Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment reportingUnit $ / shares	Jun. 30, 2021 USD ($)	Dec. 31, 2017	Sep. 30, 2021 USD ($) $ / shares	Feb. 28, 2021 USD ($)	Feb. 05, 2021 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Foreign currency translation gain (loss)	$ (13,595,000)	$ 747,000	$ (16,724,000)	$ 859,000
Other-than-temporary impairment charges recognized	$ 0	0	$ 0	0
Common stock, par value (in dollars per share) | $ / shares	$ 0.001		$ 0.001			$ 0.001
Recoveries of allowance for doubtful accounts	$ 29,000
Write-offs of allowance for doubtful accounts		0	$ 21,000	35,000
Allowance for doubtful accounts receivable	500,000		500,000			$ 400,000
Capitalized software development costs for internal use	200,000	200,000	600,000	600,000
Amortization expense from capitalized software development costs for internal use	100,000	100,000	$ 200,000	300,000
Number of operating segments | segment			1
Number of reporting units | reportingUnit			1
Goodwill impairment	0	$ 0	$ 0	0
Impairment charges related to intangible assets			$ 0	$ 0
Trading-day average stock price period (in days)			20 days
Accumulated other comprehensive loss	17,856,000		$ 17,856,000			943,000
Cumulative translation adjustment	16,300,000		16,300,000			700,000
Other comprehensive loss	1,600,000		1,600,000			200,000
Convertible Debt | 2026 Notes
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issued							$ 155,300,000	$ 155,300,000
Debt interest rate							0.75%	0.75%
HooYu | Spanish Government Agencies
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt interest rate					0.00%
Amount outstanding under loan agreement	1,400,000		1,400,000			800,000
HooYu | Spanish Government Agencies | Other current liabilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Current loans payable	100,000		100,000			100,000
HooYu | Spanish Government Agencies | Other non-current liabilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Noncurrent loans payable	$ 1,300,000		$ 1,300,000			$ 700,000
Minimum | HooYu | Spanish Government Agencies
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Term of loan agreement (in years)					5 years
Maximum | HooYu | Spanish Government Agencies
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Term of loan agreement (in years)					12 years