INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 19, 2014 Power Solutions [Member]
Components of inventories [Abstract]
Raw materials	$ 48,873	$ 29,428
Work in progress	12,261	8,783
Finished goods	37,572	31,808
Inventories	98,706	70,019
Inventory [Line Items]
Book value of inventory acquired from power solutions	$ 33,400		$ 33,156	[1]

[1] The determination of fair value related to the inventory acquired was still in progress as of the date of this filing. The amount above represents only the carrying value of the inventory on Power Solutions’ balance sheet as of the acquisition date.