RESTRUCTURING (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Restructuring Reserve [Roll Forward]
Restructuring Liability	$ 7,593
Subsequent Plan Adjustments	314
Cash Payments	(1,295)
Restructuring Liability	6,612
Real estate obligations | Activity for 2011 restructuring charge:
Restructuring Reserve [Roll Forward]
Restructuring Liability	361
Subsequent Plan Adjustments	(67)
Cash Payments	(138)
Restructuring Liability	156
Real estate obligations | Activity for 2007 restructuring charge
Restructuring Reserve [Roll Forward]
Restructuring Liability	5,162
Subsequent Plan Adjustments	261
Cash Payments	(769)
Restructuring Liability	4,654
Real estate obligations | Activity for 2001 restructuring charge
Restructuring Reserve [Roll Forward]
Restructuring Liability	2,070
Subsequent Plan Adjustments	120
Cash Payments	(388)
Restructuring Liability	$ 1,802