GOODWILL AND INTANGIBLE ASSETS (Details 2) (USD $)					12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012 Developed technology	Dec. 31, 2011 Developed technology	Dec. 29, 2012 Developed technology Ophir Division	Dec. 29, 2012 Customer relationships	Dec. 31, 2011 Customer relationships	Dec. 29, 2012 Customer relationships Ophir Division	Dec. 29, 2012 In-process research and development	Dec. 31, 2011 In-process research and development	Dec. 29, 2012 In-process research and development Ophir Division	Dec. 29, 2012 Other intangible assets	Dec. 31, 2011 Other intangible assets	Dec. 29, 2012 Trade names Ophir Division
Intangible assets subject to amortization:
Intangible assets	$ 59,141,000	$ 128,332,000	$ 29,742,000	$ 51,159,000		$ 20,100,000	$ 61,609,000		$ 7,746,000	$ 10,057,000		$ 1,553,000	$ 5,507,000
Accumulated amortization			10,885,000	6,903,000		26,255,000	16,500,000		158,000	0		5,915,000	1,996,000
Impairment charges related to finite-lived intangible assets					21,500,000			33,800,000			2,100,000			600,000
Intangible assets not subject to amortization:
Trademarks and trade names	18,305,000	22,240,000
Intangible assets, net	$ 77,446,000	$ 150,572,000