Business Combinations (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 04, 2016	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 11, 2015
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Goodwill		$ 188,837	$ 73,571
HealthFusion [Member]
Purchase price details
Cash paid	$ 165,000
Contingent consideration	16,700
Preliminary working capital and other adjustments	1,349	3,217
Preliminary purchase price	183,049
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Acquired cash and cash equivalents	2,225
Accounts receivable, net	1,514
Prepaid expenses and other current assets	4,645
Other assets	700
Accounts payable	(1,085)
Accrued compensation and related benefits	(533)
Deferred revenue	(1,067)
Deferred income taxes, net	(12,027)
Other liabilities	(2,721)
Total preliminary net tangible assets acquired and liabilities assumed	(7,275)
Software technology	75,000
Goodwill	115,324
Total preliminary identifiable intangible assets acquired	190,324
Total preliminary purchase price	183,049
Gennius [Member]
Purchase price details
Cash paid		0	$ 2,345	$ 0
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Other assets		4
Accrued compensation and related benefits		(131)
Deferred revenue		(37)
Total preliminary net tangible assets acquired and liabilities assumed		(164)
Software technology					$ 1,800
Goodwill		709
Total preliminary identifiable intangible assets acquired		2,509
Total preliminary purchase price		2,345
Software Technology [Member] | HealthFusion [Member]
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Identifiable intangible assets	42,500
Software Technology [Member] | Gennius [Member]
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Software technology		$ 1,800
Customer Relationships [Member] | HealthFusion [Member]
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Identifiable intangible assets	28,500
Trade Name [Member] | HealthFusion [Member]
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Identifiable intangible assets	4,000
Equipment and improvements, net [Member] | HealthFusion [Member]
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Property and equipment	767
Capitalized software costs, net [Member] | HealthFusion [Member]
Preliminary fair value of the net tangible assets acquired and liabilities assumed:
Property and equipment	$ 307