Supplemental Disclosures of Cash Flow Information - Summary of Amount Paid (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental Cash Flow Elements [Abstract]
Interest paid	$ 81,322	$ 77,686	$ 75,653
Income taxes paid	$ 139,091	$ 89,061	$ 188,510