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Commitments - Additional Information (Details)
$ in Thousands
1 Months Ended
Apr. 30, 2019
USD ($)
Sep. 30, 2019
USD ($)
Oct. 31, 2018
USD ($)
ft²
Operating Leased Assets [Line Items]      
Minimum lease obligations   $ 22,997  
Hopkins, MN      
Operating Leased Assets [Line Items]      
Term of lease     13 years
Minimum lease obligations     $ 14,800
Lessee, Operating Lease, Area Of Real Estate | ft²     59,497
Proceeds from tenant improvement allowance $ 3,300