GOODWILL AND INTANGIBLE ASSETS:

6 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

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

The amounts allocated to intangible assets from acquisitions include developed technology, customer relationships, trade names, and publisher relationships. Amortization lives for those intangibles range from two years to six years. 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

Total amortization expense related to intangible assets for the six months ended September 30, 2018 and 2017 was $9.6 million and $12.2 million, respectively. The following table presents the estimated future amortization expenses

related to purchased and other intangible assets. The amount for 2019 represents the remaining six months ending March 31, 2019. 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