RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES (Details) (USD $)	9 Months Ended			12 Months Ended		12 Months Ended			12 Months Ended		24 Months Ended
	Dec. 31, 2011	Dec. 31, 2011 Associate related reserves	Dec. 31, 2011 Ongoing contracts	Mar. 31, 2011 Fiscal 2011	Dec. 31, 2011 Fiscal 2011 Multiple Payment	Mar. 31, 2011 Fiscal 2011 Associate related reserves	Mar. 31, 2011 Fiscal 2011 Termination of associates in United States, Australia, and Europe	Dec. 31, 2011 Fiscal 2011 Termination of associates in United States, Australia, and Europe	Mar. 31, 2011 Fiscal 2011 Restructuring adjustments	Mar. 31, 2011 Fiscal 2011 Executive leadership transition	Mar. 31, 2010 Fiscal 2008 and 2009 Lease accruals	Dec. 31, 2011 Fiscal 2008 and 2009 Lease accruals
Restructuring activity
Balance at beginning of period	$ 15,104,000	$ 5,562,000	$ 9,542,000					$ 100,000				$ 8,500,000
Payments	(6,622,000)	(5,677,000)	(945,000)
Charges and adjustments	164,000	230,000	(66,000)
Balance at end of period	8,646,000	115,000	8,531,000					100,000				8,500,000
Gains, Losses and Other Items
Restructuring plan charges and adjustments included in the consolidated statement of operations				$ 4,400,000		$ 3,400,000	$ 3,400,000		$ 1,700,000	$ 2,700,000	$ 22,200,000
Number of lump sum payments of transition charges					1
Number of times of officer's annual salary and bonus opportunity					2