Restructuring - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]          
Restructuring expenses $ 538 $ 1,324 $ 1,437 $ 3,572 $ 6,020
Evergreen Tank Solutions Integration          
Restructuring Cost and Reserve [Line Items]          
Restructuring expenses     700 1,800  
Wood Mobile Office Business Divesture          
Restructuring Cost and Reserve [Line Items]          
Restructuring expenses     $ 700 $ 1,800