XML 69 R53.htm IDEA: XBRL DOCUMENT v3.21.1
Leases (Supplemental Balance Sheet Information) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leased Railcars [Abstract]    
Right of use asset $ 18,152 $ 56,507
Lease liability, current 11,635 14,960
Lease liability, long-term 18,549 53,766
Total operating lease liabilities $ 30,184 $ 68,726