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Leases - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2018
Sep. 30, 2019
Jan. 01, 2019
Jan. 01, 2018
Lessee, Lease, Description [Line Items]          
Cumulative effect of new accounting principle of adoption       $ (51) $ 17
Lessee, operating lease, lease not yet commenced, amount     $ 27,500    
Lessee, operating lease, lease not yet commenced, term of contract     15 years    
Rent expense $ 4,500 $ 9,000      
Equipment | Minimum          
Lessee, Lease, Description [Line Items]          
Lessee, finance lease, term of contract     12 months    
Equipment | Maximum          
Lessee, Lease, Description [Line Items]          
Lessee, finance lease, term of contract     7 years    
Manufacturing Facility | Minimum          
Lessee, Lease, Description [Line Items]          
Lessee, finance lease, term of contract     12 months    
Manufacturing Facility | Maximum          
Lessee, Lease, Description [Line Items]          
Lessee, finance lease, term of contract     25 years    
Accounting Standards Update 2016-02          
Lessee, Lease, Description [Line Items]          
Cumulative effect of new accounting principle of adoption       100  
Retained Earnings          
Lessee, Lease, Description [Line Items]          
Cumulative effect of new accounting principle of adoption       (51) $ 17
Retained Earnings | Accounting Standards Update 2016-02          
Lessee, Lease, Description [Line Items]          
Cumulative effect of new accounting principle of adoption       $ 100