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Leases - Additional Information (Details)
 3 Months Ended
Mar. 31, 2019
USD ($)
office
Dec. 31, 2018
USD ($)
Lessee, Lease, Description [Line Items]    
Operating Lease, Right-of-Use Asset $ 171,224,000 $ 0
Operating Lease Right-of-use Asset Accumulated Amortization $ 6,797,000 0
Weighted average remaining lease term (years) 8 years 9 months 3 days  
Weighted average discount rate 7.94%  
Lessee, Operating Lease, Lease Not Yet Commenced, Liability $ 11,900,000  
Present value of lease liabilities $ 212,970,000 $ 0
Minimum [Member]    
Lessee, Lease, Description [Line Items]    
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract 2 years  
Maximum [Member]    
Lessee, Lease, Description [Line Items]    
Lease Expiration Date Dec. 31, 2034  
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract 13 years  
UNITED STATES    
Lessee, Lease, Description [Line Items]    
Number of Stores | office 94  
Real Estate [Member]    
Lessee, Lease, Description [Line Items]    
Operating Lease, Right-of-Use Asset $ 168,200,000  
Operating Lease Right-of-use Asset Accumulated Amortization 6,300,000  
Present value of lease liabilities 210,000,000  
Equipment [Member]    
Lessee, Lease, Description [Line Items]    
Operating Lease, Right-of-Use Asset 3,000,000  
Operating Lease Right-of-use Asset Accumulated Amortization 465,000  
Present value of lease liabilities $ 3,000,000