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Financial Instruments And Risk Management (Balance Sheet Classification And Fair Value Of Derivative Instruments) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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Prepaid Expenses And Other Current Assets [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Currency Forward Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative assets | $ 645 | $ 789 |
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Prepaid Expenses And Other Current Assets [Member] | Cash Flow Hedges [Member] | Derivatives Designated As Hedging Instruments [Member] | Currency Forward Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative assets | 6,591 | 362 |
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Prepaid Expenses And Other Current Assets [Member] | Cash Flow Hedges [Member] | Derivatives Designated As Hedging Instruments [Member] | Currency Option Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative assets | 15 | |
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Other Non-Current Assets [Member] | Cash Flow Hedges [Member] | Derivatives Designated As Hedging Instruments [Member] | Currency Forward Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative assets | 1,117 | |
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Other Long-Term Liabilities [Member] | Cash Flow Hedges [Member] | Derivatives Designated As Hedging Instruments [Member] | Currency Forward Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative liabilities | 91 | |
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Accrued Liabilities [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Currency Forward Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative liabilities | 2,962 | 4,169 |
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Accrued Liabilities [Member] | Cash Flow Hedges [Member] | Derivatives Designated As Hedging Instruments [Member] | Currency Forward Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative liabilities | 824 | 2,732 |
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Accrued Liabilities [Member] | Cash Flow Hedges [Member] | Derivatives Designated As Hedging Instruments [Member] | Currency Option Contracts [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Fair value of derivative liabilities | $ 102 |