XML 67 R49.htm IDEA: XBRL DOCUMENT v3.3.1.900
Pension Plans - Accumulated Benefit Obligations in Excess of Plan Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]    
Accumulated benefit obligation $ 34,763 $ 36,193
Fair market value of assets $ 23,136 $ 23,690