Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

The following table is a breakdown of our revenue by major source based on product and service type for the three months ended March 31, 2018:

	Regulated Energy			Unregulated Energy			Other and Eliminations			Total
Energy distribution
Florida natural gas division	$	5,864		$	—		$	—		$	5,864
Delaware natural gas division	32,072			—			—			32,072
FPU electric distribution	18,741			—			—			18,741
FPU natural gas distribution	23,213			—			—			23,213
Maryland natural gas division	10,672			—			—			10,672
Sandpiper	8,964			—			—			8,964
Total energy distribution	99,526			—			—			99,526
Energy transmission
Aspire Energy	—			12,077			—			12,077
Eastern Shore	15,597			—			—			15,597
Peninsula Pipeline	2,098			—			—			2,098
Total energy transmission	17,695			12,077			—			29,772
Energy generation
Eight Flags	—			4,378			—			4,378
Propane delivery
Delmarva Peninsula propane delivery	—			45,470			—			45,470
Florida propane delivery	—			6,634			—			6,634
Total propane delivery	—			52,104			—			52,104
Energy services
PESCO	—			81,559			—			81,559
Other and eliminations
Eliminations	(7,828		)	(5,245		)	(15,598		)	(28,671		)
Other	—			494			194			688
Total other and eliminations	(7,828		)	(4,751		)	(15,404		)	(27,983		)
Total operating revenues (1)	$	109,393		$	145,367		$	(15,404	)	$	239,356

⁽¹⁾ Includes other revenue (revenues from sources other than contracts with customers) of $(589,000) and $73,000 for our Regulated and Unregulated Energy segments, respectively. The sources of other revenues include revenue from alternative revenue programs related to weather normalization for Maryland division and Sandpiper and late fees.

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

The opening and closing balances of our trade receivables, contract assets, and contract liability are as follows:

	Trade Receivables			Contract Assets (Non-current)		Contract Liability (Current)
in thousands
Balance at 12/31/2017	$	74,962		$	1,270	$	407
Balance at 3/31/2018	67,828			1,305		244
Increase (decrease)	$	(7,134	)	$	35	$	(163	)