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Debt and Financing Arrangements (Tables)

3 Months Ended

Apr. 30, 2021

Net Carrying Amount of Liability and Equity Components of Convertible Notes

The net carrying amount of the liability component of the Notes as of April 30, 2021 (post-ASU 2020-06 adoption) and as of January 31, 2021 (pre-ASU 2020-06 adoption) was as follows:


	As of April 30, 2021		As of January 31, 2021
	(in thousands)
Principal	$	287,500	$	287,500
Less: unamortized debt discount	—		(63,664)
Less: unamortized issuance costs	(7,797)		(6,308)
Net carrying amount	$	279,703	$	217,528

The net carrying amount of the equity component of the Notes as of April 30, 2021 (post-ASU 2020-06 adoption) and as of January 31, 2021 (pre-ASU 2020-06 adoption) was as follows:


	As of April 30, 2021		As of January 31, 2021
	(in thousands)
Proceeds allocated to the conversion options (debt discount)	$	—	$	70,768
Less: issuance costs	—		(2,290)
Carrying amount of the equity component	$	—	$	68,478

Interest expense recognized related to the Notes is as follows. There was no interest expense associated with the Notes for the three months ended April 30, 2020.


	Three Months Ended April 30, 2021
	(in thousands)
Contractual interest expense	$	879
Amortization of debt issuance costs	438
Total interest expense related to the Notes	$	1,317