PROPERTY, PLANT AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	$ 157,985	$ 114,907
Accumulated depreciation	(83,881)	(74,011)
Property, plant and equipment, net	74,104	40,896
2014 Acquired Companies [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, net	36,500
Land [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	3,302	3,229
Buildings and Improvements [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	31,259	25,216
Machinery and Equipment [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	118,161	82,420
Construction in Progress [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	$ 5,263	$ 4,042