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Fair Value Measurements - Schedule of Investment Measured at Fair Value on a Recurring Basis (Details)
$ in Thousands
Feb. 29, 2020
USD ($)
Fair Value Measurements, Recurring | Level 1 | Certificate of Deposits  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Investments measured at fair value $ 13,000