GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013	Sep. 27, 2014 Customer Relationships	Dec. 28, 2013 Customer Relationships	Sep. 27, 2014 Proprietary Software and Database	Dec. 28, 2013 Proprietary Software and Database	Sep. 27, 2014 Patents and Proprietary Technology	Dec. 28, 2013 Patents and Proprietary Technology	Sep. 27, 2014 Other	Dec. 28, 2013 Other
Components of amortized intangible assets
Gross Carrying Amount	$ 224,083		$ 224,083		$ 194,345	$ 203,018	$ 177,495	$ 3,872	$ 3,896	$ 12,694	$ 11,334	$ 4,499	$ 1,620
Accumulated Amortization	100,000		100,000		87,597	86,175	76,024	2,983	2,896	8,258	7,239	2,584	1,438
Weighted Average Life						13 years	13 years	6 years	6 years	8 years	8 years	3 years	6 years
Amortization expense for intangible assets	4,702	3,750	13,439	11,446
Estimated amortization expense
2014	19,489		19,489
2015	17,182		17,182
2016	16,719		16,719
2017	16,519		16,519
2018	$ 14,863		$ 14,863