Repurchase of Common Stock - Summary of share repurpose activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
May 31, 2021	May 31, 2020
Repurchase of common stock
Aggregate value of shares	$ 110,074	$ 10,013
Stock Compensation Plan
Repurchase of common stock
Number of shares (in shares)	65,644	60,845,000
Aggregate value of shares	$ 14,590	$ 10,013
Average price per share (in dollars per share)	$ 222.26	$ 164.56
Open Market
Repurchase of common stock
Number of shares (in shares)	436,842	0
Aggregate value of shares	$ 95,484	$ 0
Average price per share (in dollars per share)	$ 218.58	$ 0

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