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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2016
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense
The following tables provide: (a) the components of income tax expense in 2016, 2015, and 2014; (b) the reconciliation between the statutory federal income tax rate and the effective income tax rate for 2016, 2015, and 2014; and (c) the components of accumulated deferred income tax assets and liabilities at December 31, 2016 and 2015.
 
For the Year Ended December 31,
 
2016
 
2015
 
2014
(in thousands)
 
 
 
 
 
Current Income Tax Expense
 
 
 
 
 
Federal
$
(4,898
)
 
$
4,875

 
$
434

State
2,053

 
1,533

 
1,311

Other
(71
)
 
(23
)
 
(35
)
Total current income tax expense
(2,916
)
 
6,385

 
1,710

Deferred Income Tax Expense (1)
 
 
 
 
 
Property, plant and equipment
31,062

 
21,205

 
20,382

Deferred gas costs
1,163

 
(1,539
)
 
1,614

Pensions and other employee benefits
237

 
(84
)
 
537

FPU merger related premium cost and deferred gain
(572
)
 
(556
)
 
(802
)
Net operating loss carryforwards
(9
)
 
2,078

 
(112
)
Other
(624
)
 
(584
)
 
616

Total deferred income tax expense
31,257

 
20,520

 
22,235

Total Income Tax Expense
$
28,341

 
$
26,905

 
$
23,945


(1)Includes $2.1 million, $2.1 million and $2.6 million of deferred state income taxes for the years 2016, 2015 and 2014, respectively.
Summary of Reconciliation of Statutory Federal Tax and Effective Income Tax Rates
 
For the Year Ended December 31,
 
2016
 
2015
 
2014
(in thousands)
 
 
 
 
 
Reconciliation of Effective Income Tax Rates
 
 
 
 
 
Continuing Operations
 
 
 
 
 
Federal income tax expense (1)
$
22,759

 
$
23,865

 
$
21,121

State income taxes, net of federal benefit
3,422

 
3,062

 
2,946

ESOP dividend deduction
(264
)
 
(263
)
 
(267
)
Other
2,424

 
241

 
145

Total Income Tax Expense
$
28,341

 
$
26,905

 
$
23,945

Effective Income Tax Rate
38.81
%
 
39.54
%
 
39.88
%
(1) 
Federal income taxes were calculated at 35% for each year represented.

Schedule of Accumulated Deferred Income Tax Assets and Liabilities
 
As of December 31,
 
2016
 
2015
(in thousands)
 
 
 
Deferred Income Taxes
 
 
 
Deferred income tax liabilities:
 
 
 
Property, plant and equipment
$
218,074

 
$
185,448

Acquisition adjustment
14,840

 
15,490

Loss on reacquired debt
442

 
485

Deferred gas costs
1,846

 
683

Other
6,375

 
5,961

Total deferred income tax liabilities
241,577

 
208,067

Deferred income tax assets:
 
 
 
Pension and other employee benefits
6,230

 
6,570

Environmental costs
2,592

 
2,445

Net operating loss carryforwards
952

 
943

Investment tax credit carryforwards
2,643

 

Self insurance
189

 
278

Storm reserve liability
1,131

 
1,153

Other
4,946

 
4,078

Total deferred income tax assets
18,683

 
15,467

Deferred Income Taxes Per Consolidated Balance Sheets
$
222,894

 
$
192,600