CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (56,309)	$ (79,304)	$ 18,398
Net loss from discontinued operations, net of tax	(35,152)	(27,752)	(2,274)
Net income (loss) from continuing operations	(21,157)	(51,552)	20,672
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by operating activities:
Depreciation	17,221	17,441	5,855
Intangible asset amortization	4,781	5,871	3,931
Stock-based compensation	11,364	10,667	9,539
Amortization of debt issuance costs and discount	10,180	13,764	11,492
Impairment losses	825	5,754
Noncash operating lease cost	421	1,534
Loss on extinguishment of debt		2,408	2,033
Revenue assigned to factors	(6,291)	(6,844)
Tax benefits on vested and exercised equity awards			758
Deferred tax assets, net	(1)	18,552	(525)
Unrealized foreign currency transaction gains	217	211	404
Equity in net loss of affiliate and related impairment loss		530	6,787
Changes in operating assets and liabilities of continuing operations, excluding effects from acquisitions:
Accounts receivable	1,624	7,549	(4,022)
Inventories	8,691	(1,439)	5,035
Prepaid expenses and other current assets	(7,311)	(2,014)	(7,379)
Accounts payable	10,166	(17,598)	2,032
Accrued liabilities	8,257	4,602	(18,370)
Deferred revenue	(6,199)	1,975	6,065
Operating lease liabilities	(297)	(4,962)
Other	506	388	366
Net cash provided by continuing operations	32,997	6,837	44,673
Net cash provided by (used in) discontinued operations	(4,412)	4,707	3,067
NET CASH PROVIDED BY OPERATING ACTIVITIES	28,585	11,544	47,740
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities and sale of marketable securities	6,264	37,055	56,358
Purchases of marketable securities	(6,264)	(19,543)	(50,364)
Capital expenditures	(11,356)	(21,301)	(10,399)
Acquisitions, net of cash acquired		(60,652)	(13,031)
Equity investments in and advances to affiliate		(530)	(2,631)
Other		164	(110)
Net cash used in continuing operations	(11,356)	(64,807)	(20,177)
Net cash used in discontinued operations	(2,338)	(891)	(1,608)
NET CASH USED IN INVESTING ACTIVITIES	(13,694)	(65,698)	(21,785)
CASH FLOWS FROM FINANCING ACTIVITIES:
Taxes paid related to net share settlement of vested equity awards	(1,628)	(2,007)	(3,603)
Proceeds from exercise of stock options and contributions to employee stock purchase plan	1,967	1,870	124
Proceeds from issuance of 2025 Convertible Notes			230,000
Payment of debt issuance costs of 2025 Convertible Notes			(7,305)
Purchase of capped call on 2025 Convertible Notes			(21,160)
Repurchase of 2020 Convertible Notes	(27,599)	(94,683)	(53,683)
Proceeds from unwind of note hedges and warrants on 2020 Convertible Notes			3,122
Proceeds from Paycheck Protection Program Loan	10,000
Repayment of Paycheck Protection Program Loan	(10,000)
Proceeds from revolving credit facility, net of issuance costs	19,944
Repayment of revolving credit facility	(20,000)
Repurchases of common stock			(49,000)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(27,316)	(94,820)	98,495
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(355)	(122)	(553)
Net change in cash and cash equivalents	(12,780)	(149,096)	123,897
Cash and cash equivalents at beginning of year	107,404	256,500	132,603
Cash and cash equivalents at end of year	$ 94,624	$ 107,404	$ 256,500