Equity Method Investments In Affiliates (Summarized Financial Information Of Investments On Balance Sheet) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]
Current assets	$ 0	$ 142,256
Noncurrent assets	0	101,329
Current liabilities	0	101,966
Noncurrent liabilities	$ 0	$ 0

The amount of current assets reported by an equity method investment of the entity.

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+ Details

- Definition

The amount of current liabilities reported by an equity method investment of the entity.

+ References

+ Details

- Definition

The amount of noncurrent assets reported by an equity method investment of the entity.

+ References

+ Details

- Definition

The amount of noncurrent liabilities reported by an equity method investment of the entity.

+ References

+ Details