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Segment And Geographic Information (Reconciliation Of Total Segment Income From Operations To Consolidated Income Before Income Taxes) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2010
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Sep. 30, 2010
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Jun. 30, 2010
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Mar. 31, 2010
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Segment And Geographic Information [Abstract] | |||||||||||
| Income from operations for reportable segments | $ 50,459 | $ 117,331 | $ 138,369 | $ 140,637 | $ 137,052 | $ 107,346 | $ 99,537 | $ 34,429 | $ 446,796 | $ 378,364 | $ 107,257 |
| Interest expense | (50,992) | (39,875) | (34,957) | ||||||||
| Other income, (expense), net | 5,628 | 4,471 | 6,453 | ||||||||
| Income before income taxes | $ 401,432 | $ 342,960 | $ 78,753 | ||||||||