XML 63 R63.htm IDEA: XBRL DOCUMENT v3.19.3
Employee Retirement Plans (Expected Return on Plan Assets) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share-based Payment Arrangement [Abstract]        
Interest cost $ 577 $ 610 $ 1,154 $ 1,220
Expected return on assets (721) (768) (1,442) (1,536)
Net periodic benefit income $ (144) $ (158) $ (288) $ (316)