XML 90 R75.htm IDEA: XBRL DOCUMENT v3.19.3
Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Components of Net Periodic Benefit Cost          
Service cost $ 300 $ 300 $ 749 $ 900 $ 1,200
Interest cost 348 310 1,045 931 $ 1,242
Net loss 53 133 158 399  
Net periodic pension cost $ 701 $ 743 $ 1,952 $ 2,230