XML 29 R17.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Stockholder's Equity - Accumulated Other Comprehensive Income (Loss) | 3 Months Ended
--- | ---
Mar. 31, 2018
Equity [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Stockholder's Equity Preferred Stock We had 2,000,000 authorized and unissued shares of preferred stock, $0.01 par value per share, as of March 31, 2018 and December 31, 2017. Shares of preferred stock may be issued from time to time, by authorization of our Board of Directors and without the necessity of further action or authorization by stockholders, in one or more series and with such voting powers, designations, preferences and relative, participating, optional or other special rights and qualifications as the Board of Directors may, in its discretion, determine. 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 other comprehensive loss. During the first quarter of 2018, we elected to early adopt ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. Accordingly, we reclassified stranded tax effects resulting from the TCJA from accumulated other comprehensive loss to retained earnings, related to our employee benefit plans and commodity contracts cash flows hedges. The following tables present the changes in the balance of accumulated other comprehensive (loss)/income for the three months ended March 31, 2018 and 2017. All amounts except the stranded tax reclassification are presented net of tax.
|  | Defined Benefit |  | Commodity |  |
|  | Pension and |  | Contracts |  |
|  | Postretirement |  | Cash Flows |  |
|  | Plan Items |  | Hedges |  | Total
(in thousands) |  |  |  |  |  |
As of December 31, 2017 |  | $ | (4,743 | ) |  | $ | 471 |  |  | $ | (4,272 | )
Other comprehensive loss before reclassifications |  | — |  |  | (2,232 | ) |  | (2,232 | )
Amounts reclassified from accumulated other comprehensive income |  | 94 |  |  | 444 |  |  | 538 |
Net current-period other comprehensive income/(loss) |  | 94 |  |  | (1,788 | ) |  | (1,694 | )
Stranded tax reclassification to retained earnings |  | (1,022 | ) |  | 115 |  |  | (907 | )
As of March 31, 2018 |  | $ | (5,671 | ) |  | $ | (1,202 | ) |  | $ | (6,873 | )
|  | Defined Benefit |  | Commodity |  |
|  | Pension and |  | Contracts |  |
|  | Postretirement |  | Cash Flows |  |
|  | Plan Items |  | Hedges |  | Total
(in thousands) |  |  |  |  |  |
As of December 31, 2016 |  | $ | (5,360 | ) |  | $ | 482 |  |  | $ | (4,878 | )
Other comprehensive income/(loss) before reclassifications |  | (9 | ) |  | 1,278 |  |  | 1,269 |
Amounts reclassified from accumulated other comprehensive income/(loss) |  | 91 |  |  | (940 | ) |  | (849 | )
Net prior-period other comprehensive income |  | 82 |  |  | 338 |  |  | 420 |
As of March 31, 2017 |  | $ | (5,278 | ) |  | $ | 820 |  |  | $ | (4,458 | )
The following table presents amounts reclassified out of accumulated other comprehensive loss for the three months ended March 31, 2018 and 2017. Deferred gains or losses for our commodity contracts cash flows hedges are recognized in earnings upon settlement.
|  | Three Months Ended
|  | March 31,
|  | 2018 |  | 2017
(in thousands) |  |  |  |
Amortization of defined benefit pension and postretirement plan items: |  |  |  |
Prior service credit (1) |  | $ | 19 |  |  | $ | 19 |
Net loss(1) |  | (149 | ) |  | (170 | )
Total before income taxes |  | (130 | ) |  | (151 | )
Income tax benefit |  | 36 |  |  | 60 |
Net of tax |  | $ | (94 | ) |  | $ | (91 | )
Gains and losses on commodity contracts cash flow hedges: |  |  |  |
Propane swap agreements (2) |  | $ | (464 | ) |  | $ | 388 |
Natural gas swaps (2) |  | (450 | ) |  | — |
Natural gas futures (2) |  | 298 |  |  | 1,150 |
Total before income taxes |  | (616 | ) |  | 1,538 |
Income tax benefit (expense) |  | 172 |  |  | (598 | )
Net of tax |  | (444 | ) |  | 940 |
Total reclassifications for the period |  | $ | (538 | ) |  | $ | 849 |
(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, call options and natural gas futures contracts are included in cost of sales in the accompanying consolidated statements of income. The income tax benefit is included in income tax expense in the accompanying consolidated statements of income.

X
- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
Name: | us-gaap_ComprehensiveIncomeNoteTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration