Stockholders Equity - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended
	Aug. 31, 2012	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012	Sep. 28, 2012 August 2011 Repurchase Agreement	Mar. 29, 2013 August 2011 Repurchase Agreement	Aug. 25, 2011 August 2011 Repurchase Agreement
Shareholders Equity [Line Items]
Repurchase agreement, amount paid								$ 250
Repurchase agreement, shares received								3,849,638
Percentage of shares delivered by BofA upon execution of repurchase agreement								85.00%
Remaining initial cash payment recorded as an equity forward contract						37.5
Percentage of initial cash payment recorded as an equity forward contract						15.00%
Common stock repurchased, shares		1,400,000	1,500,000	2,900,000	1,500,000		375,449
Value of VMS common stocks received upon settlement						$ 25
Number of shares authorized to be repurchased by VMS Board of Directors	8,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased		5,100,000		5,100,000
Common stock repurchase period	September 29, 2012 through December 31, 2013