XML 83 R68.htm IDEA: XBRL DOCUMENT v3.10.0.1
Leases - Direct Financing Lease (Details) - Direct financing lease - VOC Equipment - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Capital Leased Assets [Line Items]    
Unearned income $ 1,100,000 $ 1,900,000
Future Scheduled Payments:    
2019 1,300,000  
2020 1,300,000  
2021 1,300,000  
2022 1,300,000  
2023 600,000  
Minimum lease payments receivable $ 5,900,000 $ 7,600,000.0