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Accumulated Other Comprehensive Income (Loss)
 6 Months Ended
Jun. 30, 2016
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Loss
Defined benefit pension and postretirement plan items, unrealized gains (losses) of our propane swap agreements, call options and natural gas futures contracts, designated as commodity contracts cash flow hedges, are the components of our accumulated comprehensive income (loss). The following tables present the changes in the balance of accumulated other comprehensive loss for the six months ended June 30, 2016 and 2015. All amounts are presented net of tax.

 
 
Defined Benefit
 
Commodity
 
 
 
 
Pension and
 
Contracts
 
 
 
 
Postretirement
 
Cash Flow
 
 
 
 
Plan Items
 
Hedges
 
Total
(in thousands)
 
 
 
 
 
 
As of December 31, 2015
 
$
(5,580
)
 
$
(260
)
 
$
(5,840
)
Other comprehensive gain before reclassifications
 
—

 
525

 
525

Amounts reclassified from accumulated other comprehensive loss
 
176

 
(29
)
 
147

Net current-period other comprehensive income
 
176

 
496

 
672

As of June 30, 2016
 
$
(5,404
)
 
$
236

 
$
(5,168
)


 
 
 
Defined Benefit
 
Commodity
 
 
 
 
Pension and
 
Contracts
 
 
 
 
Postretirement
 
Cash Flow
 
 
 
 
Plan Items
 
Hedges
 
Total
(in thousands)
 
 
 
 
 
 
As of December 31, 2014
 
$
(5,643
)
 
$
(33
)
 
$
(5,676
)
Other comprehensive loss before reclassifications
 
—

 
(1
)
 
(1
)
Amounts reclassified from accumulated other comprehensive loss
 
165

 
33

 
198

Net prior-period other comprehensive income
 
165

 
32

 
197

As of June 30, 2015
 
$
(5,478
)
 
$
(1
)
 
$
(5,479
)


The following table presents amounts reclassified out of accumulated other comprehensive loss for the three and six months ended June 30, 2016 and 2015. Deferred gains or losses for our commodity contracts cash flow hedges are recognized in earnings upon settlement.
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2016
 
2015
 
2016
 
2015
(in thousands)
 
 
 
 
 
 
 
 
Amortization of defined benefit pension and postretirement plan items:
 
 
 
 
 
 
 
 
Prior service cost (1)
 
$
20

 
$
17

 
$
40

 
$
34

Net loss (1)
 
(166
)
 
(155
)
 
(333
)
 
(310
)
Total before income taxes
 
(146
)

(138
)
 
(293
)
 
(276
)
Income tax benefit
 
58

 
55

 
117

 
111

Net of tax
 
$
(88
)
 
$
(83
)
 
$
(176
)
 
$
(165
)
 
 
 
 
 
 
 
 
 
Gains and losses on commodity contracts cash flow hedges
 
 
 
 
 
 
 
 
Propane swap agreements (2)
 
$
—

 
$
(10
)
 
$
(322
)
 
$
2

Call options (2)
 
—

 
—

 
—

 
(55
)
Natural gas futures (2)
 
211

 
—

 
359

 
—

Total before income taxes
 
211

 
(10
)
 
37

 
(53
)
Income tax benefit (expense)
 
(81
)
 
4

 
(8
)
 
21

Net of tax
 
130

 
(6
)
 
29

 
(32
)
Total reclassifications for the period
 
$
42

 
$
(89
)
 
$
(147
)
 
$
(197
)

 
(1) These amounts are included in the computation of net periodic costs (benefits). See Note 9, Employee Benefit Plans, for additional details.
(2) These amounts are included in the effects of gains and losses from derivative instruments. See Note 12, Derivative Instruments, for additional details.
Amortization of defined benefit pension and postretirement plan items is included in operations expense, and gains and losses on propane swap agreements and call options are included in cost of sales in the accompanying condensed consolidated statements of income. The income tax benefit is included in income tax expense in the accompanying condensed consolidated statements of income.