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Description of Business and Accounting Policies - Leases (Details)
12 Months Ended
Dec. 31, 2019
Equipment | Minimum  
Lessee, Lease, Description [Line Items]  
Lessee, operating and finance lease, term of contract 1 year
Equipment | Maximum  
Lessee, Lease, Description [Line Items]  
Lessee, operating and finance lease, term of contract 10 years
Property | Minimum  
Lessee, Lease, Description [Line Items]  
Lessee, operating and finance lease, term of contract 1 year
Property | Maximum  
Lessee, Lease, Description [Line Items]  
Lessee, operating and finance lease, term of contract 20 years