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RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES - Narrative (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Dec. 31, 2022 USD ($) leasedOfficeSpace	Sep. 30, 2022 leasedOfficeSpace	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges and adjustments | $	$ 6,385		$ 0	$ 10,086	$ 0
Number of leased office space exited | leasedOfficeSpace	3
ROU asset group impairments | $	$ 5,358		$ 0	15,528	$ 0
Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring charges and adjustments | $				2,600
Restructuring reserve | $	2,600			2,600
Facility Closing | Restructuring Activity 2017
Restructuring Cost and Reserve [Line Items]
Restructuring charges and adjustments | $				7,300
Restructuring reserve | $	2,300			2,300
United States
Restructuring Cost and Reserve [Line Items]
Number of leased office space exited | leasedOfficeSpace		3
United States | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges and adjustments | $				7,400
Restructuring reserve | $	$ 5,300			$ 5,300
MASSACHUSETTS
Restructuring Cost and Reserve [Line Items]
Number of leased office space exited | leasedOfficeSpace		1
PENNSYLVANIA
Restructuring Cost and Reserve [Line Items]
Number of leased office space exited | leasedOfficeSpace		1
CALIFORNIA
Restructuring Cost and Reserve [Line Items]
Number of leased office space exited | leasedOfficeSpace		1
ARIZONA
Restructuring Cost and Reserve [Line Items]
Number of leased office space exited | leasedOfficeSpace	1
NETHERLANDS
Restructuring Cost and Reserve [Line Items]
Number of leased office space exited | leasedOfficeSpace	1
London, England
Restructuring Cost and Reserve [Line Items]
Number of leased office space exited | leasedOfficeSpace	1

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Amount of loss from impairment of right-of-use asset from operating lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 25
-Paragraph 6
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=123399704&loc=SL77918431-209957

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b)(2))
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