XML 79 R64.htm IDEA: XBRL DOCUMENT v3.20.4
Other Assets (Schedule of Other Long-term Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Other Assets Noncurrent [Abstract]      
Interest rate swaps $ 18,466 $ 1,601  
Operating leases 11,081 15,772  
Mineral rights 4,825 5,254  
Investment in company owned life insurance (COLI), net 3,328 4,157  
Real estate development costs 3,748 3,776  
Debt issuance costs 1,288 1,846  
Restricted cash   944 $ 2,802
Other 3,981 1,940  
Total other long-term assets $ 46,717 $ 35,290