Summary of Activities Affecting Restructuring Obligations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2012		Oct. 02, 2011	Sep. 30, 2012		Oct. 02, 2011
Balance at December 31, 2011				$ 22,196
Expense	5,655		6,812	9,929		12,297
Utilized				(22,508)
Balance at September 30, 2012	9,617	[1]		9,617	[1]
Lease Terminations [Member]
Balance at December 31, 2011				11,752
Expense				3,716
Utilized				(7,199)	[2]
Balance at September 30, 2012	8,269	[1]		8,269	[1]
Restructuring and Related Activities, Completion Date				Dec. 31, 2013
Employee Severance and Benefits [Member]
Balance at December 31, 2011				10,444
Expense				2,698
Utilized				(11,794)	[2]
Balance at September 30, 2012	1,348	[1]		1,348	[1]
Restructuring and Related Activities, Completion Date				Dec. 31, 2013
Asset impairment and other exit charges [Member]
Balance at December 31, 2011				0
Expense				3,515
Utilized				(3,515)
Balance at September 30, 2012	$ 0	[1]		$ 0	[1]

[1] The balance remaining for lease terminations is expected to be paid during the remaining terms of the leases, which extend through 2013. The balance remaining for employee severance and benefits is expected to be paid by the end of 2013.

[2] Represents cash payments.