RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES: (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended			1 Months Ended		12 Months Ended	3 Months Ended				12 Months Ended
	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010	Feb. 29, 2012 Portugal operations	Mar. 31, 2011 Netherlands operations	Mar. 31, 2012 MENA	Mar. 31, 2012 Gains, losses and other items	Sep. 30, 2011 Gains, losses and other items	Mar. 31, 2011 Gains, losses and other items	Dec. 31, 2010 Gains, losses and other items	Mar. 31, 2012 Gains, losses and other items	Mar. 31, 2011 Gains, losses and other items	Mar. 31, 2010 Gains, losses and other items	Mar. 31, 2011 Gains, losses and other items Legal contingency	Mar. 31, 2012 Gains, losses and other items Portugal operations	Mar. 31, 2011 Gains, losses and other items Portugal operations	Mar. 31, 2012 Gains, losses and other items Netherlands operations	Mar. 31, 2011 Gains, losses and other items Netherlands operations	Mar. 31, 2012 Gains, losses and other items MENA
Restructuring costs and other charges
(Gain) Loss on disposition					$ 800	$ 2,500			$ 2,500							$ (7)	$ 828	$ 30	$ 2,511
Loss on disposition of operations							(3,400)													(2,505)
Legal contingency															(2,125)
Restructuring charges and adjustments												12,778	4,435	(1,292)
Earnout liability adjustment										(600)		(2,598)	(1,058)
Other												(70)	9	348
Gains, losses and other items	$ 8,200	$ 12,638	$ 4,600	$ (944)				$ 12,600			$ (3,600)