Derivative Instruments and Hedging Activities - Gains (Losses) Relating to Derivative Instruments Recorded to Income (Parenthetical) (Detail) |
6 Months Ended |
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Jun. 30, 2015
USD ($)
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| Derivatives designated as hedging instruments [Member] | |
| Derivative Instruments, Gain (Loss) [Line Items] | |
| Ineffective amounts recorded for derivatives designated as hedging instruments | $ 0 |
| X | ||||||||||
- Definition Ineffective amounts recorded for derivatives designated as hedging instruments. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Details
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