Revenue - Schedule of Revenue from Subscription and Transaction Fees Disaggregated by Customer Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Disaggregation Of Revenue [Line Items]
Total revenue	$ 358,450	$ 304,985
Subscription and transaction fees
Disaggregation Of Revenue [Line Items]
Total revenue	314,943	265,142
Integrated platform
Disaggregation Of Revenue [Line Items]
Total revenue	294,860	249,416
BILL AP/AR
Disaggregation Of Revenue [Line Items]
Total revenue	162,256	143,363
BILL Spend and Expense
Disaggregation Of Revenue [Line Items]
Total revenue	132,604	106,053
Embedded and Other Solutions
Disaggregation Of Revenue [Line Items]
Total revenue	20,083	15,726
Interest on funds held for customers
Disaggregation Of Revenue [Line Items]
Total revenue	$ 43,507	$ 39,843