XML 128 R95.htm IDEA: XBRL DOCUMENT v3.10.0.1
Qualified Employee Benefit Plans - Amounts Included in Accumulated Other Comprehensive Income (Loss) (Details) - Retirement Plan - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]    
Unrecognized net loss from experience different from that assumed and effects of changes and assumptions $ (47,603) $ (49,473)
Prior service cost (755) (779)
Pension and other postretirement benefit plans, accumulated other comprehensive loss, before tax (48,358) (50,252)
Income tax benefit 201 408
Accumulated other comprehensive loss $ (48,157) $ (49,844)