GOODWILL AND INTANGIBLE ASSETS: (Tables)

6 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill by operating segment and activity and by component included in each segment

Goodwill for the six months ended September 30, 2018 (dollars in thousands) was as follows:

	Total
Balance at March 31, 2018	$	203,639
Reallocation from AMS	1,377
Change in foreign currency translation adjustment	(147)
Balance at September 30, 2018	$	204,869

Goodwill by geography as of September 30, 2018 was: 

	Total
U.S.	$	201,449
APAC	3,420
Balance at September 30, 2018	$	204,869

Schedule of amortization activity of intangible assets

The following table shows the amortization activity of intangible assets (dollars in thousands):

	September 30, 2018		March 31, 2018
Developed technology, gross (Software)	$	54,000	$	54,000
Accumulated amortization	(48,054)		(43,383)
Net developed technology	$	5,946	$	10,617
Customer relationship/Trade name, gross (Other assets, net)	$	35,800	$	35,800
Accumulated amortization	(23,359)		(20,400)
Net customer/trade name	$	12,441	$	15,400
Publisher relationship, gross (Other assets, net)	$	23,800	$	23,800
Accumulated amortization	(7,272)		(5,289)
Net publisher relationship	$	16,528	$	18,511
Total intangible assets, gross	$	113,600	$	113,600
Total accumulated amortization	(78,685)		(69,072)
Total intangible assets, net	$	34,915	$	44,528

Schedule of estimated future amortization expenses related to purchases and other intangible assets

All other periods represent fiscal years ending March 31 (dollars in thousands): 

Fiscal Year:
2019	$	6,356
2020	11,950
2021	8,025
2022	5,150
2023	3,434
	$	34,915