ACQUISITIONS: - Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Amortization activity of purchased intangible assets
Intangible assets, gross	$ 78,316	$ 76,690	$ 10,211
Total accumulated amortization	(34,213)	(21,189)	(9,742)
Intangible assets, net	44,103	55,501	469
Amortization expense	$ 15,467	11,447	340
Remaining amortizable periods of intangible assets	5 years
Internally developed software
Amortization activity of purchased intangible assets
Intangible assets, gross	$ 42,850	42,524	2,537
Total accumulated amortization	(17,950)	(9,924)	(2,349)
Intangible assets, net	24,900	32,600	188
Amortization expense	30,700	29,000	9,700
Customer/Trademarks assets
Amortization activity of purchased intangible assets
Intangible assets, gross	35,466	34,166	7,674
Total accumulated amortization	(16,263)	(11,265)	(7,393)
Intangible assets, net	$ 19,203	$ 22,901	$ 281
Minimum | Other intangible assets
Amortization activity of purchased intangible assets
Amortization lives for intangibles	2 years
Maximum | Other intangible assets
Amortization activity of purchased intangible assets
Amortization lives for intangibles	10 years