Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Mar. 31, 2022	Sep. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021
Operating Loss Carryforwards [Line Items]
Effective income tax rate percentage	29.00%	18.90%	33.00%		28.00%	9.00%
Income tax expense	$ 1,774		$ 1,496		$ 3,911	$ 1,132
Profit before tax	6,100		$ 4,500		14,000	$ 12,100
Possible reduction in long-term tax obligations	$ 100				$ 100
Tax Years 2019 and 2020
Operating Loss Carryforwards [Line Items]
Income tax expense		$ (2,700)		$ (2,700)
Foreign Tax Authority | Her Majesty's Revenue and Customs (HMRC)
Operating Loss Carryforwards [Line Items]
Effect of increase in UK corporate tax rate		$ (200)