Description of Business and Summary of Significant Accounting Policies - Investment Securities - Additional Information (Details) $ in Thousands	12 Months Ended
Feb. 28, 2021 USD ($)
Gain (Loss) on Securities [Line Items]
Cost-method investments, realized gain (loss)	$ 42
RxNetworks [Member]
Gain (Loss) on Securities [Line Items]
Cost-method investments, realized gain (loss)	$ 42

The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Name:	us-gaap_GainLossOnSaleOfInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration