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Leases - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 29, 2020
Feb. 28, 2019
Feb. 28, 2018
Mar. 01, 2019
Lessee, Lease, Description [Line Items]        
Operating lease assets $ 32,645      
Total lease liability 44,502      
Operating lease expense 7,800 $ 6,400    
Rent expense related to operating leases   $ 7,900 $ 5,500  
Accounting Standards Update 2016-02        
Lessee, Lease, Description [Line Items]        
Operating lease assets 37,100     $ 37,100
Total lease liability $ 47,200     $ 47,200
Minimum        
Lessee, Lease, Description [Line Items]        
Remaining lease terms 1 year      
Maximum        
Lessee, Lease, Description [Line Items]        
Remaining lease terms 13 years