Goodwill and Intangible Assets - Carrying amount of goodwill (Details) $ in Thousands	3 Months Ended
May 31, 2022 USD ($)
Changes in the carrying amount of goodwill
Balance, February 28, 2022	$ 577,896
Impairment	(299,705)
Balance, May 31, 2022	$ 278,191

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration