FAIR VALUE MEASUREMENTS - Changes to Contingent Consideration (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2013
Fair Value Disclosures [Abstract]
Contingent consideration, beginning balance	$ 18,511
Increases due to acquisitions	3,378
Decrease due to payments	(4,125)
Changes due to currency fluctuations	(1,083)
Changes in fair value reflected in Selling, general, and administrative expenses	(122)
Contingent consideration, ending balance	$ 16,559

Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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