Business Combinations - Business Acquisition, Pro Forma Adjustments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Pro forma adjustments:
Expenses related to non-continuing personnel, locations or activities	$ (305)	$ 3,022
Incremental depreciation and amortization	(1,680)	(5,358)
Incremental interest costs	(183)	(1,477)
Tax effects of pro forma adjustments	511	1,202
Total Adjustments to Net Earnings	(485)	(16,209)
GenePOC Inc [Member]
Adjustments to Net Revenues
GenePOC pre-acquisition revenues	7,464	13,807
Adjustments to Net Earnings
GenePOC pre-acquisition net loss	(6,423)	$ (13,598)
Pro forma adjustments:
Meridian acquisition-related costs	3,890
Exalenz transaction-related costs	4,550
Gain on Exalenz purchase price currency contracts	$ (845)