Tax Net Operating Loss Tax Effected and Credit Carryforwards (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2012
Operating Loss Carryforwards [Line Items]
Tax net operating loss (tax effected) and credit carryforwards	229.6
U.S. Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Tax net operating loss (tax effected) and credit carryforwards	179.1
U.S. Capital Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Tax net operating loss (tax effected) and credit carryforwards	0.4
State Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Tax net operating loss (tax effected) and credit carryforwards	20.1
State Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Tax net operating loss (tax effected) and credit carryforwards	13.8
Foreign Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Tax net operating loss (tax effected) and credit carryforwards	13.2
Foreign Net Operating Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Tax net operating loss (tax effected) and credit carryforwards	3.0
Minimum | U.S. Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2016
Minimum | U.S. Capital Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2016
Minimum | State Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2013
Minimum | State Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	no expiration
Minimum | Foreign Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2013
Minimum | Foreign Net Operating Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	no expiration
Maximum | U.S. Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2032
Maximum | U.S. Capital Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2016
Maximum | State Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2032
Maximum | Foreign Net Operating Loss And Credit Carryforwards
Operating Loss Carryforwards [Line Items]
Years of expiration	2031