XML 108 R102.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Derivative Instruments And Hedging Activities (Derivatives Designated As Hedging Instruments) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011
--- | ---
Derivatives, Fair Value [Line Items] |
Asset derivatives designated as hedging instruments | $ 22,708
Liability derivatives designated as hedging instruments | 2,800
Other Current Assets [Member] | Oil Contract [Member] |
Derivatives, Fair Value [Line Items] |
Asset derivatives designated as hedging instruments | 8,567
Other Current Assets [Member] | Natural Gas Contracts [Member] |
Derivatives, Fair Value [Line Items] |
Asset derivatives designated as hedging instruments | 12,957
Other Assets, Net [Member] | Natural Gas Contracts [Member] |
Derivatives, Fair Value [Line Items] |
Asset derivatives designated as hedging instruments | 857
Other Assets, Net [Member] | Interest Rate Swaps [Member] |
Derivatives, Fair Value [Line Items] |
Asset derivatives designated as hedging instruments | 327
Other Liabilities [Member] | Oil Contract [Member] |
Derivatives, Fair Value [Line Items] |
Liability derivatives designated as hedging instruments | 1,712
Accrued Liabilities [Member] | Oil Contract [Member] |
Derivatives, Fair Value [Line Items] |
Liability derivatives designated as hedging instruments | 886
Accrued Liabilities [Member] | Interest Rate Swaps [Member] |
Derivatives, Fair Value [Line Items] |
Liability derivatives designated as hedging instruments | $ 202

X
- Definition Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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