Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Long-Term Debt (Parenthetical) (Detail)

v2.4.0.8
Long-Term Debt - Long-Term Debt (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Interest on notes 5.00%  
7.0% Senior Subordinated Notes Due 2022 [Member]
   
Debt Instrument [Line Items]    
Discount associated with notes $ 1.6 $ 1.6
Interest on notes 7.00% 7.00%
5.0% Senior Subordinated Notes due 2023 [Member]
   
Debt Instrument [Line Items]    
Interest on notes 5.00% 5.00%
Notes Payable to Finance Company [Member]
   
Debt Instrument [Line Items]    
Premium associated with notes 0.3 0.4
Mortgage Notes Payable [Member]
   
Debt Instrument [Line Items]    
Discount associated with notes $ 0.5 $ 0.6
Minimum [Member] | Notes Payable to Finance Company [Member]
   
Debt Instrument [Line Items]    
Interest on notes 9.52%  
Minimum [Member] | Mortgage Loan at Fix Interest Rate [Member]
   
Debt Instrument [Line Items]    
Interest on notes 3.51%  
Minimum [Member] | Mortgage Loan at Variable Interest Rate [Member]
   
Debt Instrument [Line Items]    
Interest on notes 1.25%  
Maximum [Member] | Notes Payable to Finance Company [Member]
   
Debt Instrument [Line Items]    
Interest on notes 10.52%  
Maximum [Member] | Mortgage Loan at Fix Interest Rate [Member]
   
Debt Instrument [Line Items]    
Interest on notes 7.03%  
Maximum [Member] | Mortgage Loan at Variable Interest Rate [Member]
   
Debt Instrument [Line Items]    
Interest on notes 3.50%  
Weighted Average [Member] | Notes Payable to Finance Company [Member]
   
Debt Instrument [Line Items]    
Interest on notes 10.19%  
2011 Revolving Credit Facility [Member]
   
Debt Instrument [Line Items]    
Interest rate 2.00% 2.00%