RESTRUCTURING CHARGES - 2011 Restructuring Plan (Details) (USD $)	3 Months Ended			9 Months Ended		10 Months Ended	12 Months Ended					3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended					9 Months Ended		3 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Oct. 02, 2011	Sep. 30, 2012	Oct. 02, 2011	Sep. 30, 2012	Dec. 31, 2013	Jul. 01, 2012	Dec. 31, 2011	Sep. 30, 2012 Accrued liabilities, current	Sep. 30, 2012 Other liabilities, non current	Sep. 30, 2012 Employee Severance and Other Costs	Sep. 30, 2012 Employee Severance and Other Costs	Sep. 30, 2012 Contract Termination [Member]	Sep. 30, 2012 Contract Termination [Member]	Jul. 01, 2012 Contract Termination [Member]	Dec. 31, 2011 Contract Termination [Member]	Nov. 30, 2011 Contract Termination, Related to Future Rent Obligations	Dec. 31, 2010 Contract Termination, Related to Future Rent Obligations facility	Sep. 30, 2012 2011 Restructuring Plan, First Three Phases Minimum	Sep. 30, 2012 2011 Restructuring Plan, First Three Phases Maximum	Dec. 31, 2012 2011 Restructuring Plan, Remaining Phases Minimum	Dec. 31, 2012 2011 Restructuring Plan, Remaining Phases Maximum
Restructuring Cost and Reserve [Line Items]
Expected Annual Cost Savings							$ 20,000,000
Estimated restructuring costs																				6,000,000	7,000,000	2,000,000	3,000,000
Payments to Acquire Property, Plant, and Equipment	1,000,000			1,249,000	785,000
Contract termination costs established prior to 2011		1,781,000		1,781,000		1,781,000		1,857,000	2,743,000					1,554,000	1,554,000	1,707,000	2,661,000	900,000
Number of vacated leased facilities related to restructuring																			2
Restructuring charges		453,000	181,000	2,004,000	103,000									0	0
Payments		(535,000)		(2,993,000)								(400,000)	(1,900,000)	(162,000)	(1,091,000)
Restructuring cost recorded to date						3,800,000
Restructuring reserve, current		1,385,000		1,385,000		1,385,000			1,230,000	1,400,000
Restructuring reserve, noncurrent											$ 400,000