Restructuring (Restructuring Charges by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost And Reserve [Line Items]
Restructuring Charges	$ 0	$ 2,411	$ 1,213
Cost of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		1,340	189
SG&A [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		1,071	1,024
Distribution [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		124	764
Distribution [Member] | Cost of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		0	0
Distribution [Member] | SG&A [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		124	764
Material Handling [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		2,252	449
Material Handling [Member] | Cost of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		1,340	189
Material Handling [Member] | SG&A [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		912	260
Corporate [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		35	0
Corporate [Member] | Cost of Sales [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		0	0
Corporate [Member] | SG&A [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Charges		$ 35	$ 0