DIVESTITURES: (Details) (USD $)	3 Months Ended				12 Months Ended		1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended		3 Months Ended		12 Months Ended	1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2012	Mar. 31, 2011	Feb. 29, 2012 AISS business unit	Mar. 31, 2012 AISS business unit	Mar. 31, 2011 AISS business unit	Jul. 31, 2011 MENA subsidiary	Mar. 31, 2012 MENA subsidiary	Mar. 31, 2011 MENA subsidiary	Sep. 30, 2011 MENA subsidiary Gains, losses and other items, net	Sep. 30, 2011 MENA subsidiary Net loss attributable to noncontrolling interest	Mar. 31, 2012 MENA subsidiary Net loss attributable to noncontrolling interest	Feb. 28, 2011 Portugal operations	Mar. 31, 2011 Portugal operations	Mar. 31, 2011 Portugal operations Gains, losses and other items, net	Mar. 31, 2011 Netherlands operations	Mar. 31, 2011 Netherlands operations	Mar. 31, 2013 Netherlands operations Gains, losses and other items, net
DIVESTITURES
Cash payment to MENA under the terms of disposal										$ 1,000,000
Cash payment to acquirer																900,000			200,000
Maximum period of continued involvement primarily related to providing transaction support										2 years
Loss on disposal of subsidiary											3,400,000			900,000	900,000
Loss on disposal													2,500,000			800,000		828,000	2,500,000		0
Accrual for exit activities included in loss on disposal																			1,100,000
Goodwill												0					0		0	0
Elimination of accumulated deficit attributable to subsidiary as a result of deconsolidation										900,000
Sale of discontinued business unit							74,000,000
Revenue associated with discontinued operations								42,819,000	46,215,000			5,700,000					700,000			3,500,000
Earnings from discontinued operations
Earnings from discontinued operations before income taxes								4,907,000	5,747,000
Gain on sale of discontinued operations before income taxes								48,380,000
Income taxes					(19,388,000)	(2,351,000)		(19,388,000)	(2,351,000)
Income from discontinued operations, net of tax	$ 31,031,000	$ 814,000	$ 1,138,000	$ 916,000	$ 33,899,000	$ 3,396,000		$ 33,899,000	$ 3,396,000