Ordinary Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended
	Jul. 31, 2021	Aug. 31, 2020	Apr. 30, 2021	Apr. 30, 2022	Jan. 31, 2022	Jan. 30, 2022	Mar. 31, 2021	Jul. 31, 2020
Subsidiary, Sale of Stock [Line Items]
Common stock authorized (in shares)			136,658,000	1,000,000,000			136,657,627
Common stock, par value (in US dollars per share)			$ 0.00005	$ 0.00005	$ 0.00005		$ 0.00005
Convertible preferred shares, shares authorized (in shares)			50,809,000	50,000,000		52,060,000
Share repurchase program, remaining authorized amount (in shares)			630,379	442,787
Share repurchase program liability			$ 700	$ 800
Share repurchase program, authorized amount (in shares)								8,032,128
Repurchase of ordinary shares			22,908
Share repurchase program, authorized price per share (in US dollars per share)	$ 4.98
Share repurchase program, number of shares repurchased (in shares)		6,875,822
Payments for repurchase of ordinary shares and options		$ 34,200
Excess of repurchase price over fair value recorded as share-based compensation expense			11,300
Additional Paid-in Capital
Subsidiary, Sale of Stock [Line Items]
Repurchase of ordinary shares		900	932
Accumulated Deficit
Subsidiary, Sale of Stock [Line Items]
Repurchase of ordinary shares		$ 22,000	$ 21,975
Restricted Stock Awards
Subsidiary, Sale of Stock [Line Items]
Share repurchase program, remaining authorized amount (in shares)			116,667	16,667
Early Option Exercise
Subsidiary, Sale of Stock [Line Items]
Share repurchase program, remaining authorized amount (in shares)			513,712	426,120
IPO
Subsidiary, Sale of Stock [Line Items]
Common stock authorized (in shares)					1,000,000,000
Convertible preferred shares, shares authorized (in shares)					50,000,000