Interest Expense, Net (Components Of Interest Income / (Expense)) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010	Sep. 30, 2011		Sep. 30, 2010
Interest Expense [Line Items]
Interest income	$ 127	[1]	$ 1,294	$ 1,008	[1]	$ 3,666
Interest expense	(28,250)	[1]	(27,043)	(84,344)	[1]	(81,514)
Total interest (expense), net	$ (28,123)	[1]	$ (25,749)	$ (83,336)	[1]	$ (77,848)

[1] Restated