Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Geographic information (Lease revenues by individual countries) (Details)

v3.19.3.a.u2
Geographic information (Lease revenues by individual countries) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items]      
Lease revenue $ 4,682,266    
Lease revenue   $ 4,537,093 $ 4,713,802
Geographic Concentration Risk | Total Lease Revenue      
Segment Reporting Information [Line Items]      
Percentage of lease revenue 100.00% 100.00% 100.00%
China      
Segment Reporting Information [Line Items]      
Lease revenue $ 874,145    
Lease revenue   $ 639,316 $ 648,343
China | Geographic Concentration Risk | Total Lease Revenue      
Segment Reporting Information [Line Items]      
Percentage of lease revenue 18.70% 14.10% 13.80%
United States      
Segment Reporting Information [Line Items]      
Lease revenue $ 511,676    
Lease revenue   $ 528,687 $ 568,999
United States | Geographic Concentration Risk | Total Lease Revenue      
Segment Reporting Information [Line Items]      
Percentage of lease revenue 10.90% 11.60% 12.10%
Other Countries      
Segment Reporting Information [Line Items]      
Lease revenue $ 3,296,445    
Lease revenue   $ 3,369,090 $ 3,496,460
Other Countries | Geographic Concentration Risk | Total Lease Revenue      
Segment Reporting Information [Line Items]      
Percentage of lease revenue 70.40% 74.30% 74.10%