CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net loss	$ (104,497)	$ (4,751)	$ (5,120)
Adjustments to reconcile net loss to net cash provided by operating activites:
Depreciation	8,171	6,084	4,994
Amortization of intangibles	5,033	3,762	3,557
Impairment of goodwill and long-lived assets	9,469	15	640
Amortization of capitalized software	2,513	591	456
Stock-based compensation	29,176	21,462	16,334
Tax benefit from stock-based compensation expense	0	(486)	(224)
Deferred income tax expense (benefit)	66,273	(411)	(1,493)
Gain on escrow settlement	(1,393)	0	0
Other	677	1,196	1,273
Changes in assets and liabilities:
Accounts receivable	(2,402)	(4,799)	(4,539)
Other current and non-current assets	(3,149)	(2,515)	(1,520)
Accounts payable and accruals	11,860	8,135	9,482
Deferred revenue	310	195	(273)
Net cash provided by operating activities	22,041	28,478	23,567
Cash flows from investing activities:
Purchases of property and equipment	(9,178)	(8,851)	(4,894)
Cost of capitalized software	(12,486)	(5,516)	(2,095)
Gain on escrow settlement	1,393	0	0
Purchase of investments	(115,224)	(140,026)	(126,723)
Sales of investments	27,841	41,288	56,302
Proceeds from maturities of investments	100,382	93,795	64,361
Acquisition of businesses, net of cash acquired	0	(2,884)	(23,246)
Net cash used in investing activities	(7,272)	(22,194)	(36,295)
Cash flows from financing activities:
Capital lease payments	(1,079)	(674)	(446)
Payment of contingent consideration	(150)	(300)	(200)
Repurchase of common stock, including for withholding taxes	(22,440)	(3,003)	(11,653)
Tax benefit from stock-based compensation expense	0	486	224
Proceeds from issuance of common stock under employee stock plans	7,229	5,087	4,827
Net cash (used in) provided by financing activities	(16,440)	1,596	(7,248)
Effect of exchange rate changes on cash	444	(426)	442
Net (decrease) increase in cash and cash equivalents	(1,227)	7,454	(19,534)
Cash and cash equivalents,beginning of year	41,030	33,576	53,110
Cash and cash equivalents, end of year	39,803	41,030	33,576
Supplemental and non-cash disclosures:
Acquisition of property and equipment, net in connection with acquisitions of businesses	0	0	1,453
Acquisition of capital lease in connection with acquisitions of businesses	0	0	1,332
Equipment acquired under capital leases	765	1,152	573
Interest paid	36	16	44
Income taxes paid	$ 38	$ 460	$ 445