XML 100 R38.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Accumulated Other Comprehensive (Loss) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Equity [Abstract] |
Changes in accumulated other comprehensive income (loss) by component, net of tax | Changes in accumulated other comprehensive income (loss) by component, net of tax, were as follows:
(In thousands) | Net Gains (Losses) on Cash Flow Hedges |  | Defined Benefit Pension and Postretirement Benefits |  | Total
Balance at December 31, 2011 | $ | 121,358 |  |  | $ | (16,811 | ) |  | $ | 104,547 |
Other comprehensive income (loss) before reclassifications | 53,815 |  |  | 1,258 |  |  | 55,073 |
Amounts reclassified from accumulated other comprehensive income (loss) | (144,456 | ) |  | 8,716 |  |  | (135,740 | )
Net current-period other comprehensive income (loss) | $ | (90,641 | ) |  | $ | 9,974 |  |  | $ | (80,667 | )
Balance at December 31, 2012 | $ | 30,717 |  |  | $ | (6,837 | ) |  | $ | 23,880 |
Other comprehensive income (loss) before reclassifications | (2,720 | ) |  | 4,641 |  |  | 1,921 |
Amounts reclassified from accumulated other comprehensive income (loss) | (34,548 | ) |  | 386 |  |  | (34,162 | )
Net current-period other comprehensive income (loss) | (37,268 | ) |  | 5,027 |  |  | (32,241 | )
Balance at December 31, 2013 | $ | (6,551 | ) |  | $ | (1,810 | ) |  | $ | (8,361 | )
Other comprehensive income (loss) before reclassifications | (80,175 | ) |  | (325 | ) |  | (80,500 | )
Amounts reclassified from accumulated other comprehensive income (loss) | 86,726 |  |  | (16 | ) |  | 86,710 |
Net current-period other comprehensive income (loss) | 6,551 |  |  | (341 | ) |  | 6,210 |
Balance at December 31, 2014 | $ | — |  |  | $ | (2,151 | ) |  | $ | (2,151 | )
Schedule of amount reclassified from accumulated other comprehensive income (loss) into the Condensed Consolidated Statement of Operations | Amounts reclassified from accumulated other comprehensive income (loss) into the Consolidated Statement of Operations were as follows:
| Year Ended December 31, |  | Affected Line Item in the Condensed Consolidated Statement of Operations
(In thousands) | 2014 |  | 2013 |  | 2012 |
Net Gains (Losses) on Cash Flow Hedges |  |  |  |  |  |  |  |  |  |
Commodity contracts | $ | (143,577 | ) |  | $ | 52,733 |  |  | $ | 225,108 |  |  | Natural gas revenues
Commodity contracts | (626 | ) |  | 4,269 |  |  | 11,218 |  |  | Crude oil and condensate revenues
Defined Benefit Pension and Postretirement Benefits |  |  |  |  |  |  |  |  |  |
Amortization of prior service cost | — |  |  | — |  |  | (221 | ) |  | General and administrative expense
Amortization of net (gain) loss | 26 |  |  | (641 | ) |  | (13,906 | ) |  | General and administrative expense
| (144,177 | ) |  | 56,361 |  |  | 222,199 |  |  | Total before tax
| 57,467 |  |  | (22,199 | ) |  | (86,459 | ) |  | Tax expense
Total reclassifications for the period | $ | (86,710 | ) |  | $ | 34,162 |  |  | $ | 135,740 |  |  | Net of tax

X
- Definition Tabular disclosure of changes in accumulated other comprehensive income by component, net of tax. + References No definition available. + Details
Name: | cog_ScheduleOfAccumulatedOtherComprehensiveIncomeLossByComponentsTableTextBlock
Namespace Prefix: | cog_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration