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Commitments and Contingencies - Contingencies (Details)
Sep. 12, 2016
USD ($)
Oct. 07, 2013
USD ($)
lease
Jun. 30, 2017
USD ($)
Assignment and Assumption of Lease Agreements      
Loss Contingencies [Line Items]      
Number of leases assigned to purchasers | lease   21  
Outstanding lease guarantees     $ 4,891,000
Tails Inc.      
Loss Contingencies [Line Items]      
Cash consideration   $ 20,175,000  
Full House Mortgage Connection, Inc.      
Loss Contingencies [Line Items]      
Contingent consideration period 10 years    
Contingent consideration liability $ 6,300,000   $ 6,230,000
Cash consideration $ 8,000,000