Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of transfers of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized among segments.

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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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GOODWILL: (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
GOODWILL: (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Mar. 31, 2016	Mar. 31, 2015
Goodwill
Goodwill at the beginning of year				$ 497,362	$ 286,876
Change in foreign currency translation adjustment				(79)	(2,607)
Goodwill at the end of year	$ 492,745			492,745	497,362
Accumulated impairment losses	120,100			120,100	114,200
Brazil reporting unit
Goodwill
Impairment				(502)
U.S. reporting unit
Goodwill
Goodwill at the end of year	481,188			481,188
APAC reporting unit
Goodwill
Impairment		$ 0		(5,413)
Goodwill at the end of year	11,557			11,557
Marketing Services and Audience Solutions
Goodwill
Goodwill at the beginning of year				497,362	286,876
Reallocation of segments				(496,860)
Change in foreign currency translation adjustment					(2,607)
Goodwill at the end of year					497,362
Marketing Services and Audience Solutions \| Brazil reporting unit
Goodwill
Impairment			$ (500)	(502)
Marketing Services
Goodwill
Reallocation of segments				124,627
Change in foreign currency translation adjustment				(41)
Goodwill at the end of year	124,586			124,586
Marketing Services \| U.S. reporting unit
Goodwill
Goodwill at the end of year	116,594			116,594
Marketing Services \| APAC reporting unit
Goodwill
Goodwill at the end of year	7,992			7,992
Audience Solutions
Goodwill
Reallocation of segments				277,516
Change in foreign currency translation adjustment				(50)
Goodwill at the end of year	273,430			273,430
Audience Solutions \| U.S. reporting unit
Goodwill
Goodwill at the end of year	273,430			273,430
Audience Solutions \| APAC reporting unit
Goodwill
Impairment	(5,400)			(5,413)
Connectivity
Goodwill
Reallocation of segments				94,717
Change in foreign currency translation adjustment				12
Goodwill at the end of year	94,729			94,729
Connectivity \| U.S. reporting unit
Goodwill
Goodwill at the end of year	91,164			91,164
Connectivity \| APAC reporting unit
Goodwill
Goodwill at the end of year	$ 3,565			3,565
LiveRamp, Inc.
Goodwill
Acquisitions					213,093
LiveRamp, Inc. \| Marketing Services and Audience Solutions
Goodwill
Acquisitions					$ 213,093
Addressable television assets of Allant
Goodwill
Acquisitions				1,377
Addressable television assets of Allant \| Audience Solutions
Goodwill
Acquisitions				$ 1,377