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Company Overview - STL Acquisition (Details)
$ in Millions
May 29, 2019
USD ($)
STL  
Business Acquisition [Line Items]  
Controlling interest acquired, ownership percentage 70.00%
Total consideration for business acquisition $ 5.1
Redeemable noncontrolling interests recognized $ 3.4
STL  
Business Acquisition [Line Items]  
Redeemable noncontrolling interests, ownership percentage 30.00%