Registration of securities issued in business combination transactions

Long-Term Debt - Revolver (Detail)

v2.4.0.8
Long-Term Debt - Revolver (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Revolving Credit Facility [Member]
     
Debt Instrument [Line Items]      
Variation in applicable rate for LIBOR Rate Loan 2.50% 2.50%  
Variation in applicable rate for LIBOR Rate Loan 3.00% 3.00%  
Variation in applicable rate for Base Rate Loan 1.50% 1.50%  
Variation in applicable rate for Base Rate Loan 2.00% 2.00%  
Revolving loan outstanding $ 0 $ 0 $ 0
Letters of credit outstanding $ 6.0 $ 4.6 $ 4.5
Existing Credit Agreement [Member]
     
Debt Instrument [Line Items]      
Variation in applicable rate for LIBOR Rate Loan   2.75%  
Variation in applicable rate for LIBOR Rate Loan   3.25%  
Variation in applicable rate for Base Rate Loan   1.75%  
Variation in applicable rate for Base Rate Loan   2.25%