Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

The following table displays our revenue from continuing operations by major source based on product and service type for the three months ended March 31, 2020 and 2019:

	Three months ended March 31, 2020												Three Months Ended March 31, 2019
(in thousands)	Regulated Energy			Unregulated Energy			Other and Eliminations			Total			Regulated Energy			Unregulated Energy			Other and Eliminations			Total
Energy distribution
Delaware natural gas division	$	26,567		$	—		$	—		$	26,567		$	27,549		$	—		$	—		$	27,549
Florida natural gas division	8,477			—			—			8,477			7,900			—			—			7,900
FPU electric distribution	14,219			—			—			14,219			14,378			—			—			14,378
FPU natural gas distribution	25,444			—			—			25,444			23,786			—			—			23,786
Maryland natural gas division	9,138			—			—			9,138			10,047			—			—			10,047
Sandpiper Energy natural gas/propane operations	6,292			—			—			6,292			7,082			—			—			7,082
Total energy distribution	90,137			—			—			90,137			90,742			—			—			90,742
Energy transmission
Aspire Energy	—			9,781			—			9,781			—			13,470			—			13,470
Eastern Shore	19,279			—			—			19,279			19,056			—			—			19,056
Peninsula Pipeline	4,824			—			—			4,824			3,565			—			—			3,565
Total energy transmission	24,103			9,781			—			33,884			22,621			13,470			—			36,091
Energy generation
Eight Flags	—			4,323			—			4,323			—			4,142			—			4,142
Propane operations
Propane delivery operations	—			38,282			—			38,282			—			46,125			—			46,125
Energy delivery services
Marlin Gas Services	—			1,309			—			1,309			—			2,434			—			2,434
Other	—			20			—			20			—			—			—			—
Total energy delivery services	—			1,329			—			1,329			—			2,434			—			2,434
Other and eliminations
Eliminations	(11,285		)	(25		)	(4,409		)	(15,719		)	(9,745		)	(5,496		)	(4,366		)	(19,607		)
Other	—			341			133			474			—			405			132			537
Total other and eliminations	(11,285		)	316			(4,276		)	(15,245		)	(9,745		)	(5,091		)	(4,234		)	(19,070		)
Total operating revenues (1)	$	102,955		$	54,031		$	(4,276	)	$	152,710		$	103,618		$	61,080		$	(4,234	)	$	160,464

⁽¹⁾ Total operating revenues for the three months ended March 31, 2020, include other revenue (revenues from sources other than contracts with customers) of $0.7 million and $0.1 million for our Regulated and Unregulated Energy segments, respectively, and $0.1 million and $0.1 million for our Regulated and Unregulated Energy segments, respectively, for the three months ended March 31, 2019. The sources of other revenues include revenue from alternative revenue programs related to revenue normalization for the 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 March 31, 2020 and December 31, 2019 were as follows:

	Trade Receivables			Contract Assets (Current)		Contract Assets (Non-current)		Contract Liabilities (Current)
(in thousands)
Balance at 12/31/2019	$	47,430		$	18	$	3,465	$	589
Balance at 3/31/2020	43,614			18		4,098		428
Increase (decrease)	$	(3,816	)	$	—	$	633	$	(161	)

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

Revenue for these businesses for the remaining performance obligations, at March 31, 2020, are expected to be recognized as follows:

(in thousands)	2020		2021		2022		2023		2024		2025		2026 and thereafter
Eastern Shore and Peninsula Pipeline	$	28,084	$	34,404	$	27,249	$	21,795	$	19,548	$	18,699	$	177,607
Natural gas distribution operations	2,992		4,124		5,167		4,936		4,699		4,166		32,996
FPU electric distribution	424		566		566		566		566		275		825
Total revenue contracts with remaining performance obligations	$	31,500	$	39,094	$	32,982	$	27,297	$	24,813	$	23,140	$	211,428