XML 22 R8.htm IDEA: XBRL DOCUMENT v3.10.0.1
Consolidated Statement of Changes in Retained Earnings and Accumulated Other Comprehensive Loss (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Accumulated Other Comprehensive (Loss)      
Pension and post-retirement plan adjustments, tax $ (6,325) $ 10,417 $ (1,140)