SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) reportable_segment	Dec. 31, 2014 USD ($) reportable_segment	Dec. 31, 2013 USD ($) reportable_segment
Organization, Consolidation and Presentation of Financial Statements
Number of reportable business segments | reportable_segment	2	2	1
Restricted Cash
Restricted cash	$ 2,192	$ 3,151
Accounts Receivable
Maturity period of accounts receivable	30 days
Allowance for doubtful accounts	$ 900	1,100
Goodwill and Intangible Assets
Number of Reporting Units	3
Accrued Expenses
Compensation related expenses	$ 10,500	8,000
Revenue Recognition
Customer return period for parts and workholding	90 days
Research and Development Costs
Research and development expenses	$ 14,500	$ 13,900	$ 12,500
Derivative Financial Instruments
Maximum maturity period of derivative instruments qualifying as cash flow hedges	1 year
Buildings
Property, plant and equipment
Estimated useful life	40 years
Machinery, equipment and fixtures
Property, plant and equipment
Estimated useful life	12 years
Patterns, tools, jigs and furniture and fixtures
Property, plant and equipment
Estimated useful life	10 years
Office and computer equipment
Property, plant and equipment
Estimated useful life	5 years