Revenue (Tables)

9 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table summarizes our revenue by geographic location of our customers (in thousands):

	Three months ended June 30,				Nine months ended June 30,
	2021		2020		2021		2020
North America, primarily the United States	$	56,965	$	52,603	$	167,406	$	157,513
Europe, Middle East & Africa	12,543		11,027		34,769		29,428
Rest of world	9,571		6,708		27,351		19,161
Total revenue	$	79,079	$	70,338	$	229,526	$	206,102

The following table summarizes our revenue by the timing of revenue recognition (in thousands):

	Three months ended June 30,				Nine months ended June 30,
	2021		2020		2021		2020
Transferred at a point in time	$	70,333	$	63,674	$	203,665	$	186,739
Transferred over time	8,746		6,664		25,861		19,363
Total revenue	$	79,079	$	70,338	$	229,526	$	206,102

Contract with Customer, Asset and Liability

Changes in unearned revenue were (in thousands):

	Three months ended June 30,				Nine months ended June 30,
	2021		2020		2021		2020
Unearned revenue, beginning of period	$	16,436	$	8,702	$	9,341	$	5,025
Billings	9,180		5,256		37,193		24,810
Revenue recognized	(10,775)		(7,530)		(31,693)		(23,407)
Unearned revenue, end of period	$	14,841	$	6,428	$	14,841	$	6,428