Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2019

Retirement Benefits [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, 2019 and 2018 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,	2019			2018			2019			2018			2019		2018		2019			2018			2019		2018
(in thousands)
Interest cost	$	104		$	98		$	615		$	592		$	21	$	21	$	9		$	9		$	12	$	13
Expected return on plan assets	(127		)	(138		)	(693		)	(774		)	—		—		—			—			—		—
Amortization of prior service credit	—			—			—			—			—		—		(19		)	(19		)	—		—
Amortization of net loss	101			88			129			108			26		25		12			15			—		—
Net periodic cost (benefit)	78			48			51			(74		)	47		46		2			5			12		13
Amortization of pre-merger regulatory asset	—			—			191			191			—		—		—			—			2		2
Total periodic cost	$	78		$	48		$	242		$	117		$	47	$	46	$	2		$	5		$	14	$	15

	Chesapeake Pension Plan						FPU Pension Plan						Chesapeake SERP				Chesapeake Postretirement Plan						FPU Medical Plan
For the Six Months Ended June 30,	2019			2018			2019			2018			2019		2018		2019			2018			2019		2018
(in thousands)
Interest cost	$	209		$	195		$	1,230		$	1,184		$	42	$	42	$	19		$	19		$	24	$	26
Expected return on plan assets	(254		)	(276		)	(1,386		)	(1,549		)	—		—		—			—			—		—
Amortization of prior service credit	—			—			—			—			—		—		(39		)	(39		)	—		—
Amortization of net loss	203			176			258			217			52		50		24			30			—		—
Net periodic cost (benefit)	158			95			102			(148		)	94		92		4			10			24		26
Amortization of pre-merger regulatory asset	—			—			381			381			—		—		—			—			4		4
Total periodic cost	$	158		$	95		$	483		$	233		$	94	$	92	$	4		$	10		$	28	$	30

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 and six months ended June 30, 2019 and 2018:

For the Three Months Ended June 30, 2019	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	$	—	$	—	$	—	$	(19	)	$	—	$	(19	)
Net loss	101		129		26		12			—		268
Total recognized in net periodic benefit cost	101		129		26		(7		)	—		249
Recognized from accumulated other comprehensive loss (1)	101		24		26		(7		)	—		144
Recognized from regulatory asset	—		105		—		—			—		105
Total	$	101	$	129	$	26	$	(7	)	$	—	$	249

    

For the Three Months Ended June 30, 2018	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	$	—	$	—	$	—	$	(19	)	$	—	$	(19	)
Net loss	88		108		25		15			—		236
Total recognized in net periodic benefit cost	88		108		25		(4		)	—		217
Recognized from accumulated other comprehensive loss (1)	88		21		25		(4		)	—		130
Recognized from regulatory asset	—		87		—		—			—		87
Total	$	88	$	108	$	25	$	(4	)	$	—	$	217

For the Six Months Ended June 30, 2019	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	—		—		—		(39		)	—		(39		)
Net loss	203		258		52		24			—		537
Total recognized in net periodic benefit cost	203		258		52		(15		)	—		498
Recognized from accumulated other comprehensive loss (1)	203		49		52		(15		)	—		289
Recognized from regulatory asset	—		209		—		—			—		209
Total	$	203	$	258	$	52	$	(15	)	$	—	$	498

For the Six Months Ended June 30, 2018	Chesapeake Pension Plan		FPU Pension Plan		Chesapeake SERP		Chesapeake Postretirement Plan			FPU Medical Plan		Total
(in thousands)
Prior service credit	$	—	$	—	$	—	$	(39	)	$	—	$	(39	)
Net loss	176		217		50		30			—		473
Total recognized in net periodic benefit cost	176		217		50		(9		)	—		434
Recognized from accumulated other comprehensive loss (1)	176		41		50		(9		)	—		258
Recognized from regulatory asset	—		176		—		—			—		176
Total	$	176	$	217	$	50	$	(9	)	$	—	$	434

⁽¹⁾ See Note 8, Stockholder's Equity