RESTRUCTURING AND SEVERANCE CHARGES - Additional Information (Detail) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Oct. 03, 2010	Sep. 30, 2012 Other Facility [Member]	Oct. 02, 2011 Other Facility [Member]	Sep. 30, 2012 Other Facility [Member] Employee Severance Person	Oct. 02, 2011 Other Facility [Member] Employee Severance	Sep. 30, 2012 Other Facility [Member] Contract Termination Costs	Oct. 02, 2011 Other Facility [Member] Contract Termination Costs	Sep. 30, 2012 Scottsdale Facility	Oct. 02, 2011 Scottsdale Facility	Apr. 03, 2011 Scottsdale Facility sqft	Sep. 30, 2012 Scottsdale Facility Employee Severance	Oct. 02, 2011 Scottsdale Facility Employee Severance	Sep. 30, 2012 Scottsdale Facility Contract Termination Costs	Oct. 02, 2011 Scottsdale Facility Contract Termination Costs
Schedule of Status of Facilities by Location [Line Items]
Occupied leased facility (square foot)												135,000
Recorded severance accruals				$ 2,312,000	$ 2,723,000	$ 2,122,000	$ 2,723,000	$ 190,000	$ 0	$ 5,965,000	$ 7,683,000		$ 117,000	$ 355,000	$ 5,848,000	$ 7,328,000
Restructuring and severance charges	8,666,000	22,081,000	2,107,000			8,666,000
Pre-acquisition liabilities fair value				9,797,000		8,215,000		1,582,000
Number of employees						300
Restructuring, Reversal of Prior Provision								$ 1,300,000