XML 14 R68.htm IDEA: XBRL DOCUMENT v3.19.3
Other Investments and Assets - Summary of Other Investments and Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Investments All Other Investments [Abstract]    
Cash surrender value of life insurance $ 24,060 $ 23,815
Self-insured liability receivable 9,176 9,176
Contract costs 3,175 3,461
Other mutual funds 2,933 2,517
Other 3,159 3,941
Other investments and assets $ 42,503 $ 42,910