Long-Lived Assets by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	$ 2,595,313		$ 1,754,099		$ 1,713,803
North America
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	1,252,938	[1]	1,074,914	[1]	1,059,623	[1]
International
Long-Lived Assets by Geographical Areas [Line Items]
Long-Lived Assets	$ 1,342,375		$ 679,185		$ 654,180

[1] Long-lived assets for the North American Region include long-lived assets attributable to the US of $1.25 billion, $1.05 billion, and $1.04 billion for 2012, 2011, and 2010, respectively.