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Commitments and Contingencies - Additional Information (Detail)
¥ in Millions, $ in Millions
1 Months Ended
Oct. 16, 2018
USD ($)
Director
Oct. 05, 2016
Plaintiff
Jun. 30, 2019
USD ($)
Jun. 30, 2019
CNY (¥)
Commitments And Contingencies [Line Items]        
Civil penalties amount payable | $ $ 20.0      
Number of independent directors to be appointed | Director 1      
Number of additional independent directors to be appointed | Director 2      
Letters Of Credit Outstanding Amount | $     $ 212.6  
Minimum [Member]        
Commitments And Contingencies [Line Items]        
Independent director serving period 3 years      
Maximum [Member]        
Commitments And Contingencies [Line Items]        
Lessee, operating lease, term     10 years 10 years
Lawsuit in the Court of Chancery of the State of Delaware by purported stockholders of Tesla challenging SolarCity Acquisition [Member]        
Commitments And Contingencies [Line Items]        
Number of lawsuits filed | Plaintiff   7    
Shanghai, China [Member]        
Commitments And Contingencies [Line Items]        
Lessee, operating lease, term     50 years 50 years
Capital expenditures over next five years | ¥       ¥ 14,080
Annual tax revenues to be generated end of 2023 | ¥       ¥ 2,230