GOODWILL: (Details 2) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended						3 Months Ended				3 Months Ended		12 Months Ended			3 Months Ended	12 Months Ended					3 Months Ended			3 Months Ended			12 Months Ended
	Apr. 30, 2011 Segment	Dec. 31, 2011	Mar. 31, 2011	Mar. 31, 2012 Component Segment	Mar. 31, 2011	Mar. 31, 2010	Dec. 31, 2011 AISS business unit	Mar. 31, 2011 AISS business unit	Mar. 31, 2011 US Information Services	Mar. 31, 2011 Europe Information Services	Dec. 31, 2010 Europe Information Services	Mar. 31, 2011 APAC Information Services	Dec. 31, 2010 APAC Information Services	Dec. 31, 2011 MENA Information Services	Mar. 31, 2011 MENA Information Services	Mar. 31, 2011 MENA Information Services	Mar. 31, 2012 MENA Information Services	Dec. 31, 2010 MENA Information Services	Dec. 31, 2011 Brazil Information Services	Mar. 31, 2012 Brazil Information Services	Sep. 30, 2011 Brazil Information Services	Mar. 31, 2011 Brazil Information Services	Dec. 31, 2010 Brazil Information Services	Mar. 31, 2011 US Information Products	Mar. 31, 2011 Europe Information Products	Dec. 31, 2010 Europe Information Products	Dec. 31, 2010 APAC Information Products	Mar. 31, 2011 European operations	Mar. 31, 2012 International operations	Mar. 31, 2011 International operations	Mar. 31, 2011 International operations
Goodwill information
Number of operating segments	2			3
Number of components tested for impairment				7
Goodwill			$ 397,989,000	$ 382,285,000	$ 397,989,000	$ 450,596,000			$ 306,300,000	$ 13,400,000	$ 28,800,000	$ 10,800,000	$ 10,800,000				$ 2,400,000	$ 4,800,000			$ 4,100,000	$ 16,900,000	$ 16,900,000	$ 51,200,000	$ 9,100,000	$ 66,200,000	$ 10,000,000
Goodwill allocated to discontinued operations							19,700,000	19,665,000																		10,000,000
Impairment of goodwill and other intangibles		17,800,000	79,700,000	17,803,000	79,674,000									7,200,000	7,200,000	7,200,000			17,800,000											79,700,000
Impairment charge related to goodwill				13,599,000	77,324,000					15,400,000				4,800,000	4,800,000	4,800,000				13,800,000					57,100,000			72,500,000			77,300,000
Impairment charge related to other intangible assets														$ 2,400,000	$ 2,400,000	$ 2,400,000				$ 4,000,000									$ 2,400,000	$ 2,400,000