ACQUISITIONS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Nov. 30, 2013
Acquisitions
Annual sales at the date of acquisition	$ 685,062	$ 718,573
Consideration paid in cash and assumed debt			54,261
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value				18,943
Fair value of net assets acquired				30,531
Goodwill from acquisition			42,673
2013 Acquisitions [Member]
Acquisitions
Annual sales at the date of acquisition			$ 35,000