XML 73 R41.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Derivative Financial Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) | Mar. 31, 2015 lb
--- | ---
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 45,243,000 invest_DerivativeNonmonetaryNotionalAmount
Derivative Instruments Designated as Cash Flow Hedges [Member] |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 39,075,000 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember
Derivative Instruments Not Designated as Accounting Hedges [Member] |
Derivative [Line Items] |
Derivative, Nonmonetary Notional Amount | 6,168,000 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |