Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Assets or Liabilities Measured at Fair Value on a Non-Recurring Basis (Detail)

v3.6.0.2
Fair Value Measurements - Assets or Liabilities Measured at Fair Value on a Non-Recurring Basis (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Total Gain (loss) on goodwill $ 0 $ (2,445,000)
Fair Value, Measurements, Nonrecurring [Member]    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Long-lived assets held and used 1,010,380,000  
Goodwill 472,437,000  
Franchise assets 74,900,000  
Total Gain (loss) on long-lived assets held and used (8,063,000)  
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Long-lived assets held and used 1,010,380,000  
Goodwill 472,437,000  
Franchise assets $ 74,900,000