Revenue Recognition Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

Dec. 31, 2020

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

for the years ended December 31, 2021, 2020 and 2019:

	For the year ended December 31, 2021
(in thousands)	Regulated Energy		Unregulated Energy		Other and Eliminations		Total
Energy distribution
Delaware natural gas division	$	71,195	$	—	$	—	$	71,195
Florida natural gas division	34,074		—		—		34,074
FPU electric distribution	78,300		—		—		78,300
FPU natural gas distribution	100,535		—		—		100,535
Maryland natural gas division	22,449		—		—		22,449
Sandpiper natural gas/propane operations	20,746		—		—		20,746
Elkton Gas	7,105		—		—		7,105
Total energy distribution	334,404		—		—		334,404
Energy transmission
Aspire Energy	—		38,163		—		38,163
Aspire Energy Express	187		—		—		187
Eastern Shore	76,911		—		—		76,911
Peninsula Pipeline	26,630		—		—		26,630
Total energy transmission	103,728		38,163		—		141,891
Energy generation
Eight Flags	—		18,652		—		18,652
Propane operations
Propane delivery operations	—		142,082		—		142,082
Energy delivery services
Marlin Gas Services	—		8,315		—		8,315
Other and eliminations
Eliminations	(54,212)		(343)		(21,348)		(75,903)
Other	—		—		527		527
Total other and eliminations	(54,212)		(343)		(20,821)		(75,376)
Total operating revenues (1)	$	383,920	$	206,869	$	(20,821)	$	569,968

    

(1) Total operating revenues for the year ended December 31, 2021, include other revenue (revenues from sources other than contracts with customers) of $0.2 million and $0.4 million for our Regulated and Unregulated Energy segments, respectively. The sources of other revenues include revenue from alternative revenue programs related to revenue normalization for Maryland division and Sandpiper and late fees.

	For the year ended December 31, 2020
(in thousands)	Regulated Energy		Unregulated Energy		Other and Eliminations		Total
Energy distribution
Delaware natural gas division	$	63,389	$	—	$	—	$	63,389
Florida natural gas division	30,850		—		—		30,850
FPU electric distribution	76,863		—		—		76,863
FPU natural gas distribution	90,150		—		—		90,150
Maryland natural gas division	21,853		—		—		21,853
Sandpiper natural gas/propane operations	17,214		—		—		17,214
Elkton Gas	2,399		—		—		2,399
Total energy distribution	302,718		—		—		302,718
Energy transmission
Aspire Energy	—		27,951		—		27,951
Aspire Energy Express	16		—		—		16
Eastern Shore	75,117		—		—		75,117
Peninsula Pipeline	23,080		—		—		23,080
Total energy transmission	98,213		27,951		—		126,164
Energy generation
Eight Flags	—		16,147		—		16,147
Propane operations
Propane delivery operations	—		100,744		—		100,744
Energy delivery services
Marlin Gas Services	—		7,818		—		7,818
Other and eliminations
Eliminations	(48,185)		(134)		(17,602)		(65,921)
Other	—		—		528		528
Total other and eliminations	(48,185)		(134)		(17,074)		(65,393)
Total operating revenues (1)	$	352,746	$	152,526	$	(17,074)	$	488,198

(1) Total operating revenues for the year ended December 31, 2020, include other revenue (revenues from sources other than contracts with customers of $1.4 million and $0.2 million for our Regulated and Unregulated Energy segments, respectively. The sources of other revenues include revenue from alternative revenue programs related to revenue normalization for Maryland division and Sandpiper and late fees

	For the years ended December 31, 2019
(in thousands)	Regulated Energy		Unregulated Energy		Other and Eliminations		Total
Energy distribution
Delaware natural gas division	$	62,659	$	—	$	—	$	62,659
Florida natural gas division	28,485		—		—		28,485
FPU electric distribution	77,416		—		—		77,416
FPU natural gas distribution	82,418		—		—		82,418
Maryland natural gas division	22,517		—		—		22,517
Sandpiper natural gas/propane operations	19,068		—		—		19,068
Total energy distribution	292,563		—		—		292,563
Energy transmission
Aspire Energy	—		32,493		—		32,493
Aspire Energy Express	—		—		—		—
Eastern Shore	72,924		—		—		72,924
Peninsula Pipeline	16,453		—		—		16,453
Total energy transmission	89,377		32,493		—		121,870
Energy generation
Eight Flags	—		16,749		—		16,749
Propane operations
Propane delivery operations	—		109,614		—		109,614
Energy delivery services
Marlin Gas Services	—		5,702		—		5,702
Other and eliminations
Eliminations	(38,934)		(10,407)		(18,081)		(67,422)
Other	—		—		529		529
Total other and eliminations	(38,934)		(10,407)		(17,552)		(66,893)
Total operating revenues (1)	$	343,006	$	154,151	$	(17,552)	$	479,605

(1) Total operating revenues for the year ended December 31, 2019, include other revenue (revenues from sources other than contracts with customers) of $(0.1) million and $0.3 million for our Regulated and Unregulated Energy segments, respectively. The sources of other revenues include revenue from alternative revenue programs related to revenue normalization for Maryland division and Sandpiper and late fees.

Contract with Customer, Asset and Liability [Table Text Block]

The balances of our trade receivables, contract assets, and contract liabilities as of December 31, 2021 and 2020 were as follows:

	Trade Receivables		Contract Assets (Noncurrent)		Contract Liabilities (Current)
(in thousands)
Balance at 12/31/2020	$	55,600	$	4,816	$	644
Balance at 12/31/2021	56,277		4,806		747
Increase (decrease)	$	677	$	(10)	$	103

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

Revenue for these businesses for the remaining performance obligations at December 31, 2021 are expected to be recognized as follows:

(in thousands)	2022		2023		2024		2025		2026		2027 and thereafter
Eastern Shore and Peninsula Pipeline	$	33,925	$	26,334	$	24,103	$	23,231	$	21,964	$	179,866
Natural gas distribution operations	6,747		6,174		5,946		5,410		5,179		33,543
FPU electric distribution	652		652		652		275		275		550
Total revenue contracts with remaining performance obligations	$	41,324	$	33,160	$	30,701	$	28,916	$	27,418	$	213,959