Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Millions	1 Months Ended	9 Months Ended
	Dec. 31, 2021 Employee $ / shares shares	Mar. 31, 2022 USD ($) $ / shares shares
Class Of Stock [Line Items]
Unamortized stock-based compensation expense | $		$ 83.9
Weighted-average period over which unrecognized compensation cost is expected to be recognized		2 years 1 month 6 days
Class of warrant exercise price | $ / shares		$ 4.50
Class of warrant exercisable period		5 years
Class of warrant exercisable period ends		2023-09
Warrants issued or issuable		0
2019 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Unamortized stock-based compensation expense | $		$ 6.6
Weighted-average period over which unrecognized compensation cost is expected to be recognized		12 months
Expected volatility of option granted		77.20%
Risk-free interest rate, minimum		0.63%
Risk-free interest rate, maximum		0.88%
Expected dividend yield		0.00%
Minimum | 2019 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Expected term of stock options granted		7 months 6 days
Maximum
Class Of Stock [Line Items]
Issuance of warrants		5,600,000
Maximum | 2019 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Expected term of stock options granted		1 year
Restricted Stock Units
Class Of Stock [Line Items]
Unamortized stock-based compensation expense | $		$ 435.8
Weighted-average period over which unrecognized compensation cost is expected to be recognized		3 years
Number of other than options granted		2,500,000
Weighted grant-date fair value | $ / shares		$ 212.33
Restricted Stock Units | Minimum
Class Of Stock [Line Items]
Vest over requisite period		1 year
Restricted Stock Units | Maximum
Class Of Stock [Line Items]
Vest over requisite period		4 years
Market-based RSUs
Class Of Stock [Line Items]
Unamortized stock-based compensation expense | $		$ 7.7
Weighted-average period over which unrecognized compensation cost is expected to be recognized		1 year 9 months 18 days
Weighted grant-date fair value | $ / shares	$ 182.15
Number of employees shares granted | Employee	1
Expected volatility of option granted	60.00%
Risk-free interest rate, minimum	1.08%
Risk-free interest rate, maximum	1.21%
Market-based RSUs | Executive Employee
Class Of Stock [Line Items]
Number of other than options granted	50,000
Market-based RSUs | Minimum
Class Of Stock [Line Items]
Expected term of stock options granted	3 years
Requisite period for expenses recognized	1 year
Market-based RSUs | Maximum
Class Of Stock [Line Items]
Expected term of stock options granted	5 years
Requisite period for expenses recognized	3 years
Invoice2go 2014 Plan
Class Of Stock [Line Items]
Equity-based awards granted		0