|
Derivative Instruments (Narrative) (Details) (USD $)
|
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2011
|
Mar. 31, 2010
|
Dec. 31, 2010
|
|
| Derivative [Line Items] | |||
| Net foreign currency derivative assets included on balance sheet | $ 13,200,000 | $ 16,400,000 | |
| Net gains on derivatives not designated as hedging instruments | 200,000 | 600,000 | |
|
Foreign Exchange [Member] | Cash Flow Hedging [Member]
|
|||
| Derivative [Line Items] | |||
| Aggregate cash flow hedges outstanding | 245,200,000 | ||
| Singapore dollars | 132,800,000 | ||
| British pounds | 95,700,000 | ||
| Mexican pesos | 8,400,000 | ||
| Other currencies | 8,300,000 | ||
|
Foreign Exchange [Member] | Not Designated [Member]
|
|||
| Derivative [Line Items] | |||
| Australian dollars | 11,800,000 | ||
| Swiss francs | 5,800,000 | ||
| Indonesian rupiahs | 4,000,000 | ||
| Other currencies | 8,700,000 | ||
| Aggregate derivatives not designated as hedging instruments outstanding | $ 30,300,000 | ||