Total Debt (Parenthetical) (Detail)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Senior Secured Credit Facility [Member] | Term A due on April 17, 2018 [Member]
Debt Instrument [Line Items]
Debt, maturity date	Apr. 17, 2018	Apr. 17, 2018
Margin interest rate	2.50%
Senior Secured Credit Facility [Member] | Term B due on April 17, 2020 [Member]
Debt Instrument [Line Items]
Debt, maturity date	Apr. 17, 2020	Apr. 17, 2020
Senior Secured Credit Facility [Member] | LIBOR Floor [Member] | Term B due on April 17, 2020 [Member]
Debt Instrument [Line Items]
Margin interest rate	0.75%	0.75%
Senior Secured Credit Facility [Member] | Applicable Margin [Member] | Term B due on April 17, 2020 [Member]
Debt Instrument [Line Items]
Margin interest rate	2.75%	2.75%
Senior Secured Revolving Credit Facility paying interest at a variable interest rate [Member] | Expiring on April 17, 2018 [Member]
Debt Instrument [Line Items]
Debt, maturity date	Apr. 17, 2018	Apr. 17, 2018