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Commitments and Contingencies - Other Commitments (Details)
3 Months Ended
Jan. 15, 2019
USD ($)
floor
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
floor
Mar. 31, 2019
USD ($)
Oct. 03, 2019
USD ($)
Property, Plant and Equipment [Line Items]          
Number of floors purchased | floor 5   1    
Purchase price of property $ 27,000,000.0 $ 46,085,000 $ 24,400,000 $ 35,261,000  
Number of floors with the option to purchase | floor 3   3    
Amount of total Promotional Rights Agreement         $ 36,000,000.0
Building Floor [Member]          
Property, Plant and Equipment [Line Items]          
Long-term Purchase Commitment, Amount   $ 21,400,000