Stockholders' Equity - Summary of Stock Based Compensation from Stock Options, RSUs and ESPP (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total amount charged to operating loss	$ 62,229	$ 59,389	$ 182,771	$ 190,036
Property and equipment (capitalized internal-use software)	3,894	1,934	9,819	6,165
Total stock-based compensation	66,123	61,323	192,590	196,201	$ 196,201
Revenue - subscription and transaction fees | Subscription and transaction fees
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total amount charged to operating loss	562	446	1,697	1,303
Cost of revenue - service costs
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total amount charged to operating loss	2,414	2,190	7,147	7,124
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total amount charged to operating loss	27,362	25,183	80,265	78,708
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total amount charged to operating loss	9,507	10,968	30,781	37,643
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total amount charged to operating loss	22,384	20,382	62,881	61,684
Restructuring
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total amount charged to operating loss	$ 0	$ 220	$ 0	$ 3,574