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Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Feb. 28, 2021	May 31, 2020
Assets acquired
Goodwill	$ 201,102	$ 200,515
Eximo Medical, Ltd.
Assets acquired
Accounts receivable		50
Inventory		150
Prepaid and other current assets		54
Long-term deposits		51
Property, plant and equipment		397
Goodwill		11,427
Total assets acquired		72,429
Liabilities assumed
Accounts payable		84
Other current liabilities		615
Deferred tax liabilities		11,070
Total liabilities assumed		11,769
Net assets acquired		60,660
Eximo Medical, Ltd. | Product technology
Assets acquired
Product technology		$ 60,300

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