Annual report pursuant to Section 13 and 15(d)

Intangible Assets and Goodwill - Additional Information (Details)

v3.10.0.1
Intangible Assets and Goodwill - Additional Information (Details)
 12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
store
Finite-Lived Intangible Assets [Line Items]      
Goodwill impairment $ 0 $ 900,000  
Definite lived intangible assets, amortization expense $ 600,000 600,000 $ 600,000
Lease Agreements      
Finite-Lived Intangible Assets [Line Items]      
Weighted-average amortization period 18 years    
Franchise assets      
Finite-Lived Intangible Assets [Line Items]      
Indefinite life Intangible asset, impairment charge $ 2,100,000 3,600,000  
Franchise assets | Discontinued operations      
Finite-Lived Intangible Assets [Line Items]      
Goodwill impairment   900,000  
Number of stores | store     2
Franchise assets | Continuing operations      
Finite-Lived Intangible Assets [Line Items]      
Indefinite life Intangible asset, impairment charge $ 2,100,000 $ 3,600,000