Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Net periodic benefit costs for our pension and post-retirement benefits plans for the three and six months ended June 30, 2017 and 2016 are set forth in the following tables:



	Chesapeake Pension Plan						FPU Pension Plan						Chesapeake SERP				Chesapeake Postretirement Plan						FPU Medical Plan
For the Three Months Ended June 30,	2017			2016			2017			2016			2017		2016		2017			2016			2017		2016
(in thousands)
Interest cost	$	103		$	105		$	624		$	630		$	22	$	23	$	11		$	11		$	13	$	14
Expected return on plan assets	(127		)	(131		)	(700		)	(701		)	—		—		—			—			—		—
Amortization of prior service credit	—			—			—			—			—		—		(20		)	(20		)	—		—
Amortization of net loss	106			103			131			128			22		22		17			17			—		—
Net periodic cost (benefit)	82			77			55			57			44		45		8			8			13		14
Amortization of pre-merger regulatory asset	—			—			191			191			—		—		—			—			2		2
Total periodic cost	$	82		$	77		$	246		$	248		$	44	$	45	$	8		$	8		$	15	$	16



	Chesapeake Pension Plan						FPU Pension Plan						Chesapeake SERP				Chesapeake Postretirement Plan						FPU Medical Plan
For the Six Months Ended June 30,	2017			2016			2017			2016			2017		2016		2017			2016			2017		2016
(in thousands)
Interest cost	206			$	210		1,247			$	1,259		$	44	$	46	$	21		$	21		$	26	$	28
Expected return on plan assets	(254		)	(261		)	(1,399		)	(1,402		)	—		—		—			—			—		—
Amortization of prior service credit	—			—			—			—			—		—		(39		)	(40		)	—		—
Amortization of net loss	213			206			262			257			44		44		32			34			—		—
Net periodic cost (benefit)	165			155			110			114			88		90		14			15			26		28
Amortization of pre-merger regulatory asset	—			—			381			381			—		—		—			—			4		4
Total periodic cost	$	165		$	155		$	491		$	495		$	88	$	90	$	14		$	15		$	30	$	32

Amounts Included in Regulatory asset and AOCI [Table Text Block]

The following tables present the amounts included in the regulatory asset and accumulated other comprehensive loss that were recognized as components of net periodic benefit cost during the three months ended June 30, 2017 and 2016:



For the Three Months Ended June 30, 2017	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	$	—	$	—	$	—	$	(20	)	$	—	$	(20	)
Net loss	106		131		22		17			—		276
Total recognized in net periodic benefit cost	106		131		22		(3		)	—		256
Recognized from accumulated other comprehensive loss ⁽¹⁾	106		25		22		(3		)	—		150
Recognized from regulatory asset	—		106		—		—			—		106
Total	$	106	$	131	$	22	$	(3	)	$	—	$	256



For the Three Months Ended June 30, 2016	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	$	—	$	—	$	—	$	(20	)	$	—	$	(20	)
Net loss	103		128		22		17			—		270
Total recognized in net periodic benefit cost	103		128		22		(3		)	—		250
Recognized from accumulated other comprehensive loss ⁽¹⁾	103		24		22		(3		)	—		146
Recognized from regulatory asset	—		104		—		—			—		104
Total	$	103	$	128	$	22	$	(3	)	$	—	$	250



For the Six Months Ended June 30, 2017	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	$	—	$	—	$	—	$	(39	)	$	—	$	(39	)
Net loss	213		262		44		32			—		551
Total recognized in net periodic benefit cost	213		262		44		(7		)	—		512
Recognized from accumulated other comprehensive loss ⁽¹⁾	213		50		44		(7		)	—		300
Recognized from regulatory asset	—		212		—		—			—		212
Total	$	213	$	262	$	44	$	(7	)	$	—	$	512



For the Six Months Ended June 30, 2016	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	$	—	$	—	$	—	$	(40	)	$	—	$	(40	)
Net loss	206		257		44		34			—		541
Total recognized in net periodic benefit cost	206		257		44		(6		)	—		501
Recognized from accumulated other comprehensive loss ⁽¹⁾	206		49		44		(6		)	—		293
Recognized from regulatory asset	—		208		—		—			—		208
Total	$	206	$	257	$	44	$	(6	)	$	—	$	501