Interest Expense, Net (Components Of Interest Expense, Net) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Interest income		$ 525
Interest expense		(27,377)
Total interest expense, net		(26,852)
Restated [Member]
Interest income	245
Interest expense	(26,547)
Total interest expense, net	$ (26,302)	$ (26,852)