DEBT - Narrative (Details) $ / shares in Units, $ in Thousands								1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 09, 2023 USD ($)	Dec. 29, 2022 day	Oct. 12, 2022 USD ($)	Jan. 27, 2022 USD ($)	Jan. 07, 2022 USD ($)	Nov. 27, 2021 USD ($) day $ / shares	Nov. 05, 2021 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jul. 07, 2022 USD ($)	Oct. 04, 2021 USD ($)	May 03, 2021 USD ($)
DEBT
Borrowings on delayed draw term loan											$ 0	$ 35,000
Repayment of revolving credit facility											0	21,000
Maximum amount of line of credit									$ 15,000		15,000
Volunteer principal prepayments (as percentage)							0.0100
Cash and cash equivalents held on hand domestically	$ 10,000
Consideration to be paid-in-kind (as a percent)	0.50%
Consideration to be paid in cash upon prepayments (as a percent)	0.50%
Consideration to be paid in cash upon permanent reductions (as a percent)	7.00%
Unamortized debt issuance costs									3,705		3,705		$ 4,172
Interest expense									2,907	$ 2,740	5,807	5,504
Coupon interest expense									1,131	1,138	2,275	2,300
Accretion expense									1,542	1,383	3,065	2,764
Amortization of debt discount and issuance costs									$ 234	$ 219	$ 467	$ 440
Maximum | Secured Overnight Financing Rate (SOFR)
DEBT
Debt instrument, adjustment rate		0.0042826
Minimum | Secured Overnight Financing Rate (SOFR)
DEBT
Variable interest rate (as a percent)	1.00%	1.00%
Credit Agreement
DEBT
Basis points adjustments (as percentage)	0.50%	0.50%
Debt instrument, financial statement threshold | day		30
Debt instrument, financial statement threshold to provide cash flow forecast | day		10
Debt instrument, financial statement threshold to meet under the amended credit agreement		6 months
Credit Agreement | Line Of Credit Facility, Initial Leverage Ratio
DEBT
Threshold secured leverage ratio							4.25
Credit Agreement | Line Of Credit Facility, Leverage Ratio To Be Maintained Beginning Quarter Ending September 30, 2023
DEBT
Threshold secured leverage ratio							3.75
Credit Agreement | Line Of Credit Facility, Leverage Ratio To Be Maintained Beginning Quarter Ending March 31, 2025
DEBT
Threshold secured leverage ratio							3.00
Credit Agreement | Line Of Credit Facility, Minimum Fixed Charge Coverage Ratio To Be Maintained During First Anniversary
DEBT
Threshold secured leverage ratio							1.00
Credit Agreement | Line Of Credit Facility, Minimum Fixed Charge Coverage Ratio To Be Maintained From And After First Anniversary
DEBT
Threshold secured leverage ratio							1.10
Credit Agreement | Base Rate
DEBT
Basis points adjustments (as percentage)	1.00%	1.00%
Credit Agreement | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)							6.25%
Credit Agreement | Prime Rate
DEBT
Basis points adjustments (as percentage)							5.25%
Credit Agreement | Maximum | Base Rate
DEBT
Basis points adjustments (as percentage)	8.50%	5.50%
Credit Agreement | Maximum | Secured Overnight Financing Rate (SOFR)
DEBT
Basis points adjustments (as percentage)	9.50%	6.50%
Variable interest rate (as a percent)	0.42826%
Credit Agreement | Maximum | Prime Rate
DEBT
Basis points adjustments (as percentage)							5.50%
Credit Agreement | Minimum
DEBT
Variable interest rate (as a percent)							1.00%
Credit Agreement | Minimum | Base Rate
DEBT
Basis points adjustments (as percentage)	5.75%	5.00%
Variable interest rate (as a percent)	2.00%	2.00%
Credit Agreement | Minimum | Secured Overnight Financing Rate (SOFR)
DEBT
Basis points adjustments (as percentage)	6.75%	6.00%
Variable interest rate (as a percent)	0.11448%
Debt instrument, adjustment rate		0.0011448
Credit Agreement | Minimum | Prime Rate
DEBT
Basis points adjustments (as percentage)							5.00%
Term Loan
DEBT
Maximum amount of line of credit			$ 35,000	$ 40,000			$ 165,000
Maximum term for drawing loan facility				24 months
Effective rate (as percentage)									11.06%	10.40%	11.30%	10.32%
Volunteer principal prepayments (as percentage)				0.0100
Term Loan | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)				6.25%
Term Loan | Maximum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)				6.50%
Term Loan | Minimum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)				6.00%
Delayed Draw Term Loan
DEBT
Borrowings on delayed draw term loan					$ 35,000
Maximum amount of line of credit							$ 35,000
Maximum term for drawing loan facility							18 months
Effective rate (as percentage)									11.05%	10.45%	11.29%	10.35%
Commitment fee (as percentage)							1.00%
Delayed Draw Term Loan | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)					6.25%
Delayed Draw Term Loan | Maximum
DEBT
Basis points adjustments (as percentage)							6.50%
Delayed Draw Term Loan | Maximum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)					6.50%
Delayed Draw Term Loan | Minimum
DEBT
Basis points adjustments (as percentage)							6.00%
Delayed Draw Term Loan | Minimum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)					6.00%
Credit Facility Term Loan and Delayed Draw Term Loan
DEBT
Annual principal payments (as percentage)							1.00%
Revolving Credit Facility
DEBT
Line of Credit, Current									$ 0		$ 0		$ 0
Repayment of revolving credit facility			15,000
Commitment fee (as percentage)							0.50%
New Delayed Draw Term Loan
DEBT
Borrowings on delayed draw term loan			$ 35,000
Additional Term Loans
DEBT
Effective rate (as percentage)									11.17%	10.68%	11.42%	11.07%
Annual principal payments (as percentage)				1.00%
Seller Note - Plato BioPharma | Unsecured Debt
DEBT
Principal amount															$ 3,000
Interest Rate (as a percent)															4.50%
Seller Payable - Orient BioResource Center | Unsecured Debt
DEBT
Principal amount				$ 3,700
Fair value of debt				$ 3,325
Period for payment of consideration				18 months
Seller Note – Histion (Related party) | Unsecured Debt
DEBT
Principal amount															$ 433
Interest Rate (as a percent)															4.50%
Seller Note – Protypia (Related party) | Unsecured Debt
DEBT
Principal amount														$ 600
Interest Rate (as a percent)														4.50%
Convertible Senior Notes
DEBT
Principal amount						$ 140,000
Interest Rate (as a percent)						3.25%
Settlement period						13 days
Additional principal amount						$ 15,000
Initial conversion rate						21.7162
Initial conversion price (in dollars per share) | $ / shares						$ 46.05
Number of scheduled trading days | day						40
Conversion price						130.00%
Number of trading days | day						20
Number of consecutive trading days | day						30
Cure period						30 days
Cure or waiver period						60 days
Guarantor or subsidiaries for the payment						$ 20,000
Period for discharge or stay						60 days
Percentage of noteholders						25.00%
Right to receive special interest maximum term						180 days
Right to receive special interest maximum rate						0.50%
Seller Note – Preclinical Research Services | Unsecured Debt
DEBT
Principal amount				$ 800
Interest Rate (as a percent)				4.50%
Seller Note – Bolder BioPath (Related party) | Unsecured Debt
DEBT
Principal amount																$ 1,500
Interest Rate (as a percent)																4.50%
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Long-Term Debt								$ 470