FINANCING ARRANGEMENTS (Tables)

12 Months Ended

Feb. 28, 2019

Debt Disclosure [Abstract]

Schedule of Balances Attributable to the Notes

Balances attributable to the Notes consist of the following (in thousands):

	February 28,
	2019			2018
2020 Convertible Notes
Principal	$	122,527		$	172,500
Less: Unamortized debt discount		(6,461	)		(16,143	)
Unamortized debt issuance costs		(817	)		(2,058	)
Net carrying amount of the 2020 Convertible Notes		115,249			154,299
2025 Convertible Notes
Principal		230,000
Less: Unamortized debt discount		(64,565	)
Unamortized debt issuance costs		(4,779	)
Net carrying amount of the 2025 Convertible Notes		160,656
Convertible senior unsecured notes, net	$	275,905
Fair value of 2020 Convertible Notes (Level 2 measurement)	$	118,680
Fair value of 2025 Convertible Notes (Level 2 measurement)	$	184,334

Summary of Liability and Equity Components of Notes, Issuance Costs and Applicable Assumptions Used for Calculation

The table below summarizes the liability and equity components of the Notes, the issuance costs and the applicable assumptions used for the calculation (in millions except initial conversion rate and per share amounts):

	2020 Convertible Notes			2025 Convertible Notes
Initial conversion rate (shares per $1,000 principal amount)		36.2398			32.5256
Initial conversion price per share	$	27.5940		$	30.7450
Fair value of liability component upon issuance	$	138.9		$	160.8
Discount Rate		6.20	%		7.56	%
Fair value measurement level	Level 3			Level 3
Fair value of embedded equity component upon issuance	$	33.6		$	69.2
Deferred tax asset effect	$	16.0		$	17.3
Total issuance cost	$	4.3		$	7.3
Equity component	$	1.0		$	2.2
Deferred tax asset effect	$	0.4		$	0.5