GOODWILL: (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended			6 Months Ended
Sep. 30, 2012	Sep. 30, 2012 Marketing and Data Services	Sep. 30, 2012 Marketing and Data Services United States	Sep. 30, 2012 Marketing and Data Services Europe	Sep. 30, 2012 Marketing and Data Services Australia	Sep. 30, 2012 Marketing and Data Services China	Sep. 30, 2012 Marketing and Data Services Brazil	Sep. 30, 2012 IT Infrastructure Management	Mar. 31, 2012 IT Infrastructure Management	Sep. 30, 2012 Other services
Goodwill
Goodwill at the beginning of the period	$ 382,285	$ 306,077	$ 264,600	$ 19,600	$ 14,800	$ 6,000	$ 1,000	$ 71,508	$ 71,508	$ 4,700
Change in foreign currency translation adjustment	(13)	(35)								22
Goodwill at the end of the period	$ 382,272	$ 306,042	$ 264,600	$ 19,600	$ 14,800	$ 6,000	$ 1,000	$ 71,508	$ 71,508	$ 4,722

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details