Restructuring - (Additional Information) (Details) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Dec. 31, 2017 USD ($) Employee	Jul. 02, 2017 USD ($)	Jan. 01, 2017 USD ($)	Dec. 31, 2017 USD ($) Employee	Jan. 01, 2017 USD ($)	Mar. 31, 2017 USD ($) Employee	Mar. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)	$ 1,808		$ (1,153)	$ 4,417	$ 5,037
Restructuring costs incurred				3,883
Write-off of assets relating to restructuring charges				210	$ 1,435
Restructuring reserve	3,386			3,386		$ 2,812
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred				3,421
Restructuring reserve	3,386			3,386		2,668
Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)	75
Loss on sale of building	210
European Operations | Restructurings Related To Improving Efficiency Of Manufacturing Operations In EMEA
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)	6,568			85		1,251	$ 5,232
Restructuring costs incurred				499		3,037	$ 2,993
Other restructuring charges	407
European Operations | Restructurings Related To Improving Efficiency Of Manufacturing Operations In EMEA | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred	$ 6,161
Number of positions eliminated | Employee	130
European Operations | Restructurings Related To Improving Efficiency Related to Motive Power Assembly and Distribution Center
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)				1,610		3,104
Restructuring costs incurred				1,725		749
Write-off of assets relating to restructuring charges						$ 4,700
Expected reduction in number of employees | Employee						45
Restructuring reserve	$ 2,406			2,406
European Operations | Restructurings Related To Improving Efficiency Related To Supply Chain And General Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)				1,477
Restructuring costs incurred				1,069
Write-off of assets relating to restructuring charges				$ 3,400
Expected reduction in number of employees | Employee				50
Restructuring reserve	406			$ 406
Expected additional restructuring charges	1,900			1,900
Asia | Restructurings Related To Manufacturing Facility in Jiangdu
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)				0		$ 779
Restructuring costs incurred				129		$ 648
Asia | Restructurings Related To Manufacturing Facility in Jiangdu | Cash Charges
Restructuring Cost and Reserve [Line Items]
Write-off of assets relating to restructuring charges		$ 779
Americas | Restructurings Related To Improving Efficiencies of General Operations in the Americas
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)				960
Restructuring costs incurred				386
Write-off of assets relating to restructuring charges				$ 1,000
Expected reduction in number of employees | Employee				60
Restructuring reserve	$ 574			$ 574