Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Oct. 31, 2022	Jan. 31, 2022	Oct. 31, 2021
Statement Of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,265	$ 1,348	$ 1,313
Preferred shares, par value	$ 0.0001	$ 0.0001	$ 0.0001
Preferred shares, shares authorized	10,000,000	10,000,000	10,000,000
Preferred shares, shares issued	0	0	0
Common shares, par value	$ 0.0001	$ 0.0001	$ 0.0001
Common shares, shares authorized	200,000,000	200,000,000	200,000,000
Common shares, shares issued	92,174,487	96,431,044	97,863,862
Common shares, shares outstanding	92,174,487	96,431,044	97,863,862

Amount of allowance for credit loss on accounts receivable, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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