Long Term Debt (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jul. 28, 2014
Revolving Credit Facilities [Member]
Debt Instrument [Line Items]
Principal amount	$ 165.0	$ 120.0
Eurodollar Rate plus the applicable percentage	3.40%
Maturity date	Oct. 26, 2017
Term Loan [Member]
Debt Instrument [Line Items]
Principal amount	60.0
Eurodollar Rate plus the applicable percentage	3.40%
Maturity date	Oct. 26, 2017
Debt Instrument Periodic Payment Principal	$ 3.0