	22,109	$	(12,505)	$	66,217
Income taxes (benefit)	11,979		4,643		(3,419)		13,203
Net income (loss)	44,634		17,466		(9,086)		53,014
Preferred stock dividends of subsidiaries	499		—		(26)		473
Net income (loss) for common stock	$	44,135	$	17,466	$	(9,060)	$	52,541
Six months ended June 30, 2022
Revenues from external customers	$	1,527,661	$	150,439	$	2,575	$	1,680,675
Intersegment revenues (eliminations)	4		—		(4)		—
Revenues	$	1,527,665	$	150,439	$	2,571	$	1,680,675
Income (loss) before income taxes	$	116,059	$	52,324	$	(14,686)	$	153,697
Income taxes (benefit)	24,517		10,988		(4,462)		31,043
Net income (loss)	91,542		41,336		(10,224)		122,654
Preferred stock dividends of subsidiaries	998		—		(52)		946
Net income (loss) for common stock	$	90,544	$	41,336	$	(10,172)	$	121,708
Total assets (at June 30, 2022)	$	6,686,996	$	9,214,865	$	99,882	$	16,001,743
Three months ended June 30, 2021
Revenues from external customers	$	601,869	$	77,260	$	1,128	$	680,257
Intersegment revenues (eliminations)	10		—		(10)		—
Revenues	$	601,879	$	77,260	$	1,118	$	680,257
Income (loss) before income taxes	$	53,898	$	39,992	$	(10,946)	$	82,944
Income taxes (benefit)	11,498		9,708		(2,607)		18,599
Net income (loss)	42,400		30,284		(8,339)		64,345
Preferred stock dividends of subsidiaries	499		—		(26)		473
Net income (loss) for common stock	$	41,901	$	30,284	$	(8,313)	$	63,872
Six months ended June 30, 2021
Revenues from external customers	$	1,166,724	$	154,391	$	2,088	$	1,323,203
Intersegment revenues (eliminations)	19		—		(19)		—
Revenues	$	1,166,743	$	154,391	$	2,069	$	1,323,203
Income (loss) before income taxes	$	108,988	$	77,094	$	(22,942)	$	163,140
Income taxes (benefit)	22,731		17,254		(6,021)		33,964
Net income (loss)	86,257		59,840		(16,921)		129,176
Preferred stock dividends of subsidiaries	998		—		(52)		946
Net income (loss) for common stock	$	85,259	$	59,840	$	(16,869)	$	128,230
Total assets (at December 31, 2021)	$	6,491,625	$	9,181,603	$	149,409	$	15,822,637