CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue	$ 157,468	$ 172,666	$ 431,685	$ 397,190
Costs and expenses:
Selling	4,793	4,802	14,058	12,187
General and administrative	26,570	21,652	84,574	56,251
Amortization of intangible assets	8,717	8,854	25,951	18,664
Other operating expense	6,261	10,841	14,712	48,871
Goodwill impairment loss	0	0	66,367	0
Operating income (loss)	8,783	4,787	(83,920)	(20,986)
Other (expense) income:
Interest expense	(10,786)	(8,441)	(31,751)	(20,816)
Other (expense) income	(12)	440	(1,345)	(57,426)
Loss before income taxes	(2,015)	(3,214)	(117,016)	(99,228)
Income tax benefit (expense)	2,380	(342)	20,820	5,597
Consolidated net income (loss)	365	(3,556)	(96,196)	(93,631)
Less: Net (loss) income attributable to noncontrolling interests	(1,475)	172	(719)	(769)
Net income (loss) attributable to common shareholders	$ 1,840	$ (3,728)	$ (95,477)	$ (92,862)
Earnings Per Share [Abstract]
Net loss attributable to common shareholders, basic (in dollars per share)	$ 0.07	$ (0.15)	$ (3.72)	$ (3.88)
Net loss attributable to common shareholders, diluted (in dollar per share)	$ 0.07	$ (0.15)	$ (3.72)	$ (3.88)
Weighted-average number of common shares outstanding:
Basic (in shares)	25,726	25,510	25,690	23,938
Diluted (in shares)	26,021	25,510	25,690	23,938
Service
Revenue	$ 56,295	$ 60,119	$ 165,095	$ 147,879
Costs and expenses:
Cost of revenue (excluding amortization of intangible assets)	39,115	34,477	112,688	91,991
Product
Revenue	101,173	112,547	266,590	249,311
Costs and expenses:
Cost of revenue (excluding amortization of intangible assets)	$ 63,229	$ 87,253	$ 197,255	$ 190,212