Quarterly report pursuant to Section 13 or 15(d)

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

v3.5.0.2
Long-Term Debt - Long-Term Debt (Parenthetical) (Detail) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2016
Dec. 31, 2015
May 09, 2013
Jul. 02, 2012
7.0% Senior Subordinated Notes Due 2022 [Member]        
Debt Instrument [Line Items]        
Stated interest rate on debt agreement 7.00% 7.00%   7.00%
Discount associated with notes $ 1.2 $ 1.3    
5.0% Senior Subordinated Notes due 2023 [Member]        
Debt Instrument [Line Items]        
Stated interest rate on debt agreement 5.00% 5.00% 5.00%  
Outstanding notes repurchased amount $ 10.7      
Repurchase amount paid in cash, plus accrued and unpaid interest related thereto $ 10.6      
2014 Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Interest rate 2.25% 2.25%    
Mortgage Notes [Member]        
Debt Instrument [Line Items]        
Discount associated with notes $ 0.1 $ 0.3    
Mortgage Notes [Member] | Minimum [Member]        
Debt Instrument [Line Items]        
Mortgage notes to finance companies-fixed rate, percentage 3.51%      
Mortgage notes to finance companies-variable rate, percentage 1.25%      
Mortgage Notes [Member] | Maximum [Member]        
Debt Instrument [Line Items]        
Mortgage notes to finance companies-fixed rate, percentage 7.03%      
Mortgage notes to finance companies-variable rate, percentage 2.80%