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Leases - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Leases [Abstract]    
Operating lease, weighted average remaining lease term 21 years  
Operating lease, weighted average discount rate, percent 4.50%  
Finance lease, weighted average remaining lease term 13 years 9 months 18 days  
Finance lease, weighted average discount rate, percent 5.20%  
Operating lease, cost $ 2.0 $ 1.4
Finance lease, cost 0.1 0.1
Operating lease, payments 1.3 1.0
Right-of-use asset obtained in exchange for operating lease liability 2.4 1.5
Sublease income $ 2.3 $ 2.1