Quarterly Operating Results (Unaudited) - Additional Information (Detail) (USD $)	3 Months Ended						12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]
Severance and other restructuring costs	$ 5,400,000	$ 5,900,000	$ 7,700,000	$ 800,000	$ 500,000	$ 17,400,000	$ 14,900,000
Purchase accounting effects related to acquisitions				6,600,000
Losses on the extinguishment of debt	1,600,000				1,900,000	50,600,000	1,612,000	52,450,000
Asset impairment charges					$ 3,700,000	$ 30,000,000		$ (33,676,000)	$ (2,549,000)