CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND NONCONTROLLING INTEREST - USD ($) $ in Thousands	Total	Common Shares	Additional paid-in capital	Accumulated deficit	Accumulated Other Comprehensive (Loss) Income	Non- Controlling Interests
Beginning balance (in shares) at Sep. 30, 2021		15,931,485
Beginning balance at Sep. 30, 2021	$ 105,128	$ 3,945	$ 112,198	$ (11,015)	$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	(83,047)			(83,411)		364
Stock issued in acquisitions (In shares)		8,374,138
Stock issued in acquisitions	461,383	$ 2,094	459,289
Noncontrolling interest related to Envigo acquisition	(983)					(983)
Issuance of stock under employee stock plans (in shares)		42,971
Issuance of stock under employee stock plans	49	$ 11	38
Stock-based compensation	19,160		19,160
Pension cost amortization	(110)				(110)
Foreign currency translation adjustment	247				247
Reclassification of convertible note embedded derivative to equity	88,576		88,576
Ending balance (in shares) at Dec. 31, 2021		24,348,594
Ending balance at Dec. 31, 2021	590,403	$ 6,050	679,261	(94,426)	137	(619)
Beginning balance (in shares) at Sep. 30, 2021		15,931,485
Beginning balance at Sep. 30, 2021	105,128	$ 3,945	112,198	(11,015)	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	$ (92,862)
Stock issued in acquisitions (In shares)	9,498,213
Pension cost amortization	$ 403
Ending balance (in shares) at Jun. 30, 2022		25,515,791
Ending balance at Jun. 30, 2022	613,633	$ 6,341	715,387	(104,646)	(3,306)	(143)
Beginning balance (in shares) at Dec. 31, 2021		24,348,594
Beginning balance at Dec. 31, 2021	590,403	$ 6,050	679,261	(94,426)	137	(619)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	(6,087)			(6,664)		577
Stock issued in acquisitions (In shares)		1,106,457
Stock issued in acquisitions	32,875	$ 276	32,599
Noncontrolling interest related to Envigo acquisition	(191)					(191)
Issuance of stock under employee stock plans (in shares)		40,650
Issuance of stock under employee stock plans	46	$ 10	36
Stock-based compensation	1,138		1,138
Pension cost amortization	340				340
Foreign currency translation adjustment	(1,114)				(1,105)	(9)
Ending balance (in shares) at Mar. 31, 2022		25,495,701
Ending balance at Mar. 31, 2022	617,410	$ 6,336	713,034	(101,090)	(628)	(242)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	$ (3,728)			(3,556)		(172)
Stock issued in acquisitions (In shares)	17,618	17,618
Stock issued in acquisitions	$ 364	$ 4	360
Noncontrolling interest related to Envigo acquisition	271					271
Issuance of stock under employee stock plans (in shares)		2,472
Issuance of stock under employee stock plans	7	$ 1	6
Stock-based compensation	1,987		1,987
Pension cost amortization	173				173
Foreign currency translation adjustment	(2,851)				(2,851)	0
Ending balance (in shares) at Jun. 30, 2022		25,515,791
Ending balance at Jun. 30, 2022	$ 613,633	$ 6,341	715,387	(104,646)	(3,306)	(143)
Beginning balance (in shares) at Sep. 30, 2022	25,598,289	25,598,289
Beginning balance at Sep. 30, 2022	$ 359,766	$ 6,362	707,787	(348,277)	(5,500)	(606)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	(87,323)			(86,932)		(391)
Issuance of stock under employee stock plans (in shares)		8,347
Issuance of stock under employee stock plans	24	$ 1	23
Stock-based compensation	2,046		2,046
Pension cost amortization	(54)				(54)
Foreign currency translation adjustment	5,348				5,348
Ending balance (in shares) at Dec. 31, 2022		25,606,636
Ending balance at Dec. 31, 2022	$ 279,807	$ 6,363	709,856	(435,209)	(206)	(997)
Beginning balance (in shares) at Sep. 30, 2022	25,598,289	25,598,289
Beginning balance at Sep. 30, 2022	$ 359,766	$ 6,362	707,787	(348,277)	(5,500)	(606)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	$ (95,477)
Stock issued in acquisitions (In shares)	0
Pension cost amortization	$ (163)
Ending balance (in shares) at Jun. 30, 2023	25,782,742	25,782,742
Ending balance at Jun. 30, 2023	$ 275,330	$ 6,513	713,601	(444,443)	392	(733)
Beginning balance (in shares) at Dec. 31, 2022		25,606,636
Beginning balance at Dec. 31, 2022	279,807	$ 6,363	709,856	(435,209)	(206)	(997)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	(9,994)			(9,629)		(365)
Issuance of stock under employee stock plans (in shares)		152,471
Issuance of stock under employee stock plans	82	$ 128	(46)
Stock-based compensation	1,781		1,781
Pension cost amortization	(54)				(54)
Foreign currency translation adjustment	962				962
Other	51					51
Ending balance (in shares) at Mar. 31, 2023		25,759,107
Ending balance at Mar. 31, 2023	272,635	$ 6,491	711,591	(444,838)	702	(1,311)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to common shareholders	$ 1,840			365		1,475
Stock issued in acquisitions (In shares)	0
Noncontrolling interest related to Envigo acquisition	$ (961)					(961)
Issuance of stock under employee stock plans (in shares)		23,635
Issuance of stock under employee stock plans	3	$ 22	(19)
Stock-based compensation	2,029		2,029
Pension cost amortization	(55)				(55)
Foreign currency translation adjustment	(255)				(255)
Other	$ 94			30		64
Ending balance (in shares) at Jun. 30, 2023	25,782,742	25,782,742
Ending balance at Jun. 30, 2023	$ 275,330	$ 6,513	$ 713,601	$ (444,443)	$ 392	$ (733)