RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABLITY ROLLFORWARD TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Balance as of December 31, 2011	$ 2,067
Expense	18,254
Payments	(3,408)
Reversals	0
Balance as of June 30, 2012	16,913
Closure of Delivery Centers [Member]
Restructuring Cost and Reserve [Line Items]
Balance as of December 31, 2011	415
Expense	99
Payments	(139)
Reversals	0
Balance as of June 30, 2012	375
Reduction in Force [Member]
Restructuring Cost and Reserve [Line Items]
Balance as of December 31, 2011	1,652
Expense	18,155
Payments	(3,269)
Reversals	0
Balance as of June 30, 2012	$ 16,538