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RELATED PARTY TRANSACTIONS	12 Months Ended
RELATED PARTY TRANSACTIONS	Dec. 31, 2018
RELATED PARTY TRANSACTIONS [Abstract]
RELATED PARTY TRANSACTIONS	18. RELATED PARTY TRANSACTIONS In connection with its acquisition of Power Solutions, the Company acquired a 49% interest in a joint venture in the People's Republic of China ("PRC"). The joint venture purchased raw components and other goods from the Company and sold finished goods to the Company as well as to other third parties. The Company did not purchase any inventory from the joint venture during 2017. During the fourth quarter of 2017, the Company divested its 49% interest in the joint venture in exchange for an extinguishment of an accounts payable balance of $0.5 million. As the interest in the joint venture had a carrying value of zero, a $0.5 million gain was recorded within cost of sales during 2017 related to this divestiture.