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Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables depict the disaggregation of revenue, including intercompany revenue, from contracts with customers by customer type and timing of revenue recognition for each of the reportable segments for the three months ended March 31, 2021 and 2020. Sales tax and other similar taxes are excluded from revenues.

Three Months Ended March 31, 2021			Electric Utilities			Gas Utilities			Power Generation			Mining			Inter-company Revenues			Total
Customer types:			(in thousands)
Retail			$	198,500		$	341,605		$	—		$	14,083		$	(7,107)		$	547,081
Transportation			—			47,951			—			—			(110)			47,841
Wholesale			5,922			—			28,692			—			(24,451)			10,163
Market - off-system sales			7,656			73			—			—			(2,884)			4,845
Transmission/Other			15,193			10,390			—			—			(5,296)			20,287
Revenue from contracts with customers			$	227,271		$	400,019		$	28,692		$	14,083		$	(39,848)		$	630,217
Other revenues			137			2,500			471			589			(482)			3,215
Total revenues			$	227,408		$	402,519		$	29,163		$	14,672		$	(40,330)		$	633,432
Timing of revenue recognition:
Services transferred at a point in time			$	—		$	—		$	—		$	14,083		$	(7,107)		$	6,976
Services transferred over time			227,271			400,019			28,692			—			(32,741)			623,241
Revenue from contracts with customers			$	227,271		$	400,019		$	28,692		$	14,083		$	(39,848)		$	630,217

Three Months Ended March 31, 2020			Electric Utilities			Gas Utilities			Power Generation			Mining			Inter-company Revenues			Total
Customer Types:
Retail			$	148,640		$	298,247		$	—		$	14,403		$	(7,839)		$	453,451
Transportation			—			44,108			—			—			(139)			43,969
Wholesale			5,552			—			25,467			—			(23,612)			7,407
Market - off-system sales			4,867			138			—			—			(2,639)			2,366
Transmission/Other			14,857			12,572			—			—			(4,413)			23,016
Revenue from contracts with customers			$	173,916		$	355,065		$	25,467		$	14,403		$	(38,642)		$	530,209
Other revenues			223			5,708			499			802			(391)			6,841
Total Revenues			$	174,139		$	360,773		$	25,966		$	15,205		$	(39,033)		$	537,050
Timing of Revenue Recognition:
Services transferred at a point in time			$	—		$	—		$	—		$	14,403		$	(7,839)		$	6,564
Services transferred over time			173,916			355,065			25,467			—			(30,803)			523,645
Revenue from contracts with customers			$	173,916		$	355,065		$	25,467		$	14,403		$	(38,642)		$	530,209

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

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- References

No definition available.

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