Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.19.3
Leases - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Jan. 01, 2019
Dec. 31, 2018
Lessee Lease Description [Line Items]        
Operating lease right-of-use asset $ 5,831,810 $ 5,831,810   $ 0
Operating lease liability $ 5,813,201 $ 5,813,201    
Remaining term of lease 5 years 1 month 6 days 5 years 1 month 6 days    
Weighted-average incremental borrowing rate 4.22% 4.22%    
Operating lease cost $ 900,000 $ 2,900,000    
Electrical construction operation's equipment        
Lessee Lease Description [Line Items]        
Remaining term of lease 7 years 7 years    
leases with residual value guarantees $ 0 $ 0    
ASU 2016-02        
Lessee Lease Description [Line Items]        
Operating lease right-of-use asset     $ 4,300,000  
Operating lease liability     $ 4,300,000