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Leases - Narrative (Details) - USD ($)
3 Months Ended
Jan. 01, 2019
Mar. 31, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]      
Total ending right of use asset - net:   $ 39,391,000 $ 0
Property and equipment, net   35,952,000 $ 82,933,000
Operating lease, impairment loss   $ 500,000  
Accounting Standards Update 2016-02      
Lessee, Lease, Description [Line Items]      
Total ending right of use asset - net: $ 39,391,000    
Lease liabilities 41,465,000    
Lease, right-of-use assets (liabilities), net 2,100,000    
Cumulative effect of new accounting principle in period of adoption 159,000    
Property and equipment, net 1,000,000    
Operating lease, impairment loss 500,000    
Deferred income tax assets, net 300,000    
Accounting Standards Update 2016-02 | Retained Earnings      
Lessee, Lease, Description [Line Items]      
Cumulative effect of new accounting principle in period of adoption $ 159,000