Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Additional Information (Details)

v3.8.0.1
Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Goodwill $ 525,142 $ 525,780
Net of accumulated impairment losses 797,600  
Lease agreements    
Finite-Lived Intangible Assets [Line Items]    
Definite life intangibles 4,500 $ 4,700
Franchise assets    
Finite-Lived Intangible Assets [Line Items]    
Franchise assets $ 69,900