SIGNIFICANT ACCOUNTING POLICIES (Textual) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Product Warranties
Period of warranty services (in years)	3 years
Stock-Based Compensation
Anti-dilutive shares excluded from the calculation of diluted earnings per share (in shares)	107,814	626,135	1,504,346
Advertising Costs
Advertising costs	$ 12,376	$ 11,269	$ 9,222
Research and Development
Research and development costs	37,305	32,834	29,489
Bonus
Costs related to the Company's discretionary employee bonus programs	$ 124,947	$ 104,361	$ 73,197