ACQUISITIONS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified				0 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Aug. 22, 2013 Globe Motors	Aug. 22, 2013 Globe Motors Customer lists	Aug. 22, 2013 Globe Motors Trade name	Dec. 31, 2013 Globe Motors Trade name
ACQUISITIONS
Cash consideration paid				$ 90,000
Cash paid for acquisition				4,300
Transaction costs related to acquisition				1,913
Purchase price allocation
Trade receivables, net				16,567
Inventories, net				11,142
Prepaid expenses and other assets				2,860
Property, plant and equipment				30,304
Amortizable intangible assets				33,530
Goodwill	20,233	5,782	5,665	14,209
Accounts payable				(10,622)
Accrued liabilities				(7,990)
Net purchase price				90,000
Amortization period of intangible assets					15 years	10 years
Unaudited pro forma financial information
Revenues							220,692
Net income							$ 7,984
Diluted net income per share (in dollars per share)							$ 0.88